System Analyst: Open API & Microservices (Java)

Innova Digital Solutions Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Innova Digital Solutions Pte Ltd in Singapore seeks a System Analyst with strong Open API and Microservices background. You will design and deliver API-driven solutions using Java, REST/JSON, and modern integration patterns.

The role focuses on end-to-end technical delivery, from specifications to rollout, with emphasis on security, scalability, and operational readiness across Banking/Payments domains. You'll work with cross-functional teams and align with risk, compliance, and platform

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 10–11 years of experience in system analysis and design, with Open API and Microservices.
• Strong programming skills in Java and familiarity with Spring/Hibernate.
• Proficient in RESTful API design and implementation.

Responsibilities

• Technical Delivery & Systems Analysis
• Own BI FAST RFP, eMandate and Direct Debit delivery across requirements → solution design → integration → testing → rollout.
• Produce engineering ready specifications: API specs (REST/JSON), OpenAPI/Swagger definitions; Microservices contracts; event schemas; sequence diagrams; mapping specs; error models
• Define end to end orchestration flows for RFP initiation, mandate lifecycle events, and Direct Debit presentment, validation, debit and return
• Specify robust pre processing logic: customer/account validation; entitlement and authorisation checks; funds availability; fraud/AML/sanctions gating; limits; idempotency, retry and timeout handling
• API & Microservices Architecture; reuse existing components: Payment initiation, validation/entitlement, fraud adapters; core banking and ledger integration patterns
• Ensure microservices follow engineering principles: loose coupling; async event-driven integration; high availability; observability
• User Journeys, Entitlements & Authorisation; align journeys with per transaction limits and maker-checker workflows
• Coordinate with channel teams for parity across Mobile, Internet Banking, H2H, and API Banking
• Integration & Platform Engineering; design integration between Payment Hub/RFP Orchestrator, BI FAST gateway, mandates, direct debit engines; core banking and AML
• Use existing microservices blueprints for error propagation, schema validation, event lifecycle management, callback patterns
• Scheme, Regulatory & Risk Alignment; translate scheme rules into validation rules, mappings, and reverse workflows
• Embed mandatory controls: AML/CFT, fraud monitoring, non-repudiation, TRM and cybersecurity
• Testing, Deployment & Operational Readiness; lead SIT/UAT/E2E tests for RFP, mandate, direct debit; ensure monitoring and runbooks
• Support scheme certification and phased deployment; measure success by high quality delivery and strong reuse of microservices

Skills

Open API

Microservices

Java programming

REST API design

SQL NoSQL

Problem solving

Education

Bachelor's degree in Computer Science/Information Technology

10–11 years of system analysis experience

Tools

Spring

Hibernate

Docker

Kubernetes

Job description

Innova Digital Solutions Pte Ltd in Singapore seeks a System Analyst with strong Open API and Microservices background. You will design and deliver API-driven solutions using Java, REST/JSON, and modern integration patterns.

The role focuses on end-to-end technical delivery, from specifications to rollout, with emphasis on security, scalability, and operational readiness across Banking/Payments domains. You'll work with cross-functional teams and align with risk, compliance, and platform