Machine Learning/ AI Engineer - Agentic Systems

Join Synthesia as a Machine Learning / AI Software Engineer focused on building intelligent, scalable, and production‑ready AI agents that redefine how people learn.

What you’ll do at Synthesia

• Design, build, and deploy production‑grade AI agents using frameworks such as OpenAI Agents SDK.
• Own architectural components within the Copilot project, ensuring modular, scalable and maintainable designs.
• Implement new features quickly to improve user experience and unblock the team as we iterate.
• Collaborate closely with researchers and engineers to integrate LLMs into complex, multi‑agent systems.
• Write clean, efficient and tested code following best engineering practices.
• Optimize and maintain agent pipelines from prototype to production.
• Spread good practices around scalable agentic system design and AI software engineering.

Who you are

• You have a background in Computer Science, Software Engineering or a related field.
• You have 6+ years of experience in software engineering, with at least 3+ years in ML/AI engineering or NLP‑related development.
• You are an engineer at heart, you enjoy building working systems more than writing research papers.
• You have strong Python skills and experience building and maintaining production systems.
• You have hands‑on experience with agentic frameworks such as OpenAI Agents SDK, LangChain, CrewAI or LangGraph.
• You have built and deployed real‑time multi‑agent applications that are deployed to and tested by real users.
• You communicate clearly and work well in small, fast‑paced teams.

Nice to have

• Experience using or fine‑tuning LLMs (directly or via APIs).
• Comfort with cloud environments (AWS, GCP) and Docker.

Collaboration

• Work closely with the Copilot Team, a cross‑functional group of engineers and researchers.
• Own key architectural aspects of the system while collaborating daily on design, implementation and deployment.
• Empower others with your engineering expertise and improve how the whole team builds and scales agents.

Why join us?

We’re building the future of AI‑driven learning. Our instructional design agents transform how educational content is created—from course outlines and writing to visuals, interactivity and immersive role‑play scenarios. You’ll work alongside world‑class engineers and researchers to make high‑quality education creation accessible to everyone.

Our culture

At Synthesia we’re passionate about building, not talking, planning or politicising. We strive to hire the smartest, kindest and most unrelenting people and let them do their best work without distractions. Our work principles serve as our charter for how we make decisions, give feedback and structure our work to empower everyone to go as fast as possible.

Benefits

• Competitive compensation (salary + stock options + bonus)
• Hybrid work setting with an office in London, Amsterdam, Zurich, Munich or remote in Europe.
• 25 days of annual leave + public holidays
• Great company culture with the option to join regular planning and socials at our hubs
• Other benefits depending on your location

Additional Information

Seniority level: Mid‑Senior; Employment type: Full‑time; Job function: Engineering and Information Technology.