[Job Radar](https://jobradar.live/) / [Jobs](https://jobradar.live/ilanlar) / React Node Senior Software Engineer I Active On-site Philadelphia, PA Posted · 25.09.2026 LinkedIn Jobs US # React Node Senior Software Engineer I RELX Are you an experienced full stack developer (React Node) looking to work on our cutting-edge frontends for a healthcare mission driven organization? Are you a collaborative Sr Software Engineer with an automation mindset — someone who looks for ways to build tools, agents, or AI-assisted workflows to multiply your own and your team's impact? About The Role As a full stack developer you will collaborate with Product, UX designers, and other engineers and teams to develop client-side applications. About The Team The Clinical Key Web team is responsible for the frontend for one of Elsevier's flagship products used by thousands of physicians, nurses, medical students, and other roles daily to improve patient care and research. Requirements Possess current frontend and backend skills in both React and Node. Only candidates with this skill set will be considered for this role. Experience working on moderate to large web monoliths Have taken an application(s) through the full project life cycle process. Possess extensive experience utilizing the Agile delivery process for software development. Experience collaborating with both technical and not technical professionals to drive innovation. Possess an understanding of crucial applications/products in the Science, Medicine, Education business vertical. Responsibilities Designing, developing, and maintaining complex applications using React (front end) and Node.js (back end). Ensuring seamless integration between client-side and server-side components to deliver responsive, scalable, and secure web applications. Developing user interfaces for a large web monolith and small to moderate micro-frontends and services, maintaining high standards for accessibility, performance, and usability. Implementing and optimizing UI components that align with enterprise design systems and technical standards. Lead applications through the entire software development life cycle (SDLC) — from requirements gathering and system design to deployment and maintenance. Ensure high-quality releases through continuous integration, code reviews, and automated testing. Elsevier employs approximately 10,000 people worldwide, including more than 2,500 technologists, and has supported researchers and healthcare professionals for more than 140 years. Today, Elsevier combines deep domain expertise with technology, data, analytics, and AI to create solutions that help advance science, improve healthcare, and drive better outcomes. Beyond Health Markets, Elsevier's data and technology platforms—including ScienceDirect, Scopus, SciVal, ClinicalKey, and Sherpath—support research management, R&D performance, clinical decision support, medical education, and nursing education. Our users rely on more than 2,800 journals, 46,000+ eBook titles, and leading reference works such as Gray's Anatomy , providing an extraordinary foundation of trusted information on which our data and AI capabilities are built. As part of RELX, Elsevier is a global provider of information-based analytics and decision tools. This combination of proprietary content, massive datasets, domain expertise, and advanced technology creates a unique environment for Data Scientists to work on problems where AI and machine learning can have a tangible impact on science, healthcare, and patient outcomes. U.S. National Base Pay Range: $86,600 - $144,400. Geographic differentials may apply in some locations to better reflect local market rates. If performed in Maryland, the base pay range is $90,900 - $151,700.If performed in New Jersey, the base pay range is $102,333 - $163,467. This job is eligible for an annual incentive bonus. We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here to access benefits specific to your location. This job was verified from LinkedIn Jobs US. Applications are completed on the original source. [Apply on the original listing ↗](https://jobradar.live/ilan/2ae194ff-f28d-41f6-9e9d-bbf9f1ad2be1/git) ## Stop searching one by one for roles like this. Upload your resume or enter your target roles to see your first 3 matches for free. [Find jobs for me →](https://jobradar.live/uye/kayit) Your resume is never shared with employers; it is processed only for matching. 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