Software Engineer (React/Angular JavaScript Preferred)

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

Job Description

Design, develop, maintain, and support large-scale enterprise single-sign-on applications using Java with a strong focus on performance, availability, security, and resilience. Collaborate closely with architects, business analysts, and project managers to deliver robust and secure systems on schedule. Mentor junior developers, conduct code reviews, and contribute to best practices, process improvements, and overall system performance.

What will you do?

• Analyze business and technical requirements for Java-based applications.
• Design, develop, and implement enterprise single-sign-on solutions using Java frameworks and tools.
• Perform unit, integration, and system testing to ensure application quality and functionality.
• Troubleshoot and resolve issues across development, testing, and production environments.
• Collaborate with architects and analysts to ensure alignment with design and architecture standards.
• Ensure compliance with 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.

Qualifications

Due to security clearance requirements for government-linked projects, this position is open to Singapore Citizens only.

• Diploma or degree in Computer Science, Information Technology, or a related discipline.
• Experience working in government related projects.
• Experience in software development with full SDLC exposure.
• Strong proficiency in Java (11–21), Spring Boot, and the Spring Framework, with experience in modern relational databases (MSSQL, MySQL, RDS) and secure coding practices.
• Proficient in Linux and Windows shell scripting for application deployment across both environments.
• Hands‑on experience in system analysis, troubleshooting, and performance tuning.
• Skilled in development and CI/CD tools such as Git, Maven/Gradle, and Jenkins.
• Strong analytical and problem‑solving abilities.
• Good communication, teamwork, and collaboration skills.
• Self‑motivated with strong initiative and ownership.
• Service‑oriented with a customer‑focused mindset.
• Experience with Apereo CAS SSO, Singpass, Corppass, IdP, SAML2, and OIDC protocols.
• Knowledge of cloud platforms and container technologies (AWS, Azure, Kubernetes).
• Oracle Certified Professional (Java) – Preferred.