k
kordianz

Kordian Z

@kordianz
Poland
English
About me
I’m a Software Engineer with professional experience building and maintaining web applications, backend services, APIs, databases, and internal business systems. My commercial background includes TypeScript, React, Node.js, NestJS, Fastify, Django, PostgreSQL, WebSockets, Docker, CI/CD, and modern frontend architecture. I work across the stack: from responsive user interfaces and complex application state to backend architecture, API design, database modeling, integrations, deployment pipelines, debugging, and performance improvements.... Read more

Skills

k
kordianz
Kordian Z
Offline • 
Average response time: 1 hour

See my services

Full Stack Web Applications
I will fix, debug or extend your react typescript web application
From$75 / projectMore details
API & Integrations
I will build or integrate your node typescript rest API
From$100 / projectMore details

Portfolio

Work experience

Jit_Team

Frontend Engineer

Jit Team • Full-time

Mar 2026 - Present • 5 mos

Working on modern web applications with React and TypeScript, focusing on feature development, refactoring, code quality, and technical direction. I also support less experienced developers through mentoring and code reviews, helping maintain good engineering practices across the project. My work includes React Query, React Router, Zustand, Docker, Jenkins, and CI/CD workflows.

ideacompiler

Software Engineer Kordian Zagaja

ideacompiler • Self-employed

Dec 2021 - Present • 4 yrs 8 mos

Self-employed freelancing jobs

Qarbon_IT

Backend Engineer

Qarbon IT • Full-time

Jan 2024 - Dec 2025 • 1 yr 11 mos

Worked on the development and maintenance of web applications across both backend and frontend. My responsibilities included building and extending backend functionality with Fastify, SQL, and PostgreSQL, contributing to React-based interfaces, and delivering bug fixes and improvements aimed at keeping releases stable and reliable.