Technical Consultant (OpenAPI, Microservices, Java)

Location: Singapore

Salary: S$8,500–S$11,000 per month

Company

Established multinational financial institution modernizing enterprise transaction platforms and digital payment ecosystems.

What you will do

• Lead technical delivery from solution design and interface contracts through system integration and production cutover.
• Define OpenAPI specifications, sequence flows, state machine models, and event-driven communication schemas.
• Design orchestration workflows for account management, transaction validation, entitlement checks, and exception routing.
• Align core banking ledgers, security frameworks, and risk management systems with cross-functional stakeholders.
• Design integration and user acceptance testing scenarios to ensure operational readiness and reliability.

Requirements

• 10 years of experience in systems analysis, microservices integration, or software architecture within enterprise financial services.
• Bachelor's degree in Information Technology.
• Strong expertise in microservices design, RESTful APIs, OpenAPI standards, and event-driven architectures using Kafka.
• Hands-on Java backend development experience and practical knowledge of distributed ledger concepts or digital asset frameworks.
• Understanding of enterprise integration patterns, OAuth2, mTLS, and transactional compliance controls.
• Strong communication and stakeholder engagement skills for alignment with regulatory and business standards.

Culture & Benefits

• Full-time contract position.
• Medical insurance and leave benefits.
• Work focused on modernizing financial transaction and digital payment infrastructure.

Hiring process

• Apply online using the apply button.
• For more information, contact Naveen Vasudevan.