Java Backend Engineer (Payments Domain)

Key Responsibilities (Payments + Microservices Focus)

Design, develop, and maintain Java-based microservices supporting payment processing and orchestration.
Build REST/gRPC APIs and event-driven services for payment flows and downstream integrations.
Implement resilience patterns (timeouts, retries, circuit breakers, bulkheads) aligned to platform standards.
Use Service Mesh features (traffic management, mTLS, policy enforcement, observability) to improve reliability and security.
Engineer for performance and scale: throughput, latency, idempotency, concurrency, back-pressure, and safe retries.
Apply payments-grade controls: auditability, traceability, non-repudiation, and strong operational monitoring.
Collaborate with product, architecture, SRE/platform teams to deliver secure-by-design services on IKP.
Drive engineering excellence: code reviews, automated testing, CI/CD, and continuous improvement.
Strong hands-on Java (modern versions preferred) and microservices design.
Experience building services on IKP (or equivalent internal Kubernetes-based platform).
Solid understanding of Service Mesh concepts and implementation (traffic routing, mTLS, sidecars, service discovery).
Microservices patterns: DDD, API versioning, contract-first development, backward compatibility.
Data and messaging: Kafka (or equivalent), event schemas, exactly-once/at-least-once trade-offs, idempotency.
Observability: distributed tracing, metrics, structured logging (eg, OpenTelemetry patterns).

Required Technical Skills (Core) Preferred/Nice-to-Have (Common Adjacent Tech)

(Adjust to match your environment)

Spring Boot/Quarkus, Maven/Gradle
Containers & orchestration: Docker, Kubernetes
API tooling: OpenAPI/Swagger, API gateways
Security: OAuth2/OIDC, JWT, secrets management, mTLS
CI/CD: pipelines, automated quality gates, SAST/DAST
Testing: unit/integration/contract tests (eg, Pact), performance testing
Knowledge of payment processing concepts: STP, validation, enrichment, routing, reconciliation, exception handling
Familiarity with payment rails/standards: ISO 20022, SEPA, Faster Payments, ACH
Understanding of operational risk controls: limits, sanctions screening touchpoints, audit trails, and regulatory considerations.

Payments Domain Experience

Knowledge of payment processing concepts: STP, validation, enrichment, routing, reconciliation, exception handling
Familiarity with payment rails/standards: ISO 20022, SEPA, Faster Payments, ACH
Understanding of operational risk controls: limits, sanctions screening touchpoints, audit trails, and regulatory considerations.

Apply Now

Job Details