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Available for full-time projectsSoftware developer for product teams: Next.js / TypeScript / React Native, remote or Krakow.
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SaaS product

Spendshare

A web application for managing shared finances, simplifying expense tracking, receipt digitization, and real-time budget planning.

Spendshare

Technologies

Next.js
TypeScript
Supabase
Tailwind CSS

Key elements

  • Shared expense tracking
  • Receipt digitization
  • User-to-user settlements
  • Budget planning

Problem

Shared expenses become messy very quickly, especially when settlements, receipts, and budgeting all live in different places. Spendshare was designed to bring that workflow into one clear system.

Solution

The application lets users record expenses, organize them by context, and instantly see who paid for what. Receipt digitization adds another practical layer by reducing the need to manually copy data into spreadsheets or notes.

Outcome

This concept shows how I approach SaaS products: start with a concrete user problem, then build a simple system around that need. The value here comes from clarity and usability, not feature overload.

Other projects

See more work from my portfolio.

Plenti

Plenti

Full-stack & Mobile Developer at Plenti. I co-built the electronics rental platform end-to-end: from the Next.js website and React Native app to analytics, releases, and product processes.

Mio Home

Mio Home

Full website implementation for Mio Home: homepage, 3-part offer, about page, portfolio with 16 projects, contact page, blog, plus PostHog analytics and Resend email integration.

Bike Computer

Bike Computer

A custom training platform for cyclists that combines activity analytics, workout planning, Strava and Zwift integrations, and AI-powered support.

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I've been working on projects for clients for 6 years