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Java Developer at OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD – Singapore | Jobyssey

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Java Developer

Java Developer

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD · Singapore · 5 days ago

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Employment: Contract
Category: Software engineering
Experience: 6+ years

api api-gateway api-security authentication automation aws bitbucket ci-cd cloudtrail cloudwatch ecs fargate

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Degree in Computer Science, Information Systems, Engineering, or a related field.
Minimum 6 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).
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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.
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