Senior Software Engineer (Backend): Ledger - Wallets

BVNK is a company founded in 2021 focused on building stablecoin-native infrastructure to accelerate global money movement. They serve enterprise clients such as Worldpay, Deel, LianLian Global, and Rapyd, facilitating billions in transactions. The company has global licenses and Tier 1 bank partnerships and is backed by strategic investors including Visa, Haun Ventures, Coinbase Ventures, Scribble Ventures, DRW Venture Capital, Avenir, and Tiger Global. BVNK operates with a diverse team across EMEA, North America, and APAC and offers a hybrid/remote working policy.

• 5+ years of backend engineering experience in Java/Kotlin with Spring Boot.
• Strong distributed systems fundamentals including building microservices with event-driven architectures (Kafka, SQS), relational databases (MySQL/PostgreSQL), and caching (Redis).
• Experience with account or wallet systems managing lifecycle, state machines, or financial entity management with correctness and auditability.
• Solid grasp of domain-driven design and hexagonal architecture to model complex domains and build services with well-defined boundaries.
• API design skills for RESTful APIs serving internal and external customers with attention to backwards compatibility and developer experience.
• Collaborative and proactive communication skills, comfortable working across time zones in a remote-first setup.
• Production ownership mentality with experience in on-call, incident response, and operational monitoring (Grafana, Prometheus, Micrometer).
• Familiarity with CI/CD pipelines, infrastructure-as-code, and observability tooling.
• Willingness to participate in out-of-hours on-call rota.

Nice to have:

• Experience with multi-tenant architectures and tenant migration patterns.
• Background in embedded finance, BaaS, or payment platforms serving B2B2C models.
• Familiarity with database migrations in high-throughput systems.
• Experience with dynamic validation engines or capabilities/feature-flag systems.
• Experience with stablecoin, crypto, or blockchain-adjacent products.

• Own and evolve the Wallet: design and implement services managing wallet lifecycle including creation, activation, blocking/unblocking, suspension, and termination across fiat and crypto wallets for all customer types.
• Integrate across domains by collaborating with Digital Assets, Fiat, Onboarding, Billing, and others.
• Design for reliability and horizontal scale by building services following BVNK's hexagonal architecture patterns and contributing to HPA tuning, DLQ handling, and performance optimization.
• Own operational excellence by participating in on-call rotations, incident response, and production monitoring for wallet-critical services.
• Ship with quality by writing well-tested, well-documented code, contributing to architecture reviews and technical design submissions, and upholding BVNK's microservices standards.