Senior Java SSO Engineer - Performance & Security

United States Digital Space LLC; Singapore; On-site; SGD 60,000 - 100,000; Full time

Job summary

United States Digital Space LLC in Singapore is hiring a Java-focused engineer to design, develop and support enterprise SSO applications with a strong emphasis on performance, security and resilience.

You will mentor juniors, perform code reviews, and contribute to standard practices, process improvements, and overall system performance across development, test, and production environments.

Qualifications

• Diploma or degree in Computer Science, Information Technology, or a related discipline.
• Experience with government-related projects or security clearance requirements.
• Full SDLC exposure with Java and related frameworks.
• Proficient in Java (11–21), Spring Boot and Spring Framework.
• Experience with relational databases and secure coding practices.
• CI/CD tools and scripting for deployment across Linux/Windows.

Responsibilities

• Analyze business and technical requirements for Java-based applications.
• Design, develop, and implement enterprise SSO solutions using Java frameworks.
• Perform unit, integration, and system testing to ensure quality.
• Troubleshoot issues across development, testing, and production environments.
• Collaborate with architects and analysts to align with standards.
• Ensure coding standards, quality practices, and security guidelines.
• Prepare and maintain technical documentation and specifications.
• Support system deployment, releases, and production operations.
• Conduct peer code reviews to ensure high-quality deliverables.

Skills

Java (11–21)

Spring Boot

Spring Framework

Linux shell

Windows shell

CI/CD

Git

Maven/Gradle

Jenkins

SQL databases

Clouds (AWS/Azure)

Kubernetes

Problem solving

Teamwork & communication

Security & compliance

Education

Diploma or degree in Computer Science/IT

Tools

Git

Maven/Gradle

Jenkins

MSSQL

MySQL

RDS

AWS

Azure

Kubernetes

Job description

United States Digital Space LLC in Singapore is hiring a Java-focused engineer to design, develop and support enterprise SSO applications with a strong emphasis on performance, security and resilience.

You will mentor juniors, perform code reviews, and contribute to standard practices, process improvements, and overall system performance across development, test, and production environments.