Custom application and system development

When custom development makes the most sense

Most problems today can be solved with ready-made tools. But then you hit a limit. Your processes are unique, boxed software cannot handle them, bending existing software is expensive, and your company starts hitting an 'Excel ceiling'.

That is when I build custom software. Whether you need a smart internal system for employees, a B2B portal for your partners, or a specialized application built around your unique know-how.

  • You have outgrown current tools or spreadsheets
  • Boxed software forces you to change processes that already work
  • You pay unreasonable per-user license fees
  • You need full control over your data and security

What exactly I design and build

I am not a 'code factory'. I think in architecture. I build on modern cloud technologies and an API-first approach. This makes the resulting application fast, secure, and easy to integrate with future systems.

I specialize in web applications, database systems, and data-heavy backends. If you need AI built in from the start (for example your own LLM over your data), I plan for that immediately.

  • Internal information systems (ERP, CRM modules)
  • Client zones and B2B ordering portals
  • Custom APIs and robust backends
  • Applications with integrated AI (AI/RAG)

How collaboration works

No writing 200-page specifications that become outdated in a month. I start with a short workshop where I map your real processes and define the main priority.

I aim to deliver an MVP (Minimum Viable Product) as quickly as possible - a functional core you can start using immediately. Based on real feedback from your team, I then expand the system iteratively.

  • Technical audit and architecture proposal
  • Fast delivery of a working MVP core
  • Agile development in short cycles (iterations)
  • Thorough testing and clean code (ex-GitLab standards)

Results for your business

You get a tool that mirrors exactly how your company makes money. You remove expensive license fees for third-party tools and gain a competitive advantage.

Most importantly: the software and data are fully yours. There is no vendor lock-in. I write clean, documented code that any future development team can build on.

  • Software you own 100% (no vendor lock-in)
  • Zero per-user license fees
  • A system that grows and scales with your company

Do not let boxed software limit you

Let’s discuss what is currently blocking you. I will evaluate whether custom development makes sense or recommend a simpler path.

Discuss my project
Jarka Košanová

Contact

Do you have a problem and no clear technical solution yet? Get in touch. We'll find the simplest workable path together, and you can book a no-obligation consultation right away.