full stack engineer

senior data engineer

data engineer

data scientist

machine learning engineer

deep learning engineer

autarc GmbH

<div><h4 class="jobSectionHeader"><b>Company</b></h4><p>
Founded in Berlin, autarc is a ~40 person start-up who were part of Y Combinator&rsquo;s S24 batch in San Francisco. Our team consists of people in Sales, Tech and Operations, with the Engineering &amp; Product department currently ~20 people, as we continue to grow throughout the year.</p><h4 class="jobSectionHeader"><b><br>
Role description</b></h4><p>
We're looking for a Product Manager to work in one of our key product teams in building the leading OS for Europe's heat pump and solar workforce.</p><div><br>
You'll work alongside a team that consists of a Machine Learning Engineer, Software Engineers and an iOS Engineer, helping shape and maintain our product roadmap, run planning sessions and sprint preps with team leads, manage tickets in Linear and open Cursor to ship stuff yourself.</div><div></div><div><br>
We're always looking to build the next generation product and with a clear vision to become the agentic OS for the workforce behind the energy transition, that includes leveraging LLMs and NLP in building an AI voice agent to increase efficiencies.</div><br>
Other responsibilities will be as follows:<br>
<ul><li>
Support leadership in shaping and prioritising the product roadmap</li><li>
Run product discovery alongside our teams through direct customer engagement</li><li>
Manage product operations in Linear: triage, prioritisation, sprint hygiene</li><li>
Build and ship features or prototypes directly using AI-assisted development tools (Lovable, Figma, Cursor, Copilot)</li><li>
Facilitate planning sessions with product teams and sprint preps with engineering leads</li><li>
Represent autarc in customer calls, sales meetings, and training sessions</li><li>
Work alongside our Engineers in building and shipping material</li></ul>
This is a Product Manager position but as the landscape of the industry shifts, we also expect you to build and tangibly contribute on a day-to-day basis.<p></p><h4 class="jobSectionHeader"><b>
Requirements</b></h4><p></p><ul><li>
2-5+ years of experience as a Product Manager</li><li>
Exposure to working in B2B SaaS</li><li>
AI-native in working with tools to help you run faster and jump higher</li><li>
Experience having worked in an AI-first team/company</li><li>
Track record in conducting user interviews and product discovery</li><li>
A desired obsession to go deep AI, Machine Learning and Computer Vision</li><li>
Berlin-based and willing to work hybrid</li><li>
Native German speaking</li></ul><p></p><h4 class="jobSectionHeader"><b>
What we offer</b></h4><p></p><ul><li>
Freedom to choose your own equipment (within a budget)</li><li>
26 paid vacation days</li><li>
An annual team retreat</li><li>
The choice between Dance or JobRad for mobility</li><li>
The choice between Classpass or Urban Sports Club for fitness</li><li>
Regular team events, lunches and activities</li></ul><p></p><h4 class="jobSectionHeader"><b><br>
Next steps</b></h4><p>
If your application is successful, you will participate in the following:</p><br>
<ul><li>
Screening call with Louis (Recruiter)</li><li>
Culture fit call with an Engineer</li><li>
Take home case study/exercise</li><li>
Final on-site interview with Etienne (CEO) and the team</li></ul><p></p><h4 class="jobSectionHeader"><b>
About us</b></h4><p>
Right now, 25% of CO2 emissions in Europe are caused by heating our buildings. In order for this to be reduced, the transition towards renewable energy needs to be simplified and made more accessible. There are too few installers to meet the growing demand for heat pumps, and a solution to match this trend needs to be brought to the market.<br>
autarc is developing the leading operating system (OS) for heat pump installers, enabling a more digital and efficient installation process for heat pumps.<br>
Through this, autarc is reducing the hurdles to decarbonizing single-family homes and small apartment buildings in Europe, with the goal to help with the planning and designing of 1 million heat pumps by 2030.</p></div>

Product Manager (AI)

