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senior machine learning scientist

Booking.com

<div>
 At Booking.com, data drives our decisions. Technology is at our core and innovation is everywhere. But our company is more than datasets, lines of code or A/B tests. We&rsquo;re the thrill of the first night in a new place. The excitement of the next morning. The friends you make. The journeys you take. The sights you see. And the food you sample. Through our products, partners and people, we can empower everyone to experience the world.
 
 
 
 We&rsquo;re looking for a Senior Machine Learning Scientist I to join our Travel LLMs and Agentic team in Amsterdam.
 
 
 
 
 About the team:
 
 
 
 The team is at the forefront of Generative AI innovation, driving solutions for travel-related chatbots, text generation and summarization applications, Q&amp;A systems, and free-text search.
 
 
 The team you are applying to is spearheading a research effort to develop leading LLMs, specifically designed for the travel domain and advanced agentic capabilities.
 
 
 This pioneering initiative combines cutting-edge AI research with practical applications, focusing on creating tailored solutions that redefine how travelers plan, book, and experience their journeys.
 
 
 
 Role Description:
 
 
 
 As a Machine Learning Scientist, your work will focus on building, training, and deploying cutting-edge Generative AI models. This includes developing foundation models trained on Booking.com&rsquo;s extensive textual data and creating fine-tuned models designed to tackle complex travel-related tasks. Your leadership will play a pivotal role in advancing the application of AI to transform the travel experience for millions of customers.
 
 
 
 Key Job Responsibilities and Duties:
 
 
 
 <ul>
 <li>
 Explore and apply state-of-the-art techniques in multimodal machine learning.
 </li>
 <li>
 Train innovative ML models (NLP, CV, LLM-finetuning&hellip;), build algorithms, and engineering approaches to drive business impact..
 </li>
 <li>
 Coding skills: ensure implementation of reusable frameworks (clean and scalable code).
 </li>
 <li>
 Conduct data analysis with detailed metrics to evaluate model&rsquo;s performance, labels quality, features exploration.
 </li>
 <li>
 Work closely with machine learning engineers to ensure the model's latency/throughput meets product requirements and ensure deployment of your model to production.
 </li>
 <li>
 Collaborate with multidisciplinary teams: Collaborate with product managers, data scientists, and analysts to understand business requirements and translate them into machine learning solutions.
 
 
 
 </li>
 </ul>
 
 Role Qualifications and Requirements:
 
 
 
 <ul>
 <li>
 Advanced knowledge and experience in Computer Vision and Natural Language Processing, engineering aspects of developing ML and Generative AI models at scale.
 </li>
 <li>
 Experience designing and executing end-to-end research and development plans and generating impact through large-scale machine learning model development. Preferably evidenced by peer-reviewed publication, patents, open sourced code or the like.
 </li>
 <li>
 Relevant work or academic experience (MSc + 6 years of working experience, or PhD + 4 years of working experience), involved in the application of Machine Learning to business problems.
 </li>
 <li>
 Masters degree, PhD or equivalent experience in a quantitative field (e.g. Computer Science, Engineering Mathematics, Artificial Intelligence, Physics, etc.).
 </li>
 <li>
 Experience on multiple machine learning facets: working with large data sets, model development, statistics, experimentation, data visualization, optimization, software development.
 </li>
 <li>
 Experience collaborating cross functionally in the development of machine learning products (e.g. Developers, UX specialists, Product Managers, etc.).
 </li>
 <li>
 Strong working knowledge of Python, Java, Kafka, Hadoop, SQL, and Spark or similar technologies. Working experience with version control systems.
 </li>
 <li>
 Excellent English communication skills, both written and verbal.
 </li>
 <li>
 Successfully driving technical, business and people related initiatives that improve productivity, performance and quality while communicating with stakeholders at all levels
 </li>
 <li>
 Leading by example, gaining respect through actions, not your title. Developing your team and motivating them to achieve their goals. Providing feedback timely and managing your key team performance indicators
 
 
 
 </li>
 </ul>
 
 Benefits &amp; Perks: Global Impact, Personal Relevance
 
 
 
 Booking.com&rsquo;s Total Rewards Philosophy is not only about compensation but also about benefits. Our Total Rewards strive to make it easier for you to experience all that life has to offer on your terms so that you can focus on what really matters. We offer competitive compensation as well as thoughtful, valuable, and even fun benefits which include:
 
 
 <ul>
 <li>
 Headquarters located in one of the most dynamic and cosmopolitan cities in Europe: Amsterdam.
 </li>
 <li>
 Contribute to a high scale, sophisticated, world-class product and see the real time impact of your work on millions of travelers worldwide.
 </li>
 <li>
 Be part of a truly international fast paced environment and performance driven culture.
 </li>
 <li>
 Performance-based company that offers career advancement, and lucrative compensation, including bonuses and stock potential.
 </li>
 <li>
 Discount on Booking.com accommodations with the &ldquo;Booking Deal&rdquo; including other perks and benefits.
 </li>
 <li>
 Company-sponsored family and social activities to help our employees become integrated with each other and the company's culture.
 </li>
 <li>
 Diverse and creative colleagues from every corner of the world.
 </li>
 <li>
 Health, life, and disability insurance*
 </li>
 <li>
 Annual paid time off and generous paid leave scheme including: parent, grandparent, bereavement, and care leave.
 </li>
 <li>
 Hybrid working including flexible working arrangements, and up to 20 days per year working from abroad (home country).
 </li>
 <li>
 Industry leading product discounts for yourself, friends, and family, including automatic Genius Level 3 status and quarterly Booking.com wallet credit.
 </li>
 <li>
 Free access to online learning platforms, development and mentorship programs, and a complimentary Headspace membership
 
