Custom Web Application Development | Scalable & Modern Solutions by Bartek Baran

Custom Web Application Development | Scalable & Modern Solutions

Bartek Baran

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About this service

Summary

I offer end-to-end custom web application development—from sleek, modern UI design to clean, scalable code and backend integration. Whether you need a production-ready product or a fast MVP to validate your idea, I’ve got you covered.

My focus on long-term maintainability—every project includes automated testing and clear documentation to keep things running smoothly beyond launch. I build with performance, flexibility, and user experience at the core.

Process

Discovery & Requirements We’ll kick off with a short call or questionnaire to understand your goals, features, and technical needs.

Wireframes & Planning I’ll create wireframes or a project outline to confirm flow, layout, and structure before coding begins.

Development & Testing I’ll build your web app in stages, with regular updates. Automated tests are included to ensure reliability.

Review & Revisions You’ll receive a working version to test and provide feedback. I include revision rounds to fine-tune everything.

Launch & Handoff Once approved, I’ll deploy the app, share all source files, and deliver documentation for future maintenance or updates.

FAQs

What tech stack do you use?
I typically use React for the frontend, Node.js or Next.js for the backend, and modern tools like Vercel or Northflank for deployment—but I’m flexible based on your project’s needs.
How long does a typical project take?
Most web applications take 2–10 weeks depending on scope and responsiveness during the feedback phases.
Will I be able to edit or update the site after it's done?
Yes! You’ll get full access to the source code along with setup instructions. I can also help integrate a CMS if you want easy, non-technical editing.
Do you offer ongoing support or updates?
I offer optional post-launch support packages, or we can work on a per-update basis if you'd rather keep it flexible.
Can you connect my app to third-party tools or APIs?
Absolutely. I can integrate tools like Stripe, Firebase, OpenAI, or anything else you need to power your app’s features.

What's included

Fully Functional Web Application
A complete, responsive, and user-friendly web application tailored to your needs. Built using modern technologies (React, Vue, Node.js, etc.) with scalable architecture. Format: Deployed on your preferred hosting platform (e.g., Vercel, Netlify, AWS) + source code in GitHub or ZIP Includes: Up to 3 core pages/modules Revisions: 2 rounds of revisions included
Source Code & Documentation
Clean, well-organized source code with inline comments and a setup guide for local development or future updates. Format: GitHub repo or downloadable ZIP + PDF/Markdown documentation Includes: Tech stack list, installation steps, and basic usage instructions Revisions: 1 round of revision for documentation
Automated Testing Suite
A set of automated tests to ensure your web application functions as expected now and in the future. This includes unit tests for core logic and integration tests for key workflows. Format: Test files written using industry-standard frameworks (e.g., Jest, Vitest, Playwright, or Cypress) Includes: Unit tests for up to 3 core components or functions Integration tests for 1-2 major user flows (e.g., login, form submission) Test coverage report Revisions: 1 round of test adjustments based on feedback or edge cases

Skills and tools

Frontend Engineer

Fullstack Engineer

Software Engineer