About me
My name is Jan Weisssieker. As an IT consultant and developer, I support companies in planning, implementing and securing their IT infrastructure and software projects.
Background
With almost 20 years of experience in the IT industry, I bring in-depth knowledge in software development, IT security, cloud infrastructure and IoT. My career path led from system administration through DevOps and cloud engineering to security and leadership - including founding my own IT company. I work with both startups and established companies, placing particular emphasis on sustainable, secure and maintainable solutions.
Focus Areas
IT Security & Compliance
Security audits, penetration testing, compliance consulting and securing IT systems.
Software Development
Full-stack development with modern technologies - from web applications to backend services and APIs.
Cloud & DevOps
Building and managing cloud infrastructures, CI/CD pipelines and container orchestration.
IoT & Embedded
Firmware development, sensor integration and communication protocols for connected devices.
Professional Experience
Expert Information Security
DKV Mobility
2023 - present
Software Engineering Teamlead
CleverShuttle
2022 - 2023
IT Operations Manager
Digistore24
2019 - 2022
Senior DevOps Engineer
diconium
2018 - 2019
DevOps Engineer
Westernacher Solutions
2016 - 2018
DevOps / System Administrator
Trusted Shops
2013 - 2016
Co-Founder & Managing Director
Weisssieker EDV-Service / Blacklight IT
2008 - 2012
System Administrator
denkwerk
2006 - 2013