 
 
 </li>
 </ul>
 
 #ThinkInclusion: Wellbeing &amp; Inclusion at Booking.com:
 
 
 
 Inclusion, Diversity, Belonging, Wellbeing and Volunteering (IDBWV) have been a core part of our company culture since day one. This ongoing journey starts with our very own employees, who represent over 140 nationalities and a wide range of ethnic and social backgrounds, genders and sexual orientations.
 
 
 Take it from our Chief People Officer, Paulo Pisano: &ldquo;At Booking.com, the diversity of our people doesn&rsquo;t just create a unique workplace, it also creates a better and more inclusive travel experience for everyone. Inclusion is at the heart of everything we do. It&rsquo;s a place where you can make your mark and have a real impact in travel and tech.&rdquo;
 
 
 We will ensure that individuals with disabilities are provided reasonable adjustment to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.
 
 
 
 Pre-Employment Screening
 
 
 
 
 If your application is successful, your personal data may be used for a pre-employment screening check by a third party as permitted by applicable law. Depending on the vacancy and applicable law, a pre-employment screening may include employment history, education and other information (such as media information) that may be necessary for determining your qualifications and suitability for the position.
 
</div>

Senior Machine Learning Scientist

<div>Role Description:

At Booking.com, data drives our decisions. Technology is at our core and innovation is everywhere. But our company is more than datasets, lines of code or A/B tests. We&rsquo;re the thrill of the first night in a new place. The excitement of the next morning. The friends you make. The journeys you take. The sights you see. And the food you sample. Through our products, partners and people, we can empower everyone to experience the world. 
We&rsquo;re looking for a Senior Machine Learning Scientist I to join our Travel LLMs and Agentic team in Amsterdam. 
About the team:
The team is at the forefront of Generative AI innovation, driving solutions for travel-related chatbots, text generation and summarization applications, Q&amp;A systems, and free-text search.
The team you are applying to is spearheading a research effort to develop leading LLMs, specifically designed for the travel domain and advanced agentic capabilities.
This pioneering initiative combines cutting-edge AI research with practical applications, focusing on creating tailored solutions that redefine how travelers plan, book, and experience their journeys. 
Role Description:
As a Machine Learning Scientist, your work will focus on building, training, and deploying cutting-edge Generative AI models. This includes developing foundation models trained on Booking.com&rsquo;s extensive textual data and creating fine-tuned models designed to tackle complex travel-related tasks. Your leadership will play a pivotal role in advancing the application of AI to transform the travel experience for millions of customers. 
Key Job Responsibilities and Duties:<ul><li> 
Explore and apply state-of-the-art techniques in multimodal machine learning.</li><li>
Train innovative ML models (NLP, CV, LLM-finetuning&hellip;), build algorithms, and engineering approaches to drive business impact..</li><li>
Coding skills: ensure implementation of reusable frameworks (clean and scalable code).</li><li>
Conduct data analysis with detailed metrics to evaluate model&rsquo;s performance, labels quality, features exploration.</li><li>
Work closely with machine learning engineers to ensure the model's latency/throughput meets product requirements and ensure deployment of your model to production.</li><li>
Collaborate with multidisciplinary teams: Collaborate with product managers, data scientists, and analysts to understand business requirements and translate them into machine learning solutions.</li></ul>
Role Qualifications and Requirements:<ul><li>
Advanced knowledge and experience in Computer Vision and Natural Language Processing, engineering aspects of developing ML and Generative AI models at scale.</li><li>
Experience designing and executing end-to-end research and development plans and generating impact through large-scale machine learning model development. Preferably evidenced by peer-reviewed publication, patents, open sourced code or the like.</li><li>
Relevant work or academic experience (MSc + 6 years of working experience, or PhD + 4 years of working experience), involved in the application of Machine Learning to business problems.</li><li>
Masters degree, PhD or equivalent experience in a quantitative field (e.g. Computer Science, Engineering Mathematics, Artificial Intelligence, Physics, etc.).</li><li>
Experience on multiple machine learning facets: working with large data sets, model development, statistics, experimentation, data visualization, optimization, software development.</li><li>
Experience collaborating cross functionally in the development of machine learning products (e.g. Developers, UX specialists, Product Managers, etc.).</li><li>
Strong working knowledge of Python, Java, Kafka, Hadoop, SQL, and Spark or similar technologies. Working experience with version control systems.</li><li>
Excellent English communication skills, both written and verbal.</li><li>
Successfully driving technical, business and people related initiatives that improve productivity, performance and quality while communicating with stakeholders at all levels</li><li>
Leading by example, gaining respect through actions, not your title. Developing your team and motivating them to achieve their goals. Providing feedback timely and managing your key team performance indicators</li></ul> 
Benefits &amp; Perks: Global Impact, Personal Relevance
Booking.com&rsquo;s Total Rewards Philosophy is not only about compensation but also about benefits. Our Total Rewards strive to make it easier for you to experience all that life has to offer on your terms so that you can focus on what really matters. We offer competitive compensation as well as thoughtful, valuable, and even fun benefits which include:<ul><li>
Headquarters located in one of the most dynamic and cosmopolitan cities in Europe: Amsterdam.</li><li>
Contribute to a high scale, sophisticated, world-class product and see the real time impact of your work on millions of travelers worldwide.</li><li>
Be part of a truly international fast paced environment and performance driven culture.</li><li>
Performance-based company that offers career advancement, and lucrative compensation, including bonuses and stock potential.</li><li>
Discount on Booking.com accommodations with the &ldquo;Booking Deal&rdquo; including other perks and benefits.</li><li>
Company-sponsored family and social activities to help our employees become integrated with each other and the company's culture.</li><li>
Diverse and creative colleagues from every corner of the world.</li><li>
Health, life, and disability insurance*</li><li>
Annual paid time off and generous paid leave scheme including: parent, grandparent, bereavement, and care leave.</li><li>
Hybrid working including flexible working arrangements, and up to 20 days per year working from abroad (home country).</li><li>
Industry leading product discounts for yourself, friends, and family, including automatic Genius Level 3 status and quarterly Booking.com wallet credit.</li><li>
Free access to online learning platforms, development and mentorship programs, and a complimentary Headspace membership</li></ul>
#ThinkInclusion: Wellbeing &amp; Inclusion at Booking.com:
Inclusion, Diversity, Belonging, Wellbeing and Volunteering (IDBWV) have been a core part of our company culture since day one. This ongoing journey starts with our very own employees, who represent over 140 nationalities and a wide range of ethnic and social backgrounds, genders and sexual orientations.
Take it from our Chief People Officer, Paulo Pisano: &ldquo;At Booking.com, the diversity of our people doesn&rsquo;t just create a unique workplace, it also creates a better and more inclusive travel experience for everyone. Inclusion is at the heart of everything we do. It&rsquo;s a place where you can make your mark and have a real impact in travel and tech.&rdquo;
We will ensure that individuals with disabilities are provided reasonable adjustment to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.</div>

