Marko S.

Executive with 11+ years of experience in IT, specializing in Software Development

German, English

I'm a seasoned CTO who loves building teams, software and companies. Highlights: - Proven track record of building and scaling up successful teams, products, architectures and companies. - 15+ years p...see more

  • Information Technology, Data & Telecom
  • Engineering
  • C-Level & Leadership
  • Information Technology


  • Pre-vetted expert
  • Confirmed hourly rate
  • Available on short notice



Legal One GmbH
2 years
Current position
Aug 2020 - Present
Legal One GmbH is an owner-managed agency for agile software development in the field of legal tech, founded in 2014 in Berlin.

CTO & Co-Founder

5 years
Nov 2015 - Jul 2020
Comtravo is a successful, VC backed travel tech startup with 130 employees, significant operations and product, engineering and data science achievements. As co-founder and CTO built ...see more

VP of Engineering

Trademob GmbH
2 years
Apr 2014 - Oct 2015
Took over whole Trademob IT and organized Engineering into 4 teams (infrastructure, devops, data science, data engineering). Held interim CTO role and took care of Technical Product M...see more

Systems Architect

Trademob GmbH
2 years
Jul 2012 - Mar 2014
Built up the initial codebase and architecture of Trademob's DSP (Realtime Bidding Stack). Later scaled and managed DSP IT team. DSP eventually handled 140k+ QPS across 5 data centers....see more

Freelance Developer

3 months
Mar 2012 - Jun 2012
Assisted client in building and extending their location based ad server. Did heavy conceptual and implementation work on the core targeting engine. Key technologies were Ruby, Redis, ...see more

Database Engineer

5 months
Oct 2011 - Mar 2012
Spent 6 months fixing the backend architecture of a DSP (advertising platform) heavily relying on MySQL and stored procedures (not my idea). Enabled complete horizontal scalability and ...see more

Industries, roles and expertise

Industry experience

  • Information Technology, Data & Telecom

Role experience

  • Engineering
  • C-Level & Leadership
  • Information Technology


  • Software Architecture
  • Software Development