Sebastian Zillessen

About

With a firm grasp on new technologies and a keen interest in large scale enterprise solutions, I strive to push the boundaries of innovation. My expertise in software development and architecture enables me to deliver robust, scalable applications that power businesses forward in a digital-first world.

Experience

• Teamleader Engineering & Senior Software Developer at Digitec Galaxus AG
  Jun 2025 - Present · 1 yr 1 mo

• Zühlke Group (8 yrs 3 mos)
  • Principal Architect and Line Manager
    Jul 2024 - Apr 2025 · 10 mos

  • Lead Software Architect and Line Manager
    Jun 2021 - Jul 2024 · 3 yrs 2 mos

  • Lead Software Architect
    Jan 2021 - Jun 2021 · 6 mos

• Analyst in Software Development at BlackRock
  Aug 2016 - Jan 2017 · 6 mos

• Pfeffermind (4 yrs)
  • Co-Founder
    Jan 2013 - Dec 2016 · 4 yrs

  • Head Of Development
    Mar 2013 - Jun 2015 · 2 yrs 4 mos

• Working Student in Software development at MHM HR
  Sep 2015 - Jul 2016 · 11 mos