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This is a contract position for a Lead Node/React Engineer located in Livingston, New Jersey. The role is available for a minimum of six months. Responsibilities Design and develop scalable backend services and APIs using Node.js and JavaScript/TypeScript, along with modern React applications. Architect and build new applications and services with an emphasis on scalability, availability, reliability, and performance. Develop and integrate REST, GraphQL, and microservices-based APIs. Work across SQL and NoSQL/distributed databases, including performance analysis and optimization. Build and maintain CI/CD pipelines, automated deployments, and containerized environments using Docker and tools such as Jenkins. Implement application monitoring, logging, alerting, and observability capabilities. Troubleshoot production issues, identify root causes, and implement sustainable solutions. Develop automated tests and promote TDD, code quality, maintainability, and modern engineering practices. Participate in code reviews, technical design discussions, and architectural decisions. Collaborate with product, engineering, QA, and other technical teams throughout the development lifecycle. Provide technical direction and mentorship to other engineers while communicating technical risks, dependencies, and delivery status to leadership. Qualifications Required 10+ years of professional software development experience. Strong hands-on experience with Node.js and modern JavaScript/TypeScript. Solid React development experience. Proven ability to design and develop highly scalable, available, and high-performance applications. Strong understanding of APIs, distributed systems, backend architecture, and software design principles. Experience with SQL and NoSQL databases, automated testing, and TDD. Hands-on experience with CI/CD, DevOps practices, Docker, and Jenkins or comparable tools. Strong troubleshooting and application/database performance optimization skills. Ability to provide technical leadership while remaining highly hands-on in a collaborative engineering environment. Preferred Experience with GraphQL, microservices, cloud-native development, and observability. Additional programming experience with Java, Python, Go, or C#. Background in DevOps/platform engineering or build engineering. Experience establishing architecture and engineering standards for new products. Prior experience mentoring engineers or serving in a technical leadership capacity.