PaymentGenes are supporting a high-growth fintech company is building next-generation financial infrastructure focused on enabling fast, efficient international funds distribution for businesses. Currently midway through an MVP build, the team is looking to hire a Senior Full Stack Engineer to join at a critical stage of product development.
You will work closely with a small, experienced engineering team to help design and deliver a regulated financial platform from the ground up, with a strong emphasis on performance, scalability, and security.
The Opportunity
This role offers end-to-end ownership across the stack, with involvement in architecture, implementation, and building systems designed for compliance within a regulated environment. The team is focused on creating robust, auditable, and scalable systems from day one.
Key Responsibilities
- Design and build end-to-end features across frontend and backend
- Contribute to transaction processing and ledger systems
- Develop event-driven services using modern architectural patterns
- Build real-time functionality using WebSockets
- Integrate with third-party providers (e.g. identity verification, payments)
- Support fraud prevention and monitoring capabilities
- Contribute to infrastructure and CI/CD pipelines
- Ensure systems are secure, resilient, and compliant
Technology Stack
- TypeScript across the stack
- Modern backend frameworks (Node.js ecosystem)
- React (TypeScript) and contemporary UI libraries
- Relational and NoSQL databases (e.g. PostgreSQL, DynamoDB)
- Cloud-native infrastructure (AWS or similar)
- Event-driven architecture
- Monorepo setup and CI/CD pipelines
What We’re Looking For
- 5–7 years of software engineering experience
- Strong full stack development experience with TypeScript
- Experience building and scaling production systems
- Solid understanding of APIs and distributed systems
- Experience with relational databases
- Awareness of security and compliance considerations
- Comfortable working in a fast-paced, startup environment
What’s on Offer
- Hybrid working model (London-based)
- Early-stage opportunity with real ownership and impact
- Strong engineering culture and standards
- Competitive benefits package including pension
- Dedicated time for learning and development
- Collaborative, low-ego environment