senior software engineer

McKinsey & Company

<div><div><div><div><div><div><div>Job ID: 110124</div></div></div></div><div></div><div><ul><div>
Amsterdam</div></ul></div><div></div><div><div><div><br>
</div></div></div></div><div><p>
Do you want to do work that matters, alongside supportive leaders who will help you grow faster than you ever thought possible? Are you a creative problem-solver who is energized by challenges? You&rsquo;ve come to the right place.</p><div><p>
YOUR IMPACT</p><div><div><p>
You will lead architecture design, drive technology decisions, and co-create innovative products while mentoring clients to adopt Agile practices and engineering excellence. Your work offers hands-on collaboration, diverse industry exposure, and opportunities to shape solutions and grow as a technology leader.</p><p></p><p>
You will lead project workstreams, drive architectural decisions, and build scalable solutions using Agile methodologies. Working closely with client teams, you will co-create products, foster a culture of engineering excellence, and mentor teams in best practices. Your responsibilities will include shaping technical strategies, making key technology decisions, and ensuring the delivery of impactful, user-centric solutions.</p><p></p><p>
Your work will have a lasting impact beyond the products you build. By collaborating with client leadership, you will influence their digital strategies, help scale their engineering cultures, and enable them to achieve sustainable growth. Each project will expose you to diverse industries and technologies, providing opportunities to learn and grow while shaping the future of technology.</p><p></p><p>
You will design and deliver next-generation products that transform businesses across industries. Based in one of our global locations, you will be part of QuantumBlack, AI by McKinsey, a multidisciplinary group of software engineers, AI engineers, data scientists, and technology consultant passionate about creating industry-shaping products and tools.</p><p></p><p>
Your role offers unparalleled opportunities for growth and innovation. You&rsquo;ll have a seat at the table with client leaders, the chance to shape product strategies, and the freedom to explore areas of personal interest. Supported by a collaborative and innovative team, you&rsquo;ll make a lasting impact on clients, industries, and the future of technology.</p></div></div></div><div><p>
YOUR GROWTH</p><div><p>
Driving lasting impact and building long-term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture - doing hard things, picking yourself up when you stumble, and having the resilience to try another way forward.</p><p></p><p>
In return for your drive, determination, and curiosity, we'll provide the resources, mentorship, and opportunities you need to become a stronger leader faster than you ever thought possible. Your colleagues&mdash;at all levels&mdash;will invest deeply in your development, just as much as they invest in delivering exceptional results for clients. Every day, you'll receive apprenticeship, coaching, and exposure that will accelerate your growth in ways you won&rsquo;t find anywhere else.</p><p></p><p>
When you join us, you will have:</p><p></p><div><ul><li>
Continuous learning: Our learning and apprenticeship culture, backed by structured programs, is all about helping you grow while creating an environment where feedback is clear, actionable, and focused on your development. The real magic happens when you take the input from others to heart and embrace the fast-paced learning experience, owning your journey.</li><li>
A voice that matters: From day one, we value your ideas and contributions. You&rsquo;ll make a tangible impact by offering innovative ideas and practical solutions, all while upholding our unwavering commitment to ethics and integrity. We not only encourage diverse perspectives, but they are critical in driving us toward the best possible outcomes.</li><li>
Global community: With colleagues across 65+ countries and over 100 different nationalities, our firm&rsquo;s diversity fuels creativity and helps us come up with the best solutions for our clients. Plus, you&rsquo;ll have the opportunity to learn from exceptional colleagues with diverse backgrounds and experiences.</li><li>
World-class benefits: On top of a competitive salary (based on your location, experience, and skills), we provide a comprehensive benefits package to enable holistic well-being for you and your family.</li></ul></div></div></div></div></div><div><div><div><p>
YOUR QUALIFICATIONS AND SKILLS</p><div><div><ul><p>
Bachelors, Master&rsquo;s or PhD level degree in a discipline such as: computer science, machine learning, applied statistics, mathematics, engineering or artificial intelligence</p><p>
7+ years of experience in software development, with significant full-stack web application development experience strongly preferred</p><p>
Experience working collaboratively with technical and non-technical team members and stakeholders</p><p>
Hands-on experience and willingness to learn across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, ETL)</p><p>
Experience with LLM frameworks, prompt orchestration, agent frameworks, MCPs, evaluation frameworks, and cloud platforms (Azure, AWS, GCP), including Docker and CI/CD</p><p>
Strong focus on automated testing, logging, monitoring, and overall system reliability</p><p>
Experience modeling and coaching others to use engineering best practices such as design patterns, customer-centric design, test-driven development, code refactoring, code review, and OWASP Top 10 security awareness</p><p>
Experience leading in Agile teams, including coaching and modeling Agile mindsets as part of sprint ceremonies, work definition and building developer capabilities</p><p>
Exceptional time management to meet your responsibilities in a complex and largely autonomous work environment</p><p>
Strong communication skills, both verbal and written, in English and local office language(s), with the ability to adjust your style to suit different perspectives and seniority levels</p></ul></div></div></div></div></div><div><div><div><div>
Please review the additional requirements regarding essential job functions of McKinsey colleagues.</div>
<div>Our unwavering commitment to integrity drives everything we do, guiding us to always act in the best interests of our clients, our people, and the communities we serve.</div></div></div></div></div>

