Synthesia

(Senior or Staff) Backend Engineer, AI tooling

Synthesia
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1 day ago
Remote, United Kingdom +6 moreSenior / Staff+

Responsibilities

  • Own architectural decisions for how features are built, safely released, and supported long term.
  • Lead multi-quarter developer platform and tooling projects, defining milestones, success criteria, and trade-offs.
  • Mentor engineers through code review and design partnership.
  • Partner with leadership to shape the roadmap and technical strategy.
  • Own the operational health, maintenance, iteration, and deprecation of platform systems.
  • Set the technical direction for the area and anticipate challenges over a 12-month-plus horizon.
  • Lead adoption of AI-powered developer tools and capabilities across the engineering organization.
  • Integrate and operate third-party services, APIs, SaaS tools, and external platforms in internal systems.

Requirements

  • At least seven years of software engineering experience, including two to three years working at senior or staff level.
  • Hands-on experience building and operating developer platforms, CI/CD systems, observability or metrics infrastructure, code quality automation, testing infrastructure, or developer tooling.
  • Experience shipping infrastructure or tooling that measurably improved developer velocity or reduced cognitive load.
  • Previous experience leading adoption of AI-powered developer tools across an engineering organization.
  • Experience in a high-performing scale-up or established engineering organization building for other engineers.
  • Experience integrating third-party services with attention to reliability, security, and user experience.
  • Experience owning large technical areas end to end and connecting platform work to commercial outcomes.
  • Ability to lead technical direction, make trade-offs, influence requirements, and collaborate with leadership.

Benefits

  • Full-time employment only; contractors are not accepted, usually through OysterHR.
  • Preferred work arrangement is in-office or remote in the UK, Germany, Switzerland, or Ireland, with other European locations potentially supported subject to compliance and right-to-work checks.
  • Salary starts at EUR/GBP/CHF 130.000 base plus equity in the form of RSUs.
  • 25 days of leave plus local holidays.
  • Visa sponsorship is available only for candidates already in a UK or EU country who need support; the company does not relocate people.

Tech Stack

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Synthesia

About Synthesia

501-1,000 employees

Synthesia builds an AI video creation platform that lets businesses generate videos from text using avatars, voiceovers, and templates, with enterprise controls for scale and compliance. It operates a cloud-based subscription model serving training, internal communications, and marketing teams. Founded in 2017 and headquartered in London, the privately held company reports widespread adoption across the Fortune 100.

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