Senior Software Engineer (Backend): Cards

About the Position

BVNK is the stablecoin-powered financial stack for enterprises. We're now part of Mastercard, and together we're building a network for every form of money – one that delivers more reach, more capability, and more choice.

We enable businesses to build financial products, unlock new markets, and move money in seconds across 130+ countries, with 40+ licenses for fiat and digital assets globally. Processing billions annually, we empower enterprises worldwide to send, receive, convert, and settle stablecoins and fiat seamlessly through a single integration.

We're looking for a talented Senior Software Engineer (Backend) to join our Cards team. Our goal is to build out a seamless card issuing and transaction platform that bridges crypto and fiat - enabling merchants to offer their customers instant access to funds through physical and virtual cards.

Location: We offer a Hybrid/Remote working policy.

FUNCTION: Engineering

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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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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., 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

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We Offer

• Fair and competitive salary at every stage of your growth
• Flexible working hours, with hybrid working at its heart
• A culture built on passionate, growth-minded people
• A flexible approach to holiday
• Opportunities to travel to our offices around the world
• An open and creative environment where you can help us define the future of BVNK, its culture, and its opportunity sets

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About the Company

BVNK is the stablecoin-powered financial stack for enterprises. We're now part of Mastercard, and together we're building a network for every form of money – one that delivers more reach, more capability, and more choice.

We enable businesses to build financial products, unlock new markets, and move money in seconds across 130+ countries, with 40+ licenses for fiat and digital assets globally. Processing billions annually, we empower enterprises worldwide to send, receive, convert, and settle stablecoins and fiat seamlessly through a single integration.

We're a diverse team spread across EMEA, North America, and APAC, with a shared belief that stablecoins are the new infrastructure layer for financial services, and that BVNK is at the forefront of this shift.

We're incredibly honored to have been recognized by:

• CNBC World's Top Fintech Companies (2026)
• FXC Intelligence Top 100 Cross-border Payment Companies (2026)
• Newsweek's The Top 100 Global Most Loved Workplaces (three years running, most recently 2025)
• LinkedIn as one of the Top 20 Startups in the UK (2025)