Lead Software Engineer

Company: Formula.
Apply for the Lead Software Engineer
Location: London
Job Description:

Lead Software Engineer (£750 Inside IR35, Hybrid – London)

A major UK bank requires a Lead Software Engineer to support 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:

  • Specific domain expertise in payment gateway systems
  • Full Stack – Kotlin (willingness to transition) and React.js
  • Solution architecture and design capabilities
  • Ability to translate high‑level requirements into structured backlogs
  • Team leadership experience
  • Up to £750 per day, Inside IR35
  • 3 days onsite per week (London)
  • Initial term 6 months (subject to extension)

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Posted: June 1st, 2026