Principal Engineer- Java + Node JS (REMOTE)

Job Summary

Looking for Super Senior/Extremely experienced Node.js and Java Developer with more than 20 years of experience specializing in legacy system modernization and migration. The ideal candidate will have deep expertise in Java Node.js microservices cloud computing and database modernization with a strong background in migrating monolithic applications to modern architectures. This role requires technical leadership hands-on expertise and strategic planning to ensure seamless transitions

Responsibilities

Looking for Super Senior/Extremely experienced Node.js and Java Developer with more than 20 years of experience specializing in legacy system modernization and migration. The ideal candidate will have deep expertise in Java Node.js microservices cloud computing and database modernization with a strong background in migrating monolithic applications to modern architectures. This role requires technical leadership hands-on expertise and strategic planning to ensure seamless transitions from legacy systems to scalable high-performance solutions.

• Assess Analyse and design modernization strategies for legacy NodeJS/Java applications monolithic architectures and outdated database systems.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 DevOps 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 DevSecOps practices to accelerate modernization efforts.
• Provide technical leadership mentoring and best practice guidance to development teams during the transition.

• More than 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 GraphQL and event-driven patterns.
• Deep understanding of DevOps CI/CD pipelines (Jenkins GitHub Actions GitLab CI/CD) and Infrastructure as Code (Terraform Ansible CloudFormation).
• 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

• About Cognizant's IoT Practice:

  Intelligent, IoT-enabled products will soon result in the proliferation of data and disrupt virtually all industries. To be successful, both large and small companies must leverage IoT capabilities by designing modern products that fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products will revolutionize experiences and result in exciting, transformative outcomes. Without human-centered thinking, connected products are just standalone things-but with it, our modern connected products facilitate a unified way of life enjoyed by all.

  • The annual salary for this position is between $130K - $180K + Bonus depending on experience and other qualifications of the successful candidate.
    This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.
    Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:
  • Medical/Dental/Vision/Life Insurance
  • Paid holidays plus Paid Time Off
  • 401(k) plan and contributions
  • Long-term/Short-term Disability
  • Paid Parental Leave
  • Employee Stock Purchase Plan
    Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
    Applications will be accepted until July 5th, 2025