Principal Node.js & Java Developer – REMOTE

Principal Node.js & Java Developer – Legacy Code Migration Specialist (REMOTE)

Join Cognizant as a Senior/Extremely experienced developer with 20+ years of experience specializing in legacy system modernization and migration.

• Assess, analyze, and design modernization strategies for legacy NodeJS/Java applications, monolithic architectures, and outdated database systems.
• Lead the migration of legacy applications to microservices-based, cloud-native architectures using Java (Spring Boot, Hibernate) and Node.js (Express/Nest.js).
• Refactor and rewrite legacy codebases to improve scalability, maintainability, and performance.
• Implement automated migration tools, API gateways, and middleware solutions to ensure smooth integration with modern applications.
• Collaborate with business stakeholders, architects, and Dev Ops teams to define migration roadmaps, ensuring minimal disruption to business operations.
• Enhance legacy systems with event-driven architectures (Pulsar/Kafka) for real-time processing.
• Implement cloud-native solutions on AWS leveraging containerization (Docker, Kubernetes) and serverless technologies.
• Establish CI/CD pipelines, automated testing frameworks, and Dev Sec Ops  practices to accelerate modernization efforts.
• Provide technical leadership, mentoring, and best practice guidance to development teams during the transition.

• 20+ years of experience in software development with a strong background in Java (Spring, Hibernate, JPA) and Node.js (Express.js, Nest.js).
• Expertise in legacy system migrations, including monolithic-to-microservices transformations.
• Strong knowledge of cloud computing platforms (AWS, Azure) and serverless computing.
• Hands‑on experience in database modernization, schema refactoring, and ETL pipeline development.
• Experience with API modernization, including RESTful APIs, Graph
  
  QL, and event‑driven patterns.
• Deep understanding of Dev Ops, CI/CD pipelines (Jenkins, Git Hub Actions, Git Lab CI/CD), and Infrastructure as Code (Terraform, Ansible, Cloud Formation).
• Strong experience in performance optimization, security hardening, and system reliability improvements.
• Proven ability to reverse‑engineer complex legacy systems, understand business logic, and design modern replacements.
• Excellent problem‑solving, analytical, and stakeholder management skills.

• Experience with AI‑driven code refactoring tools and automated legacy code analysis.
• Experience in Cold Storage & Warehouse Management Systems (WMS) & Automated Retrievals and Storage systems.
• Supply chain logistics, inventory management, and warehouse automation.
• Experience with low‑code/no‑code platforms for rapid modernization.
• Contributions to open‑source modernization frameworks or cloud migration tools.

• Annual salary: $131,000 – $180,000 + bonus depending on experience and qualifications.
• Additional discretionary annual incentive program.
• Medical/Dental/Vision/Life insurance.
• Paid holidays & paid time off.
• 401(k) plan with contributions.
• Long‑term/Short‑term disability.
• Paid parental leave.
• Employee Stock Purchase Plan.

Applications will be accepted until January 11, 2026.

We do not offer visa transfer or sponsorship now or in the future.