Sonova

<div></div><div><div><div><p>Who we are</p><p>
At Sonova, we envision a world where everyone can enjoy the delight of hearing. This vision inspires us and fuels our commitment to developing innovative solutions that improve hearing health and human connection - from personal audio devices and wireless communication systems to hearing aids and cochlear implants. We're dedicated to providing outstanding customer experiences through our global audiological care services, ensuring that everyone has the opportunity to engage fully with the world around them.</p>
<p>Guided by a culture of continuous improvement that fosters resilience and self-motivation, our team is united by a shared commitment to excellence and a deep sense of pride in our work, each of us playing a vital role in creating meaningful change,</p>
<p>Here you&rsquo;ll find a diverse range of opportunities that span both consumer and medical solutions and the freedom to shape your career while making an impact on the lives of others. Join us in our mission to create a more connected world, where every voice is heard and every story matters.</p>
</div></div><div><div><div><div>Berlin, Germany
</div></div></div></div><div><div><div><div><p>Senior Staff Engineer - Digital Marketing (m/f/d)
</p></div></div></div></div><div><div><div><div><div>Berlin/Hybrid</div>
<div></div>
<div>As a Senior Staff Engineer, you&rsquo;ll be the go-to technical expert driving end-to-end solutions that power lead generation and customer acquisition across global markets.</div>
<div>This is a hands-on, high-impact IC role with strong technical leadership and mentoring.</div>
<div></div>
<div><b>Your responsibilities</b></div>
<div></div>
<ul><li><div>Design and implement scalable tech solutions end-to-end</div>
</li><li><div>Act as the bridge between Marketing and Engineering, translating ideas into real systems</div>
</li><li><div>Build and optimize customer acquisition platforms, tracking, attribution, and CRM integrations</div>
</li><li><div>Improve DevOps, automation, and infrastructure (GCP, Terraform, GitHub)</div>
</li><li><div>Support UI/UX improvements &amp; A/B testing</div>
</li><li><div>Mentor engineers and help the team move faster and work smarter</div>
</li><li><div>Balance multiple requests, challenge priorities, and drive pragmatic decisions</div>
</li>
</ul><div></div><div><b>Your Profile</b></div>
<div></div>
<ul><li><div>10+ years in Software Engineering (end-to-end systems) and proven tech leadership experience</div>
</li><li><div>Strong hands-on coding: JavaScript + Python</div>
</li><li><div>Solid experience with cloud (GCP/AWS) + Infrastructure as Code (Terraform)</div>
</li><li><div>Proven experience working at the intersection of Marketing &amp; Tech</div>
</li><li><div>Understanding of lead generation, tracking, attribution, and CRM integrations</div>
</li><li><div>Experience driving complex projects independently in fast-paced environments</div>
</li><li><div>Ability to simplify complexity and influence non-technical stakeholders</div>
</li>
</ul><div></div><div><b>Why join us</b></div>
<div></div>
<div>As one of the world&rsquo;s leading hearing care providers headquartered in Switzerland, we&rsquo;re committed to building an inclusive culture. We want to create an environment where you can balance a successful career with your commitments and interests outside of work, through our flexible hybrid working model.</div>
<div>We offer a wide range of opportunities for both your professional and personal development and growth.</div>
<div></div>
<ul><li><div>Own and shape a growing digital unit with real business impact</div>
</li><li><div>Opportunity to influence global expansion</div>
</li><li><div>30 days of paid annual leave</div>
</li><li><div>Subsidized VBB or Deutschland ticket</div>
</li><li><div>Dedicated learning &amp; development budget and weekly learning time + LinkedIn Learning license</div>
</li><li><div>Company Urban Sports Club membership</div>
</li><li><div>Mobility allowance for relocation if you are relocating to join our team #LI-NB1</div>
</li>
</ul></div></div></div></div><div></div><div><div><p>Sonova is an equal opportunity employer.</p><p>
We team up. We grow talent. We collaborate with people of diverse backgrounds to win with the best team in the market place. We guarantee every person equal treatment in regard to employment and opportunity for employment, regardless of a candidate&rsquo;s ethnic or national origin, religion, sexual orientation or marital status, gender, genetic identity, age, disability or any other legally protected status.</p>
</div></div><div><div><div><div>164317</div></div></div></div></div><p></p>

