Senior Software Engineer

👩 💻 Software Engineers (Mid & Senior Level)💰 £70,000 - £115,000 + shares (DoE) 📍 London / hybrid - 3 days per week in the office🚀 Fintech - Series A fundedThis is a rare opportunity. Early-stage enough to have real impact. Late enough to have real traction. The window where joining actually makes a difference.Company: A Series A fintech backed by second-time founders who've previously raised and sold. They're building technology that sits inside critical financial infrastructure - already trusted by major Tier 1 banks, with US expansion underway. The Role: This is a backend-heavy engineering role for someone who thinks like a product owner, not just an executor. You'll work across the stack and take real ownership end-to-end, from idea to production.Key responsibilities:Build and own backend services across the core platformWork across frontend and infrastructure when needed - polyglot mindset valuedTake features from requirements through to production with real autonomyPush back on requirements, think about the customer, and understand the bigger pictureContribute to architecture decisions as the team and platform scaleStack: Java, GoLang, Python - React, TypeScript, Next.js - Terraform, GCP, GitHub Actions. AI? YES - They're shipping LLM-powered products👉 Exact tech match less important than strong backend fundamentals and a polyglot mindset.You'll be a good fit if you...Have 3+ years of backend engineering experienceHave worked at a startup or owned something from zero to productionAre intellectually curious - you ask questions, dig into problems, and care about the whyWant autonomy and responsibility, not just tickets💚 Why join?🎯 Real ownership Small team, big responsibility. You'll work directly with the founders and have genuine influence over what gets built and how.🚀 Exceptional founders Second-time founders with a proven track record. They've done this before and know how to build a company that lasts.📈 Equity that could matter Strong equity options from day one.🌍 Expanding fast Already live with major UK banks, US expansion underway. This is a business with real momentum.🤖 Working with AI & latest tech They're actively shipping LLM-powered features into production - and there's real appetite to go further.The Package:Mid-level: £70k–£90k | Senior: £90k–£115k base (DoE)Share optionsBupa private health cover25 days holiday + pensionFarringdon, London - hybrid, 3 days per week in the office (team lunches on Fridays!)Interview Process:Intro call with a founder or senior team memberTech test and technical interviewOnsite - meet the team and learn more about the role