Senior Software Engineer (Backend): Cards
New
B
BVNKFinTech / Payments
South Africa, Bulgaria, Poland and SpainFull-TimeSenior
Salary not disclosed
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Job Details
- Experience
- 5+ years
- Required Skills
- DockerJavaKubernetesSpring BootMicroservices
Requirements
- 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)
- Ability to self-direct work and scale from well-scoped tasks to multi-sprint initiatives
- Excellent problem-solving skills
- 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
Responsibilities
- 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
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