https://github.com/marchenkovit/marchenkovit
https://github.com/marchenkovit/marchenkovit
Last synced: about 1 month ago
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- Host: GitHub
- URL: https://github.com/marchenkovit/marchenkovit
- Owner: marchenkovit
- License: other
- Created: 2026-03-27T19:34:41.000Z (3 months ago)
- Default Branch: main
- Last Pushed: 2026-05-08T13:27:35.000Z (about 1 month ago)
- Last Synced: 2026-05-08T15:36:46.429Z (about 1 month ago)
- Size: 105 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Codeowners: .github/CODEOWNERS
- Security: .github/SECURITY.md
- Notice: NOTICE
Awesome Lists containing this project
README
[](mailto:marchenko.vitaliy1@gmail.com)
[](https://t.me/m_a_r_c_h_e_n_k_o)
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[](./LICENSE)
> [!IMPORTANT]
> **© 2026 Vitalii Marchenko · All Rights Reserved**
> This repository is provided for **viewing only**. Forking, cloning, copying, modifying, or redistributing any content (source code, SVG graphics, README, configuration, or design) is **strictly prohibited** without prior written permission from the author.
> Unauthorized use constitutes a violation of copyright law and will be pursued under applicable legal remedies. See [LICENSE](./LICENSE) for full terms.
---
## 👨💻 About Me
Site Reliability Engineer / DevOps with **11+ years** of hands-on experience operating and automating high-load, mission-critical infrastructure at scale.
- 🏗️ **Infrastructure at scale:** 100,000+ VPS · 10,000+ dedicated servers · multi-region AWS
- 🔐 **Background in Information Security** (Zaporizhzhia National Technical University)
- ⚡ **Focus areas:** high-load systems, automation, cost optimization, secure network architecture
- 🌍 **Based in Ukraine**
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## 🎯 Key Achievements
| Area | Impact |
| --- | --- |
| 🛡️ **Reliability** | Designed fault-tolerant infrastructure supporting 99.9%+ uptime across multi-region deployments |
| ⚙️ **Automation** | Codified infrastructure with Terraform + Ansible/Chef, cutting manual provisioning from hours to minutes |
| 📈 **Scale** | Operated fleets of 100k+ VPS and 10k+ dedicated servers under continuous load |
| 💰 **Cost optimization** | AWS spend reduction through right-sizing, spot instances, and reserved capacity planning |
| 🔒 **Security** | Hardened network perimeters, IAM policies, secrets management, and compliance controls |
---
## 📈 Career Timeline
---
## 🛠️ Tech Stack
**☁️ Cloud & Infrastructure**
**🔧 Infrastructure as Code**
**📦 Containers & Orchestration**
**🐧 Operating Systems**
**🚀 CI/CD & Automation**
**📊 Observability & Storage**
**🌐 Networking & VPN Protocols**
**💻 Scripting & Tools**
**🔐 Security**
**🧑💻 Application Runtimes I Operate in Production**
---
## 📜 Certifications
| | Course | Provider | Date | Score | Verify |
| :---: | --- | :---: | :---: | :---: | :---: |
| 🐧 | **Linux System Administration** | ITEA Academy | Jul 2023 |  | [№ 4020425002](./assets/certs/itea-linux-system-administration.pdf) |
| ⚙️ | **DevOps** | ITEA Academy | Dec 2023 |  | [№ 4010324007](./assets/certs/itea-devops.pdf) |
---
## 🏗️ Infrastructure Architecture
**Design principles I follow:**
- 🔁 **Multi-region by default** — active-active where possible, active-passive with DNS failover where required
- 💾 **Immutable backups** — automated snapshots + cross-region replication + periodic restore drills
- 📜 **Git as single source of truth** — every production change goes through a reviewed commit
- 📊 **SLO-driven operations** — error budgets, burn-rate alerts, post-mortems for every incident
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## ⚡ Daily Workflow
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## 🐍 Contribution Activity
