Senior Software
Engineer

May 2022 – Present · Remote

• ▸Technical Lead for GitHub Scale Sets, managing thousands of servers for GitHub, Copilot, and Actions.
• ▸Architected GitHub's instance provisioning service across GitHub data centers, Azure, and AWS.
• ▸Led high-severity incident response and root-cause investigations for kernel and Go runtime defects.
• ▸Implemented automated Azure cleanup system, saving over $1M in annual infrastructure costs.
• ▸Technical Lead for IPv6 adoption strategy and company-wide migration automation.
• ▸Official mentor and coordinator for Temporal workflows, defining best practices across the org.

Jun 2021 – May 2022 · Remote

• ▸Designed and implemented CloudQuery SaaS platform core features and infrastructure.
• ▸Architected and automated deployment pipelines and monitoring strategies.
• ▸Led the design and implementation of the CloudQuery Policy feature.

Feb 2019 – May 2021 · Remote

• ▸Delivered the initial HCP Vault prototype within four weeks.
• ▸Designed and implemented the Host Manager and HCP Vault control plane using Uber Cadence workflows.
• ▸Contributed to Vault Core: Filtered Paths, Integrated Storage (Raft), and Vault Agent.
• ▸Identified and fixed four SEV-1 security vulnerabilities in Vault Enterprise.

Dec 2016 – Jan 2019 · Essen, Germany

• ▸Migrated critical web applications from on-premises to AWS.
• ▸Developed Go-based tools: Kubernetes Service Brokers, autoscaling tools, and Prometheus exporters.
• ▸Automated Kubernetes provisioning and upgrades using Terraform, Packer, and Ansible.

Aug 2014 – Nov 2016 · Düsseldorf, Germany

• ▸Founder and Engineering Lead of the internal "Production Line" project.
• ▸Built and operated a Docker Swarm cluster with 50+ nodes.
• ▸Developed Terraform modules for AWS and containerized core applications.