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Randstad Logo Randstad · IT - Software Development

Full Stack Engineer

United Kingdom, London 550.00 - 700.00 GBP / Day · Job Posted June 30, 2026
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Job Description

We are looking for a Senior Full Stack / Backend Engineer (Level III) to join the Trust & Safety / Policy Platform team for one of the world's leading, household-name audio streaming platforms. If you are a backend-heavy engineer who enjoys the autonomy of building robust APIs and crafting the internal web tools that power them, this contract is for you.

Job Responsibility

  • Build and scale the core APIs and services that expose complex policy logic across detection, enforcement, and compliance surfaces
  • Model data for strict auditability, versioning, and efficient querying, feeding structured datasets directly into downstream machine learning models
  • Design and implement intuitive, responsive web interfaces that allow non-technical stakeholders (Legal, Operations, Trust & Safety) to author and manage content policies with robust approval workflows
  • Translate global regulatory requirements into airtight engineering constraints and audit trails

Requirements

  • Strong production experience building high-scale services using Java, Kotlin, or Go
  • Hands-on experience building clean, intuitive internal tooling using React and TypeScript
  • Deep understanding of API design, backward compatibility, and data modeling for complex, versioned systems where stability is critical
  • Experience working with data pipelines and a solid grasp of the trade-offs between real-time and batch processing
  • An eye for usability
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