Senior Staff Engineer

Adsquare

<div>
 <br/>
 <p>
  <strong>
   About the Company
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  At Adsquare, our mission is driven by our core focus:
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   <strong>
    Passion
   </strong>
   &ndash; Solving complex challenges with great people, tech, and data.
  </li>
  <li>
   <strong>
    Niche
   </strong>
   &ndash; Location Intelligence for Programmatic Advertisers.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  Our core values are integral to everything we do:
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   <strong>
    Drive
   </strong>
   : We turn ambition into action to deliver valuable outcomes.
  </li>
  <li>
   <strong>
    Resilience
   </strong>
   : We adapt, persevere, and grow stronger.
  </li>
  <li>
   <strong>
    No BS
   </strong>
   : We value honesty, transparency, and clear communication.
  </li>
  <li>
   <strong>
    Humble
   </strong>
   : We choose modesty over vanity and let results speak for themselves.
  </li>
  <li>
   <strong>
    Moral Compass
   </strong>
   : We do the right thing with fairness, integrity, and respect.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We seek candidates who not only bring top-tier technical expertise but also embody these values in every aspect of their work.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   About the Role
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  As a (Senior) Data Engineer at Adsquare, you will be a key contributor to our core engineering function, creating and maintaining scalable big data pipelines that power our applications and drive business value. Because our engineering department handles a variety of critical data challenges, you will be assigned to a specific cross-functional squad based on your individual strengths, experience, and current business needs.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Responsibilities
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   <strong>
    Data Pipeline Ownership
   </strong>
   : Take full accountability for the pipeline lifecycle&mdash;from raw data ingestion to transformation and external delivery&mdash;according to defined SLAs, time, and budget.
  </li>
  <li>
   <strong>
    Architect Scalable Solutions
   </strong>
   : Design and build robust data architectures required to process and transfer terabytes of data.
  </li>
  <li>
   <strong>
    Pipeline Optimization
   </strong>
   : Continuously improve data pipelines for cost and performance. This includes analyzing query plans, optimizing compute and working memory, and strategically applying horizontal or vertical scaling.
  </li>
  <li>
   <strong>
    Engineering Rigor
   </strong>
   : Elevate data engineering standards. Implement CI/CD workflows, infrastructure-as-code, test-driven development (TDD), and automated testing to ensure reliable and maintainable code.
  </li>
  <li>
   <strong>
    Data Monitoring
   </strong>
   : Create and maintain live monitoring dashboards to ensure data solutions are healthy and to support strategic decision-making.
  </li>
  <li>
   <strong>
    Collaboration &amp; Mentorship
   </strong>
   : Bridge the gap between Data and Backend engineering. For Senior applicants, act as a technical leader by mentoring junior team members, conducting code reviews, and introducing best practices.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Qualifications
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are looking for a candidate with varying levels of experience (mid-level to senior, typically 3-6+ years) in Data Engineering or Backend Development with a heavy data focus. You must be comfortable working in a self-organized, agile environment.
 </p>
 <p>
  <br/>
 </p>
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  <br/>
 </p>
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  <strong>
   Required Skills
