AET Group
A compliance platform that reduces KYC/KYB and Anti-Money Laundering verification from hours to seconds. Built with a focus on speed and privacy, making instant compliance accessible without compromising user safety.
Visit AET Group ↗Custom Web App Development, End to End by One Senior Developer
Web application development from database to UI, handled by the same person. You describe what you need and get back a working product.
Past work includes enterprise platforms at IBM and we.trade, and the AET Group compliance platform, which cut KYC checks from hours to seconds.
- MVP in as little as 2 weeks
- Database to UI, one developer
- Clean, maintainable code
// Services
What gets built
Full-stack web applications
Database, backend, frontend and deployment, delivered as one working product.
Frontend engineering
Fast React, Next.js or Angular interfaces that work on every screen size.
APIs and backends
Clean APIs with clear endpoints, built to be extended as the product grows.
AI features
Claude-powered search, document analysis or content generation inside your app.
A working MVP in as little as 2 weeks
Something real users can click through, so you learn what works before scaling the build.
// Work
Built and running in production
// From a client
“Pavol was one of the first developers we brought on and has been instrumental in building our compliance platform. He took ownership of major parts of the system across frontend and backend, with a strong focus on clean, scalable architecture that the rest of the team could build on. Beyond his own dev work, he mentored our junior developers and raised the overall quality of the codebase. I would not hesitate to recommend him to anyone looking for a reliable, senior-level developer.”
Patrick Damien O'BrianFounder, AET Group// FAQ
Common questions
Why hire a freelance web app developer instead of a development company?
A development company adds project managers, handoffs and agency margins. A senior freelance web app developer brings the same full-stack skills with one point of contact, from the first call to launch and beyond.
How does MVP development work?
The idea is cut down to the smallest version real users can try, built in short cycles with regular demos, and launched in as little as 2 weeks. What users do with it decides what gets built next.
What does custom web application development cost?
It depends on the number of features, integrations and user roles. A focused MVP keeps the first investment small, and every later phase is scoped and quoted before work starts.
Which technologies are used?
Mostly TypeScript, with React or Next.js on the frontend (Angular where a project already uses it) and NestJS on the backend, deployed to Vercel or AWS.
How fast can an MVP be ready?
A focused MVP can be ready in as little as 2 weeks. Larger products are planned in phases, and each phase ends with something you can use.
Will the code be maintainable?
Yes. Clean architecture and strictly typed code are the default, so another developer can pick the project up later without starting over.
Do I work with a team or one person?
With one senior developer, from the first call to launch. There is no account manager and no handoff between people.
Can AI features be added later?
Yes. Claude-powered features, from search to document processing, can be added to an app that is already running.
// Get in Touch
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