Software for people
who are on the move.
I'm Mariusz Charusta. I design and build web applications, backend services and Connect IQ apps for Garmin watches — from the idea, through the server, all the way to the screen on your wrist.
Get in touchWhat I doAbout me
I'm a full stack developer. I like owning the whole system: the interface, the API, the database, deployment and monitoring. I write code that is meant to run for years, not just for a demo.
After work, I run. Structured training, heart rate, pace, recovery and sleep are data I deal with every day. That is where my Garmin watch apps come from: they grow out of a runner's needs and are tested in my own training.
Technologies
Tools I use every day:
- Monkey C / Connect IQ
- Python
- TypeScript
- JavaScript
- REST APIs
- SQL
- Docker
- Linux
- CI/CD
Services
Connect IQ apps
Apps, widgets, data fields and watch faces for Garmin watches, built with runners and athletes in mind.
Web applications
Modern, fast browser applications — from a user dashboard to a complete product.
Backend & APIs
Servers, integrations with third-party services, secure sign-in and data processing.
Training data
Integrations with sports platforms and tools that turn workout data into practical guidance.
Contact
Mariusz Charusta Development
Mariusz Charusta
E-mail: charustamariusz@protonmail.com
Tax ID (NIP): 7752524643
Poland