  </strong>
 </p>
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  <br/>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   <strong>
    Programming Mastery
   </strong>
   : Very strong proficiency in Python and SQL. You write modular, production-ready code and possess a solid understanding of both Functional Programming and Object-Oriented Programming (OOP) principles.
  </li>
  <li>
   <strong>
    Big Data &amp; PySpark
   </strong>
   : Deep experience with large-scale data processing frameworks, specifically Apache Spark / PySpark. You understand how to handle TB-scale datasets efficiently. Deep understanding of big data file formats like parquet and avro. Experience with open Lakehouse formats like Iceberg.
  </li>
  <li>
   <strong>
    Advanced Optimization Skills
   </strong>
   : Proven experience in optimizing data pipelines for compute, working memory, and cost efficiency, including reading and analyzing complex query plans/profiles.
  </li>
  <li>
   <strong>
    Database &amp; Storage Architecture
   </strong>
   : Expertise in the trade-offs between OLAP and OLTP systems. You have built solutions using relational and non-relational (NoSQL) databases, and horizontally scalable data warehouses/lakehouses (e.g., Redshift, Snowflake, StarRocks).
  </li>
  <li>
   <strong>
    Cloud Native (AWS)
   </strong>
   : Experience architecting solutions within the AWS ecosystem (e.g., S3, Athena, Glue, EMR, Lambda, Batch).
  </li>
  <li>
   <strong>
    Infrastructure &amp; Orchestration
   </strong>
   : Production experience treating infrastructure as software using Terraform, alongside experience with orchestration tools like Airflow, dbt, or Step Functions.
  </li>
  <li>
   <strong>
    Engineering Fundamentals
   </strong>
   : Solid grasp of computer science principles, data structures, algorithms, and git-flow/CI/CD pipelines.
  </li>
  <li>
   <strong>
    AI tools
   </strong>
   : Good command of using AI tools (e.g. Claude Code, Kiro, Gemini Pro) to improve and refactor your code, increase your productivity and quality and performance of your code.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Preferred Skills
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   <strong>
    Compiled Languages
   </strong>
   : Experience with a compiled or strongly typed language (e.g., Java, Scala, Go, Kotlin, C++, Cython).
  </li>
  <li>
   <strong>
    Geospatial Data
   </strong>
   : Experience working with GIS (Geographic Information Systems) and geo-spatial datasets.
  </li>
  <li>
   <strong>
    Data Formats
   </strong>
   : Expertise in optimizing file formats (Parquet, Avro, Iceberg) for performance.
  </li>
  <li>
   <strong>
    Streaming Technologies
   </strong>
   : Familiarity with Kafka and Flink.
  </li>
  <li>
   <strong>
    Backend Context
   </strong>
   : Experience working closely with Backend engineers or familiarity with Backend architectural patterns (microservices, API design).
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Pay range and compensation package
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  55,000 - 65,000 euros per year
 </p>
 <p>
  <br/>
 </p>
 <p>
  On top of a competitive package, we offer:
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Hybrid work model + remote work from anywhere worldwide up to 3 months/year
  </li>
  <li>
   Individual yearly learning budget of 1,200&euro;
  </li>
  <li>
   30 vacation days per year
  </li>
  <li>
   Urban Sports Club membership
  </li>
  <li>
   Company pension scheme
  </li>
  <li>
   Regular team and company events
  </li>
  <li>
   Latest hardware and all tools you need to thrive
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Equal Opportunity Statement
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are committed to diversity and inclusivity.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  Apply now!
 </p>
 <p>
  <br/>
 </p>
</div>


