Posted:
5/28/2026, 12:17:23 AM
Location(s):
Colorado, United States ⋅ Pennsylvania, United States
Experience Level(s):
Senior
Field(s):
DevOps & Infrastructure ⋅ Software Engineering
Job Requisition: Software Engineer III - Full Stack JavaScript
Are you a collaborative Software Engineer looking to work for a mission driven global organization?
About the role We are seeking a highly capable Software Engineer III to join our fast-paced, Agile development team. This full-stack JavaScript engineer will own and contribute to features across the frontend and backend, partnering closely with product, design, and QA. The ideal candidate has solid experience with React, Node.js, and Express.js, a practical understanding of CI/CD pipelines (preferably Jenkins), and a strong commitment to code quality, testing, and collaborating in an Agile environment. Fluency with GitHub workflows and pull-request-based collaboration is essential.
About the team; As a Sr Software Engineer you have the opportunity to join a diverse team of technologists as we continue to build mission critical products.
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 linting, automated tests (unit/integration), and ensure code quality through reviews and best practices.
Collaborate in an Agile/Scrum environment: participate in standups, sprints 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 share knowledge to uplift the team’s skills and coding standards.
Collaborate with QA to define and implement test strategies and acceptance criteria.
Required Qualifications
3+ years of professional software development experience in full-stack JavaScript.
Proficiency with React (hooks, state management, component design) and modern JavaScript/TypeScript.
Solid experience with Node.js and Express.js for API development.
Demonstrated experience building and consuming RESTful APIs.
Proficiency with GitHub workflows, pull requests, issue tracking, and collaboration in a distributed or co-located team.
Experience with linting (ESLint) and automated testing (unit tests; familiarity with Jest, Mocha, or similar).
Working knowledge of Agile/Scrum methodologies and collaboration in cross-functional teams.
Preferred Qualifications
Experience with additional front-end tooling and state management libraries (e.g., Redux or modern alternatives).
Familiarity with other back-end technologies or databases (e.g., SQL/NoSQL) and ORM/query builders.
Experience with CI/CD beyond Jenkins (e.g., pipelines, containers, deployment strategies).
Exposure to performance optimization, accessibility, and security best practices.
Previous mentorship or leadership experience within technical teams.
Technical Skills (must-have and nice-to-have)
React, Node.js, Express.js
RESTful API design and consumption
JavaScript/TypeScript
GitHub workflows, Git, PR-based collaboration
ESLint and unit/edge testing frameworks (Jest, Mocha, etc.)
Jenkins or similar CI/CD tooling
Agile/Scrum teamwork and ceremonies
Elsevier is a renowned global information analytics company that primarily focuses on providing scientific, technical, and medical (STM) research content, tools, and services. It is one of the largest publishers of academic journals and scholarly literature in the world.
Elsevier operates in various domains, including science, technology, medicine, social sciences, and more. They publish a vast number of peer-reviewed journals covering a wide range of disciplines. These journals act as platforms for researchers and academics to share their findings and contribute to the advancement of knowledge in their respective fields.
In addition to publishing, Elsevier offers a suite of digital solutions and services to support researchers, scientists, and professionals in their work. They provide online platforms like ScienceDirect, Scopus, and Mendeley, which offer access to a vast repository of scholarly articles, research papers, and other scientific content. These platforms often serve as essential resources for software developers seeking to stay updated with the latest scientific advancements.
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Website: https://elsevier.com/
Headquarter Location: Amsterdam, Noord-Holland, The Netherlands
Employee Count: 5001-10000
Year Founded: 1880
IPO Status: Private
Last Funding Type: Private Equity
Industries: Content ⋅ Content Discovery ⋅ Delivery ⋅ Health Care ⋅ Information Services ⋅ Information Technology ⋅ Publishing