Founding/Lead Engineer | Innovative Fintech Infrastructure (EU)
Job title: Founding/Lead Engineer
Company: Innovative Fintech Infrastructure
Location: Remote (Europe, GMT ±2h) or relocation to France/UK
Tech Stack: Elixir (backend), React, TypeScript, Next.js (frontend), Flutter (mobile), Docker, Kubernetes, Grafana, Loki, Tempo, Prometheus, DigitalOcean, AWS, PostgreSQL
Join the founding team to build an embedded finance platform for the UK/EU, with global expansion plans. Work with a proven team (ex-PwC, Solaris, SumUp, Visa, SAP) and own the tech from day one.
As a Founding Engineer, you will scale and build our core banking engine and payment infrastructure.
- Design and develop high-performance APIs for efficient request and data handling;
- Build a data pipeline for real-time compliance checks using financial data;
- Take end-to-end ownership of tasks: from requirements and architecture to testing, rollout, and maintenance;
- Maintain and scale our Card Issuing and Open Banking platform;
- Collaborate with frontend, product, and UX teams to deliver seamless solutions.
- Own payment integrations with leading UK/EU providers and direct integrations with Visa/Mastercard.
- Lead technical projects with Visa & Mastercard’s fintech services;
- Build infrastructure for 100,000+ monthly transactions from day one;
- Scale solutions across multiple countries and currencies using Open Banking;
- Securely handle sensitive financial data.
- Remote work or relocation to France/UK;
- Ownership of the core product - your code will process millions in payments monthly;
- The opportunity to work with a top-tier team of fintech experts;
- A direct line to the founders - your ideas go live in days, not months;
- The chance to build and lead your own backend team as we scale;
- The ability to define our technical culture - set the standards, not follow someone else’s playbook.
- 5+ years building fintech/lending/banking backends (not crypto and blockchain);
- Experience with high-throughput transaction processing systems;
- Proficiency in PostgreSQL and data pipeline architecture;
- Understanding of financial systems and risk decisioning;
- Fluent in both Russian and English.
- Elixir experience (or similar languages like Erlang, Java, Python, Go);
- Experience at companies like Revolut, Wise, Monzo, Curve, or BNPL/lending fintechs;
- Familiarity with UK/EU Open Banking APIs (Salt Edge, Nordigen, Tink);
- Scaled consumer products to 100k+ users;
- Experience with UK & EU payment systems;
- Former founding engineer with 0→1 journey experience;
- Russian and English - fluently in both.
- Own the core product - your code will process millions in payments monthly;
- Founding engineer equity - real ownership in a high-growth startup;
- Direct access to founders - ship ideas to production in days, not months;
- Build your team - hire and lead the backend team as we scale;
- Work with fintech/banking experts and a strong marketing team;
- Shape the technical culture - define how we build, not follow someone else’s playbook.