Senior Engineer, API & Middleware Development (Java / WSO2)
Oversea-Chinese Banking Corporation Limited2 months ago
Singapore, SingaporeSenior
Responsibilities
- Lead the design, development, maintenance, architecture, and governance of enterprise APIs, microservices, and system integrations.
- Provide technical leadership, mentoring, code reviews, solution reviews, and guidance to engineering teams.
- Develop payment services covering initiation, validation, clearing, settlement, reconciliation, reporting, and payment operations.
- Implement secure, highly available, fault-tolerant, resilient, and performance-optimized services across on-premises and AWS environments.
- Apply API security and lifecycle practices including OAuth2, JWT, mutual TLS, authentication, authorization, and API versioning.
- Lead integrations using APIs, middleware, messaging, and event-driven technologies including Kafka and IBM MQ.
- Drive monitoring, observability, logging, alerting, performance tuning, capacity planning, and disaster recovery.
- Lead root cause analysis, problem resolution, production support, and continuous improvement initiatives.
- Prepare architecture diagrams, API specifications, design documents, operational runbooks, and support procedures.
- Use and govern AI-assisted engineering tools for development, testing, troubleshooting, monitoring, and operational support.
Requirements
- Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related discipline.
- 8+ years of hands-on software engineering experience delivering enterprise-scale applications and integration solutions.
- At least 5 years of payments-domain experience covering payment initiation, processing, clearing, settlement, reconciliation, and operations.
- Strong Java, Spring Boot, Spring Cloud, API, and microservices development experience.
- Hands-on experience with WSO2 API Manager, WSO2 Enterprise Integrator or Micro Integrator, and API Gateway implementations.
- Experience with API lifecycle management, API governance, service design, API security, RESTful services, SOAP services, JSON, XML, and OpenAPI/Swagger.
- Experience with cloud-native application development and deployment, preferably on AWS, using Docker and Kubernetes.
- Experience with event-driven and messaging architectures using Kafka, IBM MQ, or similar platforms.
- Understanding of payment standards and protocols including ISO 20022, SWIFT, and real-time payment frameworks.
- Experience with observability, monitoring, logging, performance management, and resiliency for mission-critical systems.
- Familiarity with DevSecOps and CI/CD toolchains including Jenkins, Bitbucket, Jira, Confluence, SonarQube, and automated testing frameworks.
- Experience leading technical teams, mentoring engineers, driving project delivery, and influencing architecture and engineering standards.
- Preferred qualifications include banking or financial-services experience, knowledge of payment schemes such as FAST, PayNow, GIRO, ACH, RTGS, and instant payments, relevant AWS, Java, WSO2, API Management, or Payments certifications, and experience with AI-assisted engineering transformation.
Benefits
- Competitive base salary.
- Holistic, flexible benefits to suit different lifestyles.
- Community initiatives.
- Industry-leading learning and professional development opportunities.
- Wellbeing, growth, and career development support.
- Equal-opportunity and fair-employment practices based on ability, culture, and values.
Tech Stack
Categories
About Oversea-Chinese Banking Corporation Limited
Oversea-Chinese Banking Corporation (OCBC) is a Singapore-headquartered bank founded in 1932 that provides consumer, corporate, investment, and transaction banking, plus wealth and private banking, insurance, asset management, and stockbroking. It serves retail customers, SMEs, and large enterprises across key markets including Singapore, Malaysia, Indonesia, and Greater China. OCBC is publicly listed on the Singapore Exchange and operates subsidiaries such as Bank of Singapore, Great Eastern, Lion Global Investors, OCBC NISP, and OCBC Wing Hang.