Bremen, Germany

Arkadius Stefanski
Senior Software Developer & Teamlead

A software developer and engineering leader with more than 20 years of experience in web and backend development. Focused on reliable architecture, search systems, and maintainable code.

Backend specialist Team lead DE · PL · EN

About Arkadius Stefanski

Arkadius Stefanski is a senior software developer and teamlead based in Bremen, Germany, specializing in backend systems. He works with PHP, Golang, Symfony, Elasticsearch, MySQL, and Linux.

His background spans product, agency, and infrastructure sectors — combining hands-on engineering with technical leadership. He cares about thoughtful architecture, dependable search systems, and code that ages well.

Core Technologies

PHP

Golang

Symfony

Elasticsearch

MySQL

Linux

Git

Team Leadership

Experience

Senior Software Developer & Teamlead · firstcolo GmbH

Apr 2020 — Present

Frankfurt am Main

Team leadership with hands-on backend systems engineering in data-centre contexts. Roadmap planning, developer mentoring, and architectural decisions.

Software Developer · team neusta

Jul 2014 — Mar 2020

Bremen

Full-stack and backend development across multiple client projects at a major German digital agency.

Chief Technical Officer · Unit51 GmbH

Jan 2014 — Jun 2014

Bremen

Technical strategy and product development leadership for an early-stage startup.

Senior Web Developer · construktiv GmbH

Dec 2010 — Dec 2013

Bremen

Social media platform development, Facebook applications, project management, and Linux server configuration.

Open Source & Community

Symfony framework contributor, documentation contributor, and regular attendee at European software conferences.

Connect

GitHub @arkste

LinkedIn arkste

Symfony Connect arkadius