You will get Startup MVP Development React js MVP Developer Web App MVP Builder
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Project details
IMPORTANT: every client has unique requirements - let's talk in Upwork Chat before ordering.
Is your MVP taking months instead of weeks? You will get a startup MVP built by an Expert-Vetted React developer with a Master's in Computer Science and 7+ years of experience. I launch production-ready MVPs in 2-3 weeks with a business-first approach: product decisions drive the tech, not the other way around. Startups from idea stage to Series B, plus Samsung, Horizons and Bentley.
What you get:
• React or Next.js app with Node.js API, PostgreSQL or MongoDB and auth
• AI features done properly: streaming answers, prompt templates, token limits
• Payments, admin area and analytics wired for a real launch
• Fixed scope, weekly demos and every account created in your name
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Is your MVP taking months instead of weeks? You will get a startup MVP built by an Expert-Vetted React developer with a Master's in Computer Science and 7+ years of experience. I launch production-ready MVPs in 2-3 weeks with a business-first approach: product decisions drive the tech, not the other way around. Startups from idea stage to Series B, plus Samsung, Horizons and Bentley.
What you get:
• React or Next.js app with Node.js API, PostgreSQL or MongoDB and auth
• AI features done properly: streaming answers, prompt templates, token limits
• Payments, admin area and analytics wired for a real launch
• Fixed scope, weekly demos and every account created in your name
startup mvp development mvp development startup web app mvp development ai mvp development saas mvp development react mvp development openai mvp development ai app development chatgpt app development minimum viable product development founder mvp development next js mvp development full stack mvp development startup mvp development services ai startup mvp development mvp for startups development
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$199
|
Standard
$990
|
Advanced
$2,400
|
|---|---|---|---|
| Delivery Time | 5 days | 14 days | 24 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 3 | 8 | 18 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
LLM integration (OpenAI or Anthropic)
(+ 4 Days)
+$349
Subscription billing
(+ 4 Days)
+$299
Technical scope document (PDF)
(+ 3 Days)
+$149Frequently asked questions
24 reviews
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YP
Yong P.
Aug 18, 2026
Full Stack Developer for Consumer Website and App
Kyrylo is an extremely capable and experienced developer, familiar with a lot of key programming languages. He produces very high quality code, as attested to by my CTO, that is easily scaleable and keeps thorough documentation for future reference. His thoughtful original architecture has been a real asset for us.
YP
Yong P.
Aug 18, 2026
Full Stack Developer for Consumer Website and App
Kyrylo is a very capable developer that produces high-quality work. He is very detail-oriented in producing code along with very thoughtful architecture and thorough documentation that can be used to further scale off his code. My CTO was thoroughly impressed.
If I have point to any weakness, it would be that Kyrylo sometimes underestimates the magnitude of certain tasks, but maybe it is because he so thorough with his work that it takes him a little longer than expected.
If I have point to any weakness, it would be that Kyrylo sometimes underestimates the magnitude of certain tasks, but maybe it is because he so thorough with his work that it takes him a little longer than expected.
YS
Yuval S.
Apr 7, 2026
FE Development Project for Web SDK
It was a pleasure working with Kyrylo. We worked on a front end SDK using TypeScript, HTML, and CSS, with responsive design based on Figma.
RK
Raj K.
Mar 30, 2026
Multi-League Fantasy Cricket Website Development
HC
Hugo C.
Mar 25, 2026
Phase 1 Sudocu
Excellent cooperation on our front‑end development project. The team delivered high‑quality work using React, TypeScript, and Tailwind CSS, with clear communication and strong attention to detail. They implemented data handling with React Query and integrated Supabase for backend services, as well as Stripe for payments. The process was smooth, efficient, and user‑focused. Highly recommended for projects involving front‑end development, React, TypeScript, Supabase, and Stripe integrations.
About Kyrylo
Full Stack Developer | React Developer | Front End Developer | Node.js
100%
Job Success
Lisbon, Portugal - 7:08 pm local time
💡 Tired of hiring a Front End Developer who doesn't understand your business and just writes code?
I'm a Front End Developer helping startup founders launch production-ready MVPs in 𝟮–𝟯 𝘄𝗲𝗲𝗸𝘀, using a clear, 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀-𝗼𝗿𝗶𝗲𝗻𝘁𝗲𝗱 development approach. As an Upwork Expert-Vetted React Front End Developer with a Master's in Computer Science and 7+ years of experience building scalable SaaS platforms, dashboards, and custom APIs, I translate complex tech into clear product decisions that drive results.
Over those years as a Front End Developer I've worked with startups from idea stage to Series B, as well as enterprise clients like 𝗦𝗮𝗺𝘀𝘂𝗻𝗴, 𝗛𝗼𝗿𝗶𝘇𝗼𝗻𝘀, and 𝗕𝗲𝗻𝘁𝗹𝗲𝘆 - always focusing on fast delivery, clean architecture, and measurable outcomes.
