peczkowski.dev brand

Modern mobile & web apps

I build modern apps and websites, tailored to your needs.

Hi, I'm Piotr Pęczkowski. I design and build web and mobile apps as well as database platforms — from idea, through setup, to deployment and data migration. Everything tailored to your needs. Whether you need a simple, reliable product or a multi-object system running within your own domain, I can deliver both hybrid apps that combine access from a desktop, tablet or phone, and dedicated mobile apps for Google (Android) and iOS.

Piotr Pęczkowski

About

Technology with purpose and attention to detail

I combine engineering and design to craft products that are fast, clear and a pleasure to use. I rely on the latest technologies, best practices and code quality.

I specialize in building mobile and cross-platform apps with Google Flutter, but also purely web applications (HTML/CSS/JS/PHP) and database platforms — both local and cloud (MySQL, PostgreSQL, Appwrite, Supabase, Firebase, etc.). I configure environments from scratch and safely perform data migrations.

Services

How I can help

End to end — from interface design to a working, deployed product.

Web design

Designing modern, consistent and responsive interfaces and websites that build your brand.

Web applications

Fast, accessible and well-optimized web apps and websites.

Mobile apps & Flutter

Cross-platform apps (iOS, Android) built with Google Flutter from a single codebase.

Databases & migrations

Local and cloud solutions, setup from scratch, optimization and safe data migrations.

Hosting & maintenance

Hosting services and website hosting with administrative care — setup, updates, backups and security.

Consulting & advisory

Consulting and advice on web and mobile apps, databases and choosing the right technology for your project.

Work

Selected projects

Sample deliveries with the technologies used. (Placeholder content — to be replaced with real projects).

Project preview — mobile app

Cross-platform mobile app

iOS/Android app with cloud data sync and offline mode.

Flutter Dart Firebase SQLite
Project preview — website

Landing page / personal site

Fast, responsive and well-optimized site with a contact form.

HTML CSS JavaScript PHP
Project preview — data migration

Database migration & integration

Moving data to the cloud, schema optimization and API integration.

PostgreSQL MySQL Cloud REST API

Contact

Got an idea? Let's talk

Briefly describe your project — I'll get back to you as soon as possible.