My name is Krzysztof Oziembłowski — I am a software engineer, freelancer and owner of Codence.pl. I design and deploy websites, web applications and mobile apps for businesses across Poland.
I hold an engineering degree in computer science and am currently completing my master's studies. Before founding Codence.pl, I gained experience through freelance commissions and personal projects, which gave me a solid foundation for independently managing projects from A to Z.
I operate as a sole trader — which means you have direct contact with the person who actually designs and codes your project. There are no middlemen, account managers or anonymous "teams". You talk to me, agree with me, and I deliver.
I value independence and flexibility — I can work with clients the way they truly need, without corporate schemas and rigid processes. I treat every commission individually: I listen and try to understand the business goal first, then choose the technical solution. I do not sell ready-made templates — I adapt to you.
The process always starts with a conversation — I want to know what you do, who your offer is aimed at and what you expect from the finished product. Based on this I prepare a project proposal. Only after your approval do I start work.
During the project you have access to the Codence-Klient system — a proprietary platform where you can see in real time what stage the project is at. You can submit feedback as in a ticket system and settle payments — all in one place, without email chaos.
After deployment I do not disappear. I offer monthly maintenance packages and one-off editing commissions — depending on what you need. If you prefer to manage the site yourself, I provide training on using the admin panel.
No two projects are the same. I analyse every commission from scratch and choose tools for a specific goal.
You write and talk to me — the person who actually does the project. No middlemen.
You know what is happening and when — the Codence-Klient system gives you full visibility into progress.
WordPress, React, ASP.NET, React Native — technology choices stem from project needs, not habits.
Projects I delivered for clients — from websites to dedicated IT systems

NovaCRM — an in-house CRM by Codence: dashboard with charts, Kanban sales pipeline (drag & drop), clients, tasks, calendar and reports. Light and dark theme, fully responsive.

Radio Umiłowani mobile app in React Native — audio streaming for iOS and Android, background playback, dynamic messages. Delivered in 2 weeks.

WordPress business card site for a critical thinking trainer — custom ACF blocks, SEO blog, LCP 0.7 s. Clients include Cisco, Santander, Orlen.

WordPress website for an energy company — 8 subpages with SEO optimisation and keyword research. Result: +35% organic traffic after domain migration.

WordPress website for visual artist Zbigniew Leuszniewicz — art gallery, logo design chosen from 3 proposals, personalised email signature.

Dedicated ERP system in ASP.NET Core 8 for Mikronika — order workflow, configurator, PDF quotes PL/DE. Replaced Excel + Teams. Delivered in 3.5 months.

Website for a family cleaning company Pulito from Tricity — WordPress, logo and monogram design, interactive before/after gallery, SMTP, SEO. Delivered in 3 days.

E-learning platform with ICDL courses, shop, student dashboard and admin panel. React 19 + ASP.NET Core 9 + PostgreSQL + Stripe. In progress.
See what our clients say about us
"I commissioned a website for my company and everything was done exactly as I wanted. Excellent communication, fast delivery and full professionalism at every stage. The final result fully met my expectations — the site looks great and works flawlessly. Highly recommended."
"The cooperation went very smoothly. The website was done professionally, in accordance with the agreement and on time. I am very satisfied with the final result and I strongly recommend Krzysztof."
"Krzysztof approached the commission very diligently. The site was done quickly, corrections almost immediately. Good communication and quality of work. I am satisfied and recommend."
"Fast delivery, Krzysztof built a new app — it turned out great, good communication. Recommend."
We are ready to help deliver your project