Data Engineer (m/f/d)

Cortea AI

<div><h2 class="jobSectionHeader"><b>About us</b></h2><p><b>
Cortea </b>is building the q<b>uality layer for AI-powered audits</b>.</p><p>
Our Audit Quality Agents help audit firms use AI with greater<b> trust, consistency, and professional oversight</b>. Built around auditing standards and review workflows, they enable firms to deliver more reliable and reviewable work while increasing capacity across the audit process.</p><p>
We're building an<b> AI-native company from day one</b>. We believe small teams, equipped with AI and empowered to move fast, can solve some of the biggest challenges facing the audit profession.</p><p></p><h2 class="jobSectionHeader"><b>
Your Role</b></h2><p>
As an <b>AI Product Manager</b>, you'll work on products in our AI audit toolbox alongside engineers, designers, auditors and our founders. You'll spend your time understanding what auditors need, helping shape what we build next, and making sure we ship things that actually solve real problems.</p><p></p><h2 class="jobSectionHeader"><b>
What you'll do</b></h2><ul><li><p>
Contribute to the <b>discovery, definition, and delivery</b> of products in our AI toolbox</p></li><li><p><b>
Talk to customers</b> weekly to uncover pain points and validate solutions</p></li><li><p><b>
Prototype with AI tools</b> (Cursor, Claude, v0, etc.) to test ideas in hours, instead of weeks</p></li><li><p>
Work tightly with engineering and design throughout the build cycle</p></li><li><p>
Help us <b>understand the messy reality of AI capabilities</b> (and limits) and turn that into product decisions: what's worth building, what's not yet ready, where humans stay in the loop</p></li><li><p>
Bring <b>structure to the problem space</b>: clear writing, sharp questions, useful PRDs</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
What success looks like</b></h2><ul><li><p>
You've contributed to and shipped 3+ meaningful product bets within your first 6 months, learning through iteration and customer feedback along the way.</p></li></ul><ul><li><p>
You've gone deep on at least one core product area (e.g. a specific tool in our AI toolbox, a customer segment, our evals &amp; quality framework, or the UX of agentic workflows) and become exceptionally strong in it</p></li><li><p>
You're trusted by founders, engineers, and customers to steward important product decisions</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
Who you are</b></h2><ul><li><p>
Have<b> 4&ndash;7 years of experience</b>, with at least 2 years in a product role</p></li><li><p>
Have <b>shipped B2B SaaS products </b>that real customers pay for and use</p></li><li><p>
Are <b>AI-native in how you work</b>: you use LLMs, agents, and AI tooling daily and have strong intuition for what they can and can't do today</p></li><li><p>
Have <b>shipped at least one AI-powered feature or product </b>and understand the unique product challenges (evals, latency, hallucinations, trust, UX of probabilistic systems)</p></li><li><p><b>
Go deep</b> into context to truly understand user problems</p></li><li><p>
Are<b> comfortable in early-stage startup chaos</b>. High autonomy, high ambiguity, high speed</p></li></ul><h3 class="jobSectionHeader"><b>
Bonus points</b></h3><ul><li><p>
You've founded a company or shipped a serious AI side project</p></li><li><p>
You can read code, run small scripts, or fine-tune prompts yourself</p></li><li><p>
Experience in audit, compliance, legal, or another document-heavy professional services domain</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
What We Offer</b></h2><ul><li><p><b>
High impact &amp; growth:</b> Front-row seat to a fast-scaling AI startup, with the chance to grow alongside the product</p></li><li><p><b>
Mission-driven culture:</b> First-principles thinking, bold ideas, and a supportive team</p></li><li><p><b>
Attractive compensation:</b> competitive salary + meaningful equity</p></li><li><p><b>
Personal development:</b> Learning budget for courses and conferences</p></li><li><p><b>
Dynamic environment:</b> Central Berlin office, team lunches, retreats, flexible vacation</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
Interview process</b></h2><ul><li><p><b>
First Call</b>: Intro to Cortea with our Founders Associate Liza</p></li><li><p><b>
Second Call</b>: Product deep-dive with our Co-Founder &amp; CPO Philipp</p></li><li><p><b>
Third Call</b>: Deep dive into our culture with our Co-Founder &amp; CEO Valentin</p></li><li><p><b>
On-site Day (Berlin)</b>: Meet the team and work on a real problem together</p></li></ul></div><div></div>

AI Product Manager (m/f/x)

