You will get Discovery + Prototype for SaaS MVP Development & Startup MVP | AI developer
Top Rated
Top Rated
Project details
You've got the idea. Now you need something real to put in front of customers.
This takes you from product clarity to a clickable, testable prototype in 5 days — without hiring a dev team or burning through your runway. We start with a focused 2-hour strategy session to lock in your core hypothesis and define exactly what to build. Not everything. The right thing.
From there, we write a clean requirements doc and build a working prototype using Lovable or Replit — functional enough to validate with real users, fast enough to not slow you down.
No bloated sprints. No 3-week discovery phases. No agency overhead.
This is for founders who are past the "should I build this" stage and ready to answer: "will people actually use it?" — with evidence, not assumptions.
The output isn't just a prototype. It's a validation-ready artifact with a defined hypothesis you can test immediately.
Keywords: saas mvp, ai development, rest api development, saas development, mvp developer, ai software developer, ai api integration, saas, app developer with ai, ai saas development, ai integration, full stack developer saas, ai integration specialist, saas business development, ai api integration
This takes you from product clarity to a clickable, testable prototype in 5 days — without hiring a dev team or burning through your runway. We start with a focused 2-hour strategy session to lock in your core hypothesis and define exactly what to build. Not everything. The right thing.
From there, we write a clean requirements doc and build a working prototype using Lovable or Replit — functional enough to validate with real users, fast enough to not slow you down.
No bloated sprints. No 3-week discovery phases. No agency overhead.
This is for founders who are past the "should I build this" stage and ready to answer: "will people actually use it?" — with evidence, not assumptions.
The output isn't just a prototype. It's a validation-ready artifact with a defined hypothesis you can test immediately.
Keywords: saas mvp, ai development, rest api development, saas development, mvp developer, ai software developer, ai api integration, saas, app developer with ai, ai saas development, ai integration, full stack developer saas, ai integration specialist, saas business development, ai api integration
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $2,500
These options are included with the project scope.
$2,500
- Delivery Time 5 days
- Number of Revisions 1
3 reviews
(3)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
DG
Dmitry G.
Aug 19, 2026
Full Stack Developer for SaaS
Vitalii did an excellent job on our SaaS MVP project from start to finish. He took the time to properly understand our requirements during the discovery phase, asked the right questions, and gave us a clear, realistic scope and estimate before development phase.
CW
Cole W.
Nov 14, 2025
Full Stack Application Infrastructure Review & Final Touch ups (Healthcare)
I had a great experience working with Vitalii and his team. Their code quality was excellent, and they provided solutions that fit both my requirements and my budget. They approached the project thoughtfully and delivered exactly what I needed.
TK
Tim K.
Aug 18, 2025
MVP Developer to Help Us Turn Ideas into Functional Prototype
Vitalii's help was crucial to get my idea started. I sincerely enjoyed Vitalii's expertise, work ethic and enthusiasm. Would love to work together on future projects. Definitely recommend!
About Vitalii
Full Stack Developer SaaS Developer MVP Developer | AI Developer
100%
Job Success
San Francisco, United States - 8:29 pm local time
$53M+ Raised by Clients | 84+ MVPs Launched | 14 Years Building SaaS Startups | 100% Job Success
✅ Co-Founder & CEO at Beyond the Wow — AI Developer & Startup MVP Studio
✅ CEO at Gearheart — Enterprise SaaS MVP Development Studio (14 Years)
✅ 2x Founder of B2B SaaS Products, 1 Exit
✅ 84+ MVP Launches for Startups & Growth-Stage Teams
✅ Built SmartSuite from Scratch — $38M Raised, 7M+ Users
✅ 2–4x Faster MVP Development Using Claude Code, Lovable, Cursor, and Replit
✅ Top-Rated on Clutch & GoodFirms
I'm a 2x founder with one exit and 14 years building B2B SaaS startups as a Full Stack Developer and MVP Developer. I know what it means to bet on an idea, run out of runway, figure out product-market fit. That's why I work as your SaaS Developer and MVP Developer partner — not vendor, but full stack developer building your startup MVP.
