Principal Engineer – Build the Future of SME Finance Remote-first (UK-based) | London meetups | ️ Hands-on Architecture | Team Leadership | Fintech for Good We’re working with a mission-driven fintech that’s solving a massive problem: small businesses — the backbone of the UK economy — are still underserved by traditional finance . This company is changing that, helping banks and lenders make faster, smarter, fairer credit decisions using real-time financial data. Already trusted by 80 major banks and lenders, they're scaling fast — and now they’re looking for a Principal Engineer to shape the next stage of their platform and lead from the front. Why This Role is Great You’ll architect the core of the platform used by major UK banks and lenders Get in early enough to influence big decisions — but with real traction already proven Work across multiple product teams, mentoring, guiding, and building alongside them Blend strategy and code — be the go-to technical voice in the room Remote-first with the flexibility to come together in London when it counts Genuinely meaningful work: better finance access for 5.5 million UK SMEs What You’ll Be Doing Lead architecture decisions and make them real — from developer-friendly APIs to scalable platform components Guide cross-functional teams (frontend, backend, QA) with your experience and technical instincts Collaborate closely with product, design, and commercial teams to build solutions that actually solve real problems Balance pragmatism with perfection — make things work first, then make them beautiful Mentor senior engineers and help scale a top-class team Be a visible, respected voice across the business, bringing clarity and confidence to complex tech questions Help shape hiring, team growth, and long-term engineering strategy ️ Tech Snapshot Languages: Java, Kotlin, JavaScript Frontend & Frameworks: React, Spring, Temporal Databases: PostgreSQL, MongoDB Cloud: AWS (heavy use), with IaC (Terraform) Practices: TDD, CI/CD, clean architecture, pragmatic testing Bonus Points: Data engineering or machine learning experience What They’re Looking For A Principal Engineer, Tech Lead, or Software Architect with at least 2 years at this level You’ve built and scaled SaaS platforms — ideally in fintech or data-heavy domains You’re a hands-on problem-solver who can step back, see the big picture, and then guide others through it You’re confident working with stakeholders from execs to product managers — turning complexity into clarity You care deeply about engineering craft, team health, and customer impact You can mentor senior engineers and inspire confidence across the org Perks & Benefits Remote-first role with London-based meetups (office in Shoreditch) 25 days holiday public holidays Life assurance (4x salary) Pension contribution Virtual GP & wellbeing support Perks & discounts with top retailers (ASOS, Tesco, Amazon, etc.) Referral bonus scheme Regular socials & team events Ready to Lead with Purpose? If you're a Principal Engineer who loves shaping product direction, building great tech, and mentoring high-performing teams — this is your moment to lead from the front and make a difference. Message me for a confidential chat or send over your CV — let’s talk.