<div><h1 class="jobSectionHeader"><b>About us</b></h1><p>
We&rsquo;re <b>Cortea</b>, a Berlin startup <b>transforming audits with AI</b>. Manual, document-heavy audits waste expert time while demand keeps rising. Our <b>AI-powered software and specialized AI agents</b> remove the repetitive work so auditors can focus on judgment.
</p><p>Backed by top-tier VCs with &gt;15m funding, with a working product and paying customers, we&rsquo;re rapidly scaling.</p><p>
We value <b>first-principles thinking, speed, trust, and kindness</b>. We build side by side <b>in our Berlin office</b>.</p><p></p><h2 class="jobSectionHeader"><b>
Your Role</b></h2><p>
We're looking for an <b>experienced engineer who's happy anywhere in the stack</b> and turns complex audit workflows into product auditors rely on every day. You pick up whatever a problem needs, from the data model to the interface to the agents behind it.</p><p>
A lot of what we build has no reference implementation. You're <b>comfortable wading into something nobody has solved yet</b> and shipping a first version that actually works.</p><p>
Our engineering team is a <b>small, flat group of builders</b>: strong ICs who open a laptop when they see a problem instead of scheduling a meeting. Everyone owns real product and architecture decisions, and that's exactly what we want more of.</p><p></p><h2 class="jobSectionHeader"><b>
What you'll do</b></h2><ul><li><p>
Build the interfaces auditors work in, partnering with design to turn complex flows into something that feels effortless</p></li><li><p>
Build and improve the agents at the core of the product, plus the harnesses and eval pipelines around them</p></li><li><p>
Make the long-running workflows behind the product reliable and debuggable, so failures surface fast instead of silently</p></li><li><p>
Use AI heavily in your own workflow to move faster, without ever shipping output you can't stand behind</p></li><li><p>
Drive the how in RFCs and technical discussions with other engineers, and partner with product on the what</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
Qualifications</b></h2><p>
You'll fit here if you:</p><ul><li><p>
Have 5+ years shipping production web applications across the stack</p></li><li><p>
Write production APIs and model the data behind them so it holds up under multi-tenancy and load</p></li><li><p>
Are strong on the frontend and can build genuinely complex UI</p></li><li><p>
Get how LLM agents actually work: agents, harnesses, tool use, and measuring quality with evals</p></li><li><p>
Keep up with where AI is moving and bring the latest tools into how you work to make yourself faster</p></li><li><p>
Bring a strong product mindset and real ownership of outcomes</p></li><li><p>
Make architectural decisions, weigh trade-offs, and build things other engineers can extend</p></li><li><p>
Are comfortable with ambiguity and work things out from fundamentals when there's no established answer</p></li></ul><p>
Nice-to-haves that are a plus:</p><ul><li><p>
Hands-on experience building agents, harnesses, or eval pipelines</p></li><li><p>
Data-dense or workflow-heavy B2B products</p></li><li><p>
Scaling multi-tenant systems as data and traffic grow</p></li><li><p>
Audit, finance, compliance, or another domain where being wrong is expensive</p></li><li><p>
Early-stage startup or fast-moving engineering environment</p></li></ul><p><b>
No one checks every box. If you ship across frontend, backend, and data and own what you build, let's talk.</b></p><p></p><h2 class="jobSectionHeader"><b>
Our tech</b></h2><ul><li><p>
React, TS, Tailwind, TanStack</p></li><li><p>
Python, Postgres, Temporal, Kafka, Redis</p></li><li><p>
GCP, Azure, k8s</p></li><li><p>
GitHub, Linear, Slack, Notion</p></li></ul><p></p><h1 class="jobSectionHeader"><b>
What We Offer</b></h1><ul><li><p><b>
High impact &amp; growth:</b> Front-row seat to scaling an AI startup with real ownership from day one</p></li><li><p><b>
Mission-driven culture:</b> First-principles thinking, bold ideas, and a supportive team</p></li><li><p><b>
Attractive compensation:</b> competitive salary + meaningful equity</p></li><li><p><b>
Personal development:</b> Learning budget for courses and conferences</p></li><li><p><b>
True Berlin startup environment:</b> Central Berlin office, team lunches, retreats, flexible vacation</p></li></ul><p></p><h1 class="jobSectionHeader"><b>
Interview process</b></h1><ul><li><p><b>
First Call</b> &mdash; Intro to Cortea with our Founders Associate Liza</p></li><li><p><b>
Second Call</b> &mdash; Technical interview with our Member of Technical Staff Jendrik</p></li><li><p><b>
Third Call</b> &mdash; Deep dive into our culture with our Co-Founder Philipp</p></li><li><p><b>
On-site Half-Day (Berlin) </b>&mdash; Meet the team and work on a real problem together</p></li></ul></div><div></div>

Senior/Staff Fullstack Engineer (m/f/x)

