BVNK - Senior Software Engineer (Backend): Cards

• Design and implement card platform features end-to-end - from tokenization and sensitive card data handling to transaction enrichment and settlement workflows • Build and maintain integrations with card issuers and payment processors • Architect systems spanning multiple services, ensuring scalability, security, and PCI compliance • Own features and projects from inception to completion, breaking down complex domains into deliverable work items • Drive cross-team technical initiatives around shared libraries, patterns, and infrastructure • Actively review code across the team, providing constructive and in-depth feedback • Contribute to our engineering culture by mentoring teammates and setting quality standards • What we need from you: • 5+ years experience as a Backend Engineer, preferably in FinTech or payments • Expertise in Java and Spring Boot • Experience building and maintaining APIs and services in a microservices architecture • Strong understanding of card payments, issuing, or transaction processing. • Enthusiasm for adopting AI-assisted development tooling (e.g, Claude Code, AI code review agents) to accelerate delivery and improve code quality across the squad. • Ability to self-direct work and scale from well-scoped tasks to multi-sprint initiatives • Excellent problem-solving skills, comfortable working independently or collaboratively across squads • Experience with containerisation and orchestration technologies including Docker and Kubernetes. • Experience with code review as a tool for mentoring and raising team-wide standards • Good written and verbal communication skills • Familiarity with crypto/fiat payment rails is a plus • Open to participating in an out-of-hours on-call rota • What you can expect from us: • Fair and competitive salary at every stage of your growth