Research Scientist, AI​/ML; PhD

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Ads is the largest revenue generator at Meta and Ads Quality represents around 20% of total revenues which are used to generate long‑term ads and organic engagement. Core Ads Quality is a unique team jointly optimizing for both quality and revenue, aiming at making this investment more revenue/quality trade‑off efficient and generate long‑term revenue growth through user learning. Among others, Core Ads Quality focuses on finding the right trade‑off between short and long term revenues, standardising and optimising quality treatment of ads across surfaces and page types, understanding user behaviour with respect to ads quality, and building a solid infrastructure around signals, labels and quality metrics.

We work at the intersection of Ads, Machine Learning and User Behaviour understanding. The nature of our work is very analytical, with a solid collaboration with our Data Scientist and a heavy focus on not only understanding “what” but also “why”. Despite having been created a couple of years ago, the Ads Quality space at Meta is still nascent and full of unexploited opportunities.

The organization is further structured into the following teams/sub‑pillars:
Integrity & Efficiency, Ads Conversion Familiarity, Post‑Click Quality, Modelling and Quality Science. The team has consistently hit their goals and delivered incremental long‑term revenue for Meta while ensuring high ads quality.

• Apply relevant AI and machine learning techniques to build Ads auction/user behaviour treatments
• Develop novel, accurate AI algorithms and advanced systems for large‑scale applications
• Work towards long‑term ambitious production goals, while identifying intermediate milestones
• Directly contribute to experiments, including designing experimental details, developing reusable code, running evaluations, and organising results
• Work with large data, and contribute to development of large‑scale foundation models
• Design methods, tools, and infrastructure to push forward the state of the art in AI

• Currently has or is in the process of obtaining a PhD in Artificial Intelligence (AI), Computer Science, or a related technical field
• Experience developing machine learning algorithms or machine learning infrastructure in Python, PyTorch, and/or C/C++
• Experience in training, fine‑tuning, and/or experimenting with foundation models beyond black‑box use

• Experience in Reinforcement Learning, Generative AI, Large Language Models, etc.
• Experience in Ads, especially in auction theory and implementation (bidding, budgeting, targeting)
• Experience in User Behaviour modelling, Long‑term Value optimisation or Causal Learning

Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and Whats App further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology. People who choose to build their careers by building with us at Meta help shape a future that will take us beyond what digital connection makes possible today—beyond the constraints of screens, the limits of distance, and even the rules of physics.

Individual compensation is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base hourly rate, monthly rate, or annual salary only, and do not include bonus, equity or sales incentives, if applicable. In addition to base compensation, Meta offers benefits. Learn more about benefits at Meta.