Marcel Soubkovsky - Logo

Selected project

Stepplr - Goal Tracking App

Goal-tracking app that breaks ambitious goals into smaller social steps.

Built the React Native and Firebase stack with onboarding and motivation loops.

Year

2021

Role

Full-stack mobile engineer

Focus

mobilehabit loopsFirebase
Stepplr progress tracking
Stepplr onboarding and dashboard
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Technologies & Tools

React NativeReduxTypeScriptFirebaseExpo

Tasks

Product engineeringFull-stack developmentProject management

Context

Big goals are intimidating. Stepplr was built around a simple idea: break goals into small, achievable steps and suddenly they feel manageable. Add a bit of motivation through trophies and the ability to work with friends, and the product starts to feel genuinely useful.

What I Built

I worked alongside Charles Bechaud, who handled marketing and UX/UI design. I owned the technical side: architecture, the React Native and Expo app, and the Firebase backend that kept the whole thing moving.

What I Am Proud Of

This was one of those projects that touched everything from UX prototypes to backend logic to release pipelines, so I got a full view of how the pieces fit together. It was a good reminder that a simple idea can still need a lot of careful engineering to feel smooth.

Stepplr also sharpened how I think about habit formation and user motivation, which is useful any time the product depends on repeat behavior.