Senior Software Engineer – Payments & Kotlin (Hybrid London)

Company: Formula.
Apply for the Senior Software Engineer – Payments & Kotlin (Hybrid London)
Location: London
Job Description:

Formula. is seeking a Senior Software Engineer in London to support a major banking transformation project tasked with rebuilding the payment system for multiple channels and methods.

The role is hybrid with three days on-site per week in London, paying £600 per day Inside IR35. The initial term is six months with potential extension, targeting candidates with domain expertise in payments, Kotlin, and solution design.

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Posted: September 25th, 2026