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Senior Engineering Manager, Agents Platform

Synthesia - London, England, United Kingdom - Hybrid - posted 2026-09-28

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Salary: EUR/GBP/CHF 180,000 - 0 / annual

Synthesia, the world's leading AI video platform for business, is seeking a Senior Engineering Manager to lead the Agents Platform team. This is a people-management role reporting to senior leadership, responsible for building and scaling a highly reliable platform layer that serves as the foundation for other product teams. You will lead the delivery of complex engineering projects focused on driving user acquisition, activation, and revenue growth. Key responsibilities include breaking down initiatives into manageable stages with predictable timelines, making clear trade-offs between speed, experimentation, and long-term scalability, and partnering closely with product and data teams to prioritize high-impact work and maximize business outcomes. You will manage team performance proactively, ensuring strong execution and continuous improvement. This includes understanding engineering leveling, scaling the team by identifying and filling skill gaps (particularly in experimentation, performance, and conversion optimization), and collaborating with recruiting to attract and retain top talent. You will support engineers in delivering measurable impact and developing their careers through ownership of key growth metrics. The Agents Platform team is responsible for building a highly reliable platform with consistent uptime, low latency, and extensive support for model types and voice types. This work is done in close collaboration with R&D to productionize their work and with the wider Product organization to cover immediate needs. You will navigate difficult conversations with clarity and empathy, especially when balancing business urgency with technical quality, and foster a collaborative, high-velocity team culture aligned with company goals. Synthesia is headquartered in London with offices across Europe and the US. The company was founded in 2017 and recently raised $200 million in Series E funding, bringing total funding to over $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, and GV. The platform is used by over 90% of the Fortune 100 and serves 50,000+ customers. REQUIREMENTS: - Proven experience leading multiple engineering teams delivering high-impact, user-facing projects (ideally 4+ years) - Strong ability to operate in fast-paced, experiment-driven environments with clear business metrics - Experience scaling teams and aligning them to product and revenue goals - Proven ability to track performance and help team members improve output and impact - Excellent communication skills, especially in cross-functional environments (product, data, design) - Relevant engineering background building scalable SaaS products - Experience with growth, experimentation, or conversion optimization is a strong plus

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