Hi, I'm
TomaszKaszuba.
For a decade I've built software you can rely on. From C++ on the mainframe to web apps in Django and Next.js. You work directly with me, no middlemen, no agency overhead.
//About
Ten years writing code. From mainframes to the modern web.
I started with C++ and Python, then branched out in every direction out of plain curiosity. These days I maintain a C++ system on the mainframe that serves millions of customers for one client, and build Django and Next.js apps for others.
I work as a contractor. I usually join a project at the start and stay to the end: requirements, code, database, deployment, maintenance. From the first conversation I'm upfront about what makes sense and what doesn't.
I've worked with
Asseco Poland Netmix FORCOM
How I work
API design & data modeling
I start with the data schema. What's designed well up front saves refactors later.
Real-time & async
WebSocket, Celery, Django Channels. I add them when a project genuinely needs them.
Developer experience
CI/CD, Docker and tests from day one, not just before launch.
Simple code that lasts
Fewer dependencies, not more. Easier to maintain a year from now.
//Services
What I can do for you
Company website or portfolio
See detailsA modern website: fast and lightweight, with a contact form. Looks good on mobile and clients find it on Google.
See detailsOnline store
See detailsAn online store with a cart and online payments. You handle orders from a single panel.
See detailsCustom application
See detailsA web application built around the way you work, when off-the-shelf tools fall short. User accounts, custom logic, integrations via API.
See details
How we work
First step is a short call. I'll tell you straight whether it's a project for me.
B2B contract Remote, Poznań Project or retainer
//Projects
Selected projects
Netmix
LiveIT company website
Website for a Poznań-based IT company providing IT outsourcing and server administration for over 25 years. Bilingual, with a contact form and light/dark theme.
All work
Netmix
LiveIT company website
Website for a Poznań-based IT company providing IT outsourcing and server administration for over 25 years. Bilingual, with a contact form and light/dark theme.
//Stack
Three areas of expertise
Next.js
TypeScript · React 19 · Tailwind CSS
Websites and applications from the interface to deployment. App Router, server-side rendering, full backend integration.
Python
Django · REST Framework · Celery
Django and REST Framework in production: data models, APIs, background jobs. From MVPs to enterprise systems.
C/C++
SFML · CMake · IBM z/OS
Low-level code that has to work. From IBM mainframes to real-time graphics applications.
I also use
- Databases
- PostgreSQL Redis Db2
- DevOps
- Docker Jenkins GitHub Actions Nginx Linux
- Mainframe
- IBM z/OS JCL
- Other
- Tauri Rust Zustand React Query Django Channels Vitest Unity
//Contact
Got a project?Write.
Form or direct email.
//FAQ
I work on a B2B basis (VAT invoice). We can settle a project for a fixed, agreed price, or in a steady monthly model if you need ongoing support.
It depends on scope. A simple portfolio site is priced differently than a store with payments. After a short call you get a concrete quote, with no hidden costs.
A simple site is usually 2-4 weeks; a larger store or application takes longer. I give a realistic deadline once we've agreed the scope.
Remotely, with clients across Poland. We meet online, and in person in Poznań when needed.
Yes. I can extend an existing site, speed it up or move it to a newer stack. You don't have to start from scratch.
I handle maintenance and further development. Hosting, updates and monitoring are on my side, so it's off your plate.