Senior People Partner

Synthesia; Greater London; On-site; GBP 90,000 - 135,000; Full time

Job summary

Synthesia, a leading AI video platform, is seeking a Senior People Partner to shape our People strategy as we scale. You’ll report to the HR Director, partnering with senior leaders across our customer organisation and acting as a strategic advisor and hands-on executor.

You’ll build high-performing teams, identify risks and opportunities early, and own delivery of key people initiatives end-to-end, including talent management, performance, and employee relations.

Qualifications

• Significant experience as a People Partner, HR Business Partner, or similar strategic HR role.
• Experience scaling organisations and evolving processes at different growth stages.
• Proven track record advising senior leaders on design, talent, performance and leadership decisions.
• Strong diagnostic skills linking people data to business outcomes.
• Commercial acumen with understanding of productivity impact from organisational decisions.
• Experience handling complex performance and employee relations matters.
• Excellent relationship-building and influencing abilities with senior stakeholders.
• Strong written and spoken English communication.

Responsibilities

• Partner with leaders on organisational design, role clarity and structure for growth.
• Use attrition, engagement, performance and talent data to assess health and set priorities.
• Coach managers and leaders through complex people challenges and drive accountability.
• Support talent management including succession planning and development of critical talent.
• Own execution of key people initiatives from strategy through delivery and outcomes.
• Take a hands-on approach to performance, ER, and organisational issues with sound judgment.
• Collaborate with Talent, People Ops and Total Rewards, leveraging AI to improve decisions.

Skills

People Partner

HRBP experience

Organisational design

Data-driven HR

Leadership coaching

Talent management

Employee relations

English fluent

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