Senior Software Engineer - QuantumBlack, AI by McKinsey

Picnic Technologies

<div>
 In a nutshell
 <br/>
 <br/>
 As a Machine Learning Engineer at Picnic, you will design and deploy intelligent systems to solve our company&rsquo;s biggest challenges. Beyond building models, you will productionize them with strong monitoring and seamless integration into operational systems. You will collaborate closely with stakeholders to ensure the right problems are solved and that solutions deliver real-world impact.
 <br/>
 <br/>
 All using high quality data. Our data is registered, logged, and consistent, enabling you to focus on building and improving models rather than cleaning data. This role combines the skills of a consultant, software engineer, and applied mathematician.
 <br/>
 <br/>
 Tricks of the trade
 <br/>
 <br/>
 You will definitely:
 <br/>
 <br/>
 <ul>
  <li>
   Identify and execute improvement possibilities together with other ML Engineers and (product) analysts
  </li>
  <li>
   Collaborate on your project from inception to production, to continuous improvement
  </li>
  <li>
   Develop tools and enhancements for our cloud-based Machine Learning platform
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 You could work on various projects and fields, such as:
 <br/>
 <br/>
 <ul>
  <li>
   Demand forecasting: delivery, article, trip volumes, used Picnic-wide
  </li>
  <li>
   Fraud detection: helping us keep troublemakers out of our store
  </li>
  <li>
   Recommendation systems: generating useful in-app grocery suggestions
  </li>
  <li>
   Search and ranking: helping our customers find exactly what they need
  </li>
  <li>
   Predicting delivery drop-off times: making sure we&rsquo;re on-time at every customer&rsquo;s door
  </li>
  <li>
   Vision: ensuring quality control and smooth operations within our warehouses
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 Check out some of our previous machine learning projects here:  https://blog.picnic.nl/tagged/machine-learning
 <br/>
 <br/>
 We&rsquo;re looking for
 <br/>
 <br/>
 <ul>
  <li>
   Master&rsquo;s degree or higher in AI, Computer Science, Mathematics, or a related field
  </li>
  <li>
   5+ years of experience in data science or applied machine learning
  </li>
  <li>
   Excellent communication skills, you can clearly explain complex ideas in non-technical terms and enjoy working closely with business stakeholders to solve problems together
  </li>
  <li>
   Experienced in designing, deploying, and maintaining production ML systems, with solid software engineering and ML principles
  </li>
  <li>
   Strong Python and SQL skills
  </li>
  <li>
   Able to define the long-term vision and technical architecture for ML solutions within your domain
  </li>
  <li>
   Experience with Docker, Kubernetes, and CI is a plus
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 Picnic Perks
 <br/>
 <br/>
 <strong>
  🫱🏼&zwj;🫲🏾 Teamwork makes the dream work
  <br/>
  <br/>
 </strong>
 With more than 80 nationalities across 3 countries, you&rsquo;ll be part of a diverse company with plenty of cool stuff to get involved with, from board game evenings to after-work drinks to our company ski trip and more!
 <br/>
 <br/>
 <strong>
  💡 Make a difference
  <br/>
  <br/>
 </strong>
 You&rsquo;ll work in an awesome startup environment with the freedom to drive your own projects and create a visible impact. Our fully electric vehicles and sustainable business model mean you&rsquo;ll also be contributing to making the world a better place!
 <br/>
 <br/>
 <strong>
  🥗 Fresh Lunch, coffee, and snacks
  <br/>
  <br/>
 </strong>
 Our offices are equipped with fully-fledged coffee bars and a kitchen and chefs. They prepare delicious fresh and warm lunches every day so you can keep your energy up.
 <br/>
 <br/>
 <strong>
  🚲 Health insurance discount &amp; bike plan
  <br/>
  <br/>
 </strong>
 We have a partnership with CZ (a health insurance provider). Picnic employees get a discount on CZ insurance packages between 5% and 15%. Furthermore, through our partnership with Lease a Bike, you can rent-to-own a new (e)bike at a discounted rate
 <br/>
 <br/>
 <strong>
  🌎 Relocation
  <br/>
  <br/>
 </strong>
 If you&rsquo;re moving from another country to join Picnic we make it as smooth as possible for you. We&rsquo;ll cover your flight costs for you and your partner and kids, your first month's rent and moving costs (up to &euro;2000), and help you with the 30% tax ruling setup and application.
 <br/>
 <br/>
 <strong>
  📆 All the rest
  <br/>
  <br/>
 </strong>
 At Picnic you get 25 holidays, we cover your travel expenses and offer a pension plan. And your phone and laptop are on us, as well.
</div>


