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optimum solutions (singapore) pte ltd

Singapore / Global

Senior Java Developer

Job Description

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

Minimum 8 years hands-on experience in backend development delivering production grade systems(microservices, APIs, event processing, web-portal, production support).

Strong experience with AWS-native systems and operations (any of the following): o API Gateway / ALB, ECS/Fargate, RDS, S3, CloudWatch/CloudTrail, WAF o Familiarity with CI/CD pipelines and tools such as Jenkins / Bitbucket /Octopus / Terraform (or equivalents).

Experience in test automation and engineering best practices (unit tests, contract tests, integration tests)

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.

A self-starter who thrives in a fast-paced environment, able to make decisions and drive execution with minimal supervision.

Apply Now

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