Senior Software Engineer (Backend): Ledger - Wallets

About the role

We believe the next generation of financial services will be powered by stablecoins. Founded in 2021, our mission at BVNK is to accelerate global money movement. We're building stablecoin-native infrastructure so businesses can move value instantly across borders and networks. With global licenses and T1 bank partnerships, we facilitate billions in transactions for enterprise clients like Worldpay, Deel, LianLian Global, and Rapyd. Our technology is transforming how businesses operate globally by eliminating payment delays, reducing costs, and unlocking trapped capital. 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. In 2025, we secured strategic investment from Visa, following our $50 million Series B with Haun Ventures, Coinbase Ventures, Scribble Ventures, DRW Venture Capital, Avenir, and Tiger Global. With the backing of these leading investors, we're accelerating our growth - and we're looking for smart, ambitious people to help us build the future of financial services. We're incredibly honored to have made Newsweek's list of The Top 100 Global Most Loved Workplaces three years running (most recently in 2025) and to have been recognised by LinkedIn as one of the Top 20 Startups in the UK in 2024. Location: We offer a Hybrid/Remote working policy. Function: Engineering We're looking for a talented Software Engineer to join the Wallets subdomain within BVNK's Ledger domain. The Wallets subdomain is responsible for the complete lifecycle of customer wallets: creation, activation, blocking, suspension, and termination; across fiat and crypto, for direct merchants, embedded partners, and their underlying customers. This is high-impact, foundational work. As BVNK scales into new products and new entity structures, the Wallets subdomain is at the centre of it all: every new product capability, every new customer type, and every new custody model needs a wallet representation that is accurate, compliant, and scalable. You'll be building the infrastructure that makes all of this possible. Our product and engineering organisation is split into small autonomous squads empowered to own their problem space. You'll be expected to form strong opinions and execute in a fast but sustainable way, advocating for the simplest solution that achieves the outcomes our customers are looking for. Key Areas of Responsibilities: Own and evolve the Wallet - Design and implement services that manage the full wallet lifecycle: creation, activation, blocking/unblocking, suspension, and termination across fiat and crypto wallets for all customer types. Integrate across domains - Collaborate internally with a wide range of domains - Digital Assets, Fiat, Onboarding, Billing etc. Design for reliability and horizontal scale - Build services following BVNK's hexagonal architecture patterns. Contribute to HPA tuning, DLQ handling, and performance optimisation for production workloads. Own operational excellence - Participate in on-call rotations, incident response, and production monitoring for wallet-critical services. Ship with quality - Write well-tested, well-documented code. Contribute to architecture reviews and technical design submissions. Uphold BVNK's microservices standards. What we need from you: 5+ years of backend engineering experience in Java/Kotlin with Spring Boot. Strong distributed systems fundamentals - experience building microservices with event-driven architectures (Kafka, SQS), relational databases (MySQL/PostgreSQL), and caching (Redis). Experience with account or wallet systems - you've built or maintained systems that manage account/wallet lifecycle, state machines, or financial entity management where correctness and auditability are non-negotiable. Solid grasp of domain-driven design and hexagonal architecture - you can model complex domains cleanly, define bounded contexts, and build services with well-defined boundaries and interaction modes. API design skills - experience designing and evolving RESTful APIs that serve both internal services and external customers, with attention to backwards compatibility and developer experience. Collaborative and proactive communication - you work effectively with product managers, operations teams, and cross-domain engineers. You're comfortable operating across time zones in a remote-first setup. Production ownership mentality - experience with on-call, incident response, and operational monitoring (Grafana, Prometheus, Micrometer). You take pride in the reliability of systems you build. Familiarity with CI/CD pipelines, infrastructure-as-code, and observability tooling. Open to participate in out of hours on call rota

Requirements

• Experience with multi-tenant architectures and tenant migration patterns.
• Background in embedded finance, BaaS, or payment platforms servi

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