Senior Data Scientist

Teads Inc.; Paris; Hybride; EUR 120 000 - 180 000; Plein temps

Résumé du poste

Teads Inc. is seeking a Senior Data Scientist to join a large AI/Applied Research team in Paris, focused on ad-tech prediction, online learning, and high-throughput systems.

You will bridge research and engineering, delivering production-ready features and driving experimentation in a fast-paced, privacy-conscious environment. You bring 8+ years in applied ML research, strong software engineering skills, and the ability to communicate complex ideas to product and technical peers.

Qualifications

• Advanced degree (MSc/PhD) in a quantitative field or equivalent industry experience.
• +8 years of experience in applied research deploying ML in high-throughput online environments.
• Strong software engineering fundamentals; models integrated into the code stack.
• Critical thinking: evaluate papers and implement core findings effectively.
• Excellent communication; explain complex ideas clearly to technical and non-technical audiences.

Responsabilités

• Innovate at scale: CTR prediction, online learning regimes, high-dimensional embeddings.
• Bridge research & engineering: turn research gaps into production-ready features.
• Own the lifecycle: from literature review to A/B testing and live monitoring.
• Experiment freely: dedicate time to deep-work and explore new algorithmic approaches.

Connaissances

Data science

ML deployment

Communication

Cross-functional collaboration

Research critique

Formation

MSc/PhD in quantitative field

Outils

Scala

TypeScript

Description du poste

Teads is a leading omnichannel advertising platform building the future of digital advertising where quality content, trusted publishers, ambitious brands, and human creativity can thrive. Operating at true scale - processing 18 billion ad opportunities every single day - we connect global brands with a monthly reach of over 2.2 billion unique users.

At Teads, we believe your impact travels further. We are a borderless team of 1,700+ innovators across 30+ countries who favor outcome over tenure, value trusted autonomy, and use predictive AI to amplify human ingenuity rather than replace it. We move at pace, tackle genuinely complex problems, and foster a high-accountability culture that stays genuinely human. If you are looking for room to build and meaningful scope, you belong here. Learn more at www.teads.com .

Our main Engineering challenges at Teads

• Buildefficient and easy-to-use web productsused by thousands of users working for the world’s most premium publishers, advertisers, and agencies.
• Rich and diverse tech stack and system architectureto optimize forperformance, scalability, resiliency, and cost efficiency. We use mostly Scala and TypeScript, among others.
• Working in a veryhigh-trafficenvironment (2.2 billion users per month, 100 billion events per day) with low latency and high availability constraints (2 million requests per second, responses in less than 150 milliseconds).
• Management oflarge datasetswith milliseconds order of magnitude access time, to compute in a near real-time complex auction resolution algorithm (18 million predictions per second).
• A fast-changing environment where we continuouslycollaborate with Product teamsand constantly adapt our Cloud infrastructure fornew features and Products.
• Bring a wide diversity of profiles to the same level of quality and knowledge
• Work in an international environment with offices located in Israel, Slovenia and France.

About the opportunity

We are looking for a Senior Data Scientist to join a team of applied research.

The AI department currently consists of 50 people who are a mix of data scientists, machine learning and backend engineers.

The department provides technologies that power outcomes of campaigns with a total yearly turn over of $1.7B.

Runs large scale prediction and control systems for ad delivery, dealing with millions of live ads, doing more than a billion predictions per second based on large on-line trained models being updated every 5 minutes.

What will you do?

As aData Scientist, your mission will be to:

• Innovate at Scale: Stay at the forefront of AdTech research, focusing on CTR prediction, online learning regimes, and high-dimensional embeddings.
• Bridge Research & Engineering: Collaborate with cross-functional teams to identify research gaps and translate them into production-ready features.
• Own the Lifecycle: Lead the end-to-end process—from reading the latest ArXiv papers to A/B testing and monitoring model performance in a live environment.
• Experiment Freely: Dedicate time to "deep-work" sessions, testing unconventional hypotheses and new algorithmic approaches.

What will you bring to the team?

• The Foundation: An advanced degree (MSc/PhD) in a quantitative field or equivalent "in-the-trenches" industry experience.
• The Toolkit: +8 years of experience in applied research, specifically deploying ML algorithms into high-throughput online environments.
• The Hybrid Edge: Strong software engineering fundamentals; you don’t just design models, you understand how they fit into the code stack.
• Critical Thinking: The ability to dismantle a scientific paper, critique its methodology, and implement its core findings effectively.
• Communication: A knack for making the complex simple. You can explain a transformer-based ranking system to a peer or a product manager with equal clarity.

Life at Teads

At Teads, we don’t just offer jobs. We blend creativity, technology, and cutting-edge data to shape the future of media.

As a Teadster, you’ll work alongside smart humans, collaborate with meaningful brands, and leverage advanced AI and automation to redefine how advertising works in a transparent, privacy-first world.

We are builders, innovators, and future-thinkers. If you are excited by the evolution of technology and ready to embrace the future of AI-driven media, you belong here.

Why Join Us?

• A New Era of Media: We’ve merged two open internet category leaders, Outbrain and Teads to create a unified omnichannel platform. Together, we drive results from branding to performance across CTV, mobile, and web.
• AI-Powered Innovation: We actively embrace AI and next-gen technology to solve complex industry challenges. We look for curious minds who aren't afraid to experiment, adapt, and lead the charge into the future of digital advertising.
• Growth & High Performance: Our culture is dynamic, global, and built on excellence. We are committed to your success, offering the modern tools, mentorship, and development opportunities you need to thrive.
• Belonging & Impact: We foster a welcoming, diverse environment where approachable, resourceful, and passionate people excel. Through our employee-ledEmployee Resource Groups (ERGs), you can actively drive change in areas like sustainability, women’s empowerment, charitable initiatives, and DE&I.

Equal Opportunity Employer Teads is committed to diversity, equity, and inclusion at all stages of recruitment and employment. We celebrate unique perspectives and are dedicated to building a team that reflects the global communities we serve.