Senior Java Web Engineer

Role: Senior Java Web Engineer

Location: 1st Preference: New York City, NY

2nd Preference: Massachusetts, Fort Mill, South Carolina, Raleigh, North Carolina, Washington DC

Mandatory skills: Java 21, React (version 17), Spring Boot 3.x

There are three rounds of interview to select the candidate Round 1: Technical discussion with Cognizant Round 2: Live coding test by client Round 3: Technical discussion with client (Face to face for New York location candidates, Virtual for other location candidates)

Role responsibilities and key accountabilities:

· Contributes to design, development, and implementation of backend services and web applications.

· Writes clean, maintainable, and well-tested code following established engineering practices.

· Participates in technical design discussions and collaborates with senior engineers and architects.

· Works closely with frontend developers to integrate backend services with UI components.

· Supports troubleshooting, debugging, and performance optimization of applications.

· Breaks down user stories into technical tasks and delivers within agreed timelines.

· Collaborates effectively in Agile teams with product owners, QA, and other developers.

· Maintains and improves existing systems while ensuring stability and reliability.

· Builds positive relationships within the team and contributes to a collaborative environment.

· Communicates technical concepts clearly to both technical and non-technical stakeholders.

· Continuously develops technical expertise and stays up to date with modern technologies and frameworks.

Essential skills

· Strong Java fundamentals (Java 21 preferred) including core concepts (collections, concurrency, memory management).

· Solid experience with Spring Framework (Spring 4+) and Spring Boot 3.x.

· Experience building and consuming REST APIs.

· Good knowledge of React (version 17) and integration with backend services.

· Strong understanding of web application architecture and client-server communication.

· Experience with SQL and relational databases (e.g. PostgreSQL).

· Proficiency with version control (Git) and build tools (Maven/Gradle).

· Strong focus on clean code, unit testing, and code reviews.

· Familiar with Agile development practices.

· Comfortable working in Linux/Unix environments.

· 4–8+ years of software engineering experience.

Other desirable skills

· Experience with JSF / JSP applications and legacy UI technologies.

· Familiarity with modern frontend practices and component-based architectures.

· Experience with CI/CD pipelines and testing practices.

· Exposure to Docker / containerization.

· Basic understanding of distributed systems.

· Familiarity with Spring ecosystem tooling.

· Knowledge of financial systems or trading platforms is a plus.

Educational background

· BS/MS in Computer Science or equivalent software engineering qualification.