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Senior Java Developer

Optimum Solutions (Singapore) Pte Ltd

IslandwideContractS$7,000 – S$10,000/mo

Posted 3 Jul 2026

About this role

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.

What they're looking for

Collaborate With EngineersJenkinsCloudwatchBitbucket

About Optimum Solutions (Singapore) Pte Ltd

Industry: Information & communicationsSize: 1000Website ↗

Frequently asked questions

What does a Senior Java Developer at Optimum Solutions (Singapore) Pte Ltd do?

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 opera…

What skills does this Senior Java Developer role need?

Key skills for this role include Collaborate With Engineers, Jenkins, Cloudwatch, Bitbucket.

How much does a Senior Java Developer at Optimum Solutions (Singapore) Pte Ltd pay?

This role lists a salary of S$7,000 – S$10,000 per month.

Is this Senior Java Developer role remote, hybrid, or on-site?

The listing is based in Islandwide. Check the posting for remote or hybrid options.

How do I apply for this Senior Java Developer role?

You can apply directly on Optimum Solutions (Singapore) Pte Ltd's careers page. ApplyLah can tailor your résumé and cover letter to this exact role in seconds first.