Senior Software Engineer (Backend): Layer 1 Crypto Payments

BVNK is a company founded in 2021 focused on accelerating global money movement by building stablecoin-native infrastructure that enables businesses to move value instantly across borders and networks. The company has global licenses and Tier 1 bank partnerships, facilitating billions in transactions for enterprise clients such as Worldpay, Deel, LianLian Global, and Rapyd. BVNK operates globally with a diverse team across EMEA, North America, and APAC, and has strategic investments from Visa, Coinbase Ventures, and others. The company has been recognized by Newsweek and LinkedIn as a top global workplace and startup.

• 5+ years of experience as a backend software engineer with proficiency in Java, Kotlin, or similar JVM-based languages.
• Experience designing, building, and operating microservices in distributed systems.
• Solid understanding of relational databases like PostgreSQL and event-driven architectures such as Kafka, SQS/SNS.
• Experience with cloud platforms including AWS, GCP, or Azure.
• Experience with containerization and orchestration technologies such as Docker and Kubernetes.
• Familiarity with infrastructure-as-code concepts and modern software delivery practices (CI/CD).
• Experience with observability and reliability tooling including logging, metrics, tracing, and performance optimization.
• Comfortable working with Jira, Confluence, and Git-based workflows.
• Strong communication skills to explain technical concepts to technical and non-technical stakeholders.
• Practical problem-solving approach considering tradeoffs and avoiding over-engineering.

Nice to have:

• Experience with blockchain technologies, cryptocurrency infrastructure, or digital asset custody systems.
• Exposure to stablecoin payments, on-chain transaction processing, or multi-chain infrastructure.
• Understanding of key management, wallet architecture, or self-custody patterns.
• Experience integrating with blockchain node providers and on-chain screening or compliance tools.
• Knowledge of domain-driven design and hexagonal architecture patterns.
• Experience in fintech, payments, or other high-availability transactional systems.
• Experience working in high-growth or fast-scaling technology environments.
• Contributions to engineering strategy, hiring, or scaling initiatives.

• Design, develop, and maintain high-performance backend services for blockchain integrations, digital asset custody, and on-chain transaction processing.
• Build and evolve integrations with blockchain networks, crypto providers, and custody infrastructure supporting multi-chain, multi-asset operations.
• Contribute to the architecture and evolution of the Layer1 platform ensuring reliability, security, and data integrity.
• Build and maintain APIs supporting the full digital asset lifecycle including address generation, deposits, withdrawals, consolidation, and balance management.
• Drive improvements to system observability, performance, resilience, including monitoring, alerting, and incident response.
• Collaborate closely with product, design, and engineering squads to deliver high-impact features.
• Participate in code reviews, architectural discussions, and technical design sessions to uphold engineering standards.
• Mentor peers, share knowledge, and champion best practices.
• Participate in an out-of-hours on-call rotation.