<div>Role Description:
<h2 class="jobSectionHeader">About Us</h2>
At Booking.com, data drives our decisions. Technology is at our core. And innovation is everywhere. But our company is more than datasets, lines of code or A/B tests. We&rsquo;re the thrill of the first night in a new place. The excitement of the next morning. The friends you make. The journeys you take. The sights you see. And the food you sample. Through our products, partners and people, we make it easier for everyone to experience the world.<h2 class="jobSectionHeader">
About the team</h2>
This opening is for the ABU ML team within Margin Management of the Accommodation Business Unit (ABU).
The ABU ML team develops causal machine learning systems that power one of Booking.com&rsquo;s biggest customer acquisition channels. We predict which promotional investments will drive genuinely incremental demand and deploy these models in production at scale. The work involves uplift modeling, causal inference under marketplace interference, neural network design for structured data, and rigorous online experimentation.
The team actively contributes to the research community, our recent work &ldquo;Converted Data is All You Need for Causal Optimization of e-Commerce Promotions&rdquo; was published at ACM CIKM 2025. We encourage publishing and conference participation when the work advances the state of the art.<h2 class="jobSectionHeader">
Role Description</h2>
As a Senior Machine Learning Scientist, you will design, build, and deploy uplift models and causal inference systems that allocate promotional spend across Booking.com&rsquo;s accommodation marketplace. The role combines causal methodology, neural network architecture design, and production ML &mdash; with your work validated through large-scale A/B experiments. There are opportunities to publish applied research at top venues when the work contributes novel methodology.<h2 class="jobSectionHeader">
Key Job Responsibilities and Duties:</h2><ul><li>
Design and deploy uplift models that estimate heterogeneous treatment effects, optimising incremental return on investment under budget constraints.</li><li>
Design and execute causal inference methodologies; including observational debiasing (IPW, doubly robust estimation), sensitivity analysis, and interference-aware evaluation to close the gap between offline metrics and online impact.</li><li>
Advance the team&rsquo;s neural network architectures for uplift modeling on tabular data (attention mechanisms, multi-head designs, self-supervised pretraining), balancing model expressiveness with production latency requirements.</li><li>
Research marketplace interference and cannibalization; building frameworks to measure and correct for demand shifting when partial treatment is applied across competing properties.</li><li>
Develop offline evaluation methods that reliably predict online performance, accounting for biases introduced by non-stationary treatment policies and interference effects.</li><li>
Own models end-to-end; from research through A/B experimentation to production calibration.</li><li>
Collaborate cross-functionally with ML engineers on pipeline and serving design, with data scientists on feature engineering, and with product and business stakeholders on spend strategy and ROI trade-offs.</li><li>
Actively coach and mentor less experienced team members, setting technical direction and providing guidance on causal modeling best practices.</li></ul><h2 class="jobSectionHeader">
Qualifications &amp; Skills:</h2><ul><li>
MSc or PhD (or equivalent experience) in a quantitative field such as Computer Science, Statistics, Economics, Econometrics, Operations Research, Mathematics, or Physics.</li><li>
Relevant professional or academic experience applying Machine Learning to business problems (typically MSc + 4 years, or PhD + 2 years).</li><li>
Advanced knowledge and experience in Causal Inference, Uplift Modeling, or Treatment Effect Estimation. Experience with heterogeneous treatment effects, interference / spillover effects, or policy learning is highly valued.</li><li>
Proven track record designing and executing end-to-end R&amp;D plans, and generating measurable impact through large-scale ML model development. Evidence such as peer-reviewed publications, patents, or open-source contributions is a plus.</li><li>
Strong proficiency in Python and modern ML frameworks (e.g., TensorFlow, PyTorch, LightGBM, XGBoost).</li><li>
Solid understanding of experimental design, A/B testing, and statistical methodology &mdash; including awareness of SUTVA violations, selection bias, and observational study limitations.</li><li>
Experience working with large-scale data systems and production ML pipelines (Spark, Airflow, or similar).</li><li>
Experience with neural network design for structured/tabular data (embeddings, attention, multi-task architectures) is a strong plus.</li><li>
Experience collaborating cross-functionally with developers, analysts, product managers, and other scientists to deliver ML-powered products.</li><li>
Excellent English communication skills, both written and verbal. Ability to communicate complex causal reasoning clearly to both technical and non-technical audiences.</li><li>
Successfully driving technical initiatives and cross-team collaboration while communicating with stakeholders at all levels.</li></ul> 
Benefits &amp; Perks - Global Impact, Personal Relevance:
Booking.com&rsquo;s Total Rewards Philosophy is not only about compensation but also about benefits. We offer a competitive compensation and benefits package, as well unique-to-Booking.com benefits which include:<ul><li>
Annual paid time off and generous paid leave scheme including: parent, grandparent, bereavement, and care leave</li><li>
Hybrid working including flexible working arrangements, and up to 20 days per year working from abroad (home country)</li><li>
Industry leading product discounts - up to 1400 per year - for yourself, including automatic Genius Level 3 status and Booking.com wallet credit</li></ul> 
Inclusion at Booking.com:
Inclusion has been a core part of our company culture since day one. This ongoing journey starts with our very own employees, who represent over 140 nationalities and a wide range of ethnic and social backgrounds, genders and sexual orientations. 
Take it from our Chief People Officer, Paulo Pisano: &ldquo;At Booking.com, the diversity of our people doesn&rsquo;t just build an outstanding workplace, it also creates a better and more inclusive travel experience for everyone. Inclusion is at the heart of everything we do. It&rsquo;s a place where you can make your mark and have a real impact in travel and tech.&rdquo; 
We ensure that colleagues with disabilities are provided the adjustments and tools they need to participate in the job application and interview process, to perform crucial job functions, and to receive other benefits and privileges of employment. 
Application Process:<ul><li>
Let&rsquo;s go places together: How we Hire</li><li>
This role does not come with relocation assistance.</li></ul>
Booking.com is proud to be an equal opportunity workplace and is an affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We strive to move well beyond traditional equal opportunity and work to create an environment that allows everyone to thrive.</div>

