Grigoriy Mikhalkin
Software Engineer at SIXT
Munich, Bavaria, Germany
Summary
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SeniorGrigoriy Mikhalkin is a staff-level software engineer based in Berlin with 11 years of experience building cloud-native, reliability-focused platforms and Kubernetes tooling. He has hands-on expertise in Site Reliability, platform engineering, Cluster API providers and bare-metal Kubernetes via his work on metal-stack and Cluster API at X-cellent, and currently contributes to SRE efforts at Sixt. A pragmatic back-end and DevOps engineer, he’s implemented authentication flows, graceful shutdowns, E2E test enhancements and automation across projects like headscale, containerlab and the Cluster API SIG. Comfortable in Go and Python, he has shipped microservices, operators and deployment tooling for companies from Lamoda to SimScale, and writes about infrastructure topics publicly. Colleagues rely on him for stabilizing complex distributed systems and for turning testing and configuration edge-cases into repeatable platform solutions.
11 years of coding experience
8 years of employment as a software developer
Stackoverflow
5,303reputation
728kreached
122answers
16questions
go
top-5%
csv
top-5%
python
top-5%
kubernetes
top-5%
Github Skills (35)
e2e-testing10
kubernetes10
docker10
back-end-development10
e2e-test10
oid10
user-authentication10
authentication10
containerization10
dockers10
cicd10
tailscale10
go10
kubernetes-pods10
cluster-api10
Programming languages (12)
Github contributions (5)
juanfont/headscale
Jun 2022 - Nov 2022
An open source, self-hosted implementation of the Tailscale control server
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 9 commits, 5 PRs in 4 months
Contributions summary:Grigoriy primarily contributed to the refactoring and decomposition of the OIDC callback method, indicating a focus on authentication and authorization within the system. They also addressed linting issues and made updates related to graceful shutdown procedures, suggesting involvement in the overall application stability and lifecycle management. These changes likely involved modifications to the core logic for handling user authentication and overall server management. The user also reverted a previous commit, showcasing an iterative development process.
tailscale-servertailscale-control-serverhostedwireguardtailscale
kubernetes-sigs/cluster-api
Mar 2021 - Jul 2021
Home for Cluster API, a subproject of sig-cluster-lifecycle
Role in this project:Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:10 reviews, 7 commits, 6 PRs in 4 months
Contributions summary:Grigoriy primarily focused on enhancing the E2E testing framework within the cluster-api project. Their work included adding support for file schemes and relative paths in component sources, allowing for greater flexibility in specifying test dependencies. Furthermore, they contributed to refactoring namespace creation in various test suites, improving the organization and maintainability of the test code base. Their contributions also touched upon controllers and bootstrap testing, indicating a broad understanding of the project's architecture and testing infrastructure.
apilifecyclesubprojectcluster-apisig
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