Java Full Stack React Engineer
Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Oct 26, 2026. FIS scores A on the Alion truth index.
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.