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English
$
USD
I will develop a custom website
Mark
Level 2
5.0
5.0
What people loved about this freelancer
saxonpatriot
United States
Working with Mark was a seamless experience. He took a complex vision for a custom-built internal platform and turned it into a high-functioning, intuitive...
faithannmarie27
United States
Great experience working with this seller. He helped migrate my website to Squarespace set up Cloudflare and configure my Gmail Workspace DNS records. Communication...
funone32
Canada
When it came to this project, it was absolutely imperative that skillset matched my passion behind the design. Mark exceeded every expectation I've ever had...
jonashertz
Sweden
Mark delivered another iteration of an excel add in project with arrow data insertion to excel that required knowledge of excel add in library and Apache arrow...
jonashertz
Sweden
Mark developed a frontend that connected to my custom API. Everything went smooth and the integration was exactly what I asked for. Mark delivered on time and...
About this gig
Are you looking for a powerful, secure, and fully customized web application or website? Do you need a developer who can handle the entire solution from the database to the UI?
I am a dedicated Full Stack Web Developer ready to turn your project (SaaS, E-commerce, CRM, or corporate site) into a high-performing reality. You're in the right place!
My Full Stack Services:
- Custom App Development (SaaS, CRM, Dashboards).
- Frontend: Responsive design (React, Vue, HTML/CSS).
- Backend & API: Robust systems (Node.js, Python/Django/Laravel, REST/GraphQL).
- Databases: Design/optimization (SQL/NoSQL).
- E-commerce: Payment gateways (Stripe, PayPal) & custom stores.
- Integrations: Third-Party APIs (Google, Mailchimp, Analytics).
- Security & Auth: Authentication and authorization systems.
- Performance: Speed Optimization, Deployment, and Hosting.
- Design: UI/UX Implementation from mockups (Figma/XD).
- Maintenance: Bug Fixing, Refactoring, and Code Support.
Why Choose Me?
- 5+ Years of Proven Full Stack Experience.
- Security-First and Performance-Focused approach.
- 24/7 Availability and fast communication.
- Guaranteed On-Time Delivery.
Let's discuss your project!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Mark
Mark
Full Stack Web Developer, Chatbot Developer
Level 2
- FromUkraine
- Member sinceApr 2023
- Avg. response time1 hour
- Last delivery1 day
Languages
English, Russian, Ukrainian, German
Hi, I’m Mark — a certified full-stack developer with 3+ years of experience building high-performance websites, mobile apps, and automation bots using modern tech. I guarantee clean code, fast communication, and 100% satisfaction. Message me to discuss your project!
My Portfolio
Other Website Development Services I Offer
FAQ
Will my application be mobile-friendly and responsive?
Absolutely! I build all user interfaces using modern best practices and frameworks (like React or Vue) to ensure the application is fully responsive and provides a seamless experience across mobile, tablet, and desktop devices.
What do you need to get started?
I need your content (text, images, logo), access to your chosen hosting/server environment (or credentials to set it up), and a clear document outlining the project scope, desired features, or any reference sites you like.
What technologies do you use for development?
specialize in JavaScript/Node.js (Express, NestJS), Python (Django, Flask), and PHP (Laravel) for the backend, and React or Vue.js for the frontend. I select the best technology stack based on your specific project needs and scalability requirements.
Can you redesign or upgrade my existing application?
Yes! I specialize in migrating outdated or underperforming applications to a modern, scalable technology stack, giving them a fresh, modern UI/UX and significantly improved performance.
Is the website/application SEO-friendly?
Yes, I implement SEO best practices such as clean and semantic HTML structure, optimized routing/clean URLs, fast loading speeds, proper meta-data handling, and server-side rendering (if applicable) to ensure a strong foundation for organic growth.
Will my application be secure?
Definitely. Security is a top priority. I implement secure coding practices, protect against common vulnerabilities (XSS, CSRF), configure robust authentication/authorization (JWT, OAuth), and ensure secure server setup.
Do you offer ongoing support or maintenance?
Yes, I offer a guaranteed post-launch support period (e.g., 30 days) and can also provide flexible long-term maintenance, monitoring, and feature development packages upon request.
Can you set up payment gateways or eCommerce functionality?
Yes! I have extensive experience integrating leading payment processors like Stripe, PayPal, and various local payment APIs, and I can develop a complete custom eCommerce solution.
How long will it take to complete my project?
The timeline is based on the project's complexity and feature set. After our initial consultation and requirements definition, I will provide a clear, detailed timeline and breakdown of development milestones.
Reviews
6 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
S 
saxonpatriot
Repeat Client
United States
Working with Mark was a seamless experience. He took a complex vision for a custom-built internal platform and turned it into a high-functioning, intuitive reality. His attention to detail regarding the user interface and resource management was exceptional. If you need a developer who understands both...
$400-$600
Price
2 weeks
Duration
Helpful?F faithannmarie27
United States
Great experience working with this seller. He helped migrate my website to Squarespace set up Cloudflare and configure my Gmail Workspace DNS records. Communication was fast, professional, and very helpful throughout the process. I really appreciated his patience answering questions and explaining things...
$200-$400
Price
8 days
Duration
Helpful?F funone32
Canada
When it came to this project, it was absolutely imperative that skillset matched my passion behind the design. Mark exceeded every expectation I've ever had in any web build project, and I've had many. An absolute professional and pleasure to work with.
$600-$800
Price
3 weeks
Duration
Helpful?J 
jonashertz
Repeat Client
Sweden
Mark delivered another iteration of an excel add in project with arrow data insertion to excel that required knowledge of excel add in library and Apache arrow library. Mark finalized a working frontend that now can connect to my backend via api and then excel sheet from my description.
$200-$400
Price
12 days
Duration
Helpful?J jonashertz
Repeat Client
Sweden
Mark developed a frontend that connected to my custom API. Everything went smooth and the integration was exactly what I asked for. Mark delivered on time and was easy to work with mostly over messages but with video calls if needed.
$100-$200
Price
8 days
Duration
Helpful?
Reviews
6 reviews for this Gig
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
S saxonpatriot
Repeat Client
United States
Working with Mark was a seamless experience. He took a complex vision for a custom-built internal platform and turned it into a high-functioning, intuitive reality. His attention to detail regarding the user interface and resource management was exceptional. If you need a developer who understands both...
$400-$600
Price
2 weeks
Duration
Helpful?F faithannmarie27
United States
Great experience working with this seller. He helped migrate my website to Squarespace set up Cloudflare and configure my Gmail Workspace DNS records. Communication was fast, professional, and very helpful throughout the process. I really appreciated his patience answering questions and explaining things...
$200-$400
Price
8 days
Duration
Helpful?F funone32
Canada
When it came to this project, it was absolutely imperative that skillset matched my passion behind the design. Mark exceeded every expectation I've ever had in any web build project, and I've had many. An absolute professional and pleasure to work with.
$600-$800
Price
3 weeks
Duration
Helpful?J jonashertz
Repeat Client
Sweden
Mark delivered another iteration of an excel add in project with arrow data insertion to excel that required knowledge of excel add in library and Apache arrow library. Mark finalized a working frontend that now can connect to my backend via api and then excel sheet from my description.
$200-$400
Price
12 days
Duration
Helpful?J jonashertz
Repeat Client
Sweden
Mark developed a frontend that connected to my custom API. Everything went smooth and the integration was exactly what I asked for. Mark delivered on time and was easy to work with mostly over messages but with video calls if needed.
$100-$200
Price
8 days
Duration
Helpful?
