Senior Software Engineer - Full Stack Developer - React, Node.js
North America
August 31, 2026 at 2:38 PM
✨ AI summary
Location
Philadelphia, PA
Languages
JavaScript
TypeScript
Frameworks
React
Node.js
Express.js
Redux
Databases
SQL
NoSQL
Experience Level
Senior
Are you a collaborative Full Stack Developer looking to work for a mission driven global organization?
About the role We are seeking a highly capable Software Engineer 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 withReact, 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 in the Health Markets spac
e.
Responsibili
tiesDesigning, developing, testing, and maintaining scalable web applications using React on the frontend and Node.js/Express.js on the back
end.Translating product requirements into well-architected, maintainable code and robust A
PIs.Implementing automated tests (unit/integration) and ensure code quality through reviews and best practi
ces.Collaborating in an Agile/Scrum environment: participate in standups, sprints planning, backlog grooming, and de
mos.Contributing to CI/CD pipelines and release processes; work with Jenkins to build, test, and deploy featu
res.Writing and maintaining comprehensive documentation, including code comments, README updates, and API sp
ecs.Troubleshooting production issues, perform root-cause analysis, and implementing long-term fi
xes.Mentoring junior engineers and sharing knowledge to uplift the team’s skills and coding standa
rds.Collaborating with QA to define and implement test strategies and acceptance crite
ria.
Required Qualific
ationsProfessional software development experience in full-stack JavaS
cript.Proficiency with React (hooks, state management, component design) and modern JavaScript/TypeS
cript.Experience with Node.js and Express.js for API develo
pment.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 sim
ilar).Working knowledge of Agile/Scrum methodologies and collaboration in cross-functional
teams.Experience with additional front-end tooling and state management libraries (e.g., Redux or modern alternat
ives).Familiarity with other back-end technologies or databases (e.g., SQL/NoSQL) and ORM/query bui