Senior Software Engineer

Formula. • london, london, United-Kingdom • Posted June 08, 2026

Location london, london
Job Type Full-time
Category Software Development
Posted June 08, 2026

Senior Software Engineer : £615/day Inside IR35 : Hybrid London (3x per week) : Banking client


A major UK bank is seeking Senior Software Engineers to support on a major transformation project to rebuild the payment system, replacing their existing enterprise solution.


The new product will support a broad range of payment methods and channels across both in-person and digital environments.


Key requirements:

  • Full Stack : Kotlin (essential) and React.js (nice-to-have)
  • Solution architecture and design capabilities
  • Taking high level requirements and creating structured backlogs


Key details:

  • Up to £615 per day Inside IR35
  • 3 days onsite per week (London)
  • 6 months initial term (subject to extension)
  • Immediate starters


Apply now or reach out directly to find out more.


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