Open to opportunities

Piotr Basiński

@piotrbasiski

Message

I build React design systems and payment experiences for multi-brand fintech platforms.

Poland

Message

What I'm looking for

I'm looking to build and lead high-quality frontend experiences, especially design systems, component architecture and multi-brand products, while shaping code standards and mentoring engineers.

At Equals Money, I built the 60-component design system behind its multi-currency business money platform, including theming for more than 25 white-label brands. I also led the frontend cards domain, rewriting 21 screens behind feature flags before removing legacy code.

I've delivered production web and native mobile experiences from one Next.js codebase using Capacitor, including Apple Wallet and Google Wallet card provisioning. My scope grew from delivering domain tasks to defining work, advising on design, making architecture decisions and mentoring a mid-level developer.

Before Equals Money, I worked across insurance product teams at ERGO Technology & Services, building claims, motor-insurance and call-centre pricing products. I also delivered API-to-interface client projects at Code Fibers and built native iOS apps in Swift at Risen.

I review code across domains and help set frontend standards through custom ESLint rules, TypeScript upgrades and CI fixes. I enjoy design systems, component architecture, white-label theming, code review and mentoring.

Experience

Work history, roles, and key accomplishments

Senior Frontend Engineer

Equals Money

Sep 2022 - Aug 2026 (3 years 11 months)

Frontend engineer on a multi-currency business money platform, delivering features across balances, cards, and recipients domains. Started the design system from scratch, grew it to 60 components, and led the cards domain frontend rewrite.

React TypeScript Next.js Vanilla Extract Storybook Tanstack Query Capacitor Jest Cypress NestJS Express PostgreSQL MongoDB AWS Git Figma ESLint CI CD

React Engineer

happn

Jul 2022 - Aug 2022 (1 month)

Short-term React and TypeScript contract covering fixes and feature work. Engagement ended when happn closed its Polish office.

React TypeScript

Full-Stack JavaScript Developer

ERGO Technology & Services

Jan 2020 - Jun 2022 (2 years 5 months)

Worked across three product teams in the insurance domain, contributing to frontends and backends-for-frontends. Built Ergo Claims for ergo.de and shipped a reusable micro-frontend with its own backend.

React TypeScript styled components Redux toolkit RxJS NestJS PostgreSQL AWS Micro Frontends

Full-Stack JavaScript Developer

Code Fibers

Dec 2017 - Dec 2019 (2 years)

Delivered client projects from API to interface, including Express.js REST APIs, React and Vue frontends, and Jest tests. Shipped a meal-delivery platform, a vocabulary app, a law-firm contract generator, and a shipping API.

React React Vue MongoDB PostgreSQL Jest Redux toolkit RxJS styled components Swift

iOS Developer

Risen

Jul 2016 - Nov 2017 (1 year 4 months)

Built native iOS apps in Swift from scratch, each taken from empty project to the App Store, including a venue finder, a dating app, an angling-spot finder, a food ordering app, and a loyalty platform.

Swift iOS Development