Software that supports the growth of your business
We build modern web applications, evolve existing systems, and help companies launch new solutions.
We combine years of software engineering experience with a practical approach to business. No unnecessary complexity — clear rules of cooperation and a focus on quality.
Let's talk about your project
A finestcode.pl product
Stashek
Stashek — a smart assistant for your website
Help customers find what they are looking for faster. Stashek is an AI assistant that answers visitors' questions, presents your offer, and helps customers get the information they need — including outside business hours.
It matches the look of your site and uses information about your company. You can add it to an existing website without rebuilding it.
Visit stashek.ai (opens in a new tab)About finestcode.pl
An independent studio building software for companies looking for an experienced, committed partner for the long term. You work with me directly — from the first decisions and planning through launch and the continued development of the product. I turn years of experience on demanding projects into smooth cooperation, on-time delivery, and clear rules of collaboration. No unnecessary intermediaries, oversized structures, or compromises on quality.
Working languages
- Polish — Native
- English — C1 — ready to work with clients and teams
Cooperation model
B2B cooperation
I prefer a collaboration model based on a clearly defined scope of responsibilities and accountability.
How we can help
- Building applications that grow with the company and support the delivery of its business plans.
- Bringing order to data, customer service, and the team's day-to-day work with CRM systems and simple admin panels.
- Designing consistent, intuitive interfaces that make the product easier for customers and employees to use.
- Connecting different systems and services so data flows smoothly and users can use the application securely.
- Developing and maintaining large applications so new features can be added easily without destabilizing the existing product.
- Improving application speed, quality, and reliability, which reduces the risk of delays, errors, and extra costs.
Technologies we use
Six technologies around which we design, build, and maintain products.
TypeScript
A typed superset of JavaScript that catches errors earlier and makes code easier to maintain. We use it as the default language for the frontend and Node services so APIs, UI, and shared modules stay consistent.
Read more1 of 6 TypeScript
About the author
Rafał Leśniak
The software engineer behind finestcode.pl. Since 2008 I have been building web products — from early platforms to the TypeScript stack I base current partnerships on.
18
Years of experience
since 2008
Industries and solutions
1 of 5
Key technologies
- TypeScript
- React
- Next.js
- Node.js
- Tailwind CSS
Let's talk about working together
Have an idea for a new product, want to speed up development of your current solution, or looking for a proven partner for long-term cooperation? Write to us — we will discuss your project and how we can work together.
- Cooperation
- B2B contract — Open to new product partnerships and long-term technical support.
- TODO — add an email address
- Phone
- 507110130
- Location
- Remote, Kraków, Oświęcim