Senior Machine Learning Scientist - ABU

SoTalent

<div>
 
 Data Scientist
 
 
 
 📍 Amsterdam, Netherlands | Hybrid/Flexible Working
 
 
 
 An exciting opportunity is available for a
 
 Data Scientist
 
 to develop production-ready machine learning, NLP, and Generative AI solutions that help transform complex scientific data into intelligent, real-world applications.
 
 
 Working within a collaborative, cross-functional environment, you'll design and deploy AI-powered solutions that improve knowledge discovery, information retrieval, semantic search, and decision support using large-scale scientific content and data.
 
 
 Key Responsibilities
 
 <ul>
 <li>
 Design, develop and deploy machine learning, NLP and Generative AI solutions for scientific discovery and intelligent content understanding.
 </li>
 <li>
 Build models supporting semantic search, information retrieval, recommendation systems, question answering, summarisation, entity extraction and content classification.
 </li>
 <li>
 Work with large-scale structured and unstructured datasets including scientific publications, research data, knowledge graphs, ontologies, metadata and citations.
 </li>
 <li>
 Apply a range of machine learning techniques including classification, regression, clustering, ranking, deep learning, embeddings, LLMs and retrieval-based methods.
 </li>
 <li>
 Fine-tune, evaluate and integrate AI models into scalable, production-ready systems.
 </li>
 <li>
 Develop clean, maintainable Python code and reusable data science components, pipelines and experimentation frameworks.
 </li>
 <li>
 Monitor model performance, detect drift, support automated retraining and continuously optimise deployed solutions.
 </li>
 <li>
 Partner closely with engineering, product, UX, analytics and domain experts to translate business challenges into measurable AI solutions.
 </li>
 <li>
 Communicate technical concepts, model performance and recommendations to both technical and non-technical stakeholders.
 </li>
 </ul>
 
