Senior Full Stack Engineer - Editor

🔒 Confidential Employer
Posted 7 May 2026
LOCATION
London
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Software Engineering
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

TypeScript React.js Redux Node.js Fastify gRPC Prisma AI/LLMs

FULL DESCRIPTION

Senior Full Stack Engineer - Editor

[Employer hidden — sign up to reveal] is hiring a Senior Full Stack Engineer to join the Editor Core team. This hybrid role is based in London, Amsterdam, or Barcelona. You will build and refine the core video editor, implement AI-powered features, and solve complex technical challenges.

About the company

At [Employer hidden — sign up to reveal], our mission is to make video creation accessible to anyone. No hard-to-use equipment, painful learning curve, or keeping track of multiple subscriptions. With [Employer hidden — sign up to reveal], you can do this with a single tool. In just a few years, we’ve gone from one user to millions, from $0 to $45M+ ARR, from bootstrapped to backed by Sequoia, and from a team of two to 180+.

Where And How We Work

At [Employer hidden — sign up to reveal] we are hybrid. For London, Amsterdam, and Barcelona teammates, we ask for 3 days a week in the office during your first 6 months, then 1 day a week afterward.

About the team

Editor Core is at the heart of what we do: powering the editing engine that supports millions of creators, marketers, and businesses. We focus on performance, stability, and bringing delightful features to life.

What you'll do

  • Build and Refine the Editor: Work on [Employer hidden — sign up to reveal]'s core video editor, developing features that make video editing more intuitive, powerful, and accessible, including AI capabilities like Edit-by-Text.
  • Ship Features That Matter: Own features end-to-end from concept to production, including timeline, playback controls, effects, transitions, and AI-powered editing tools.
  • Collaborate Across Teams: Partner closely with designers, product managers, and other engineers to create seamless editing experiences.
  • Solve Complex Technical Challenges: Tackle performance optimization for video rendering, build responsive UIs, and architect scalable solutions.
  • Drive Quality and Innovation: Implement experiments, analyze metrics, and push the boundaries of browser-based video editing.

Our Stack

Frontend: React.js, Redux, TypeScript. Backend: Fastify, gRPC, Prisma with TypeScript and Node.js.

About you

  • You take ownership.
  • You have strong TypeScript skills.
  • You're interested in AI/LLMs.
  • You can lead technical initiatives.
  • You care about quality.
  • You communicate effectively.
  • You ship often and measure impact.

What we offer

  • Monthly subsidy programme
  • Unlimited paid holidays
  • Home office set-up
  • Mental health benefit with Spill

[Employer hidden — sign up to reveal] is an equal opportunity employer.

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