Senior Software Engineer – Janus Platform

The Trade Desk The Trade Desk · Media · London, United Kingdom · Software Engineering

Senior Software Engineer role focused on building and evolving The Trade Desk's internal feature release platform (Janus). This platform integrates with hundreds of internal services to propagate configuration changes in near real-time, enabling cross-functional teams to release features. The role involves owning the full stack, building self-service tooling, ensuring platform reliability at scale, and driving architectural decisions.

What you'd actually do

  1. Own the design, development, and evolution of the Janus platform end-to-end, from frontend workflows to backend infrastructure
  2. Build self-service tooling that empowers cross-functional teams to act independently and reduce bottlenecks in the feature launch process
  3. Ensure platform reliability at scale: high availability, high-volume traffic handling, and near real-time config propagation across hundreds of integrated services
  4. Collaborate closely with stakeholders across the company to translate loosely defined requirements into reliable, well-engineered solutions
  5. Drive architectural decisions and set engineering quality standards for the team

Skills

Required

  • platform services
  • internal tooling
  • developer infrastructure
  • distributed systems
  • availability
  • consistency
  • low-latency data propagation
  • navigating ambiguity
  • user experience
  • self-driven
  • collaborative

Nice to have

  • frontend workflows
  • backend infrastructure
  • high-availability
  • high-volume traffic handling
  • near real-time config propagation