Senior Full-Stack JS Engineer — Impactful & Collaborative

RELX; Pennsylvania; On-site; USD 86,600 - 144,400; Full time

Job summary

Elsevier is seeking a collaborative Software Engineer to join a fast-paced Agile team. You will own features across frontend and backend using React and Node.js/Express.js, building robust APIs and contributing to CI/CD workflows with Jenkins.

You will collaborate with product, design, and QA to deliver high-quality software and mentor junior engineers in a health markets focused environment.

Qualifications

• Full-stack JavaScript development experience.
• Proficiency with React and modern JavaScript/TypeScript.
• Experience with Node.js and Express.js for API development.
• Experience building RESTful APIs.
• Proficiency with GitHub workflows and PR-based collaboration.
• Experience with linting (ESLint) and automated testing (Jest, Mocha).
• Working knowledge of Agile/Scrum methodologies.

Responsibilities

• Design, develop, test, and maintain scalable web applications using React on the frontend and Node.js/Express.js on the backend.
• Translate product requirements into well-architected, maintainable code and robust APIs.
• Implement automated tests (unit/integration) and ensure code quality through reviews and best practices.
• Collaborate in an Agile/Scrum environment: standups, sprint planning, backlog grooming, and demos.
• Contribute to CI/CD pipelines and release processes; work with Jenkins to build, test, and deploy features.
• Write and maintain comprehensive documentation including code comments, README updates, and API specs.
• Troubleshoot production issues, perform root-cause analysis, and implement long-term fixes.
• Mentor junior engineers and uplift the team’s skills and coding standards.
• Collaborate with QA to define and implement test strategies and acceptance criteria.

Skills

Full-stack JavaScript

React (hooks)

Node.js/Express.js

RESTful APIs

Agile/Scrum

GitHub workflows

Tools

GitHub

Jenkins

ESLint

Jest/Mocha

Redux

TypeScript

Job description

Elsevier is seeking a collaborative Software Engineer to join a fast-paced Agile team. You will own features across frontend and backend using React and Node.js/Express.js, building robust APIs and contributing to CI/CD workflows with Jenkins.

You will collaborate with product, design, and QA to deliver high-quality software and mentor junior engineers in a health markets focused environment.