 Skills &amp; Experience
 
 <ul>
 <li>
 Experience in Data Science, Machine Learning, Artificial Intelligence, Natural Language Processing, Statistics, Computer Science or another quantitative discipline.
 </li>
 <li>
 Strong Python programming skills with experience writing clean, well-tested and maintainable code.
 </li>
 <li>
 Experience working with Large Language Models (LLMs), including platforms such as GPT, Claude or Gemini, with exposure to prompt engineering, fine-tuning or model integration.
 </li>
 <li>
 Solid understanding of supervised and unsupervised learning, feature engineering, model evaluation and performance optimisation.
 </li>
 <li>
 Experience working with large structured, semi-structured or unstructured datasets, particularly text-heavy datasets.
 </li>
 <li>
 Proficiency with modern machine learning libraries such as Pandas, NumPy, SciPy, Scikit-learn, PyTorch or TensorFlow.
 </li>
 <li>
 Strong analytical thinking with the ability to solve complex problems and convert ambiguous requirements into practical solutions.
 </li>
 <li>
 Excellent communication and collaboration skills with experience working across multidisciplinary teams.
 </li>
 </ul>
 
 What's on Offer
 
 <ul>
 <li>
 Flexible working arrangements supporting work-life balance.
 </li>
 <li>
 Hybrid working environment.
 </li>
 <li>
 Wellbeing initiatives, parental leave, study assistance and sabbatical opportunities.
 </li>
 <li>
 The opportunity to work on cutting-edge AI, NLP and machine learning technologies.
 </li>
 <li>
 A collaborative, innovative environment where your work contributes to advancing scientific research and healthcare worldwide.
 </li>
 <li>
 Competitive salary and comprehensive benefits package.
 </li>
 </ul>
 
 If you're passionate about applying machine learning and Generative AI to solve meaningful real-world problems while working with large-scale scientific data, this is an excellent opportunity to make a significant impact.
 
</div>

Data Scientist

<div>Role Description:

This role does not come with relocation assistance 
About Us: At Booking.com, data drives our decisions. Technology is at our core. And innovation is everywhere. But our company is more than datasets, lines of code or A/B tests. We&rsquo;re the thrill of the first night in a new place. The excitement of the next morning. The friends you encounter. The journeys you take. The sights you see. And the memories you make. Through our products, partners and people, we make it easier for everyone to experience the world. 
Role and Team Overview
As a Senior Data Scientist in Ranking and Ads, you will work autonomously on impactful strategic business problems, translating them into data stories and delivering insights that inform business decisions across multiple products. The Senior Data Scientist for this team will specialise specifically in Ads. You will design and interpret experiments to guide long-term strategic decisions, build proofs of concept and prototypes, and actively manage stakeholders from operational to Director level. You'll collaborate cross-functionally with Product, Engineering, and Data Engineering teams, writing high-quality, reproducible code to ensure your work lands impactfully and enables solid decision-making across leadership. 
Ranking and Ads Insights is a new and expanding, highly commercial team providing Data Science and Analytics support within Marketplace. Our mission is to power Ads across Booking.com and support Ranking ML teams to show the right properties to the right people. 
Our work enables partners to reach travelers at the perfect moment while preserving customer experience and driving commercial impact. This is a unique opportunity to apply your business awareness to high-stakes initiatives, ensuring your work not only solves complex data problems but actively shapes the strategy for the Ads part of our scope in particular. 
You&rsquo;ll work in a cross-functional team alongside Machine Learning, Data Engineering, and Data Management to support our product vision. Strong commercial acumen and stakeholder management will ensure that your work is impactful and drives business results. 
To get a flavor of the Data Science &amp; ML work at Booking, check out our blog here. 
Key Job Responsibilities and Duties<ul><li>
Responsible for defining the strategy and vision for generating impact in one or more Data Science solutions by driving it from ideation to prototyping to full productionisation.</li><li>
Responsible for proactively identifying and autonomously prioritizing impactful strategic business problems, translating them into data stories and solving them effectively by applying suitable statistical data analysis and modeling methods. Leverages input from product stakeholders in all of the above to determine the right technical solutions to deliver customer value. May seek guidance from the manager on complex business problems.</li><li>
Responsible for driving key projects within the scope of their team to deliver work that informs business decisions across multiple products / business topics in parallel and/or core products / business topics of the area they work in, while self-prioritizing at high velocity. Regularly collaborating across multiple teams.</li><li>
Responsible for designing and interpreting quantitative experiments to objectively drive long-term strategic business decision making.</li><li>