Senior Machine Learning Engineer

Adyen

<div>
 <strong>
  This is Adyen
  <br/>
  <br/>
 </strong>
 Adyen provides payments, data, and financial products in a single solution for customers like Facebook, Uber, H&amp;M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition.
 <br/>
 <br/>
 For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. The people of Adyen are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster.
 <br/>
 <br/>
 <strong>
  Unified Platform
  <br/>
  <br/>
 </strong>
 The Unified Platform Is At The Heart Of Adyen&rsquo;s Infrastructure, Bringing Together Accounting, Reporting, Billing, Pricing, Reconciliation, And Configuration Into One Streamlined Experience. It Enables Us To Stay Agile And Innovative While Running a Scalable, Efficient Business. As Part Of This Initiative, We&rsquo;re Rethinking Five Core Product Areas
 <br/>
 <br/>
 <ul>
  <li>
   Platform experience &ndash; Creating a unified and intuitive backend experience across Adyen products
  </li>
  <li>
   Accounting systems &ndash; Defining a cohesive and high-performing financial architecture
  </li>
  <li>
   Reporting &amp; reconciliation &ndash; Making financial data more accurate, accessible, and satisfying for customers and regulators
  </li>
  <li>
   Billing &amp; pricing infrastructure &ndash; Simplifying pricing and automating invoicing at scale
  </li>
  <li>
   Observability &amp; tooling &ndash; Strengthening visibility and control of money movement through advanced tooling
   <br/>
   <br/>
  </li>
 </ul>
 We&rsquo;re hiring Software Engineers at both Mid and Senior levels, and have several teams actively looking for new colleagues. While all roles share a strong technical foundation, each team brings a unique focus in scaling our unified platform, We'll explore the best team fit together throughout the interview process.
 <br/>
 <br/>
 <strong>
  What You&rsquo;ll Do
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Work on complex technical projects from requirements analysis through design, implementation, testing and launch into production.
  </li>
  <li>
   Be hands-on and contribute to the implementation.
  </li>
  <li>
   Identify and improve parts of the platform to make it more robust and scalable.
  </li>
  <li>
   Bring your own point of view on best engineering practices.
  </li>
  <li>
   Your code will be used at scale and you are expected to think in that mindset when building features.
  </li>
  <li>
   We launch fast and iterate often. Concretely, this means that within your first few weeks, you will bring live functionalities that impact many merchants and shoppers.
  </li>
  <li>
   Build APIs and tooling according to quality principles such as performance and code quality.
  </li>
  <li>
   Collaborate across teams and time zones to get projects over the finish line.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Who You Are
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Familiar with complex large scale distributed systems.
  </li>
  <li>
   You have experience with Java, Web Services, REST Apis, Webhooks and SQL/PostgreSql.
  </li>
  <li>
   You have a good understanding of Software Engineering practices and interest in product knowledge.
  </li>
  <li>
   You enjoy working in a cross-functional team with roles like Data Science, Frontend, and Product.
  </li>
  <li>
   You value involving other people to hear different perspectives.
  </li>
  <li>
   You have an experimental mindset with a launch fast and iterate mentality.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Minimum Qualifications
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   5+ years of experience in software development industry in a fast paced tech environment
  </li>
  <li>
   Full professional proficiency in English
  </li>
  <li>
   This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Our Diversity, Equity and Inclusion commitments
  <br/>
  <br/>
 </strong>
 Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you&rsquo;re from, we welcome you to be your true self at Adyen.
 <br/>
 <br/>
 Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply. We look forward to your application.
 <br/>
 <br/>
 <strong>
  What&rsquo;s next?
  <br/>
  <br/>
 </strong>
 Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here. Don&rsquo;t be afraid to let us know if you need more flexibility.
</div>


