Senior Backend Engineer - Wallet Platform (Remote)

BVNK; United States; Hybrid; USD 85,000 - 105,000; Full time

Benefits offered by this job

Hybrid/Remote policy

Flexible working hours

Travel to BVNK offices worldwide

Competitive salary

Open and creative environment

Job summary

BVNK is hiring a talented Software Engineer for the Wallets subdomain within the Ledger domain. You will own wallet lifecycle services across fiat and crypto wallets, collaborating with multiple domains to ensure reliable, scalable, and compliant wallet infrastructure.

You will work in a remote-friendly setup with on-call duties, on-call rotations, and a strong emphasis on operational excellence. A competitive salary and growth opportunities accompany your contribution to BVNK's mission in the

Qualifications

• 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.

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.

Skills

Java/Kotlin

Spring Boot

Distributed systems

Microservices

Kafka/SQS

Relational databases

Redis

REST APIs

Domain-driven design

Hexagonal architecture

CI/CD

Observability

Tools

Grafana

Prometheus

Micrometer

Job description

BVNK is hiring a talented Software Engineer for the Wallets subdomain within the Ledger domain. You will own wallet lifecycle services across fiat and crypto wallets, collaborating with multiple domains to ensure reliable, scalable, and compliant wallet infrastructure.

You will work in a remote-friendly setup with on-call duties, on-call rotations, and a strong emphasis on operational excellence. A competitive salary and growth opportunities accompany your contribution to BVNK's mission in the