Frontend, backend, integrations and automation - the whole stack in one pair of hands. 8 years in production, 30+ deployments.
Every pillar comes from situations that keep repeating at the companies who come to me for help - lost time, lost money or a lost website. Scroll - pillar by pillar.
Three years on a subscription, and when the website has to move it turns out the company never owned it.
The code and the repository are yours from day one. Zero vendor lock-in, zero "our platform" you can never walk out of.
code is yoursThe project is in its fourth month and there are still mockups to approve instead of a working website.
Decisions happen on the spot, because the same person designs and deploys. Every week you get a working demo.
demo every weekOne plugin update takes the store down for a whole weekend, because nothing had been tested first.
Architecture before code, PHPUnit / Pest and Playwright / Cypress tests, code review, CI/CD. That is the standard, not a surcharge.
tests as standardWhen you ask about the state of the project, no single person knows the answer end to end.
I design, write, deploy and answer the phone. From the first call to production you are guided by one person - me.
one contactThe quote grows by half mid-project, because nobody wrote the scope down at the start.
You pay for the work of one senior - a simple, transparent structure. In writing: a concrete price, scope and deadline.
price in writingTwo projects in full, with numbers - the third is waiting to launch. Each with a story: what I found, what I built, what changed.
The old site dragged the brand down: Performance 38/100, a blurry offer, zero measurement. Five weeks later: a dark, cinematic layout with an interactive installation cost calculator that qualifies leads before the form is ever sent. Built on a separate staging site - only the tested version went live.
Krystian talked little and did more. He quoted it, gave a date, delivered.Michał Wacławik · Złota-FazaSee case study
Our own site as proof of craft: static, no admin panel, no plugins, edited like code. Nothing to maintain or patch - content lives in files, a deploy takes a minute. I run the same model as a package for companies that change content rarely but want an instant site.
Excellent finishing work nobody could find on Google - and conversations that went straight to price. The site has one goal: a phone call, not a "someday" form. Real photos from the job instead of stock, hard proof instead of adjectives. Numbers and the preview will appear here after launch.
Every decision had a concrete reason, nothing by eye. At all times it was clear why we were doing each thing.Mirosław Mysza · MIR-BUDComing soon
Three trades, one conclusion. Quotes in full - no trimming, no polishing.
To be honest - in our trade people promise a lot. Krystian talked little and did more. He quoted it, gave a date, delivered. The site is up, Google sees it, clients find us. If you are looking for a proven partner for your company - I highly recommend him.
Before we started anything, we sat down and established what I needed the website for - what it should do and what matters most to me. Every decision had a concrete reason, nothing by eye. At all times it was clear why we were doing each thing. Recommended.
We work with Krystian on an ongoing basis and it is exactly what we were looking for - changes to the portal go smoothly, communication is concrete, and we do not have to worry about the technical side. Deadlines kept, work done properly. Recommended.
Pick a path or type what is going on - I match the scope to the problem.
The questions I hear most often - no beating around the bush.
The code and every access are yours from day one, on your repository - nothing is locked away with me. I work on a standard, proven stack, so for cover and overflow I have trusted specialists I collaborate with, plus a response time fixed in the maintenance agreement. You never end up blocked.
Zero dependence on one person. The repository, hosting and accesses are on your side from the start, and the stack is standard (WordPress / WooCommerce or TypeScript / Node) - any developer can take it over without archaeology. I do not build castles where only I know the entrance.
No - I am a fullstack developer and I cover the whole modern web: websites, stores, applications, APIs, admin panels and finance modules, including systems at the scale of iGaming operators. I match the technology to the problem, not the other way around - WooCommerce or Laravel are frequent client choices, not my limit.
Backend: PHP / Laravel (APIs, queues, permissions, Filament / Nova panels, Livewire / Blade), Node.js, Python. E-commerce: WooCommerce (HPOS, custom checkout, Subscriptions). Frontend: TypeScript, React, Next.js, Vue, Astro, Tailwind. Tests: PHPUnit, Pest, Playwright, Cypress + CI/CD. Databases: PostgreSQL, MySQL, Redis. AI: OpenAI / Anthropic integrations, RAG. Infra: Docker, Linux, Nginx, Cloudflare, AWS. I deliberately leave only four ecosystems to others: C++, .NET / C#, Java and Go.
Because client code is private - it lands on their repositories, usually under NDA. A public wallet of commits would come at the cost of their confidentiality, and I do not agree to that. Publicly I maintain only my own tools (a WooCommerce plugin, a TypeScript library). Instead of commits I show results with hard numbers (Lighthouse, Speed Index) and share references on a call.
The CodeCollab.pl brand is from 2024, but I have been on production commercially since 2018 - 8 years of projects for clients in Poland and Ireland. My own studio is the next stage of the road, not its beginning.
Most projects run under NDA - that is the B2B standard - so I publish only those with the client’s written consent. References from clients on maintenance are shared on a call. The public case studies carry hard numbers, not generalities: e.g. Złota-Faza - Lighthouse performance from 38 to 100, full page load ~1.3 s.
I do not work "solo" in the old sense - I have a refined workshop and automation that give me the throughput of a whole team. I have already built backend under real load for systems at the scale of iGaming operators, so a large custom build or a B2B panel is my territory. You get the power of a team and one point of responsibility.
Describe it in a few sentences - I come back personally with a scope, a concrete price and a date.
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