Senior Full-Stack Developer to Build MVP from Existing SaaS Prototype
Worldwide
I am looking for a strong full-stack developer to help take an existing AI-enabled SaaS prototype into MVP. The prototype is already built and the product workflow is mapped. I now need someone who can help translate that into a real product with clean architecture, sensible MVP scope, and strong technical judgement. What I need I need someone who can: * review the existing prototype * recommend the right MVP structure * build the first functional version properly * make good decisions about what belongs in MVP vs later phases * work clearly with a non-technical founder Core skills required Please only apply if you are confident with most of the following: * Frontend: Next.js, React, TypeScript, Tailwind CSS * Backend: Node.js / full-stack JavaScript or TypeScript * Database: Supabase, PostgreSQL, Firebase, or similar * Authentication: NextAuth/Auth.js, Clerk, Supabase Auth, or similar * Deployment: Vercel * Version control: GitHub * Product build: taking a prototype or design into a structured MVP * Workflow logic: building multi-step user journeys and connected dashboard-style products * Clean architecture: scalable code structure, sensible component organisation, reusable logic * API / AI integration readiness: experience preparing products for future AI/API workflows * Communication: ability to explain technical decisions clearly to a non-technical founder Nice to have * experience with SaaS dashboards or workflow tools * experience with EdTech, productivity, or HR / professional development platforms * experience integrating AI features or preparing products for AI-supported workflows * experience with Figma handoff / design-to-build implementation This is a good fit if you have * built SaaS products from prototype to MVP before * strong frontend and backend experience * good product sense, not just coding ability * the ability to think practically about scope, speed, and future scalability In your proposal, please include * 2–3 relevant SaaS / MVP examples * whether you have taken a product from prototype to MVP before * the tech stack you would recommend for this build * how you would approach scoping Phase 1 of the MVP * your pricing approach and likely budget range * your availability and estimated timeline Process I would expect to start with a prototype review and a clear MVP recommendation before development begins. At this stage, I am sharing enough to recruit the right person. More detailed product information will be shared with shortlisted candidates.
- Not SureHourly
- 1-3 monthsDuration
- ExpertExperience Level
- Remote Job
- Ongoing projectProject Type
Skills and Expertise
Activity on this job
- Proposals:50+
- Last viewed by client:2 days ago
- Interviewing:1
- Invites sent:2
- Unanswered invites:1
About the client
- United KingdomRugby2:34 PM
- $920 total spent4 hires, 0 active
- Individual client
Explore similar jobs on Upwork
How it works
Create your free profileHighlight your skills and experience, show your portfolio, and set your ideal pay rate.
Work the way you wantApply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
Get paid securelyFrom contract to payment, we help you work safely and get paid securely.
About Upwork
- 4.9/5(Average rating of clients by professionals)
- G2 2021#1 freelance platform
- 49,000+Signed contract every week
- $2.3BFreelancers earned on Upwork in 2020
Find the best freelance jobs
Growing your career is as easy as creating a free profile and finding work like this that fits your skills.
Trusted by