pacxiu

Frontend / Full Stack Engineer

Frontend / Full-Stack Engineer specializing in TypeScript, React, and Next.js, with extensive
experience building production-grade web applications across Web3, DeFi, and e-commerce. Strong
background in frontend ownership, wallet and blockchain integrations, multi-chain applications,
design systems, and full-stack development using Node.js, PostgreSQL, and Prisma. Product-
minded engineer with a strong focus on UI quality, maintainable architecture, and translating
complex technical workflows into polished, intuitive user experiences.


Yearly salary: $100,000

Hourly rate: $55

Nationality: 🇵🇱 Poland

Residency: 🇵🇱 Poland


Experience

Software Engineer
Oazo Apps
2021 - 2021
Worked on the Oasis.app frontend, a DeFi application used by MakerDAO users to manage their Maker Vault positions. Built and refined user-facing functionality in close collaboration with product designers and other frontend engineers within a small, focused team. Translated complex DeFi workflows into clear, polished interfaces, with particular attention to usability and implementation quality.
Software Engineer
MakerDAO
2020 - 2021
Worked across several DeFi products and internal initiatives within the MakerDAO ecosystem, contributing to both frontend and full-stack development. Contributed to earlier versions of Oasis, including maintenance and improvements to the Oasis Trade frontend and later work related to Oasis.app. Built functionality for an internal blockchain-based derivatives project, including an on-chain maker/taker order-book model designed around jurisdiction-specific regulatory requirements. Collaborated in a small team on the development and evolution of a shared design system and component library, improving consistency and reuse across multiple frontend applications. Implemented fiat on-ramp integrations, including MoonPay, connecting external payment flows with MakerDAO-related DeFi functionality.
Frontend Developer
Reckitt
2019 - 2020
Worked on an internal headless CMS platform used to manage content for consumer-facing brand websites, with frontend experiences rendered using Next.js. Developed reusable frontend components used on production brand websites, including Enfamil. Contributed to a headless commerce architecture integrating the CMS and frontend applications with Shopify. Maintained and improved existing brand websites outside the headless platform, delivering targeted fixes and enhancements for brands including Durex and Nurofen.
Frontend Developer
BEZobaw
2017 - 2017
Collaborated with an advertising agency on responsive and interactive web layouts for Orange. Implemented frontend interfaces from supplied designs and coordinated requirements and delivery with the agency’s management team.
Frontend Developer
Kreatywni Kreatywnym (Freelance work)
2017 - 2026
Developing websites and digital experiences for business clients, including landing pages, company websites, e-commerce projects.

Skills

css
defi
ethereum
ethereumjs
graphql
javascript
nextjs
node
postgres
react
tailwind
typescript
full-stack
english
polish