Piotr Matyjasik

Co-Founder / CPO @ TesterArmy (YC P26)

About

Building the future of autonomous QA testing

Country

United States

City

San Francisco

Industry

Computer Software

Skill

Supabase, Jest, React Router, Express.js, Server Side JavaScript, Gitlab, Product Development, Social Media Marketing, Artificial Intelligence (AI), React Native, JavaScript, React, React.js, Typescript, Next.js, Front-End Development, Debugging, Testing, TailwindCSS, Git

Experience

Co-Founder / CPO

TesterArmy (YC P26)

2026-3 - Present · 7 mos

→ tester.army

Frontend Developer

Grupa Wirtualna Polska

2023-5 - 2026-3 · 2 yrs 11 mos

I'm responsible for: - building, testing, and improving frontend features that save time, deliver exceptional user experiences, and provide actionable insights from user data - developing, testing, debugging backend and frontend software, including databases, with a focus on functionality, quality, and performance - designing and developing AI agents to automate workflows and enhance product capabilities - cooperating cross-functionally with product teams, DevOps, system architects, and development teams - participating in projects from defining requirements to implementing new functionalities and resolving issues - supporting knowledge sharing and information transfer across teams

Frontend Developer

Fujitsu

2022-9 - 2023-5 · 9 mos

I was responsible for: - developing an application for displaying and manipulating complex data - defining business requirements and project milestones - resolving frontend and backend issues - cross functional cooperation and knowledge sharing

Frontend Developer

eTechnologie.pl - elearning, rozwój, AI

2021-6 - 2022-9 · 1 yr 4 mos

I was responsible for: - contributing to design, development, implementation and improvement of eLearning and eCommerce platforms - testing front-end features and functionalities - identifying and troubleshooting problems - cooperating with business & other product related teams