Principal Engineer Consultant in Adtech - Data Science & AI Department

About Teads

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 .

About the opportunity We are seeking a Principal Engineer Consultant for our Data Science & AI department, with deep experience in the advertising industry, to join a team of passionate engineers who build advertising solutions at world scale. We build and operate large-scale distributed machine learning systems that make 1B predictions per second during real-time auctions.

The Principal position at Teads represents the highest level of seniority on the IC ladder. They are tackling cross-functional, strategical, and pivotal initiatives, prioritizing robust engineering choices. Principals are working closely with the Leadership, Product and Engineering teams, all while fostering a culture of excellence.

What will you do?

As a Principal Engineer in our Data Science & AI Department your mission will be to:

• Stay on top of the state-of-the-art science and technology of large scale advertising systems
• Areas of interest are models for CTR and CVR, foundation models for recommendation systems, on-line learning, cold start, embeddings for users, ads and similar,ad matching and ranking, pacing and optimal bidding, auction design, etc.
• Work with teams of data scientists and machine learning engineers to identify investment opportunities
• Help the teams across the organization in implementing the solutions as an advisor
• On projects you choose you will be a part of the implementation team where you will be expected to participate in bringing them projects to the production environment
• Work with product managers to find data science and AI projects with best cost/benefit risk/reward ratios
• Spend time experimenting with new approaches by yourself
• Follow industrial and academic research, occasionally publish at conferences

• Deep experience of the ad tech industry use of AI and data science
• Strong communication skills, working collaboratively with the team, able to teach concepts, and communicate complicated topics to expert audiences
• Strong problem solving skills, and ability to align teams on solutions
• True scientist skills: fast learner, curious, sense of details, rigorous
• Experience in Statistics (i.e. statistical analysis, regression analysis, …) and/or Artificial Intelligence (i.e. Data Mining, Machine Learning, …)
• Ability to read scientific articles, to analyze critically, and to implement as appropriate
• Good taste in architecture of AI systems

• The AI department currently consists of 50 people who are a mix of data scientists, machine learning and backend engineers
• Your peers will all have deep experience from on-line ad systems from Teads and previous companies. We are staying at the bleeding edge of research and technology
• 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

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-led Employee 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.