Cloud architecture
AWS and Azure, landing zones, multi-account strategies, cloud governance and cost optimization. Experience with more than 700 cloud accounts.
Lars Schiller
Cloud Security & DevOps
Senior Cloud Security Architect · DevOps Engineer · Security & Observability Engineer
Freelance consultant with more than 15 years of enterprise IT experience. I design, automate and secure cloud platforms on AWS and Azure – from landing zones and SIEM to observability and detection as code.
Focus
What I bring to your project
Remote, project-based and focused on traceable, automated solutions.
Security & SIEM
Microsoft Sentinel and Datadog Cloud SIEM, detection as code with Sigma and MITRE ATT&CK, audit logging, SCA/SAST and access recertification.
DevOps & CI/CD
GitHub Enterprise and GitHub Actions, migrations, workflow standards, Cloud Foundry and release management for business-critical applications.
Automation
Terraform, Bicep and Ansible, observability as code, automated secret rotation and Python tooling for Jira, Confluence and Datadog.
Experience
Selected engagements
Large enterprises and regulated industries, from software engineering to security architecture.
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since 06/2026
IT Security, Architecture & DevOps Consultant · Leasing and mobility services provider
Observability and detection as code with Datadog and Terraform, Sigma-to-Datadog conversion, automated secret rotation, GitHub migration and AppSec rollout across more than 60 repositories.
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2021 – 2026
Security Architect / Cloud Consultant · Major German energy group
Group-wide Cyber Defense Center for more than 700 cloud accounts (AWS & Azure) with Microsoft Sentinel as central SIEM, security governance and GitHub Enterprise.
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2019 – 2021
Cloud / DevOps Engineer · Automotive manufacturer
Migration of an application landscape to AWS with fully automated infrastructure (Terraform, Ansible, Jenkins).
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2009 – 2019
Software Engineer · Banking, payments, aviation, media
Enterprise backends with Java and Oracle, SEPA payments, data platforms and introduction of CI/CD.
Technologies
Skills
A selection – the full picture is in the profile.
Cloud & platform
Security & observability
Automation & CI/CD
Download
Profile
Both versions are anonymized. Client names are available on request. German versions are on the German page.
Contact
Have a project in mind?
Send me a short project description, timeframe and engagement model. I will get back to you promptly.