Marcus S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Over the past 20 years, I have worked in a variety of roles that continually pushed me out of my comfort zone and required me to adapt quickly. Each position demanded clear communication, the ability to close technical gaps, and the resilience to handle new and complex challenges. ​ This combination of experiences has given me a broad technical foundation and a practical, people-focused way of working. It also allows me to communicate effectively with diverse teams and stakeholders, because I understand their different priorities and perspectives from having worn many of those hats myself Technical Stack: * Configuration Management: Puppet, CHEF * Cloud Solution: AWS * CI/CD: Gitlab CI, GoCD, Jenkins * Monitoring: Icinga2, Grafana, Prometheus * Containers: Docker * Scripting Languages: Python, Bash, Ruby * Version Control: GIT, SVN