Job title: Technical Lead (Hands-on) – TypeScript / React Native – Fintech
Workplace type: Remote (UK) with occasional London travel
Location: United Kingdom
Employment type: Full-time, permanent
Seniority: Mid-Senior level
Pay range: £130,000 – £150,000 + benefits
Lead a new product as its technical co-founder, inside a fully licensed UK digital bank.
Gravitas is partnering with a fast-growing UK digital bank that is building smarter wealth products for the mass-affluent market. It has a banking licence, investment, and thousands of existing customers. Now it wants hands-on technical leaders to build what comes next.
3 positions across 3 product lines
Each product line works like a startup inside the bank, led by two people:
▸ a senior Product Lead, usually a former founder or CEO
▸ you, the Technical Lead and the product’s “mini CTO”
Together you own the direction, the decisions and the results. Success means a product in market that customers pay for. The more value your product creates, the more investment it gets to grow.
The three product lines are at different stages, from scaling an established product with its own engineering team to building from zero to one. We’ll match you to the one that fits your background and goals best.
THE ROLE
This is a hands-on technical leadership role, not a people-management role. You’ll spend most of your time building, reviewing and improving code. The team works AI-first, so much of that code starts life in AI tools, and your judgement decides what goes to production.
What you’ll own
▸ The whole system. You own architecture and delivery across the database, back-end services, AWS infrastructure and the React Native mobile app.
▸ Mobile quality. You set the standard for React Native architecture, performance and code quality, and guide mobile engineers on how good mobile is built.
▸ Production. You keep systems reliable, secure and observable, and you get involved when something breaks.
▸ Security. You build identity and access management, authentication and least-privilege access into everything the team ships.
▸ Engineering standards. You set the bar for small, frequent releases, disciplined testing and reliable delivery, across in-house engineers and an external software partner.
▸ Partner management. You review supplier work critically, push back on poor decisions, and keep the relationship productive.
▸ Commercial trade-offs. You decide what ships now, what waits, and how today’s shortcuts get fixed later. You choose the fastest route to revenue that is still safe.
▸ Senior communication. You explain progress, risks and decisions to the CEO and the board, clearly and in a few sentences.
WHAT YOU’LL BRING
Essential
▸ Strong commercial TypeScript experience. This is essential.
▸ Strong React Native experience. This is also essential. You don’t need to be a pure mobile engineer, but you must be able to lead mobile work and judge mobile architecture with confidence.
▸ Experience owning a production system end to end: back end, cloud infrastructure and the mobile app, not just the app layer.
▸ Production experience on AWS: the core services, best practice, and the trade-offs between approaches.
▸ Real production incident experience, including incident response and disaster recovery.
▸ A strong grasp of security basics: IAM, authentication, least-privilege access.
▸ An AI-native way of working. You use tools such as Claude Code or Cursor every day and know how to review and harden AI-written code.
▸ Hands-on technical leadership. You set direction and still write code.
▸ Clear, concise communication. You can explain a complex system to a non-technical executive in three sentences.
▸ A commercial, builder’s mindset. You run the quickest experiment that answers the question, ship what works, and know exactly where the gaps are.
Highly desirable
▸ Full-stack TypeScript: Node.js on the back end and React Native on mobile. This is the sweet spot.
▸ Experience in a UK fintech, neobank, lender, payments or wealth business, or another regulated industry
▸ Hands-on work with core financial systems such as ledgers, payment flows (including idempotency), lending or savings
▸ Experience at a high-performing product company or a fast-scaling startup
▸ A zero-to-one or early-hire background
▸ Experience with Java, Kotlin, Python or Go. The bank hires for engineering judgement rather than one language.
WHAT GOOD LOOKS LIKE
The people who do well here usually have:
▸ a background in high-performing engineering teams
▸ concrete results they can put numbers on, such as revenue, launch speed or scale
▸ ownership of how software gets released and kept running, not just how it gets written
▸ the ability to switch between going deep on a technical problem and talking with the board
THE PACKAGE
✔ £130,000 – £150,000 base + benefits
✔ UK-based and largely remote: 1–2 weeks in London when you join, then roughly one visit per quarter
✔ Real ownership: a product to run, with a senior product partner and bank backing
✔ An AI-first engineering culture
✔ A fast process with no take-home test
THE PROCESS
Three conversations, scheduled around you, with decisions in days. At least one stage is in person.
1️⃣ Leadership: your leadership style, how you use AI, the engineering vision, and your career goals
2️⃣ Technical: a discussion with fellow tech leads about systems you’ve built, architecture, security and incidents. There’s no coding test.
3️⃣ Product: a conversation with the Product Lead you’d partner with, about how you’d build and run the product together
The bank aims to make offers before Christmas.
INTERESTED?
Apply here or message Boyan Anthony at b.anthony@gravitasgroup.com for a confidential conversation. We’re happy to talk through which product line suits you best.