Java Developer

Spectraforce Technologies
United States, New Jersey, Newark
Oct 20, 2025
Job Title: Java Developer Duration: 12 months Location: Hybrid (Newark, NJ) Responsibilities Lead and execute the migration from legacy Java applications to modern Java frameworks. Develop, maintain, and optimize enterprise-scale applications new and old Java frameworks (EJB, SpringBoot, etc). Collaborate with cross-functional teams to design, develop, and deploy high-quality software solutions. Integrate AI-assisted development tools, with a focus on using Claude. Provide technical leadership and mentoring to junior developers. Ensure code quality, security, and performance across systems. Required Qualifications: 15+ years of professional Java development experience. Strong proficiency in old and modern Java frameworks as well as old web servers (like Websphere) and new (AWS ECS or Kubernetes) Demonstrated hands-on experience in Java modernization/migration projects. Expertise in converting legacy Java codebases to updated architectures. Application Programming Interfaces (API): Consumption & Development; implementing service oriented architecture (SOA) patterns; Web service technologies such as APIs, REST, JSON, SOAP, XML, JDBC, MySQL Unit, interface and end user testing concepts and tooling (functional & non-functional) Automated testing Software security skills including secure coding, web application security and DevSecOps; Solid grasp of security concepts (authentication, authorization, encryption, digital signature, JWT), SSL, web service proxies, firewall, SAML 2.0, OpenID Connect, OAuth 2.0) Dev Ops Tools & Practices: Branching techniques and usage of GitHub or Bitbucket; DevOps, Jenkins or GitHub Actions Software Development Life Cycle (SDLC): Monitoring and logging techniques Familiarity with Claude AI coding capabilities. Strong problem-solving, debugging, and optimization skills. Ability to work independently and in teams with minimal supervision. Must be located in NY or NJ. Preferred Qualifications: Experience in the insurance industry. Japanese language proficiency is a plus (not a must) Portfolio or GitHub repositories showcasing similar Java migration projects. Conduct live coding in interview sessions to demonstrate technical skills.