Responsible for autonomously identifying and managing a broad range of stakeholders, from operational to senior managerial roles and, as required, Director level stakeholders. Maintains effective communication, addresses stakeholder needs, and conveys complex analysis results clearly. Continues to guide less experienced colleagues in all of the above, but may seek guidance from the manager in complex situations with senior stakeholders.</li><li>
Responsible for exploring and modifying existing internal and external Data Science approaches. Makes these solutions reusable by designing for easy adoption and proactively educating and upskilling peers on how to effectively utilize these solutions in their work.</li><li>
Responsible for incorporating scalability, reproducibility and long term orientation in the work they do. Regularly sharing best practices with peers in their area.</li><li>
Responsible for acting as a force multiplier for peers in their area by actively helping them with their craft through means of coaching, mentoring and setting a good example.</li><li>
Responsible for contributing significantly to the community of their area by thinking of and implementing ways to make other data professionals more effective (ie. group trainings, community projects), actively participating in community strengthening activities (ie. recruitment) and connecting their area to the rest of the business.</li><li>
Must have a deep understanding of the larger data ecosystem at Booking and how it relates to the work they do.</li><li>
Responsible for proactively collaborating with peers in related crafts (ie. Data Engineering) on all projects owned by their team, anticipating data needs to maintain smooth execution of projects.</li><li>
Responsible for having significant deep knowledge about the operational, tactical and strategic goals of their area (ie. track / vertical) and be knowledgeable of the goals of their wider area (ie. Business Unit).</li><li>
Responsible for ensuring quality of their own work by validating it through peer review.</li><li>
Responsible for influencing business decisions within their wider area (ie. track / vertical).</li><li>
Must be a subject-matter expert in one area of Data Science (ie. methodology, technology) and its application as an end-to-end product that generates business impact, acting as a go-to Data Science authority for senior business stakeholders of their area.</li></ul> 
Role Qualifications and Requirements<ul><li>
Knowledgeable about statistical properties of (good) metrics, and ability to scalably test them</li><li>
Expertise in experimentation and knowledge of causal inference beyond A/B testing</li><li>
Expertise in SQL, Python and familiarity with other languages like R</li><li>
Experience building libraries/modules in python</li><li>
Familiarity with apis using is good, building/maintaining is great</li><li>
Strong understanding of fundamental machine learning concepts</li><li>
Strong knowledge of reporting/visualization techniques (e.g., Tableau, Graphite, Power BI, etc.)</li></ul> 
Benefits &amp; Perks: Global Impact, Personal Relevance<ul><li>
Annual paid time off and generous paid leave scheme including: parental (22-weeks paid leave), grandparent, bereavement, and care leave</li><li>
Hybrid working including flexible working arrangements, working from home furniture and ergonomic support, and up to 20 days per year working from abroad (home country)</li><li>
A beautiful sustainable HQ Campus in Amsterdam, that offers on-site meals, coffee, and snacks, multi-faith and breastfeeding rooms at the office</li><li>
Commuting allowance and bike reimbursement scheme</li><li>
Discounts &amp; Wallet credits to spend on our products, upgrade to Booking.com Genius Level 3, and friends &amp; family Booking.com discount vouchers</li><li>
Free access to online learning platforms, development and mentorship programs</li><li>
Global Employee Assistance Program, free Headspace membership</li></ul> 
Inclusion at Booking.com:
Inclusion has been a core part of our company culture since day one. This ongoing journey starts with our very own employees, who represent over 140 nationalities and a wide range of ethnic and social backgrounds, genders and sexual orientations.
 Take it from our Chief People Officer, Paulo Pisano: &ldquo;At Booking.com, the diversity of our people doesn&rsquo;t just build an outstanding workplace, it also creates a better and more inclusive travel experience for everyone. Inclusion is at the heart of everything we do. It&rsquo;s a place where you can make your mark and have a real impact in travel and tech.&rdquo;
 We ensure that colleagues with disabilities are provided the adjustments and tools they need to participate in the job application and interview process, to perform crucial job functions, and to receive other benefits and privileges of employment. 
Application Process<ul><li>
The interview process will entail a call with one of our Recruiters and a total of 3 interviews, all conducted via Zoom video conferencing.</li><li>
This role does not come with relocation assistance.</li></ul> 
Booking.com is proud to be an equal opportunity workplace and is an affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We strive to move well beyond traditional equal opportunity and work to create an environment that allows everyone to thrive.</div>

