You will get Full Stack Developer | React Developer | SaaS Developer
Top Rated
Project details
8 years on Upwork. 100% Job Success. 14 successful SaaS platforms delivered.
With 16 years of full-stack experience, I specialize in delivering robust, multi-tenant architectures optimized for enterprise scalability. Having built and shipped multiple complex systems - including my own proprietary SaaS Kit - I provide high-level technical oversight without the hiring overhead. I specialize in turning early-stage MVPs into production-ready platforms, ensuring seamless implementation of critical features like Stripe payment integration, subscription management, RBAC (Role-Based Access Control) and authentication.
Whether your project requires an intuitive UI/UX with responsive design, a high-performance analytics dashboard or a complex marketplace with booking and scheduling workflows, I ensure your system is built to last.
Send me a message today. Let’s look at your code, concept, or roadmap, and map out a highly scalable strategy for your product.
With 16 years of full-stack experience, I specialize in delivering robust, multi-tenant architectures optimized for enterprise scalability. Having built and shipped multiple complex systems - including my own proprietary SaaS Kit - I provide high-level technical oversight without the hiring overhead. I specialize in turning early-stage MVPs into production-ready platforms, ensuring seamless implementation of critical features like Stripe payment integration, subscription management, RBAC (Role-Based Access Control) and authentication.
Whether your project requires an intuitive UI/UX with responsive design, a high-performance analytics dashboard or a complex marketplace with booking and scheduling workflows, I ensure your system is built to last.
Send me a message today. Let’s look at your code, concept, or roadmap, and map out a highly scalable strategy for your product.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included $40
These options are included with the project scope.
$40
- Delivery Time 1 day
- Number of Revisions 1
- Design Customization
- Content Upload
- Responsive Design
- Source Code
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Elizabeth B.
Aug 21, 2025
Senior Fullstack Developer
We needed help for two weeks, and Tolik stepped in and closed the gap. It was great working with him - he delivered early despite a very tight deadline. He’s a true professional with outstanding web development skills and a strong grasp of the business side, which makes working with him a pleasure. Highly recommend.
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Vinay M.
Feb 5, 2024
Fix Authentication Issue With JWT Token
Tolik has been instrumental in solving some challenging back-end coding issues. He has been very responsive, is technically adept and has turned around with the deliverables required very quickly. I would highly recommend his services for issues related to dot net code, server set-up, JWT token issues as well as database upgrades. Am extremely satisfied with his work.
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Steven D.
Nov 15, 2023
Tech Lead Asp.Net Developer
Tolik has consistently performed at an exceptional level on our team and has helped tremendously in getting key features of our apps developed and shipped. He takes on large projects, communicates effectively with the team and project stakeholders, and delivers quality work each and every time. Whether working independently or collaborating with other engineers, Tolik’s contributions always shine. Thank you for the time and hard work you’ve put in with us. We hope to see you again soon!
SH
Shimon H.
May 31, 2023
Senior Asp.Net Developer
Tolik was an outstanding member of the development team. He was able to jump in and contribute immediately to the project which allowed us to make significant progress on our backlog. Tolik asked insightful questions to ensure the requirements were understood and worked efficiently to meet deadlines. Tolik provided daily updates in Slack and Jira which was very helpful for the project manager. Highly recommend Tolik as a developer, especially if you need a dedicated, full-time resource.
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Steve C.
Mar 25, 2021
.NET Core MVC Developer for long term project
Tolik has been great to work with and respond to whatever needs as our project developed. It has been a pleasure working with him, and he has built numerous features into our product offering, and made the platform significantly more stable and reliable.
About Tolik
SaaS Developer | Full Stack Developer | Web Developer | React
100%
Job Success
Bayonne, United States - 12:20 am local time
🏆 14 Long-term SaaS Projects Successfully Delivered
🏆 End-to-End MERN Stack & AI Delivery
I can build a top quality MVP with the help of AI and my free SaaS Kit.
I am an expert Full Stack Developer and SaaS Developer. With focus on building custom, scalable, and robust web apps accelerated by AI. I have 16 years of experience and have delivered 14 long-term successful SaaS products. I take your complex ideas and turn them into production-ready software. I’m a Full Stack Developer who pairs robust backend multi-tenant architecture with clean, modern UI/UX. Ultimately, I build software that helps your business grow and hit revenue goals faster.
🚀 Core SaaS & Full Stack Development:
As a full-stack developer, I deliver complete solutions across frontend and backend layers using the MERN Stack (React, Node.js, MongoDB, TypeScript). I specialize in helping businesses scale beyond the constraints of traditional platforms like WordPress, migrating legacy architectures into high-performance, custom-built React, Next.js and Node.js environments.
As a SaaS developer, I help modern SaaS products stay competitive by designing and embedding production-ready AI integrations. Leveraging OpenAI, Claude, and Claude Code, I build AI-powered automated workflows and intelligent features. I deliver real business value without compromising app speed.
As a full stack developer, I design secure, cloud-native SaaS platforms on AWS using scalable architecture. Incorporating robust authentication layers, RBAC (role-based access control), CI/CD pipelines, serverless microservices and containerization, I architect for long-term reliability and optimal performance to match your growing user base.
My backend developer expertise runs deep: REST APIs, secure user authentication systems and payment integrations that just work. I've spent a lot of time with Stripe, setting up multi-tier billing and flexible subscription models, and I've built analytics dashboards that make sense of all that data. I also handle the connective tissue of SaaS products - hooking up Zapier automations, wiring in communication platforms, including bridging custom architectures with WordPress when clients need to keep it. On the data side, I work with PostgreSQL and SQL, picking the right data layer for each project.
🎯 Why Partner With Me? My career is built on 14 long-term complex SaaS Projects. Clients choose me because I don't just write code; I own the product. Whether we are launching a a multi-tenant, responsive, scalable MVP or optimizing an established platform, I bring a backend-first mindset focused on reliability and operational stability. I provide solutions that offer ultimate freedom and can be deployed anywhere, without vendor lock-in.
Expect clear communication, transparent reporting and a collaborative approach to ensure your vision is realized efficiently.
📩 Send me a message for a free 15-minute consultation to discuss your project goals and how my expertise as a Full Stack React TypeScript Developer and Node.js Developer can bring your product to life. Let's Build Your Next SaaS.
Steps for completing your project
After purchasing the project, send requirements so Tolik can start the project.
Delivery time starts when Tolik receives requirements from you.
Tolik works on your project following the steps below.
Revisions may occur after the delivery date.
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