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Cognizant · 1 week ago

Principal Node.js & Java Developer – REMOTE

United States

Full-time

Remote

Senior Level, Lead/Staff

$131K/yr - $180K/yr

20+ years exp

Cognizant is a company focused on engineering industry-aligned, IoT-enabled products. They are seeking a Principal Node.js & Java Developer to lead the modernization and migration of legacy systems to scalable, cloud-native architectures, providing technical leadership and strategic planning throughout the transition.

ConsultingIndustrial AutomationInformation TechnologySoftwareSoftware Engineering

No H1B

Responsibilities

Assess, analyze, and design modernization strategies for legacy NodeJS/Java applications, monolithic architectures, and outdated database systems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 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

Qualification

JavaNode.jsMicroservicesCloud computingDatabase modernizationAPI modernizationDevOpsAnalytical skillsStakeholder managementProblem-solving

Required

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