Vasily Sliouniaev
Principal Software Engineer at Workday
Dublin, Ireland
Summary
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Rockstar🎓
Top SchoolVasily Sliouniaev is a Principal Software Engineer based in Dublin with 12 years of experience building and operating cloud-native systems at scale. He blends backend and DevOps expertise—particularly around Kubernetes, Prometheus, and Helm—having improved CI/CD, observability, and operator components in widely used open-source projects like prometheus-operator and community Helm charts. At companies from Greenfinch to Workday and Walmart Labs he progressed from developer to principal-level roles, driving reliability and deployment automation for complex distributed services. Known for pragmatic infrastructure changes (e.g., admission webhooks, config reloaders, and test automation) he quietly focuses on operational robustness that prevents incidents before they surface. His background in robotics and mechanical engineering gives him a systems-thinking approach to software and infrastructure design.
12 years of coding experience
13 years of employment as a software developer
BE Mechanical Engineering, BE Mechanical Engineering at University College DublinMSc Robotics, MSc Robotics at University of Plymouth
English, Russian
Stackoverflow
463reputation
14kreached
11answers
0questions
Github Skills (24)
kubernetes10
docker10
bash10
dockers10
cicd10
automation10
prometheus10
go10
helm10
kubernetes-pods10
yaml10
alarmmanager10
automations10
devops10
notificationmanager10
Programming languages (12)
Github contributions (5)
prometheus-community/helm-charts
Oct 2018 - Dec 2021
Prometheus community Helm charts
Role in this project:
DevOps Engineer
DevOps EngineerContributions:116 reviews, 63 commits, 33 PRs in 3 years 2 months
Contributions summary:Vasily primarily focused on improving the CI/CD pipeline and related automation for the Prometheus Operator Helm chart. Their contributions included updating scripts used for CI testing, adjusting configurations for test environments (like Minikube), and removing unnecessary steps. They also made changes to the deployment process, upgrading core components, and modifying the configuration for the node exporter port. This work streamlined the testing and deployment of the Helm chart, indicating a focus on operational aspects of the project.
chartshelmhelm-chartskubernetesprometheus
prometheus-operator/prometheus-operator
Jul 2018 - May 2020
Prometheus Operator creates/configures/manages Prometheus clusters atop Kubernetes
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:39 commits, 30 PRs, 2 pushes in 1 year 11 months
Contributions summary:Vasily primarily contributed to the Prometheus Operator project by modifying configuration and code related to alertmanager and config reloader components. They focused on increasing memory limits, implementing statefulset ordinal numbers for the config reloader, and ensuring proper functionality within a Kubernetes environment. Additionally, the user updated dependencies like Thanos, demonstrating familiarity with the project's integrations. The user also added admission webhooks for Prometheus rules, to validate that they are valid, and updated the compatibility matrix.
clustersoperatorprometheus-operatorkubernetesatop
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