Software Engineer (Java) - Unified Platform

Just Eat Takeaway.com

<div>
 <strong>
  <strong>
   Ready for a challenge?
   <br/>
   <br/>
  </strong>
 </strong>
 Then Just Eat Takeaway.com might be the place for you. We&rsquo;re a leading global online delivery platform, and our vision is to empower everyday convenience.
 <br/>
 <br/>
 Whether it&rsquo;s a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe.
 <br/>
 <br/>
 <strong>
  About This Role
  <br/>
  <br/>
 </strong>
 We are looking for a Senior Data Engineer to join the Batch team within the Global Intelligence Platforms organisation, where you will play a central role in building and evolving Mobius - our internal unified analytics and data platform that powers data workloads at scale across Just Eat Takeaway.
 <br/>
 <br/>
 Mobius is a Kubernetes-native, declarative data platform that abstracts away infrastructure complexity so that data engineers across the business can provision and manage batch and streaming pipelines through a simple, expressive API. As part of the Batch team, you will own the components that make this a reality for batch processing.
 <br/>
 <br/>
 We're looking for someone who can live our behaviours of lead, deliver and care, bring fresh ideas, challenge the status quo, and push for bold, creative solutions to drive the Just Eat Takeaway vision forward.
 <br/>
 <br/>
 <strong>
  <em>
   Location: Hybrid - 3 days a week from our Amsterdam office &amp; 2 days working from home
   <br/>
   <br/>
   Reporting to: Senior Team Leader - Data Engineering
   <br/>
   <br/>
  </em>
 </strong>
 <strong>
  <strong>
   These are some of the key components to the position:
   <br/>
   <br/>
  </strong>
 </strong>
 <ul>
  <li>
   Design, build, and continuously improve batch and data processing pipelines on the Mobius platform, holding yourself and the team to a high standard of reliability and maintainability.
  </li>
  <li>
   Contribute to the evolution of Mobius platform capabilities, helping shape architecture decisions that scale with the organisation's growing data needs.
  </li>
  <li>
   Partner closely with internal teams to understand their data requirements, translating them into well-engineered, production-ready solutions.
  </li>
  <li>
   Champion data quality and governance by defining and maintaining data contracts, metadata, and lineage across the pipelines you own.
  </li>
  <li>
   Set up and own observability for data workloads - monitoring, alerting, and logging - and lead incident response when things don't go to plan.
  </li>
  <li>
   Participate actively in code reviews, raising the bar for engineering standards and sharing knowledge generously across the team.
  </li>
  <li>
   Collaborate across Global Intelligence Platforms org and with external teams to ensure Mobius delivers real, measurable value to the business.
  </li>
  <li>
   Identify and drive improvements to tooling, processes, and developer experience, making it easier for teams to build on top of Mobius with confidence.
  </li>
  <li>
   Contribute to team planning and prioritisation, helping to break down complex problems into clear, achievable goals that keep the team moving forward.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  <strong>
   What will you bring to the team?
   <br/>
   <br/>
  </strong>
 </strong>
 <ul>
  <li>
   Strong coding skills (Python/Java/Scala), with a track record of building and maintaining reliable, production-grade data pipelines at scale.
  </li>
  <li>
   Confident working with Kubernetes-native platforms to deploy and operate data workloads across cloud environments. Knowledge of Golang is a strong advantage.
  </li>
  <li>
   Hands-on experience with data transformation tools such as Spark and DBT, with a focus on building well-tested, maintainable data products.
  </li>
  <li>
   Familiarity with Apache Iceberg table format and schema management via catalogs such as AWS Glue, with an appreciation for data quality and consistency.
  </li>
  <li>
   Solid grounding in core AWS data and messaging services (S3, Glue ETL, DynamoDB, SNS, SQS, Redis) and how they fit together in modern data architectures.
  </li>
  <li>
   Proficiency in SQL and experience querying large-scale datasets with engines such as Athena to surface insights for internal and external partners.
  </li>
  <li>
   Experience orchestrating and scheduling data workflows, with an understanding of pipeline dependency management principles (e.g., Airflow).
  </li>
  <li>
   Comfortable establishing monitoring, logging, and alerting for data pipelines to drive operational excellence and fast incident response.
  </li>
  <li>
   An appreciation for data governance - including metadata management and data contracts - as a foundation for responsible, trustworthy data products.
  </li>
  <li>
   A collaborative, growth-oriented mindset: you build strong relationships across teams, stay committed to shared goals, and actively look for ways to raise the bar.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  <strong>
   At JET, this is how we play
   <br/>
   <br/>
  </strong>
 </strong>
 Our teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.
 <br/>
 <br/>
 Being the best at what we do isn&rsquo;t just about delivering on our strategy. It's a competition for something incredibly valuable &ndash; our customers' choice. Every time a customer decides where to order, they're picking a side.
 <br/>
 <br/>
 At the heart of the JET Customer League are our values and behaviours. They guide every interaction, every decision, every innovation. These are the actions we need to perform consistently and brilliantly, to surpass the competition and earn our customers&rsquo; loyalty, again and again.
 <br/>
 <br/>
 Fun, fast-paced and supportive, the JET culture is about movement, growth, helping one another to succeed and celebrating wins. By truly living our values and embodying our behaviours, we&rsquo;re building a customer-first culture which enables us to stay one step ahead of the competition.
 <br/>
 <br/>
 <strong>
  <strong>
   Inclusion, Diversity &amp; Belonging
   <br/>
   <br/>
  </strong>
 </strong>
 No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat Takeaway.com. We&rsquo;re committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.
 <br/>
 <br/>
 <strong>
  What else are we delivering?
  <br/>
  <br/>
 </strong>
 Want to know more about our JETers, culture or company? Have a look at our career site where you can find people's stories, blogs, podcasts and more JET journeys.
 <br/>
 <br/>
 <strong>
  <strong>
   Are you ready to join the team? Apply now!
   <br/>
   <br/>
  </strong>
 </strong>
</div>