I lead Gearheart and co-founded Beyond the Wow — a Full Stack Developer and AI Developer studio. I deliver MVP Development and AI Integration in weeks as a SaaS Developer and MVP Developer. With 14 years of experience, I've shipped 84+ MVP projects for 70+ clients as a full stack developer, web developer, react developer, nextjs developer, wordpress developer, or software developer.
Whether you need a SaaS Developer, MVP Developer, full stack developer, or mobile app developer who understands startup growth — I've done it from both sides. My web app development expertise spans startup MVP and mobile app launches to enterprise SaaS platforms with machine learning, saas marketing, and data science.
OUR ENGINEERING STANDARD
- SmartSuite — SaaS platform built from scratch by a senior full stack developer: $1.2M ARR in 4 weeks, $38M raised, trusted by Capital One
- Globalli — SaaS platform for HR/payroll across 125+ countries, SOC2 Type II, $15M raised, 15+ modules
WHAT I CAN HELP
- Founder Briefing: as an AI Developer and SaaS Developer I define ICP, confirm your startup MVP with software product strategy
- Discovery & Prototype: clickable startup MVP in 5 days by an MVP Developer and full stack developer using Lovable, Replit, React
- Rescue Diagnosis: production issues? Senior full stack developer and MVP Developer review and fix fast
- MVP Development: full-cycle in 3–4 weeks — 2–4x faster. Full stack developer and web developer work includes AI Integration, machine learning, auth, deployment
- Sprint Subscription: ongoing SaaS Developer and MVP Developer support with data science expertise
MVP SPEED — RESULTS
- Legal SaaS platform + AI chatbot (SaaS Developer) → ~2 months
- AI Receptionist with CRM AI Integration (startup MVP, machine learning) → weeks
- B2B Dental Referral startup MVP (MVP Developer) → 3 weeks
- Early-stage startup MVP prototype (MVP Developer specialty) → 5 days
- Medical device SaaS platform (full stack developer) → 2 weeks
WHY WORK WITH ME
- Been There as Founder: Built and exited SaaS products. My MVP Development process and MVP Developer experience is built on founder experience
- Product Before Code: I ask "should you build this?" before "how?" My SaaS Developer approach starts with strategy
- AI Speed, No Shortcuts: as a SaaS Developer, MVP Developer, full stack developer, and AI Developer, I use Claude Code, Lovable, Cursor — 2–4x faster MVP Development
- Offshore Pricing, Enterprise Standard: Ukraine-based SaaS Developer and MVP Developer delivering work at a 14-year standard
I work as a full stack developer: web developer, react developer, nextjs developer, wordpress developer, mobile app developer, software developer, senior full stack developer, data scientist, saas marketing, and web app development specialist.
WHAT CLIENTS SAY
"They were my choice the moment I met them. Their commitment to solving customer problems and creating the best SaaS product is unmatched." — Jon Darbyshire, CEO at SmartSuite
"Not only their great skills, but accountability and ownership. Feels like an internal team, not a vendor." — Febriani, AVP Product at Bababos
TECH STACK
AI & Integration: Claude Code, OpenAI, FastAPI, machine learning, data science
Frontend: React, TypeScript, Next.js, Vue.js, WordPress
Backend: FastAPI, Django, Python, Node.js, GraphQL
DevOps: AWS, DigitalOcean, Kubernetes, Docker
From startup MVP and mobile app builds to full SaaS platforms with saas marketing support, I cover sales-ready products end to end as a Full Stack Developer, SaaS Developer, and MVP Developer.
Steps for completing your project
After purchasing the project, send requirements so Vitalii can start the project.
Delivery time starts when Vitalii receives requirements from you.
Vitalii works on your project following the steps below.
Revisions may occur after the delivery date.
✓ 2-hour strategy session
✓ Core hypothesis & scope definition