About the role

Depop’s Trust Detection squad builds proactive, scalable detection systems that identify harmful content and user behaviour early, enabling fast, fair and effective moderation at scale. As a Senior Backend Engineer in Trust Detection you will shape, evolve and scale these detection capabilities, working closely with ML engineers, scientists and cross‑functional partners.

Responsibilities

• Independently design and deliver backend solutions to medium‑to‑large problem spaces, from discovery through production and iteration.
• Build and evolve core detection services, pipelines, and APIs that operate at scale and under real‑world adversarial conditions.
• Work hands‑on with ML Engineers and ML Scientists to productionise models and improve detection pipelines, monitoring, and iteration loops.
• Take end‑to‑end ownership of your work, including design, implementation, testing, observability and operational support.
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