Backend Developer
Core
Design, build, and operate microservices powering core financial products including card issuing, authorization, credit lines, payments, and money movement.
Role type
Senior Backend Engineer (Fintech)
Builds
Microservices, event-driven integrations, and financial infrastructure for card issuing and payments.
Domain
Fintech / Financial Services
Deliverable
production ML models | product features
Required skills
Go, Java (Quarkus/Spring), Microservices, Distributed Systems, REST APIs, Event-driven messaging (Pub/Sub/Kafka), Cloud Infrastructure (GCP), Kubernetes, CI/CD, SQL/NoSQL (MongoDB/SingleStore), Reliability patterns (idempotency/reconciliation)
Preferred skills
Fintech/payments concepts (card authorization, ledgers, transfers, credit)
Technologies
Go, Java, Quarkus, Spring, Kafka, MongoDB, SingleStore, GCP, Kubernetes, Jenkins, GKE
Responsibilities
Design and maintain backend microservices; own services end-to-end from architecture to on-call; build event-driven and REST integrations; model and evolve data across dual-write flows; ship through CI/CD pipelines; instrument observability for production debugging; contribute to technical design docs and architecture.
Seniority
Senior, hands-on IC
