Piotr Kaczowka

Operating as an independent Full Stack Contractor for various B2B clients, scale-ups, and product teams. I specialize in delivering high-performance web applications, modernizing frontend architectures, and building robust backend systems using the TypeScript ecosystem.

Key responsibilities and achievements:

• Frontend Excellence: Architected and delivered modern web applications using Next.js, React, and TypeScript, focusing on performance, modular UI design, and responsive layouts.

• Component Systems: Developed scalable, reusable UI component libraries utilizing MUI (Material-UI) and Styled Components to ensure design system consistency.

• Backend & API Development: Designed and implemented robust server-side applications, RESTful APIs, and GraphQL services using Node.js and NestJS.

• Cloud & Infrastructure: Managed end-to-end deployment workflows, configured CI/CD pipelines, and integrated scalable database solutions (PostgreSQL, MySQL).

• Client Consultations: Collaborated directly with business stakeholders to translate complex requirements into technical specifications and production-ready code.

Built server-side applications and frontend features within agile team environments, focusing on performance, automated testing, and modern deployment pipelines.

Key responsibilities and achievements:

• Backend Engineering: Built server-side applications using Node.js and NestJS, integrating with PostgreSQL databases.

• Testing & CI/CD: Applied Test Driven Development (TDD) practices and set up automated test runs with Jest in a CI/CD pipeline.

Developed and maintained highly scalable full-stack web applications serving approximately 100k active users per month, transitions from PHP monoliths to a cutting-edge TypeScript ecosystem.

Key Achievements & Responsibilities:

• Frontend: Built responsive, high-performance user interfaces with React, Next.js, and TypeScript. Developed reusable component systems using MUI and Styled Components.

• Backend & APIs: Created robust RESTful APIs and backend services using Node.js and NestJS. Integrated GraphQL with Apollo for efficient data fetching.

• Cloud & Microservices: Implemented event-driven workflows with AWS Lambda and designed reliable microservice-based systems using Serverless Framework.

• Databases & CMS: Designed and managed relational (MySQL, PostgreSQL) and NoSQL (DynamoDB) databases. Integrated Headless CMS solutions including Contentful and Dato CMS.