Senior People Partner at Synthesia (London, United Kingdom)
Synthesia· London, United Kingdom·
Role details
Synthesia at a glance
All-in-one AI video platform that lets businesses create, localize, manage and publish professional videos with AI avatars and voiceovers, no cameras or editing skills required.
Synthesia is an AI video platform for business. Users write a script, pick from 240+ AI avatars and voices in 160+ languages, and the platform generates studio-quality video with synced lip movement and on-brand styling, no cameras, actors or editing skills needed. It covers the full workflow: creation, real-time collaboration, one-click translation and AI dubbing, brand kits, analytics, version control and SCORM export into learning management systems.
$530M+ raised · latest: Series E ($200M, $4B valuation, Jan 2026) · backed by Google Ventures (GV), Evantic Capital, Hedosophia, NVentures (Nvidia)
Job description
Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow.
Senior People Partner
The Role
We’re looking for a Senior People Partner to help shape our People strategy and execution as we scale. You’ll report to the HR Director and work closely with senior leaders across our customer organisation, acting as both a strategic advisor and a hands-on executor. You’ll build high-performing teams, spot emerging risks and opportunities early, and own the delivery of key people initiatives.
What You’ll Do
- Partner with leaders on organisational design, role clarity and how to structure for growth and impact
- Use data and insights (attrition, engagement, performance, talent distribution) to build a clear picture of organisational health and set priorities
- Advise and coach managers and leaders through complex people challenges, raising the bar on performance, feedback, accountability and talent development
- Support talent management practices including succession planning, performance calibration and development of critical talent
- Own the execution of key people initiatives from strategy through design and delivery, making sure they drive meaningful outcomes
- Take a hands-on approach to complex performance, employee relations and organisational issues, using sound judgment and pragmatism
- Partner with specialist teams (Talent, People Ops, Total Rewards) and use AI and automation to simplify people practices and improve decision-making
We’d love to hear from you if you have
- Significant experience as a People Partner, HR Business Partner or similar strategic HR role
- First-hand experience of organisations scaling, with an understanding of what needs to evolve at different growth stages
- A track record of advising senior leaders on organisational design, talent, performance and leadership decisions
- Strong organisational diagnostic skills, with the ability to connect people data, business performance and leadership behaviour to find root causes
- Commercial acumen, and the ability to understand how organisational decisions influence productivity and business outcomes
- Experience handling complex performance and employee relations matters, balancing business needs, employee experience and risk
- Excellent relationship-building and influencing skills, with the confidence to challenge senior stakeholders while maintaining trust
- Strong written and spoken communication in English
We’d be particularly excited if
- You’ve worked in a high-growth technology, SaaS or AI business
- You’re curious about how AI and technology can improve the way People teams and businesses operate
- You’re comfortable building plans and executing them yourself, as well as advising on strategy
Why work at Synthesia
- Global & Remote-First Culture: Team spans 26+ countries. Offices in London and NYC, with remote work flexibility. Roughly 80% of London HQ staff are immigrants, fostering a diverse, international environment.
- High-Velocity Engineering: Engineers deliver meaningful features every few days (no long releases). Minimal meetings and SCRUM ceremonies — a focus on building and shipping.
- Growth & Ownership: Real ownership from day one. Clear progression paths, annual learning budget, access to courses and conferences.
- People-First & AI Ethics: 10% of team dedicated to AI safety. Strong emphasis on work-life balance with competitive compensation, PTO, and benefits.
- H-1B Friendly: CEO Victor Riparbelli has publicly highlighted that the London office provides a strong alternative to US visa uncertainty, with ~80% of staff being immigrants.
- Top-Tier Team: Founders and engineering leadership from Stanford, Cambridge, UCL, TUM, and top tech companies.