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Salary: EUR 120,000 - 0 / annual
Synthesia is a $4B AI video platform trusted by 90% of the Fortune 100. You'll join the Roleplay Sessions team to build the ML engine powering interactive training simulations where learners practice real conversations with AI avatars.
In this applied ML role, you'll develop models that listen to learner speech during roleplay exercises, score performance in real time, generate personalized coaching feedback, and determine how the AI avatar responds based on learner behavior. This is product-focused engineering, not pure research—you'll work across different products and iterate rapidly.
You'll collaborate with a high-performing engineering team at a company known for strong engineering culture and shipping fast. The role requires balancing ML expertise with pragmatic software development skills, comfort with iteration, and alignment with commercial impact.
Synthesia has raised $530M+ from top-tier investors (Accel, Nvidia Ventures, Kleiner Perkins, GV) and serves 50,000+ customers including Heineken, Zoom, Xerox, and McDonald's. The company is headquartered in London with teams across Europe and the US, and maintains a strong focus on AI safety, ethics, and security.
Requirements: 7+ years as a software engineer with 2+ years at senior level; experience in high-performing, scaled engineering teams; ability to apply ML to real product problems; pragmatism and bias toward action.
