Сергій

Serhii Ostrikov, DevOps Engineer (Remote Only)
Personal Portfolio Website: ostrikov.org Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
Linkedin: [відкрити контакти](див. вище в блоці «контактна інформація») Telegram: @u42kbit
Location: Kharkiv Region, Zmiiv (UTC +3) Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)
Skills
• Languages - English (Intermediate), Ukrainian (Fluent), Russian (Fluent)
• Networks and TCP/IP - Switches, Routers, Ethernet, IPv4, TCP/UDP, DNS, DHCP, HTTP, SSH
• Linux and Windows Server Administration - Disks, Filesystems, Processes, AD, VPNs, Nginx, HAProxy, Email
• Programming / Scripting – Bash (curl, awk, sed, grep), Python, Node.js, PHP, C#, Java, C/C++, Rust, Go, Zig, etc.
• Version Control Systems (VSC or SCM), CI/CD - Git, GitLab CI, GitHub Actions, Jenkins, Git hooks, GitOps pipelines
• Cloud – AWS (EC2, S3, VPC, RDS, IAM, Elastic Beanstalk, Lambda, ECS, EKS Fargate), GCP, Azure Basics
• IaC (Infrastructure as Code) – Terraform, Terragrunt, Packer, Ansible, Helm, K8S Manifest files
• SQL and NoSQL Databases - MySQL, PostgreSQL, Redis, Elastic Search
• Virtualization and Containers - Docker, Docker Compose, KVM, K8S
• Containers Orchestration – Kubernetes (GKE, EKS), Helm Charts, Manifest files, GitOps with ArgoCD
• Monitoring - Prometheus, Grafana, Elastic | ELK (Elastic Search, Kibana, LogStash, Beats)

Work Experience
• DevOps | Developer at small-scale gaming services company Mar 2023 / Present, Remote
Collaborated with developers to manage and maintain various game servers, websites, and bots for them.
Developed Discord and Telegram bots with Python (discord-py, python-telegram-bot).
Deployed applications onto EC2 servers, managed databases using RDS, ensuring scalability, reliability, and high availability.
Optimized monthly AWS bill for 5% - 15% by rewriting and improving existing infrastructure.
Used CI/CD, Automation and IaC tools: Terraform, Packer, Ansible, Bash, Jenkins.

Projects
• Personal website – ostrikov.org, projects, blogs and everything a personal website should have!
Extremely cost effective solution for website, only 1.5$ per month with TLS/SSL Certificates and CDN caching!
Removes 100% of manual work on the developers and DevOps engineers side, by automation via GitLab CI pipelines.
Utilizes IaC, CI/CD, GitOps, with tools such as: Git, GitLab CI, Terraform, AWS Cloud (S3, CloudFront CDN, Rotue53).

• Production ready PHP Application pipeline - flexible multi-environment AWS Elastic Beanstalk setup for PHP app.
Uses multirepo Git setup, with GitLab CI pipelines to deploy infrastructure (GitOps) and application.
Utilizes AWS (Elastic Beanstalk, EC2, VPC, IAM), GitLab CI, Terraform, Docker, PHP, MySQL, Bash and many more.
Also check out a DrawIO chart of the infrastructure and full list of technologies sections!

• Kubernetes microservice projects – built microservice applications with databases according to latest DevOps best practices.
Such setups allow agile development and ensure good scalability, self-healing, stability. Infrastructure and cluster state is
managed via IaC tools, which allow for safe containers deployments and rollbacks when something goes wrong!
Utilizes K8S Clusters (provisioned via Terraform), Docker, ArgoCD GitOps, Helm Charts, Manifests, Node.JS, Bash.
Here is the example of such project – link.

Education
Kharkiv National University of Radio Electronics (nure.ua) Bachelor Degree, Sep 2022 / Present

Miscellaneous
DevOps Engineer (1+ years) | Programmer (3+ years) | Student at NURE University.
My hobbies are DevOps, any kind of programming, information security, nutrition, sports, politics, blogging (ostrikov.org)
I love to explain how certain things work or dig a research on previously unknown (or scary!) topics and will always remain your
company's spirit. I admire discipline and responsibility in people, and expect same from myself.