Principal Software Engineer

Here it is:

Principal Platform Engineer Belfast (Hybrid) | Permanent | Confidential Client

If you're not based in Belfast or within commuting distance, this one's not for you.

Our client is a fast-scaling fintech building the next generation of payment infrastructure. They're merchant-first, engineering-led, and genuinely obsessive about outcomes over process. Small teams, real autonomy, hard problems.

They're hiring a Principal Platform Engineer to own the design and delivery of a suite of Model Context Protocol (MCP) servers - the trusted, governed gateway between AI agents and their core payments platform.

This is a hands-on principal role. You'll set technical direction and write production code, not just review it.

What you'll be doing:

• Owning the architecture and delivery of MCP servers that expose plat...

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