What are the responsibilities and job description for the Java developer position at JSR Tech Consulting?
Major Financial firm is seeking several senior Java developers for contract to hire positions.
Hybrid in Newark, NJ.
Payrate: 65 - 75 per hour.
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.
