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🥝 Senior Software Engineer

Opulent Mind | remote, United-Kingdom | Posted June 06, 2026

Job Description

Senior Software Engineer | Java Engineer | Senior Backend Developer

Build the engine room of a payments platform that actually understands money.

Most payments companies are wrappers. Money goes in, money comes out, and nobody can tell you why a particular merchant got paid the amount they did, against which rule, on which day.

Our client can. That is the whole product.

We're partnering on a search for a well funded London fintech orchestrating the messy middle of payments, pay-ins via cards, Direct Debit and open banking, explicit allocation between multiple parties, payouts that survive late failures, disputes and chargebacks weeks after the fact. The platform is live, first customers are onboarded, and there is a clear runway to transaction volumes in the hundreds of millions of pounds.

A second funding round closed earlier this year. The core is built. Now the team is shaping what comes next.

The problem you&#...

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