Business systems and web application development

Internal tools, admin dashboards and web applications from idea to launch. Fixed price, agreed before we start.

React, TypeScript, .NET · APIs and AI features

Sample fleet management system: a vehicle list, a route on the map and the latest locations

Selected work

Language learning platform

A public website, a learner platform and content management in one system. The admin builds courses on their own, and exercises are generated automatically from the vocabulary.

Next.js · Supabase

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The learner home screen of the language platform: course map, lesson in progress, review and progress

TikMaker

An editor for short vertical videos: a video is assembled from ready-made scenes, and the voice-over and subtitles are generated from text.

React · Remotion · ElevenLabs

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The TikMaker editor: scenes, preview and a multi-row timeline

How I can help

A new system from scratch

When you need a working product, not a web page.

I help pin down the solution, design the interface and build the system from frontend to API and database.

Includes

  • React / TypeScript
  • API and backend
  • Authentication and permissions
  • Data model
  • Integrations
  • AI features

Improving an existing system

When the system works but is slow or hard to develop further.

First I find where the problem is, then I fix what actually gets in the way.

Includes

  • Performance
  • Refactoring
  • Finding and fixing bugs
  • UX problems
  • API optimisation
  • AI integrations

New features for an existing system

When the product doesn't need a rewrite.

I get to know the existing code and build new features without breaking what already works.

Includes

  • New modules
  • Frontend features
  • Backend features
  • New API endpoints
  • Integrations
  • AI agents and LLMs

How the work goes

  1. 01

    You write

    You describe the idea or problem.

  2. 02

    Plan and price

    Within 24 hours of our call you get a plan and a fixed price in writing.

  3. 03

    Building

    You see progress all along, not only at the end.

  4. 04

    Launch

    I deploy the system and prepare guides on how to use it. My work comes with a 3-month warranty.

You get a plan and a fixed price in writing within 24 hours of our call.

Discuss a project
Gabrielė Tamaševičiūtė

About me

I'm Gabrielė. I love building systems that genuinely help people: they save time, cut down the chaos and let people focus on what matters. What makes me happiest is seeing people use my work every day and be glad they have it.

  • 3+ years building systems
  • Frontend, backend, APIs and AI
  • From idea to launch

Frequently asked questions

It depends on the scope, the integrations and what the system needs to do. After a short call I send a work plan and a fixed price in writing within 24 hours: you pay for the result, not for hours.

It depends on the scope: a small improvement can take a few days, a new system from a few weeks. I give the exact timeline in the plan, together with the price, before any work starts.

Yes. There's no need to start from scratch: I can keep working on your existing system, fix what doesn't work or gets in the way, and add new features.

No, the agreed price doesn't change. If you come up with something new and bigger along the way, we discuss it separately. Small requests I usually just include: what matters to me is that the system suits you.

Yes. For example, I can build a chat assistant that answers your customers' questions from your own information, write texts or product descriptions automatically, summarise documents and emails, translate content into other languages, or help people find what they need faster. If you have your own idea of how AI could make your work easier, get in touch and we'll work out how to make it happen.

Yes. Along with the system I prepare user guides and the documentation you need, and on request video training for your team, so everyone gets comfortable with the new system quickly.

Have a project idea?

Write a few sentences about your project. I usually reply within 24 hours.