Java Full Stack React Engineer

FIS - Fidelity Information Services; Dadri; On-site; INR 600,000 - 1,200,000; Full time

Job summary

FIS is seeking a Full Stack Java Developer to join our Payments engineering team. You will design, develop, and maintain enterprise applications using Core Java, Spring, and Hibernate, building scalable microservices and REST APIs.

You will implement secure authentication with OAuth 2.0/JWT, write unit and integration tests with JUnit/Mockito, and collaborate across product, architecture, and engineering to deliver high-quality software in an agile environment.

Qualifications

• 3–6 years of Java-based enterprise development experience.
• Strong hands-on Java, Spring, JPA/Hibernate, and microservices.
• Experience building RESTful services and APIs.
• Unit/integration testing with JUnit/Mockito.
• Secure auth with OAuth 2.0, JWT and Spring Security.
• Maven, Docker, SQL/PLSQL, messaging (ActiveMQ).
• SOLID, design patterns and TDD in Agile environments.
• Bachelor’s degree in CS/Engineering or equivalent.

Responsibilities

• Design, develop, and maintain enterprise Java apps using Spring, JPA/Hibernate.
• Build scalable microservices and REST APIs for financial workflows.
• Implement OAuth 2.0/JWT security with Spring Security.
• Write unit/integration tests with JUnit/Mockito.
• Apply SOLID principles, patterns, and TDD for maintainable code.
• Collaborate with product, architecture, and engineering teams.
• Optimize performance and troubleshoot distributed systems.
• Participate in backlog grooming and sprint planning.
• Develop SQL/PLSQL database solutions and support Docker deployments.

Skills

Core Java

Spring Framework

Spring Boot

JPA / Hibernate

Microservices Architecture

RESTful APIs

JUnit / Mockito

OAuth 2.0 / JWT

Spring Security

Maven

Docker

SQL / PL/SQL

ActiveMQ or messaging

SOLID / design patterns

TDD / automated testing

Agile / Scrum

Azure / AWS cloud

Kubernetes / Helm

Education

Bachelor's degree in computer science / engineering or equivalent

Tools

Maven

Docker

GitHub / CI tools

Kubernetes / Helm

Jenkins

Azure / AWS

Job description

Job Description:

At FIS you’ll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun.

About The Team

As a Full Stack Java Developer, you will join a high-performing engineering team delivering innovative Payments solutions that enhance FIS’s Issuer platform. You will play a key role in designing, developing, testing, and maintaining scalable enterprise applications while collaborating closely with product, architecture, and engineering teams. Success in this role requires strong full-stack development expertise, a passion for software craftsmanship, and the ability to deliver secure, high-quality solutions in an agile environment. You will contribute throughout the software development lifecycle, from requirements refinement to deployment and continuous improvement.

What You Will Be Doing

• Design, develop, and maintain enterprise-grade applications using Core Java, Spring, Spring Boot, JPA, and Hibernate.
• Build scalable microservices and RESTful APIs that support business-critical financial workflows.
• Implement secure authentication and authorization solutions using OAuth 2.0, JWT, and Spring Security.
• Create comprehensive unit and integration tests using JUnit and Mockito to ensure application reliability.
• Apply SOLID principles, design patterns, and test-driven development practices to deliver maintainable code.
• Cloud experience in AWS, AI tool exposure recommended.
• Collaborate with product owners, business analysts, architects, and engineers to translate requirements into technical solutions.
• Optimize application performance and troubleshoot complex technical issues across distributed systems.
• Participate in backlog grooming, sprint planning, code reviews, and continuous improvement initiatives.
• Develop database-driven solutions utilizing SQL and PL/SQL for efficient data management and integration.
• Support containerized application deployments using Docker and contribute to modern DevOps practices.

What you will bring

• 3 to 6 years of professional software development experience with Java-based enterprise applications.
• Strong hands-on experience with Core Java, Spring Framework, Spring Boot, JPA, Hibernate, and Microservices Architecture.
• Experience developing and consuming RESTful web services and APIs.
• Proficiency in unit and integration testing using JUnit, Mockito, and automated testing frameworks.
• Strong knowledge of application security practices, including OAuth 2.0, JWT, and Spring Security.
• Experience with Maven, Docker, SQL/PLSQL, and messaging technologies such as ActiveMQ or similar platforms.
• Solid understanding of software engineering best practices, including SOLID principles, design patterns, and test-driven development.
• Bachelor’s degree in computer science, Engineering, or a skills-based equivalent combination of education and experience.

Preferred Qualifications

• Experience working within Agile software delivery environments.
• Knowledge of Azure cloud services and cloud-native application development.
• Experience with Kubernetes, Helm Charts, and container orchestration technologies.
• Familiarity with CI/CD tools such as Jenkins and source control platforms including GitHub.
• Understanding identity and access management technologies including Keycloak, SSO, API Keys, and Multi-Factor Authentication.
• Experience with Angular framework and modern front-end development practices.

What We Offer you

• An exciting opportunity to be part of the world’s leading FinTech product organization.
• Opportunities to make an impact in fintech
• Personal and professional learning
• Inclusive, diverse work environment
• Resources to give back to your community
• Competitive salary and benefits

Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

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