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KostLinux/README.md

👋 Hi, I'm Christofher Koest

DevOps Engineer & Entrepreneur | Transforming Businesses Through Cloud Innovation

Portfolio LinkedIn Email


🚀 About Me

As an expert in development operations (DevOps) with a business mindset, I help companies achieve peak efficiency within months.

  • 🔭 Currently: Senior Site Reliability Engineer @ CARIAD Estonia AS (Volkswagen Group)
  • 💼 Experience: 5+ years in DevOps, Cloud Architecture, and Platform Engineering
  • 🌱 Passionate about: Cloud Innovation, Automation, and Team Mentorship
  • 💡 Achievements: 80%+ efficiency boost at VW Group | 50%+ cost reduction across multiple companies
  • 📚 Recommend: "12 Things Not Taught In School" by Roland Tokko
  • Fun fact: My first diploma project got to Github Archive project
  • 🎯 Focus: Building scalable, cost-efficient cloud solutions & developing Golang automation tools

🌟 Key Highlights

🚀

5+

Years Experience

💰

50%+

Cost Reduction

📈

80%+

Efficiency Boost

👥

7

Engineers Mentored

🎓

100%

Student Success


🎯 What I Do

🔧 DevOps Engineering
  • ☁️ Cloud Architecture: Building cost-efficient applications via AWS and Azure using managed and serverless solutions
  • 🔄 GitOps & CD: Implementing continuous delivery with ArgoCD and Flux following AppOfApps principles
  • ⚙️ Kubernetes: 5+ years managing clusters, operators, applications, and stateful/stateless workloads
  • 💰 Cost Optimization: Achieved 50%+ cost reduction through operational and infrastructure optimizations
  • Performance: Significantly improved pipeline speeds and application performance through code optimizations
  • 📋 Process Design: Built release management, development workflows, and risk analysis processes from scratch
🛡️ Site Reliability Engineering
  • 👁️ Observability: E2E monitoring via ELK, New Relic, AWS CloudWatch, and Azure Metrics
  • 🚨 Incident Management: Reduced response time from hours to minutes (20-45 min average resolution)
  • 🐛 Code Optimization: Contributing to application improvements, fixing critical bugs and memory leaks
👨‍💼 Leadership & Mentorship
  • 🎓 Mentorship: Guiding juniors through practical and theoretical tasks toward career goals
  • 📊 Business Development: Experience in startup growth and FinOps from founding Wisepace
  • 📁 Project Management: Led 20+ teams across software development, DevOps, and platform engineering
💻 Software Development
  • 🏗️ Architecture: Experience with Hexagonal, MVC, Microservices, and Event-Driven architectures
  • 📖 Principles: Strong knowledge of SOLID, 12-factor, conventional commits, and semantic versioning
  • 🌐 Coding Principles: Founded coding principles page to share best practices
  • 🤝 Open Source: Contributed to WebCheck, Gin Gonic, Edu01, and other public repositories

🛠️ Tech Stack & Skills

☁️ Cloud & Infrastructure

AWS Azure VMware

📝 Infrastructure as Code

Terraform Ansible AWS CDK CloudFormation

🐳 Containers & Orchestration

Kubernetes Docker Rancher

🔄 CI/CD & GitOps

GitHub Actions GitLab CI ArgoCD

📊 Observability & Monitoring

Prometheus Grafana New Relic

💻 Programming Languages

Go Python PHP Shell Script Java Kotlin JavaScript

🗄️ Databases & Message Queues

MySQL Postgres MongoDB RabbitMQ


🏆 Professional Certifications

AWS Cloud Practitioner GitOps Fundamentals GitOps at Scale GitOps Enterprise

  • 🏅 AWS Cloud Practitioner | Amazon Web Services | 2023
  • 🏅 GitOps Fundamentals | Codefresh | 2023
  • 🏅 GitOps at Scale | Codefresh | 2023
  • 🏅 GitOps Enterprise | Codefresh | 2025

❤️ Beyond Work - Personal Interests

🧠 Neuropsychology

I study neuropsychology to understand human behavior and brain working principles. This knowledge helped me found Wisepace, inspired by Andrey Kurpatov's works on neuropsychology and business development.

🚗 Automotive

As a car enthusiast, I maintain and repair my vehicles independently. This hands-on approach not only saves money but also satisfies my passion for automotive engineering.

🌐 Web3

I'm passionate about Web3 and actively invest in cryptocurrency. Despite current corporate dominance in Web2, I believe Web3 will significantly impact the future of internet technology.


☕ Support Me

Buy Me A Coffee


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