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Arkadius Stefanski

Senior Software Developer & Teamlead

Hi, I’m Arkadius Stefanski, a Senior Software Developer and Teamlead based in Bremen, Germany. I build scalable backend systems and work primarily with PHP, Golang, Symfony, Elasticsearch, MySQL and Linux.

Bremen, Germany · German / Polish / English · 20+ years of experience

About Arkadius Stefanski

Arkadius Stefanski is a software developer and engineering leader with more than 20 years of experience in web and backend development. His focus is on reliable backend architecture, search, infrastructure-related systems and long-term maintainable software.

Over the years, he has worked across product, agency and infrastructure environments, combining hands-on engineering with technical leadership and mentoring.

Core technologies

  • PHP
  • Golang
  • Symfony
  • Elasticsearch
  • MySQL
  • Linux
  • Git
  • Team Leadership

Selected experience

Senior Software Developer & Teamlead — firstcolo GmbH

Apr 2020 – Present · Frankfurt am Main, Germany

Leading a development team while remaining hands-on in engineering scalable backend systems in a data-centre and infrastructure context. Responsible for roadmap planning, mentoring developers and driving architectural decisions.

Software Developer — team neusta Unternehmensgruppe

Jul 2014 – Mar 2020 · Bremen, Germany

Full-stack and backend software development across multiple client projects in one of Germany’s largest independent digital agencies.

Chief Technical Officer — Unit51 GmbH

Jan 2014 – Jun 2014 · Bremen, Germany

Led technical strategy and product development as CTO of an early-stage startup.

Senior Web Developer — construktiv GmbH

Dec 2010 – Dec 2013 · Bremen, Germany

Worked on social media platform development, Facebook applications, project management and Linux server configuration.

Open source & community

I’ve contributed to the Symfony framework and its documentation, and I regularly attend Symfony conferences and community events in Europe.

  • Symfony contributor
  • Documentation contributor
  • Conference attendee

Contact

The best places to find me are GitHub and LinkedIn: GitHub and LinkedIn.