Full Time Mobile Application Developer Jobs, in Optimum Solutions Pte Ltd - Maukerja

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.

Responsibilities

• 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

Requirement

• s:Degree in Computer Science, Information Systems, Engineering, or a related fiel
• d.Minimum 8 years hands-on experience in mobile development (iOS and Android) delivering production-grade mobile UI/UX with multiple integration servic
• esStrong experience with iOS (Swift) with WebView bridging concepts and Android (Kotlin/Jav
• a)Strong experience with AWS-native systems and operatio
• nsFamiliarity with CI/CD pipelines and tools such as Jenkins / Bitbuck
• etStrong experience with API Gateway / ALB, ECS/Fargate, RDS, S3, CloudWatch/CloudTrail, WAF (would be an advantageou
• s)Solid understanding of API security patterns and implementation: request signing (HMAC/signature validation), Authentication, nonce/timestamp anti-replay, idempotency design, secure secret handli
• ngGood understanding of open-source libraries, their usage and vulnerability managemen
• t.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 effectivel

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