Przemysław Pierzchałka — ppierzchalka.is-a.dev

Frontend engineer focused on scalable architecture, AI integration, and mentoring. Outside work, I enjoy cycling, story-driven games, and the craftsmanship of mechanical watches.

About Me

I’m a frontend developer with over six years of experience building scalable web applications. I work with React, TypeScript, and modern frontend tooling to create clean, maintainable codebases. I care about thoughtful interfaces and a good developer experience, balancing performance and flexibility with long-term maintainability. My approach combines clear architecture with collaborative problem-solving, keeping each feature aligned with the product’s goals and quality standards.

Stack: React, RxJS, TypeScript

Experience

Lead Frontend Developer / Senior Frontend Developer — Vistex

Feb 2024 – present

I lead a frontend team building a data analytics platform while staying involved in day-to-day development. My role combines supporting the team, improving the developer experience, and coordinating closely with UX and QA.

Senior Frontend Developer / Frontend Developer — Xebia (formerly PGS Software)

Jan 2022 – Jan 2024

I built performant user interfaces for client projects using React and TypeScript. I helped improve design systems and contributed to architectural decisions, with a focus on code quality and developer experience.

Software Developer I – JavaScript / Junior JavaScript Developer — Vistex

Sep 2019 – Dec 2021

I worked on enterprise React applications, implementing new features and addressing technical debt. During this time, I progressed from junior to mid-level developer and developed my understanding of team workflows and frontend best practices.

Junior Web Developer — Deloitte Digital CE

Sep 2018 – Aug 2019

I supported frontend development for corporate clients as part of agile teams. I gained practical experience with HTML, CSS, and JavaScript while learning how to collaborate with developers and work within QA workflows.

Interests

Outside Tech

Away from the screen, I ride my mountain bike along forest trails, play squash, and enjoy story-driven games. I keep up with gadget and console news and appreciate well-crafted mechanical watches. I also love traveling, from bustling cities to quiet, remote places. At home, a curious Canadian Sphynx cat keeps things lively.

Web Tech

I’m interested in how frontend ecosystems evolve, particularly where performance, architecture, and developer experience meet. I enjoy working on scalable codebases and improving build systems, as well as exploring monorepos, typed APIs, and modular design.

AI at Work

I explore how AI can support everyday frontend development, from tools that improve productivity to integrating large language models and generative AI into applications. I’m particularly interested in how these capabilities shape user experience and the way teams work.

Mentoring

I enjoy sharing knowledge through tutoring, onboarding, and helping teammates work through technical challenges. I focus on strong foundations and maintainable code, supporting others as they develop their skills through collaboration.