Principal Software Engineer

Principal Software Engineer (C#) | London | £110,000-£130,000

Peaple Talent is working with a fast-growing UK fintech that is transforming how customers access financial services through modern, technology-driven solutions.

We’re looking for a Principal Software Engineer to play a key role in shaping and evolving a scalable technology platform within a highly collaborative engineering environment. This is an opportunity to combine hands‑on technical leadership with strategic influence, helping to guide architecture decisions while mentoring engineers and driving engineering excellence.

Why You’ll Love It

• Shape the technical direction of a growing fintech platform
• Lead high-impact engineering initiatives and architecture decisions
• Work in a collaborative, agile, and innovation-focused environment
• Influence engineering standards and best practices
• Strong engineering culture focused on quality and continuous improvement

What You’ll Bring

• 5+ years’ experience in senior or principal engineering roles
• Strong commercial experience with C# and .NET development
• Experience designing and building scalable software systems
• Strong problem-solving and analytical skills
• Ability to translate business requirements into technical solutions
• Excellent communication and collaboration skills
• Degree in Computer Science, Engineering, or related field (or equivalent experience)

Nice to Have

• Experience working in regulated or complex technical environments
• Experience mentoring or leading engineers
• Strong understanding of software architecture and design principles
• Experience with automated testing and quality assurance practices
• Experience working in fast-paced product-led businesses

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