Full Stack Java Expert (FTE / Hybrid)

NTT DATA Services•Mahwah, NJ

6d•$105,264 - $157,896•Hybrid

About The Position

NTT DATA is seeking a Full Stack Java Expert (FTE / Hybrid) to join their team in New Jersey. The role involves designing, developing, and maintaining enterprise applications using Core Java and modern UI technologies. Responsibilities include building scalable backend services, developing responsive user interfaces, integrating UI with backend services, applying object-oriented design principles, participating in architecture and design discussions, writing clean and testable code, troubleshooting production issues, contributing to CI/CD pipelines, and collaborating with various teams in an Agile environment. The position requires working on-site 3 days per week.

Requirements

Minimum 8+ years of overall software application development experience.
Minimum 6+ years of hands-on Core Java development experience, including Java 8+ features, collections, concurrency/multithreading, exception handling, JVM fundamentals, and object-oriented design.
Minimum 4+ years of hands-on UI/front-end development experience using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3.
Minimum 4+ years of experience developing enterprise backend services using Spring, Spring Boot, RESTful APIs, and microservices.
Minimum 3+ years of experience integrating front-end applications with REST APIs and distributed backend services.
Minimum 3+ years of experience with relational databases and SQL; experience with ORM frameworks such as Hibernate/JPA.
Minimum 3+ years of experience with Git-based source control, CI/CD pipelines, automated builds, unit testing, and code-quality practices.
Strong understanding of application security, authentication/authorization, secure coding practices, and production-grade error handling.
Demonstrated experience with performance optimization, debugging, root-cause analysis, and production support for enterprise applications.
Experience working in Agile/Scrum teams and collaborating across architecture, engineering, QA, and product functions.
Ability and willingness to work on-site 3 days per week in Arlington, New Jersey, or St. Louis (mandatory).

Nice To Haves

Experience in banking, payments, financial services, or another regulated enterprise environment.
Cloud development experience with AWS, Azure, or GCP and container technologies such as Docker and Kubernetes.
Experience with messaging/event-driven platforms such as Kafka or similar technologies.
Knowledge of UI state-management frameworks, component libraries, accessibility standards, and front-end performance optimization.
Experience with observability and monitoring tools and supporting highly available, transaction-intensive applications.
Technical leadership, mentoring, or lead-developer experience across distributed onshore/offshore teams.

Responsibilities

Design, develop, enhance, and maintain enterprise applications using Core Java and modern UI technologies.
Build scalable backend services and APIs using Java, Spring Boot, RESTful services, and microservices-based architecture patterns.
Develop responsive, reusable, and high-performing user interfaces using React.js, Angular, JavaScript/TypeScript, HTML5, and CSS3.
Integrate UI components with backend services and APIs, ensuring reliable data flow, error handling, security, and performance.
Apply object-oriented design principles, design patterns, multithreading/concurrency concepts, collections, exception handling, and performance tuning in Java solutions.
Participate in application architecture, technical design, code reviews, estimation, sprint planning, and solution discussions with engineering and product teams.
Write clean, maintainable, testable, and secure code with appropriate unit, integration, and UI automation coverage.
Troubleshoot complex application and production issues across UI, API, service, and database layers and drive root-cause resolution.
Contribute to CI/CD pipelines, automated builds, code-quality checks, release processes, and deployment readiness.
Collaborate with architects, product owners, business analysts, QA engineers, DevOps teams, and other developers in an Agile delivery model.
Work on-site 3 days per week at the assigned Atlanta, New Jersey, or Dallas office to support team collaboration and Agile ceremonies.