You will get a Scalable SaaS MVP with React, Next.js & API Integration
Top Rated
Project details
IMPORTANT
| Before ordering a project, please contact me via Upwork Chat to discuss your business needs and requirements in detail, and I’ll deliver a tailored solution for you. |
With 20+ YoE as a full stack developer, I will design and develop a production-ready SaaS application tailored to your business goals. From MVP to scalable platform, I build clean, secure, and high-performance systems with modern technologies, focusing on architecture, UX, and long-term growth.
Perfect for startups, founders, and businesses launching AI tools, dashboards, marketplaces, or automation platforms.
Services Included:
• SaaS architecture planning
• Full-stack development (frontend + backend)
• API development & integration
• Database design (PostgreSQL, MongoDB)
• Authentication & authorization
• Dashboard & admin panel development
• Performance optimization
• Deployment & launch support
saas development full stack developer next.js react api integration payment integration database frontend development backend development full-stack node.js UX/UI design
| Before ordering a project, please contact me via Upwork Chat to discuss your business needs and requirements in detail, and I’ll deliver a tailored solution for you. |
With 20+ YoE as a full stack developer, I will design and develop a production-ready SaaS application tailored to your business goals. From MVP to scalable platform, I build clean, secure, and high-performance systems with modern technologies, focusing on architecture, UX, and long-term growth.
Perfect for startups, founders, and businesses launching AI tools, dashboards, marketplaces, or automation platforms.
Services Included:
• SaaS architecture planning
• Full-stack development (frontend + backend)
• API development & integration
• Database design (PostgreSQL, MongoDB)
• Authentication & authorization
• Dashboard & admin panel development
• Performance optimization
• Deployment & launch support
saas development full stack developer next.js react api integration payment integration database frontend development backend development full-stack node.js UX/UI design
Programming Languages
PHP, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$4,000
|
Standard
$8,000
|
Advanced
$15,000
|
|---|---|---|---|
| Delivery Time | 15 days | 30 days | 50 days |
Number of Revisions | 3 | 6 | 9 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
47 reviews
(47)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
JA
Jonas A.
Jun 16, 2026
Senior React.js / Next.js / Node.js / Supabase Developer
Max and his team did an excellent job during Phase 1 of our project and were a pleasure to work with throughout the engagement. They helped significantly improve the quality, scalability, maintainability, and overall effectiveness of our platform.
Communication was excellent from start to finish, and together we created a clear roadmap and task plan that kept the work organized and efficient. Beyond completing the assigned work, they asked thoughtful questions, challenged our assumptions, and encouraged us to think through business decisions that will ultimately improve the user experience.
Their proactive approach, technical expertise, and attention to detail added real value to the project. We still have additional phases ahead, and based on our experience so far, we look forward to continuing to work with Max and his team.
Communication was excellent from start to finish, and together we created a clear roadmap and task plan that kept the work organized and efficient. Beyond completing the assigned work, they asked thoughtful questions, challenged our assumptions, and encouraged us to think through business decisions that will ultimately improve the user experience.
Their proactive approach, technical expertise, and attention to detail added real value to the project. We still have additional phases ahead, and based on our experience so far, we look forward to continuing to work with Max and his team.
DT
Dan T.
Jun 2, 2026
Senior React, Next.js, Supabase developer
Maksym and his team at Golden Team Soft agency were great to work with. They provided a robust plan that accounted for not just front end functionality, but also considerations for stability, scalability, performance, and security. The delivery of the work was smooth and on-time. If I need similar work in the future, I will work with them again.
The project was to take a prototype I had built in Lovable and take it to a production ready product with a Supabase backend. They set up dev, staging, and production environments to allow for stable future release cycles. They also improved the code base and made changes to allow for greater scalability, improve performance / applicaiton loading speed. They also added additional functionality that I was unable to build in Lovable.
The project was to take a prototype I had built in Lovable and take it to a production ready product with a Supabase backend. They set up dev, staging, and production environments to allow for stable future release cycles. They also improved the code base and made changes to allow for greater scalability, improve performance / applicaiton loading speed. They also added additional functionality that I was unable to build in Lovable.
IS
Imri S.
May 20, 2026
Senior React, Next.js, React Native, Node.js, and Supabase developer.
Maksym did an excellent job on our fintech mobile app. The project included mobile app development, a web dashboard, and a backend. He demonstrated strong expertise across the full stack and consistently delivered high-quality, well-structured code. Overall, he is proficient in React, Next.js, React Native, Node.js, TypeScript, Supabase, and has solid experience in AI App Development. We would gladly work with him again on future projects.
