Senior AI + MERN Stack Engineer | SaaS Development & AI
Upwork
The role involves maintaining and enhancing a SaaS platform, developing new features, and integrating AI capabilities using the MERN stack.
- Location
- Remote · Remote
- Compensation
- Rate not listed
- Employment
- 1099
- Role
- Software Engineering → Full Stack → Full Stack Engineer
- Seniority
- Senior
- Published
- Nov 12, 2026
- Last verified
- Nov 12, 2026
Role overview
We are looking for a highly skilled Senior AI + MERN Stack Engineer to join our team and work on an existing SaaS product. The ideal candidate should have strong expertise in the MERN stack (MongoDB, Express.js, React.js, and Nde.js), along with hands-on experience building and integrating AI-powered solutions. You will be responsible for maintaining and improving our existing SaaS platform, developing new features, integrating AI capabilities, optimizing application performance, and ensuring scalability and reliability. We are looking for someone who can understand an existing codebase, take ownership of technical tasks, suggest improvements, and contribute to the long-term growth of our product. This is an ongoing opportunity for the right candidate, with the potential for a long-term collaboration. Detailed Job Description # Senior AI + MERN Stack Engineer – SaaS Product Development ## About the Role We are seeking an experienced AI + MERN Stack Engineer to help maintain, enhance, and expand our existing SaaS platform.
Relevant technologies and specialties
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