Михайло

MYKHAILO DORONIN
DevOps Engineer
Kyiv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | LinkedIn | GitHub

PROFESSIONAL SUMMARY
DevOps / Platform Engineer with production experience operating a Kubernetes-based government
infrastructure platform (~25 microservices across 4 environments). Owns the full platform lifecycle: GitOps
pipelines, secrets management, service mesh, and observability. Diagnosed and resolved critical
production incidents including Consul quorum loss, CNI failures, and OOMKill cascades. Pursuing CKA
certification.

PROFESSIONAL EXPERIENCE

DevOps / Platform Engineer • GIOC — Main Information & Computer Center | 0.2024 – Present
– Operate and maintain Kubernetes clusters across 4 environments (dev / staging / preprod /
production) hosting ~25 microservices for the kyivcity.gov.ua government platform; on-call ownership
for cluster reliability
– Deployed and operate HashiCorp Vault in HA mode (Consul backend, 3-node quorum) for centralised
secrets management across all environments; integrated SOPS + age encryption for GitOps secret
workflows
– Designed and maintain GitLab CI/CD pipelines for ~25 services with ArgoCD-based GitOps delivery;
standardised Helm Chart templating and multi-environment promotion workflows
– Deployed Linkerd service mesh across all 25 microservices, enabling mTLS, zero-trust networking,
and traffic observability without application code changes
– Established full observability stack (Prometheus, Grafana, Loki, Tempo) with SLO-based alerting and
structured on-call runbooks — reduced mean time to detect incidents from hours to ~15 minutes
– Automated routine operational tasks with Python and Bash; built n8n-based workflow orchestration
(health checks, alerts, MS Teams notifications) — saving ~5 hours/week of manual monitoring work
– Implemented Kyverno admission policies for cluster governance and security guardrails across
namespaces

CI/CD & Build Engineering (Mobile, Part-time) • NDA | 08.2025 – Present
– Designed and maintained GitLab CI/CD pipelines for a Kotlin Multiplatform project targeting Android,
iOS, and Desktop; automated build, test, and artifact packaging stages
– Configured Firebase App Distribution for pre-release delivery and environment-specific build variants
(dev / staging / prod); enabled automated distribution to QA testers
– Set up environment configuration management (secrets injection, signing keys) using CI variables
and encrypted files — separated dev, staging, and production credentials
– Delivered a production-ready mobile MVP within 1 week, managing the full build and release pipeline
to both Google Play (internal track) and App Store Connect

TECHNICAL SKILLS
DevOps & Platform
CI/CD & GitOps: GitLab CI/CD, ArgoCD, GitHub Actions
Orchestration: Kubernetes, Helm, Docker
Infrastructure: Terraform, AWS, Linkerd, Kyverno
Secrets & Config: HashiCorp Vault (HA), Consul, SOPS/age
Observability: Prometheus, Grafana, Loki, OpenTelemetry
Automation: Python, Bash, n8n
Mobile CI/CD
Build Pipelines: Firebase App Distribution, Google Play, App Store Connect
Artifact Stores: MinIO, GitLab Registry, Docker Hub
Testing: Testkube, ReportPortal
Notifications: MS Teams, n8n webhooks
Mobile Targets: Android, iOS (KMP), Desktop (JVM)
EDUCATION
Kyiv National Economics University (KNEU) | Bachelor's Degree in Cybersecurity | 2024 – 2028
(expected)

LANGUAGES
Ukrainian — Native | English — B2 Upper Intermediate (EF SET Certificate)

ADDITIONAL
– Open to remote opportunities in Europe and US time zones
– Pursuing CKA (Certified Kubernetes Administrator) certification
– Active Telegram channel focused on DevOps and software engineering topics