Job title: Founding Elixir Engineer – Building Innovative Fintech
Important: if you are a talented experienced Team Lead, please, apply, we are open to grow together
Salary range: Competitive salary + meaningful equity (funded late seed, preparing for launch in Q1 2026)
Qualifications or experience required: 5+ years of working full-time as a software engineer (exceptions can be made for the right candidate)
Remote job: Yes
Remote restrictions: Europe (GMT +/– 2h)
Remote work or relocation as an employee to France/UK
The Opportunity
Join the founding engineering team building an innovative solution Empay for embedded finance market (B2B2C) across the UK & EU with further expansion to other regions. The market is just opening up – perfect timing to build something new & massive. If you’ve ever wanted to see your code become the core of a real fintech infrastructure – this is it.
This is a true 0→1 opportunity: no endless meetings — just a clear mission, a strong founding team, and full ownership.
The Founders
Built by proven entrepreneurs: Experienced team in fintech & banking (PWC, Solaris, SumUp, Visa, Sap) with successful exits. Together, we bring deep expertise in building and scaling billion-dollar fintech & banking companies.
The Role
We need a brilliant backend engineer to scale & build our core banking engine and payment infrastructure.
You’ll Own:
* Creating payment integrations with UK & EU leading payment providers & Visa/Mastercard
* Designing and developing high-performance APIs for efficient request and data handling
* Building the data pipeline that turns financial data into instant compliance checks
* Maintain and scale Card issuing and loyalty platform
* Develop Payments functionality including routing, payment initiation and account management on Card issuing and loyalty platform
* Strong technical ownership for your tasks across all stages: understanding subject domain and requirements, solution design and architecture, integrations with internal and external services, software reliability and performance, testing, rollout and maintenance
* End-to-end software life cycle contribution including CI/CD, monitoring and alerts, production support of the solution
* Maintain strong collaboration with front-end development teams, Product and UX teams, and neighboring backends peers
Technical Challenges:
* Build for 100,000+ monthly transactions from day one
* Create a system that scales across multiple countries and currencies
* Design infrastructure that handles sensitive financial data securely
What We’re Looking For
Must-Haves:
* Minimum 5–6 years building fintech/lending/banking backends (more experience is awesome!)
* Strong Elixir experience with production systems at scale
* Experience with UK/European open banking platforms / APIs (Salt Edge, Nordigen/GoCardless, Tink)
* Built high-throughput transaction processing systems
* Experience with PostgreSQL and data pipeline architecture
* Understanding of financial systems and risk decisioning
Huge Plus:
* Worked at companies like Revolut, Wise, Monzo, Curve, or any BNPL/lending fintech
* Built consumer products that scaled to 100k+ users
* Experience with UK & EU payment systems
* Former founding engineer who’s seen 0→1 journey
What You Get
* Own the core product – your code will process millions in payments monthly
* Founding engineer equity – real ownership in a rocket ship, not 0.01% options
* Direct line to founders – your ideas ship to production in days, not months
* Build your own empire – hire and lead the entire backend team as we scale
* Work with the best team of fintech & big marketing experts
* Massive social impact & new fintech category
* Shape the technical culture – define how we build, not follow someone else’s playbook
Tech Stack
Backend: Elixir (modular monolith), PostgreSQL, Docker, Kubernetes
Infra & Monitoring: Grafana, Loki, Tempo, Prometheus
Cloud: DigitalOcean (potential transitioning to AWS)
Frontend: React / TypeScript / Next.js
Mobile: Flutter
Now backend is built on Elixir, but as a Founding Engineer you’ll have the autonomy to evolve the stack – if a certain microservice calls for Go or Python, that’s on the table.
Additional tech stack: React/TS/Next (Frontend); Flutter (Mobile).
Interview Process
Fast and transparent (total time: 1 week max):
* 30-min chat with founders (background + values & culture fit)
* Technical interview + short live coding
* Paid technical task (real problem we’re solving)
* Final decision within 48 hours