Xenon7

<div><p><b>About us:</b></p><p>
Where elite tech talent meets world-class opportunities!</p><p>
At Xenon7, we work with leading enterprises and innovative startups on exciting, cutting-edge projects that leverage the latest technologies across various domains of IT including Data, Web, Infrastructure, AI, and many others. Our expertise in IT solutions development and on-demand resources allows us to partner with clients on transformative initiatives, driving innovation and business growth. Whether it's empowering global organizations or collaborating with trailblazing startups, we are committed to delivering advanced, impactful solutions that meet today&rsquo;s most complex challenges.</p><p>
We are building a community of top-tier experts and we&rsquo;re opening the doors to an exclusive group of exceptional <b>AI &amp; ML Professionals </b>ready to solve real-world problems and shape the future of intelligent systems.</p><p></p><p><b>
Location:</b> Remote (Europe - CET)<br>
<b>Experience:</b> 5+ Years</p><p><b>
Project Duration:</b> ~ 2 months (B2B contract)<br>
<b>Availability:</b> Immediate Joiner</p><p></p><p><b>
Role Overview</b></p><p>
We are seeking a visionary and highly skilled <b>Senior Data Scientist</b> to lead the development of a cutting-edge document intelligence and discovery platform. This unique role sits at the intersection of advanced Generative AI, Machine Learning, and Cheminformatics. Your primary mission will be to solve a highly complex unstructured data challenge: transforming scanned PDF documents containing intricate chemical structures into highly searchable, interpretable, and actionable knowledge bases.</p><p></p><ul><li><b>
Architect Document Intelligence Solutions:</b> Design and implement advanced Machine Learning and Deep Learning models to parse, extract, and interpret text and complex chemical structures from unstructured, scanned PDF documents.</li><li><b>
Develop LLM &amp; Retrieval Systems:</b> Build and optimize Large Language Model (LLM) applications, leveraging vector databases to enable semantic search, advanced data interpretation, and retrieval-augmented generation (RAG).</li><li><b>
End-to-End ML Pipelines:</b> Own the entire machine learning lifecycle, including data preprocessing (specifically for chemical data and OCR outputs), model training, evaluation, deployment, and post-deployment monitoring.</li><li><b>
Bridge Chemistry &amp; AI:</b> Apply your chemistry domain knowledge to translate molecular structures, diagrams, and chemical data into machine-readable formats, embeddings, and actionable insights.</li><li><b>
Cloud Architecture &amp; Deployment:</b> Deploy scalable, secure, and production-ready AI/ML pipelines within the AWS ecosystem, ensuring high availability and performance.</li><li><b>
Cross-Functional Collaboration:</b> Partner closely with software engineers, data engineers, and domain experts to integrate ML models into the core product architecture and align with business goals.</li></ul><p></p><b><br>
Requirements</b><br>
<ul><li><b>
Professional Experience:</b> 5+ years of proven experience working as a Data Scientist, with a track record of delivering production-grade machine learning models.</li><li><b>
Domain Expertise:</b> A strong background in Chemistry, Cheminformatics, or a highly related scientific field, with a demonstrated ability to interpret and manipulate complex chemical structures and data types.</li><li><b>
Core Technical Stack:</b> Advanced proficiency in <b>Python</b> and deep hands-on experience with the <b>AWS cloud stack</b> (e.g., SageMaker, Lambda, S3, EC2).</li><li><b>
Generative AI &amp; Search:</b> Practical, hands-on experience working with LLMs (fine-tuning, prompt engineering, or API integration) and <b>vector databases</b> (e.g., Pinecone, Milvus, Weaviate, or Qdrant).</li><li><b>
ML/DL Mastery:</b> Robust experience in model development, validation, deployment, and evaluation framework tools (e.g., PyTorch, TensorFlow, Scikit-Learn).</li><li><b>
Document Processing (Plus):</b> Prior experience with Computer Vision, Optical Character Recognition (OCR), or Document AI systems is highly desirable given the scanned PDF focus.</li><li><b>
Soft Skills:</b> Strong analytical problem-solving skills, excellent communication, and the ability to thrive in a highly collaborative, cross-disciplinary project environment.</li></ul><br>
<b>
Benefits</b><p><br>
At Xenon7, we're not just building AI systems&mdash;we're building a community of talent with the mindset to lead, collaborate, and innovate together.</p><ul><li>
<b>Ecosystem of Opportunity:</b> You'll be part of a growing network where client engagements, thought leadership, research collaborations, and mentorship paths are interconnected. Whether you're building solutions or nurturing the next generation of talent, this is a place to scale your influence.</li><li>
<b>Collaborative Environment: </b>Our culture thrives on openness, continuous learning, and engineering excellence. You'll work alongside seasoned practitioners who value smart execution and shared growth.</li><li>
<b>Flexible &amp; Impact-Driven Work: </b>Whether you're contributing from a client project, innovation sprint, or open-source initiative, we focus on outcomes&mdash;not hours. Autonomy, ownership, and curiosity are encouraged here.</li><li>
<b>Talent-Led Innovation: </b>We believe communities are strongest when built around real practitioners. Our Innovation Community isn&rsquo;t just a knowledge-sharing forum&mdash;it&rsquo;s a launchpad for members to lead new projects, co-develop tools, and shape the direction of AI itself.</li></ul></div>