Senior Data Engineer

Booking.com

<div>Role Description:
<p><b>
This role does not come with relocation assistance</b></p><p></p><p><b><br>
About Us: </b>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.</p><p></p><p><b><br>
Role and Team Overview</b></p><p>
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.</p><p></p><p><br>
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.</p><p></p><p><br>
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.</p><p></p><p><br>
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.</p><p></p><p><br>
To get a flavor of the Data Science &amp; ML work at Booking, check out our blog here.</p><p></p><p><b><br>
Key Job Responsibilities and Duties</b></p><ul><li><p>
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.</p></li><li><p>
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.</p></li><li><p>
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.</p></li><li><p>
Responsible for designing and interpreting quantitative experiments to objectively drive long-term strategic business decision making.</p></li><li><p>
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.</p></li><li><p>
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.</p></li><li><p>
Responsible for incorporating scalability, reproducibility and long term orientation in the work they do. Regularly sharing best practices with peers in their area.</p></li><li><p>
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.</p></li><li><p>
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.</p></li><li><p>
Must have a deep understanding of the larger data ecosystem at Booking and how it relates to the work they do.</p></li><li><p>
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.</p></li><li><p>
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).</p></li><li><p>
Responsible for ensuring quality of their own work by validating it through peer review.</p></li><li><p>
Responsible for influencing business decisions within their wider area (ie. track / vertical).</p></li><li><p>
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.</p></li></ul><p></p><p><b><br>
Role Qualifications and Requirements</b></p><ul><li><p>
Knowledgeable about statistical properties of (good) metrics, and ability to scalably test them</p></li><li><p>
Expertise in experimentation and knowledge of causal inference beyond A/B testing</p></li><li><p>
Expertise in SQL, Python and familiarity with other languages like R</p></li><li><p>
Experience building libraries/modules in python</p></li><li><p>
Familiarity with apis using is good, building/maintaining is great</p></li><li><p>
Strong understanding of fundamental machine learning concepts</p></li><li><p>
Strong knowledge of reporting/visualization techniques (e.g., Tableau, Graphite, Power BI, etc.)</p></li></ul><p></p><p><b><br>
Benefits &amp; Perks</b><b>: Global Impact, Personal Relevance</b></p><ul><li><p>
Annual paid time off and generous paid leave scheme including: parental (22-weeks paid leave), grandparent, bereavement, and care leave</p></li><li><p>
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)</p></li><li><p>
A beautiful sustainable HQ Campus in Amsterdam, that offers on-site meals, coffee, and snacks, multi-faith and breastfeeding rooms at the office</p></li><li><p>
Commuting allowance and bike reimbursement scheme</p></li><li><p>
Discounts &amp; Wallet credits to spend on our products, upgrade to Booking.com Genius Level 3, and friends &amp; family Booking.com discount vouchers</p></li><li><p>
Free access to online learning platforms, development and mentorship programs</p></li><li><p>
Global Employee Assistance Program, free Headspace membership</p></li></ul><p><b><br>
Inclusion at Booking.com:</b></p><p>
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.</p><p><b>
 </b>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;</p><p><b>
 </b>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.</p><p></p><p><b><br>
Application Process</b></p><ul><li><p>
The interview process will entail a call with one of our Recruiters and a total of 3 interviews, all conducted via Zoom video conferencing.</p></li><li><p><b>
This role does not come with relocation assistance.</b></p></li></ul><p><i><br>
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.</i></p></div>