KO
Kelechi O.
Mar 21, 2025
Android developer
ST
Scott T.
May 16, 2024
Android Dev
Continually exceeding expectations, looking forward to a long working relationship
About Maksym
Full Stack Developer | React Node | React Native | Web Mobile
100%
Job Success
Zaporizhzhia, Ukraine - 12:26 pm local time
📅 20+ years of experience & Master’s in Computer Science
👥 Leading a dedicated team of 25 software developers
📦 70+ completed production-ready projects
💰 $25M+ value generated through high-level architectural solutions
With 20+ years of experience, I am a Full Stack Developer, Web Developer, and Mobile App Developer delivering scalable SaaS platforms, enterprise systems, and modern web development solutions for fintech, healthcare, marketplaces, logistics, and real estate industries. As the founder of a 25+ engineer software company, I lead teams building production-ready applications with clean architecture, high availability, and long-term scalability.
Our team has successfully delivered 70+ production-ready projects supporting large user bases and helping businesses improve operational efficiency, scalability, and product delivery speed. We specialize in enterprise-grade SaaS platforms, React applications, backend systems, and cross-platform mobile app development.
Every Full Stack Developer, React Native Developer, and Web Developer on my team is experienced in scalable frontend and backend architecture. We build robust React Node applications, business dashboards, APIs, marketplaces, and SaaS systems with clean, maintainable code.
💻 Core Technologies & Database Architecture
Our core stack includes React.js, Next.js, Node.js, React Native, Flutter, PHP, Laravel, Python, TypeScript, Supabase, Firebase, PostgreSQL, MongoDB, and MySQL. As a React Native Developer and Mobile App Developer team, we create high-performance cross-platform mobile applications for iOS and Android with modern UI/UX and scalable backend infrastructure.
As a Web Developer and Full Stack Developer, I design scalable database systems using MySQL, PostgreSQL, MongoDB, and Supabase with optimized schemas, secure APIs, and realtime functionality. We frequently deploy solutions on AWS, Google Cloud, and Vercel while ensuring scalability, security, and performance.
We also provide complete web development services including frontend implementation, backend engineering, API integrations, cloud deployment, and DevOps workflows. Our experience includes enterprise SaaS systems, marketplaces, dashboards, PWAs, and mobile platforms.
⚡ AI Integration & Scalable Systems
We specialize in AI-powered Full Stack solutions integrating OpenAI, ChatGPT, RAG systems, automation workflows, and AI APIs into modern web and mobile applications. As a Python Developer and AI-focused engineering team, we build intelligent backend services, AI assistants, automation systems, and scalable SaaS platforms.
Whether modernizing legacy PHP systems, building React Native applications, or developing modern React Node SaaS products, we focus on scalable architecture and measurable business results.
👥 Delivering applications with 120K+ active users
Our experience includes:
• SaaS platforms & marketplaces
• Enterprise dashboards & admin systems
• AI-powered applications
• Mobile app development
• React Native development
• Custom APIs & backend systems
• Web development & frontend engineering
• Realtime systems & cloud infrastructure
• WordPress developer services for CMS-driven projects
⚙️ Additional Expertise
React.js, Next.js, Vue.js, Svelte
Node.js, PHP, Laravel, Python
React Native Developer & Mobile App Developer solutions
Flutter mobile applications
Supabase, Firebase, PostgreSQL, MySQL, MongoDB
AWS, Google Cloud, Vercel
AI integrations & automation workflows
MERN stack architecture
API integrations & scalable backend systems
🤝 Why Work With Me
✔ 70+ completed production-ready projects
✔ Experienced Full Stack Developer & Web Developer team
✔ Strong React Native Developer and Mobile App Developer expertise
✔ Deep experience with scalable SaaS architecture
✔ Focus on performance, scalability, and clean code
✔ Long-term product development and technical leadership
If you need a Full Stack Developer, Web Developer, Mobile App Developer, React Native Developer, Python Developer, or scalable SaaS engineering team — let’s connect.
👉 Click “Invite” or “Hire” and let’s discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Maksym can start the project.
Delivery time starts when Maksym receives requirements from you.
Maksym works on your project following the steps below.
Revisions may occur after the delivery date.
Planning & Project Specification
We define the features, architecture, and scope of the SaaS app.
Database Design
Based on the created technical specification, we create the database structure, including tables, PK/FK relationships, cascade rules, and indexes. Set up migrations and seeders.