Senior Data Scientist - Ranking and Ads Insights

ABN AMRO

<div>Data Scientist Transaction Banking (Amsterdam)<div><div><div><h2 class="jobSectionHeader">
In het kort</h2></div><div>
Ben jij een Data Scientist met interesse in de financi&euml;le sector en wil je &eacute;cht impact maken met data? In het Transaction Banking Data Domain werk je in een ambitieus team van dataprofessionals aan vraagstukken die er toe doen, van strategie tot operatie. Je krijgt de ruimte om te experimenteren, je verder te ontwikkelen en met jouw inzichten het verschil te maken.</div></div><div><div><h2 class="jobSectionHeader">
Werkomgeving</h2></div><div>
Wij zijn het Advanced Analytics &amp; AI Center of Expertise (AA&amp;AI CoE), onderdeel van het Transaction Banking Data Domain. Onze missie is om maximale waarde te halen uit transactionele bankdata en zo bij te dragen aan betere besluitvorming binnen de bank. Ons domein omvat een breed portfolio aan producten en diensten, zoals rekeningen, betaalkaarten, spaarproducten, verzekeringen, open banking API&rsquo;s, handelsfinanciering en digitale oplossingen zoals Apple Pay en Google Pay. Ook de bijbehorende verkoop-, bedrijfs- en risicomanagementprocessen vallen hieronder. Met datagedreven inzichten spelen we een belangrijke rol in het versterken van de resultaten van de bank. 
We zetten advanced analytics en nieuwe technologie&euml;n (zoals Generative AI) in om waarde uit data te halen. Denk aan het ontdekken van trends in productgebruik en transacties, het voorspellen van ontwikkelingen, het optimaliseren van processen en het verbeteren van prestaties. Daarnaast adviseren we over nieuwe proposities, zorgplichtvraagstukken en prioriteiten die bijdragen aan betere klant- en leveranciersrelaties. 
Ook werken we actief aan het vergroten van de datagedreven manier van werken binnen de organisatie. We helpen de bank om stappen te zetten in data maturity en data literacy, zodat data op alle niveaus beter wordt benut. 
Ons team bestaat uit ruim 40 collega&rsquo;s in Nederland en India. We werken in een open, informele en inclusieve omgeving, waarin ruimte is voor verschillende perspectieven. We hanteren agile werkwijzen en werken veel samen met collega&rsquo;s uit verschillende disciplines, zoals business experts, product owners en senior stakeholders. Dat biedt volop kansen om te leren, te groeien en je netwerk uit te breiden. 
Binnen het team staan ondernemerschap, samenwerking en plezier centraal. Successen vieren we samen, en we werken volgens de kernwaarden van de bank: Care, Collaboration en Courage.</div></div><div><div><h2 class="jobSectionHeader">
Je werk</h2></div><div><ul><li>
Je draagt bij aan geavanceerde analytics en AI-innovaties door use cases te ontwikkelen met nieuwe technologie&euml;n. Daarbij stimuleer je een cultuur van experimenteren, innovatie en continu verbeteren.</li><li>
Je ontwerpt en bouwt AI-oplossingen (zoals Machine Learning, Generative AI en AI Agents) in nauwe samenwerking met ML Engineers, AI Architects, Data Engineers en Data Analysts.</li><li>
Je vertaalt businessvraagstukken naar datavragen, verdiept je in processen achter producten en diensten, kiest passende analysetechnieken en legt verbanden.</li><li>
Je werkt mee aan projecten van begin tot eind en neemt daarin eigenaarschap, terwijl je ook actief samenwerkt in multidisciplinaire teams om stap voor stap waarde te realiseren.</li><li>
Je verkent en analyseert verschillende datasets (zoals producten, transacties, kanalen en klantdata) om tot relevante inzichten te komen.</li><li>
Je fungeert als sparringpartner voor stakeholders en ondersteunt hen met scherpe KPI&rsquo;s, rapportages en inzichten die aansluiten bij hun behoeften.</li><li>
Je presenteert inzichten helder en overtuigend met behulp van storytelling, duidelijke visualisaties en een gestructureerde aanpak.</li><li>
Je begeleidt niet-technische stakeholders en collega&rsquo;s bij advanced analytics vraagstukken en werkt samen met diverse teams.</li><li>
Je blijft op de hoogte van ontwikkelingen binnen advanced analytics, Generative AI en cloudplatforms (zoals Databricks) en daagt bestaande werkwijzen continu uit.</li><li>
Je zet je in voor verdere verbetering en automatisering van analytische oplossingen en processen en signaleert proactief nieuwe kansen.</li></ul></div></div><div><div><h2 class="jobSectionHeader">
Je profiel</h2></div><div><ul><li>
Afgeronde HBO of WO in STEM, Bedrijfskunde, of andere relevante analytische opleiding</li><li>
6-8 jaar werkervaring, waarvan minimaal 3 jaar op het gebied van data science.</li><li>
Skilled in Python, PySpark, SQL en kennis van coding best practices.</li><li>
Ervaring met Machine Learning en AI/GenAI</li><li>
Analytisch, nieuwsgierig, communicatief in Engels</li><li>
Pr&eacute;: Kennis van de financi&euml;le sector en/of bankproducten, Azure/Databricks of vergelijkbare cloudplatforms, machine learning, Microsoft DP-100, Microsoft AZ-900, Agile kenni</li></ul></div></div><div><div><h2 class="jobSectionHeader">
Wij bieden</h2></div><div>
Het is voor ons belangrijk om een goede werkgever te zijn. Wij bieden je daarom een functie met impact &eacute;n uitstekende arbeidsvoorwaarden die bijdragen aan jouw werkplezier, ontwikkeling en wellbeing. 
 