Senior Data Scientist - Ranking and Ads Insights

<div><ul><li>REQ-10111850</li>
<li>30/06/2026</li>
<li>IT Engineering</li>
<li>Amsterdam, Netherlands</li>
<li>&euro;5.677 - &euro;9.137</li>
<li>ING Bank</li></ul><br>
<br>
<div> <p>Save for Later
</p></div><p></p><div><div><div><div><div><div>This position has been reopened. Original posting date: 21-04-2026</div>
<p>Are you passionate about software engineering and systems integration, and ready to take on a leadership role in the ever-evolving IT banking landscape? At ING we are in a dynamic and intensive journey to further digitalize the bank. As one of the IT Chapter Leads at Working Capital Solutions (WCS), you will play a pivotal role in modernizing our in house developed applications, our integration layer, and the services we provide. The WCS business is active globally and has a very solid market presence. We are directly contributing to making it even better.</p>
<p></p><p>This vacancy is based in Amsterdam. Daily work involves cross-team and cross-country collaborations. We are part of the ING&rsquo;s Wholesale Banking Tech Transaction Services organization.</p>
<p></p><p><b>The team</b></p>
<p>We are responsible for the design, modification and maintenance of the software solutions used to process receivables finance and supply chain finance deals. Our applications range from in-house developed channels, a modern integration layer, SaaS solutions and a couple of legacy applications. The integration layer is event-based and central to supporting digitalized customer journeys, enabling straight-through processing by connecting channels, backend services and other applications in our IT landscape.</p>
<p></p><p>You will lead a chapter of Dev engineers and DevOps engineers working across a couple of squads, as well as work as senior engineer. You and your chapter members must demonstrate the mature technical capabilities on the following areas:</p>
<ul><li>Back-end and API development using Java SpringBoot.</li>
<li>Develop event-based integration components using Java SpringBoot, Kafka, Apache Camel, and Json.</li>
<li>Front-end development in JavaScript and Lit-Element (web components).</li>
<li>Test automation with Junit, Karate/Cucumber, Gherkin and Gatling.</li>
<li>Overall automations for distributed systems running cloud-natively.</li>
<li>Data management skills for at-rest and in-transit data, including the underlying usage of data products.</li>
<li>Monitoring &amp; alerting using Grafana/Prometheus &amp; ELK.</li>
<li>CI/CD using Azure DevOps and backlog management on Azure Board.</li>
</ul><p></p><p><b>Roles and responsibilities</b></p>
<p>As IT Chapter Lead and Dev Engineer, you are a key player in the cooperation between engineers, customer journey experts, architects, business analysts and other stakeholders. Your main responsibilities in this position will involve:</p>
<ul><li>Lead and manage a team of full stack engineers, providing mentorship, guidance, and technical expertise as needed.</li>
<li>Design, implement, and maintain robust IT solutions with a primary emphasis on reliability and security.</li>
<li>Develop and execute strategic plans, ensuring that engineering projects are delivered on time and with minimal to no technical debt.</li>
<li>Review and evaluate technical designs, providing feedback and guidance to ensure that designs meet product requirements and industry standards.</li>
<li>Participate in code reviews and technical discussions to maintain high-quality code and ensure that code aligns with product goals and industry standards.</li>
<li>Continuously monitor and evaluate team performance, identifying opportunities for improvement and implementing corrective actions as needed.</li>
<li>Implement and safeguard all mandatory standards to ensure IT Risk is within the risk appetite of the bank.</li>
<li>Ensure that engineering processes and practices are aligned with industry best practices and that the team is following established procedures and protocols.</li>
