Full Stack Java Expert

We are seeking a Full Stack Java Expert for a contract position based in Jersey City, New Jersey. This role is expected to last 6+ months and offers the opportunity to contribute to enterprise-scale application development across both frontend and backend technologies.

Responsibilities

• Develop and maintain full-stack enterprise applications using Core Java, Spring Boot, and modern frontend frameworks
• Design and implement RESTful APIs and microservices for backend systems
• Build responsive user interfaces using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3
• Integrate frontend applications with distributed backend services and REST APIs
• Manage relational databases, write optimized SQL queries, and work with ORM frameworks such as Hibernate/JPA
• Implement and maintain CI/CD pipelines, automated builds, and unit testing practices
• Perform performance optimization, debugging, and root-cause analysis on production systems
• Apply security best practices including authentication, authorization, and secure coding standards
• Collaborate with architecture, engineering, QA, and product teams in Agile/Scrum environments
• Provide production support and contribute to continuous improvement of code quality

Qualifications

• Required
  • 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