Daarnaast bieden wij:<ul><li>
Een aantrekkelijk bruto maandsalaris op basis van een 36‑urige werkweek. Dit is inclusief vakantiegeld en een flexibel benefit budget.</li><li>
Een uitstekende pensioenregeling, zodat je goed voorbereid bent voor later.</li><li>
Flexibiliteit in werken: thuiswerken is mogelijk in overleg met je team en afhankelijk van je functie. Wij regelen een ergonomische thuiswerkplek voor je.</li><li>
Ruimte voor ontspanning met vijf weken vakantie per jaar, aangevuld met twee verplichte vrije dagen. Daarnaast kun je jaarlijks tot vier extra weken vakantie bijkopen.</li><li>
Vijf &lsquo;Banking for better days&rsquo;: extra vrije dagen die je kunt inzetten voor persoonlijke ontwikkeling of vrijwilligerswerk.</li><li>
Persoonlijke ontwikkeling staat centraal: je ontvangt een ontwikkelbudget van &euro;1.000 per jaar, dat je kunt opsparen tot &euro;3.000.</li><li>
Een OV-jaarabonnement met gratis openbaar vervoer in heel Nederland voor zakelijk en priv&eacute; gebruik.</li></ul> 
Meer informatie over onze arbeidsvoorwaarden en salarisschalen vind je in onze CAO die van toepassing is op deze vacature.</div></div><div><div><h2 class="jobSectionHeader">
Interesse?</h2></div><div><div>
Graag ontvangen wij je sollicitatie via ons systeem, inclusief cv en motivatiebrief. Sollicitaties per e-mail worden niet in behandeling genomen. We kijken ernaar uit je te ontmoeten!</div></div></div><div><div><h2 class="jobSectionHeader">
Jouw Toekomst: Inclusief, Innovatief en Duurzaam</h2></div><div>
Bij ABN AMRO geloven we in &quot;Banking for better, for generations to come.&quot; Gelijke kansen voor iedereen vormen een belangrijk fundament, waarbij we streven naar een inclusieve cultuur waarin alle medewerkers zich gezien, gehoord en gewaardeerd voelen. Onze visie als persoonlijke bank in de digitale tijd sluit naadloos aan bij de behoefte aan verrassende inzichten en innovatieve oplossingen, voortkomend uit een divers samenspel van culturen en ervaringen. We richten ons op klantbeleving, duurzaamheid en bouwen aan een toekomstbestendige bank, waarbij we gelijke beloning voor gelijk werk jaarlijks onderzoeken om eerlijke kansen te waarborgen. Sluit je aan bij een bank die vindingrijkheid en ambitie omarmt, en maak samen met ons impact voor een betere toekomst. 
 
Als je wilt solliciteren voor het B-Able of Reboot programma, zorg er dan voor dat je dit vermeldt zowel in de titel als in de inhoud van je cv.</div></div><div><div><h2 class="jobSectionHeader">
Disclaimer externe recruitmentbureaus</h2></div><div>
Externe recruitmentbureaus dienen een overeenkomst met ABN AMRO BANK N.V. te hebben getekend, uitgegeven door een Talent Acquisition Specialist, om cv's te mogen indienen. Acquisitie wordt daarom niet op prijs gesteld.</div></div></div></div>

Data Scientist Transaction Banking (Amsterdam)

Solid Professionals

<div>
 
 
 Introduction
 
 
 
 As a GenAI Data Scientist, you will develop and implement AI solutions that help organizations improve decision-making, operational efficiency, and risk management. You will work in complex corporate environments where business, data, and technology come together to solve challenging problems. In this role, the focus is on creating Generative AI solutions that deliver measurable business value within highly regulated environments.
 
 
 
 
 
 
 Your role
 
 
 
 As a GenAI Data Scientist, you will be responsible for designing, developing, and implementing Generative AI solutions that support complex business processes. You will translate business challenges into practical AI applications and contribute throughout the entire lifecycle, from identifying opportunities and preparing data to building, testing, and deploying solutions into production.
 
 
 
 
 
 You will work extensively with unstructured data and Large Language Models (LLMs). This involves evaluating different models, architectures, and implementation approaches to determine the most suitable solution for a given use case. Topics such as Retrieval Augmented Generation (RAG), Natural Language Processing (NLP), agentic workflows, and AI evaluation frameworks will be central to your work.
 
 
 
 
 
 Within multidisciplinary teams, you will collaborate closely with business stakeholders, data professionals, and IT specialists. Depending on your experience level, you may focus on developing specific AI solutions or take a leading role in shaping architecture decisions, best practices, and the broader AI roadmap. The emphasis is on building solutions that move beyond experimentation and deliver real impact in production environments.
 
 
 
 
 
 
 What we are looking for
 
 
 <ul>
 <li>
 A completed Master's degree or PhD in Computer Science, Data Science, Artificial Intelligence, or a related field
 </li>
 <li>
 At least 3 years of relevant experience as a Data Scientist
 </li>
 <li>
 Strong experience with Python and the development of machine learning and AI solutions
 </li>
 <li>
 Experience with Generative AI, Large Language Models (LLMs), and GenAI use cases
 </li>
 <li>
 Knowledge of frameworks and concepts such as RAG, NLP, LangChain, DSPy, agents, or similar technologies
 </li>
 <li>
 Experience working with and transforming unstructured data
 </li>
 <li>
 Experience with cloud platforms, preferably Azure
 </li>
 <li>
 Knowledge of Git, data engineering concepts, and IT architecture
 </li>
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 Experience working in Agile environments and multidisciplinary teams
 </li>
 <li>
 Experience within financial services, FEC, KYC, CDD, or AML
 </li>
 <li>
 Strong English communication skills
 </li>
 </ul>
 
 
 
 
 
 Benefits
 
 
 
 Through Solid Professionals, you will work on one substantive assignment with one client at a time. You will be employed by us for the duration of that assignment. This provides focus and clarity, with a single assignment and an employment contract aligned to the duration of the engagement.
 
 
 
 
 
 
 What you can expect
 
 
 <ul>
 <li>
 A competitive salary aligned with your experience
 </li>
 <li>
 Challenging assignments within complex financial environments
 </li>
 <li>
 Opportunities for professional growth and specialization
 </li>
 <li>
 About Solid Professionals
 </li>
 </ul>
 
 
 
 
 Solid Professionals connects finance, risk, data, and IT professionals with organizations where quality and expertise are central. We combine strong assignments with personal guidance and actively support you in taking the next step in your career.
 
</div>

Data Scientist GenAI

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