Mobile Application Developer

This is an exciting opportunity to contribute to high-impact projects in a fast-paced environment, delivering scalable and secure solutions that power Singapore's digital payment ecosystem.

Responsibilitie s

This role is responsible for end-to-end delivery of the solution, ensuring readiness across development, integration, testing, and production deployment

Design, develop, enhance program UX capabilities to support various partners to be onboard to the program ecosystem

Implement secure integration patterns to support frontend-to-server and server-to-server integration with multiple partner

Apply secure development practices, including secrets management, vulnerability management, threat modelling inputs, and secure-by-default designs

Build and maintain automated quality controls: unit tests, API contract tests, integration tests, CI/CD quality gates, Terraform deployment code

Monitor and troubleshoot production issues, perform root cause analysis, and contribute to operational runbooks/SLAs

Proactive collaboration to lead identify and escalating impediments or risks that require attention to keep end-to-end delivery on track

Perform other software engineering related duties as assigned

Requiremen t

Degree in Computer Science, Information Systems, Engineering, or a related field

Minimum 8 years hands-on experience in mobile development (iOS and Android) delivering production-grade mobile UI/UX with multiple integration service

Strong experience with iOS (Swift) with WebView bridging concepts and Android (Kotlin/Java)

Strong experience with AWS-native systems and operation

Familiarity with CI/CD pipelines and tools such as Jenkins / Bitbucket

Strong experience with API Gateway / ALB, ECS/Fargate, RDS, S3, CloudWatch/CloudTrail, WAF (would be an advantageous

Solid understanding of API security patterns and implementation: request signing (HMAC/signature validation), Authentication, nonce/timestamp anti-replay, idempotency design, secure secret handling

Good understanding of open-source libraries, their usage and vulnerability management

Strong communication skills and ability to collaborate effectively with cross-functional teams and strong analytical and engineering skills to synthesize information and present status clearly and effectively.