Senior Data Scientist - Europe

Axel Springer SE

<div><b>Company Description</b><p><br>
Join a team that builds and evolves the technical foundation for our premium subscription business across multiple brands. Together, we create scalable solutions for acquisition, checkout, payments, entitlements, and partner integrations, combining engineering excellence with business impact. As a Senior/Staff Engineer, you will help shape architecture, drive technical improvements, and contribute to systems that enable sustainable growth and exceptional user experiences.<br>
<br>
We believe in the future of journalism as a business model and invest in forward-looking technologies. Our five essentials are the values that unite us and our compass in our commitment to freedom.</p><b><br>
Job Description</b><br>
<ul><li>
own and evolve the technical foundation of our Authentication &amp; Profile domain across account creation, login, registration, single sign-on, profile data, and secure access to user information</li><li>
design, build, and operate scalable full-stack services that enable millions of users to access our brand products and premium content reliably across all channels</li><li>
shape the future of our identity platform by improving security, user experience, performance, and maintainability across authentication and profile-related services</li><li>
challenge existing systems and drive well-founded improvements that reduce complexity, increase reliability, strengthen data security, or unlock better product and business outcomes</li><li>
work closely with product, engineering, security, data, and business stakeholders to turn authentication, profile, and user data requirements into pragmatic technical solutions</li><li>
design and improve APIs, service architectures, frontend integrations, and data access patterns used by internal services across our multi-brand ecosystem</li><li>
build and operate cloud-native infrastructure on AWS with serverless architectures, CI/CD, observability, infrastructure automation, strong production ownership, and hands-on mentoring</li></ul><br>
<b>
Qualifications</b><br>
<ul><li>
10+ years of software engineering experience with strong expertise in full-stack development, distributed systems, and cloud-native architectures</li><li>
strong hands-on production experience with Java as a primary language, ideally combined with TypeScript and modern web technologies</li><li>
deep experience building and operating scalable applications on AWS, particularly with AWS Lambda, serverless architectures, CI/CD, observability, and infrastructure automation</li><li>
solid understanding of modern software architecture, APIs, distributed systems, security, resilience, and high-availability web applications</li><li>
experience with authentication, identity, single sign-on, user profiles, secure data access, privacy, or security-sensitive product domains</li><li>
strong ability to work across the stack, including backend services, frontend integrations, and the user-facing flows that connect them</li><li>
pragmatic, analytical mindset with strong English and German communication skills, confident AI tool usage, and curiosity for technologies such as Go or Rust where they add value</li></ul><br>
<b>
Additional Information</b><br>
<ul><li>
your personal growth is important to us: we offer trainings and learning lunches, tech conferences, a budget for workshops and much more to expand your knowledge and your skills</li><li>
Employee offers that suit you and your life situation: Whether it's a discounted public transport ticket or JobRad leasing, a bicycle garage (incl. regular bicycle service), childcare facilities or two modern in-house kindergartens</li><li>
30 days vacation plus 10 days work from abroad</li><li>
our free food offer: in addition to a breakfast snack, we also offer a free lunch in our canteens</li><li>
we offer guidance on the administrative side of relocation and visa processes through our relocation agency</li><li>
collaboration thrives on direct exchange - we rely on 80% office presence and 20% mobile working</li><li>
from now a permanent full- or part-time position in a modern office in the heart of Berlin: http://www.axelspringer-neubau.de/</li></ul><div></div><p>
The most frequently asked questions and their answers can be found on our FAQ page: career.axelspringer.com/en/faq<br>
<br>
Diversity is an essential part of our corporate culture! We are looking forward to receiving all applications regardless of gender, nationality, ethnic and social origin, religion, ideology, disability, age, sexual orientation and identity.<br>
<br>
You can find information about the representation for the severely disabled at Axel Springer here: https://career.axelspringer.com/en/rsde</p></div>

Senior / Staff Fullstack Developer – Authentication & Profile

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