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.ResponsibilitiesThis role is responsible for end-to-end delivery of the solution, ensuring readiness across development, integration, testing, and production deploymentDesign, develop, enhance program UX capabilities to support various partners to be onboard to the program ecosystemImplement secure integration patterns to support frontend-to-server and server-to-server integration with multiple partnerApply secure development practices, including secrets management, vulnerability management, threat modelling inputs, and secure-by-default designsBuild and maintain automated quality controls: unit tests, API contract tests, integration tests, CI/CD quality gates, Terraform deployment codeMonitor and troubleshoot production issues, perform root cause analysis, and contribute to operational runbooks/SLAsProactive collaboration to lead identify and escalating impediments or risks that require attention to keep end-to-end delivery on trackPerform other software engineering related duties as assignedRequirementDegree in Computer Science, Information Systems, Engineering, or a related fieldMinimum 8 years hands-on experience in mobile development (iOS and Android) delivering production-grade mobile UI/UX with multiple integration serviceStrong experience with iOS (Swift) with WebView bridging concepts and Android (Kotlin/Java)Strong experience with AWS-native systems and operationFamiliarity with CI/CD pipelines and tools such as Jenkins / BitbucketStrong experience with API Gateway / ALB, ECS/Fargate, RDS, S3, CloudWatch/CloudTrail, WAF (would be an advantageousSolid understanding of API security patterns and implementation: request signing (HMAC/signature validation), Authentication, nonce/timestamp anti-replay, idempotency design, secure secret handlingGood understanding of open-source libraries, their usage and vulnerability managementStrong 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.