pietruszka

Senior React Developer

Senior Front-end Engineer with 8+ years of experience architecting scalable, full-stack web applications using TypeScript, React, and Node.js. Product-focused developer who excels in Agile/Scrum environments, specializing in modernizing legacy systems and rapid prototyping with cross-functional teams. Currently leveraging Generative AI to enhance productivity. Passionate about continuous learning, with a current focus on mastering React Native to deliver seamless cross-platform user experiences.

Experience: 8 years

Yearly salary: $110,000

Hourly rate: $55

Nationality: 🇵🇱 Poland

Residency: 🇵🇱 Poland

Experience

Front-end Developer

Aptimyz

2025 - 2026

Designing and developing a dashboard application for managing large-scale retail data sets, leading migration of a large-scale legacy project from jQuery to React.js and TypeScript, building a reusable component library with 30+ components, creating a Point of Sale application prototype, and working in a Scrum-based team.

Front-end Developer

NuklAi

2022 - 2024

Leading front-end development team, mentoring junior developers, developing and modernizing a blockchain marketplace, designing and managing a cross-company UI component library, building full-stack prototypes, establishing CI/CD pipelines, and developing landing pages for marketing campaigns.

Backend Developer Lead

CodersCrew

2022 - 2024

Leading a team of developers, coordinating project delivery, architecting backend infrastructure, building front-end applications, establishing automated CI/CD pipelines, mentoring team members, and designing MongoDB database schema.

Front-end Developer

JustRelate

2019 - 2022

Developing and maintaining Scrivito SDK API and UI CMS, migrating projects to React and TypeScript, building internal tools, collaborating with clients, participating in Scrum ceremonies, and conducting internal workshops.