6 Best Senior React JS MongoDB Mobile App Api Freelance Contractor North America Developers For Hire In September 2025
Featured Senior React JS MongoDB Mobile App Api Freelance Contractor North America Developers
Fullstack Developer
Oxford, Florida, US or remote
💻 Lead API Developer – RMCI (Contractor for U.S. OPM) Led API development for federal appraisal software modernization Migrated legacy...
Senior Full Stack Developer
Ontario, Canada or remote
As a Senior Software Engineer at Reddit Inc., I led the development of a telemetry project aimed at enhancing user engagement insights. This project,...
Senior Full Stack Engineer
San Diego, California, US or remote
I've worked on multiple apps from scratch on-prem and cloud native, full-stack engineer with focus on front-end (about 60% to 70% front-end compared...
Senior Web Developer
Orlando, Florida, US or remote
Worked on several SaaS products in PHP, JavaScript, and TypeScript. Created custom SaaS Dashboard using the Yii PHP framework with a MySQL database....
Lead Software Engineer
Orlando, Florida, US or remote
M*rsm*tics...
Full Stack Developer - 25+ Years
Penetanguishene, Ontario, Canada or remote
Creating project with JavaScript for over 25 years. IOU Snack debt tracker that was used at several companies. A ecommerce site for Scotia Bank to...
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