Senior Backend Engineer AI Tooling & Platform

Synthesia Limited

Washington

Remote

GBP 90,000 - 130,000

Full time

5 days ago

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Job summary

Synthesia Limited is seeking a Senior Software Engineer for the Developer Platform team. You will own end-to-end architectural decisions that govern how features are built, released safely to customers, and maintained long-term.

You will mentor engineers and embed best practices through code reviews and design partnership. You will lead large initiatives spanning quarters, break down complex problems into milestones, and operate with high autonomy—defining success, evaluating trade-offs, and

Qualifications

7+ years as a software engineer.
2–3 years in senior/staff level roles.
Experience building and operating developer platforms.

Responsibilities

Own architectural decisions that govern how features are built and released safely.
Mentor engineers and embed technical practice through code reviews and design partnership.
Lead projects spanning quarters with milestones and iterative validation.
Drive adoption of AI-powered developer tools across the engineering organization.