I build thoughtful web and mobile experiences, from complex React interfaces to the APIs and data behind them.
Projects
PERSONAL FINANCE APPLICATION
React · TypeScript · Vite · Tailwind CSS · TanStack Router · Axios · Go · Gin · GORM · PostgreSQL
A responsive finance workspace for transactions, transfers, accounts, budgets and goals. I built a typed React interface with filtering, sorting, CSV export and analytics, backed by a layered Go and PostgreSQL REST service. Deployed through AWS staging and production.
INDEPENDENT MOTORSPORT CONCEPT
React · TypeScript · Vite · Tailwind CSS · GSAP · Lenis
An independent motorsport story shaped around a measured horizontal desktop timeline and a vertical mobile flow. Scoped GSAP animations clean up across breakpoints, while the header adapts to each chapter. Hosted on AWS; unaffiliated with Audi AG.
MOBILE APPLICATION
Expo · React Native · TypeScript · TanStack Query · React Navigation · Go · PostgreSQL
An iPhone-first workout planner with reusable templates, calendar assignments and set-by-set execution. Transactional snapshots keep scheduled and historical workouts intact when a template changes; secure sessions and a Go/PostgreSQL API support the mobile flow.
About
Edinburgh, UK
I'm Kacper, a software developer and Computer Science (Software Engineering) graduate from Heriot-Watt University. I enjoy making complex interfaces feel clear, especially when they involve stateful workflows and real users making decisions.
I work across React interfaces, REST APIs, mobile apps and automated tests, and I like seeing a feature through from its first interaction to delivery. My commercial work spans editor development at dragNdrop and production database support at Pro-DBA.
Tools I use
React · TypeScript · JavaScript · Next.js · Redux Toolkit · Material UI v4 · Tailwind CSS · TanStack Router/Query
React Native · Expo · Playwright · Node.js · Go · Django REST Framework · PostgreSQL · AWS · Docker · GitHub Actions · Terraform
English (native/C2) · Polish (native)
Experience
DRAGNDROP
Built editor grouping and multi-selection, image-fill and progressive-loading interactions, workspace-aware template tags, and Playwright coverage.
Learn More →PRO DBA LIMITED
Production database support for Microsoft SQL Server and Oracle, including incident triage, resolution, and escalation.
PRS& (SAMSUNG)
Exceeded sales and service targets, and trained an L1 engineer on diagnostics and troubleshooting.
VIRGIN MEDIA O2
Tailored multi-product packages. Mastered in-store systems for device booking & refunds.
Education
BSC
CS ENG
Heriot-Watt University · 2:1 · 2021 — 2025
Final Year Project: User-centered design research for a React Native workout tool. Iterative testing, UX analysis, and mobile UI implementation.