<li>Actively participate in training plans and help all engineers in the area to level their technical skills together with the rest of the engineering managers.</li>
<li>Stay up-to-date with industry trends and emerging technologies, identifying opportunities for innovation and improvement within the engineering team.</li>
</ul><p></p><p><b>How to succeed</b></p>
<p>We hire smart people like you for your potential. Our biggest expectation is that you&rsquo;ll stay curious. Keep learning. Take on responsibility. In return, we&rsquo;ll back you to develop into an even more awesome version of yourself. The profile we are looking for must have:</p>
<ul><li>Bachelor's or Master's degree in Computer Science or in another engineering domain combined with strong IT background.</li>
<li>Minimum of 8 years of experience as software engineer, with at least 2 years of experience leading development teams/projects.</li>
<li>Strong technical background and expertise in software development methodologies, programming languages, and cloud-based infrastructure.</li>
<li>Experience with adopting software architecture design best practices, together with efficient usage of software verification &amp; validation techniques.</li>
<li>Ability to manage and motivate a team of Dev engineers and DevOps engineers.</li>
<li>Experience with agile methodologies and project management.</li>
<li>Proven track record of delivering high-quality software products on time.</li>
<li>Solid knowledge of databases, middleware and network technologies.</li>
<li>Excellent communication skills in English, being able to elaborate, write and present ideas clearly at different levels of abstraction.</li>
<li>Ability to challenge, influence and convince others through fact-based arguments.</li>
</ul><p></p><p><b>Rewards and benefits</b>
<br>
We want to make sure that it&rsquo;s possible for you to strike the right balance between your career and your private life. Find out more about our employment conditions.( opens in new window)</p><br>
<p><br>
The benefits of working with us at ING include:
</p><ul><li>25-28 vacation days depending on contract</li>
<li>Pension scheme</li>
<li>13th month salary</li>
<li>8% Holiday payment</li>
<li>Hybrid working</li>
<li>Personal growth and challenging work with endless possibilities</li>
<li>An informal working environment with innovative colleagues</li><br>
</ul><p><br>
<b>About us</b>
<br>
Curious about how ING empowers people and businesses to move forward?
</p><p>Discover what we do and what we can offer you( opens in new window).</p>
<p></p><p><b>Questions?</b>
<br>
Contact the recruiter attached to the advertisement. Want to apply directly? Please upload your CV and motivation letter .</p>
</div><p></p><div> <p>Save for Later</p></div></div><div><ul>
</ul></div></div><div><div>
<div><h3 class="jobSectionHeader"><b>Questions? Just ask
</b><br>
<b>Elias Noya</b></h3><div></div><div> <p>Save for Later
</p></div></div></div></div></div></div><div><div><div><p>ING&rsquo;s vision is to unlock our people&rsquo;s full potential through our inclusive culture where everyone has the opportunity to develop and have impact for our customers and society. To achieve this vision, our policies support diversity, equity, and inclusion. As an equal opportunity employer, we do not tolerate discrimination of any kind with regard to age, gender, gender identity, cultural background, experience, religion, race, ethnicity, disability, family responsibilities, sexual orientation, social origin, or any other status protected by applicable law. If you require any assistance or if we can accommodate you in any way when participating in our application and/or interview process, please email the recruiting contact listed for the relevant position. We will be happy to work with you to ensure a fair and accessible process. Read more about our commitment to diversity, inclusion and belonging here.</p></div></div></div></div>

