Java Backend Developer

Role Description

At UST, we help the world’s best organizations grow and succeed through transformation. Bringing together the right talent, tools, and ideas, we work with our client to co-create lasting change. Together, with over 30,000 employees in 30+ countries, we build for boundless impact—touching billions of lives in the process. Visit us at www.ust.com

Job Description: Java Backend Developer

Job Title: Java Backend Developer

Location: Trivandrum / Pune

Experience: 5–10 Years

Mandatory Skills

• Java
• Spring Boot
• Microservices
• AWS / GCP

Roles & Responsibilities

• Design, develop, and maintain scalable backend services using Java and Spring Boot.
• Design and develop microservices-based applications following industry best practices.
• Build and document RESTful APIs, including request validation, error handling, API versioning, and documentation.
• Implement authentication and authorization using Spring Security, including OAuth 2.0/OIDC, JWT, and Role-Based Access Control (RBAC).
• Apply secure coding practices, including input validation, secure session handling, and protection against OWASP Top 10 security risks.
• Design data models and develop efficient database queries using JPA/Hibernate and relational databases.
• Write and maintain unit and integration tests using JUnit and Mockito, including tests for security configurations.
• Participate in peer code reviews and contribute to improving coding standards and overall code quality.
• Troubleshoot application defects and performance issues and contribute to Root Cause Analysis (RCA).
• Collaborate closely with frontend, QA, DevOps, and other engineering teams throughout the software development lifecycle.
• Contribute to CI/CD pipelines, Docker containerization, and application deployment processes.
• Support the deployment and operation of applications on AWS and/or GCP cloud environments.

Technical Skills

Core / Mandatory Skills

• Java
• Spring Boot
• Microservices
• AWS / GCP

Additional Technical Skills

• Spring Security
• RESTful APIs
• OAuth 2.0 / OIDC
• JWT
• Role-Based Access Control (RBAC)
• JPA / Hibernate
• Relational Databases
• JUnit
• Mockito
• Docker
• CI/CD
• Secure Coding
• OWASP Top 10
• API Design and Development
• Issue Analysis and Troubleshooting

Desired Profile

• 5–10 years of software development experience with strong expertise in backend development.
• Strong hands-on development experience with Java, Spring Boot, and Microservices architecture.
• Experience in designing and developing scalable and secure REST APIs and microservices.
• Hands-on experience with AWS and/or GCP cloud platforms.
• Good understanding of Spring Security, authentication, authorization, JWT, OAuth 2.0, and OIDC.
• Strong knowledge of relational databases and ORM frameworks such as JPA/Hibernate.
• Experience with automated testing using JUnit and Mockito.
• Exposure to Docker, CI/CD pipelines, and cloud-based deployment processes.
• Strong debugging, troubleshooting, and root-cause analysis skills.
• Good communication and collaboration skills with experience working across development, QA, DevOps, and frontend teams.

What We Believe We’re proud to embrace the same values that have shaped UST since the beginning. Since day one, we’ve been building enduring relationships and a culture of integrity. And today, it's those same values that are inspiring us to encourage innovation from everyone, to champion diversity and inclusion and to place people at the centre of everything we do.

Humility We will listen, learn, be empathetic and help selflessly in our interactions with everyone.

Humanity Through business, we will better the lives of those less fortunate than ourselves.

Integrity We honour our commitments and act with responsibility in all our relationships.

Equal Employment Opportunity Statement UST is an Equal Opportunity Employer. We believe that no one should be discriminated against because of their differences, such as age, disability, ethnicity, gender, gender identity and expression, religion, or sexual orientation. All employment decisions shall be made without regard to age, race, creed, colour, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law. UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.

• To support and promote the values of UST.
• Comply with all Company policies and procedures

Skills Java, Spring Boot, Spring Security, microservices, AWS/GCP