💬 Here's what founders say after working with me as their Front End Developer:
"𝘎𝘳𝘦𝘢𝘵 𝘦𝘹𝘱𝘦𝘳𝘪𝘦𝘯𝘤𝘦 𝘸𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘒𝘺𝘳𝘺𝘭𝘰! 𝘏𝘦 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘢 𝘩𝘪𝘨𝘩-𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘙𝘦𝘢𝘤𝘵 + 𝘛𝘺𝘱𝘦𝘚𝘤𝘳𝘪𝘱𝘵 𝘧𝘳𝘰𝘯𝘵𝘦𝘯𝘥 𝘴𝘵𝘺𝘭𝘦𝘥 𝘸𝘪𝘵𝘩 𝘛𝘢𝘪𝘭𝘸𝘪𝘯𝘥 𝘊𝘚𝘚, 𝘣𝘶𝘪𝘭𝘵 𝘸𝘪𝘵𝘩 𝘤𝘭𝘦𝘢𝘯 𝘤𝘰𝘥𝘦 𝘢𝘯𝘥 𝘴𝘵𝘳𝘰𝘯𝘨 𝘢𝘵𝘵𝘦𝘯𝘵𝘪𝘰𝘯 𝘵𝘰 𝘥𝘦𝘵𝘢𝘪𝘭. 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘸𝘢𝘴 𝘴𝘮𝘰𝘰𝘵𝘩 𝘢𝘯𝘥 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘺 𝘰𝘯 𝘵𝘪𝘮𝘦 - 𝘩𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥!"
"𝘒𝘺𝘳𝘺𝘭𝘰 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘤𝘭𝘦𝘢𝘯, 𝘴𝘤𝘢𝘭𝘢𝘣𝘭𝘦 𝘤𝘰𝘥𝘦 𝘢𝘯𝘥 𝘩𝘢𝘯𝘥𝘭𝘦𝘥 𝘧𝘳𝘰𝘯𝘵-𝘦𝘯𝘥 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 𝘸𝘪𝘵𝘩 𝘱𝘳𝘦𝘤𝘪𝘴𝘪𝘰𝘯. 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘸𝘢𝘴 𝘴𝘮𝘰𝘰𝘵𝘩, 𝘢𝘯𝘥 𝘩𝘦 𝘸𝘢𝘴 𝘱𝘳𝘰𝘢𝘤𝘵𝘪𝘷𝘦 𝘪𝘯 𝘴𝘰𝘭𝘷𝘪𝘯𝘨 𝘵𝘦𝘤𝘩𝘯𝘪𝘤𝘢𝘭 𝘤𝘩𝘢𝘭𝘭𝘦𝘯𝘨𝘦𝘴. 𝘏𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥𝘦𝘥 𝘧𝘰𝘳 𝘸𝘦𝘣 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵, 𝘈𝘗𝘐 𝘪𝘯𝘵𝘦𝘨𝘳𝘢𝘵𝘪𝘰𝘯, 𝘢𝘯𝘥 𝘱𝘦𝘳𝘧𝘰𝘳𝘮𝘢𝘯𝘤𝘦-𝘧𝘰𝘤𝘶𝘴𝘦𝘥 𝘦𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨 𝘱𝘳𝘰𝘫𝘦𝘤𝘵𝘴."
"𝘏𝘢𝘱𝘱𝘺 𝘸𝘪𝘵𝘩 𝘴𝘱𝘦𝘦𝘥 𝘢𝘯𝘥 𝘲𝘶𝘢𝘭𝘪𝘵𝘺!"
Why founders keep me as their long-term Front End Developer:
🎯 Business-first mindset - a Front End Developer who understands your priorities and aligns tech decisions with them
⚙️ Rapid MVP execution - from concept to launch in weeks, not months
🧩 Front End ownership - a senior Front End Developer handling React, Next.js, API integrations, Tailwind, MUI and scalable architectures
🧩 Full Stack ownership - MERN, Express.js, Node.js, MongoDB
🧠 Strategic guidance - more than a Front End Developer: I help you define what truly matters for your first release
📌 Typical projects I take on as a Front End Developer:
SaaS dashboards and admin panels - React Front End Developer work with complex state and data-heavy UI
MVPs from Figma to production - a Front End Developer who ships, not just prototypes
Custom API integrations and internal tools for growing teams
Frontend rescue - stepping in as the new Front End Developer on an existing codebase
I don't take on last-minute fixes or e-commerce stores - as a Front End Developer I focus on SaaS and MVP projects where clear product thinking makes the difference.
If you're a founder looking for a reliable Front End Developer who speaks your language and delivers predictably - let's build something great together.
🛠️ Tech Stack & Tools:
Languages & Libraries: React, React.js, Node.js, JavaScript, ReactJS TypeScript, ReactJS NodeJS, Python, PHP, React Native, NextJS, MERN Stack
Styling: Material UI, Tailwind CSS, MUI React, custom SCSS / CSS
Build Tools: Webpack, Vite, NPM
UI/UX: Figma, Frontend Design tools for pixel-perfect visuals
Visualization: Leaflet, maps & data-driven charts
Databases: MongoDB, PostgreSQL, MySQL, Firebase
State Management: Redux, Zustand, RTK Query
Cross-browser / cross-platform manual testing
Steps for completing your project
After purchasing the project, send requirements so Kyrylo can start the project.
Delivery time starts when Kyrylo receives requirements from you.
Kyrylo works on your project following the steps below.
Revisions may occur after the delivery date.
Product and scope alignment
We define the riskiest assumption and the shortest build that tests it. You get a written scope, milestones and a fixed delivery date.
Weekly build increments
Frontend, API, database and integrations are built in weekly slices. After each slice you get a live URL and a short video walkthrough.