Prinicpal Software Engineer

We’re working with a profitable, engineering-led fintech that builds software used by investment firms to manage reporting, data, and client-facing outputs.

Their platform underpins core workflows for their clients – handling complex, highly tailored requirements across data processing, reporting logic, and content generation. They’re now at a key stage of growth: evolving the existing system while building out new products alongside it.

They’re looking for a Principal Engineer to take ownership of how that platform develops from here. This is a senior, hands‑on position with real influence over both architecture and delivery.

You’ll be:

• Leading the evolution of a live, business-critical Python platform
• Designing and building new systems and features from the ground up
• Owning architectural decisions across backend services and cloud infrastructure
• Working closely with stakeholders to shape solutions, not just implement them
• Setting technical direction and raising engineering standards within a small team

What They’re Looking For:

• Track record of owning or significantly evolving production systems
• Experience making architectural decisions and working across the full lifecycle
• Comfortable operating in a smaller, high‑ownership environment
• Able to communicate effectively with both technical and non‑technical stakeholders

Why It’s interesting:

• Ownership of a core platform and its future direction
• Worldwide travel insurance
• Beautiful, modern office in Central London
• Profitable company with a clear growth roadmap

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