Senior Full-Stack Developer (Java & React)

Job Description

We are looking for a Senior Full-Stack Developer (Java & React) to design, develop, modernize, and support enterprise web applications for our client. This position will be a full-time contract and hybrid, requiring candidates to work onsite in the Trenton, NJ office three days per week.

What You'll Do

• Refactor and modernize legacy Java-based applications into scalable, maintainable Spring Boot microservices

• Design, develop, and maintain responsive user interfaces using React, JavaScript, CSS, and Bootstrap

• Develop and consume secure RESTful APIs to support enterprise application integrations

• Analyze business requirements and translate them into technical solutions that align with standards and best practices

• Design, optimize, and maintain relational database structures, with a strong focus on Oracle database performance and SQL optimization

• Perform unit, integration, and component testing using JUnit, Mockito, and React Testing Library

• Troubleshoot application issues and provide production support for enterprise systems

• Implement software builds, deployments, and release management through CI/CD pipelines

• Collaborate with business stakeholders, analysts, architects, and development teams throughout the software development lifecycle

• Enforce coding standards, development best practices, and application security requirements

• Support application enhancements, bug fixes, and ongoing modernization initiatives

• Participate in code reviews, technical design discussions, and knowledge-sharing activities

 

Required:

• Bachelor's degree in Computer Science, Information Technology, or a related field

• LinkedIn profile required

• 10+ years of experience with Java development (Core Java and modern Java frameworks)

• 7+ years of experience with system refactoring and monolithic application modernization

• 7+ years of experience with Spring Framework technologies including Spring Boot, Spring MVC, and Hibernate

• 7+ years of experience working with relational databases and data analysis

• 5+ years of experience developing applications with JavaScript and React

• 5+ years of experience with CSS and Bootstrap

• 5+ years of experience designing and developing RESTful APIs

• 5+ years of experience performing developer-level testing using JUnit, Mockito, and React Testing Library

• 5+ years of experience with software deployment processes and CI/CD tooling

• Strong understanding of software development lifecycle (SDLC) methodologies

• Experience supporting enterprise-level web applications throughout the full application lifecycle

• Ability to work effectively in a hybrid team environment

 

Preferred:

• 7+ years of Oracle Database management and SQL performance optimization

• Experience with application modernization and cloud-ready architecture design

• Experience implementing microservices-based architectures

• Experience supporting public sector or education-related enterprise applications

• Strong analytical, troubleshooting, and problem-solving skills

• Experience working in Agile/Scrum development environments