CareerPlan

Senior Engineer, API & Middleware Development (Java / WSO2)

Singapore, Singapore, SGFull-time2026-10-24 → 2026-11-10

Core

Design, develop, and maintain enterprise-grade APIs, microservices, and payment processing systems for a leading Asian bank.

Role type

Senior IC API & Middleware Engineer (Java/WSO2)

Builds

RESTful APIs, microservices, payment services, and system integrations

Domain

Banking / Financial Services / Payments

Required skills

Java, Spring Boot, WSO2 API Manager, WSO2 Enterprise Integrator, RESTful API design, microservices architecture, payment processing, Kafka, IBM MQ, AWS, Docker, Kubernetes, OAuth2, JWT, mTLS, ISO 20022, SWIFT

Preferred skills

AI-assisted engineering tools, observability, performance tuning, disaster recovery

Technologies

Java, Spring Boot, WSO2, Kafka, IBM MQ, AWS, Docker, Kubernetes, OAuth2, JWT, mTLS

Responsibilities

Lead design and development of enterprise APIs and microservices; Provide technical leadership and mentorship to engineering teams; Partner with cross-functional teams to translate business requirements into scalable solutions; Drive architecture and governance of payment services; Ensure adherence to API security and lifecycle management standards; Oversee integration initiatives using messaging technologies; Champion application reliability through monitoring and observability; Conduct code reviews and root cause analysis; Prepare technical artifacts and support procedures.

Seniority

Senior, hands-on IC with team leadership