Chapter Lead

Hi Tech-IT

<div>
 <p>
  <strong>
   DevOps Engineer
  </strong>
 </p>
 <p>
  Bouw mee aan innovatieve IT-oplossingen
 </p>
 <p>
  Ben jij een DevOps Engineer die graag software ontwikkelt &eacute;n infrastructuur automatiseert? Werk je graag met moderne technologie&euml;n en wil je een belangrijke rol spelen in het ontwikkelen van schaalbare en betrouwbare oplossingen? Dan is dit een functie waarin je veel technische uitdaging en vrijheid vindt.
 </p>
 <p>
  Wat ga je doen?
 </p>
 <p>
  Als DevOps Engineer werk je binnen een multidisciplinair team aan de ontwikkeling en verbetering van software die wordt ingezet binnen complexe IT-omgevingen. Je bent betrokken bij het volledige ontwikkelproces: van ontwerp en implementatie tot automatisering en optimalisatie.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Je werkzaamheden bestaan onder andere uit:
 </p>
 <ul>
  <li>
   Ontwikkelen van backend applicaties en API's.
  </li>
  <li>
   Bouwen en verbeteren van CI/CD pipelines.
  </li>
  <li>
   Automatiseren van deployment- en beheerprocessen.
  </li>
  <li>
   Werken met containers en cloud-native technologie&euml;n.
  </li>
  <li>
   Integreren van verschillende systemen en platformen.
  </li>
  <li>
   Optimaliseren van prestaties, stabiliteit en schaalbaarheid.
  </li>
  <li>
   Samenwerken met softwareontwikkelaars, cloud engineers en infrastructuurspecialisten.
  </li>
  <li>
   Actief meedenken over technische verbeteringen en nieuwe oplossingen.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  Wat neem je mee?
 </p>
 <ul>
  <li>
   HBO- of WO-werk- en denkniveau.
  </li>
  <li>
   Ervaring met softwareontwikkeling, bij voorkeur in Python, Go of Java.
  </li>
  <li>
   Ervaring met Git en CI/CD tooling.
  </li>
  <li>
   Goede kennis van Linux.
  </li>
  <li>
   Ervaring met Docker en Kubernetes.
  </li>
  <li>
   Kennis van Infrastructure as Code, zoals Terraform of Ansible, is een pr&eacute;.
  </li>
  <li>
   Je bent analytisch, zelfstandig en houdt van technische uitdagingen.
  </li>
  <li>
   Goede beheersing van de Nederlandse taal.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  Wat krijg je ervoor terug?
 </p>
 <ul>
  <li>
   Een uitstekend salaris afhankelijk van jouw kennis en ervaring.
  </li>
  <li>
   Leaseauto of mobiliteitsbudget.
  </li>
  <li>
   Hybride werken met veel flexibiliteit.
  </li>
  <li>
   Laptop en telefoon van de zaak.
  </li>
  <li>
   Uitstekende pensioenregeling.
  </li>
  <li>
   Opleidingsbudget en volop certificeringsmogelijkheden.
  </li>
  <li>
   Werken met de nieuwste technologie&euml;n binnen uitdagende projecten.
  </li>
  <li>
   Veel ruimte voor eigen initiatief en persoonlijke ontwikkeling.
  </li>
  <li>
   Een informele organisatie met korte lijnen en een collegiale werksfeer.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  Waarom deze functie?
 </p>
 <p>
  Je komt terecht in een technisch gedreven organisatie waar innovatie, automatisering en kwaliteit centraal staan. Je krijgt veel verantwoordelijkheid, werkt met moderne tooling en hebt alle ruimte om jezelf verder te ontwikkelen als DevOps Engineer.
 </p>
 <p>
  Interesse? Neem contact op voor meer informatie of solliciteer direct.
 </p>
</div>


DevOps Engineer

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