Олексій

Oleksii Liubko
DevOps Engineer
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)

Summary
Experienced DevOps Engineer with over 8 years of success delivering secure, scalable,
highly available AWS, Azure, and On-prem solutions. Proficient in CI/CD pipelines
(GitLab, GitHub Actions, Azure DevOps, BitBucket / Bamboo, Jenkins, etc),
Infrastructure as Code tools (Terraform / Terragrunt, CloudFormation), containerization
(Kubernetes, AWS ECS, Docker, etc), and monitoring/logging (AWS CloudWatch,
Prometheus, Grafana, DataDog, New Relic, Zabbix, etc). Skilled in Python and
Bash/Shell scripting. Experienced in managing Linux. A team player and effective
communicator who excels in problem-solving. I am committed to continuous learning and
applying industry best practices to optimize cloud performance and costs.

Professional Experience
Company: Rollique
Duration: Dec 2023 – present
Role: DevOps Engineer
Project Description: Intermate – is one of the largest social agencies in the DACH region (Germany,
Austria, Switzerland) which allows bloggers and advertisers to unite in one place
Responsibilities: * designed, developed, and managed highly available, cross-region AWS
infrastructure via Terraform from MVP to profitable production;
* Moved many legacy CI/CD pipelines from Jenkins to GitLab
* Improved security posture of the cloud infrastructure to make it compliant with
SOC 2
* Reduced costs of the cloud infrastructure.
Technologies: Amazon Web Services (AWS), AWS EKS, Jenkins, GitLab, Continuous
Integration and Continuous Delivery (CI/CD), Infrastructure as code (IaC),
Terraform/Terragrunt, Docker, Kubernetes, RabbitMQ/Kafka, Redis, MongoDB

Project Description: Datavision – part of a project that sniffs traffic inside the telecommunication
network
Responsibilities: * organized CI/CD pipelines for new services in GitLab;
* Rewrite Puppet’s manifest to Ansible playbook
* Setup new infrastructure environment and deploy applications

Technologies: vSphere, Centos OS, GitLab, Continuous Integration and Continuous Delivery
(CI/CD), Puppet/Ansible, Docker, RabbitMQ, MongoDB, MariaDB, ClickHouse

Company: GlobalLogic, Kyiv
Duration: Dec 2020 – Dec 2023
Role: DevOps Engineer
Project Description: SafeGuard Cyber - is a cloud-based technology that provides customers with
security and communication risks across Social Media Compliance Solutions
(WhatsApp, Telegram, Slack, MS Teams, LinkedIn, M365 etc.)
Responsibilities: * Created a new data center in the Europe region that match GDPR
* Implemented Continuous Integration/Continuous Deployment
* Fully Automated environment build and provisioning using IaaC tools
(Terraform/Ansible)
* Improved cloud infrastructure on AWS (Route53, Cloudfront, WAF, ALB/NLB,
EC2, S3, and RDS, including backups AWS Backup, patches, and scaling)
* Implemented logging system as ELK stack
* Implemented monitoring system as Prometheus and Grafana
 * Cost Optimization of more than 20% cost of billing.
Technologies: AWS, Terraform, Ansible, Python, Bash, Bamboo, Git, PostgreSQL, MySQL,
Prometheus, Grafana, ElasticSearch, Cassandra, RabbitMQ/Kafka, Redis

Company: Procesica, Kyiv
Duration: Oct 2018 - Dec 2020
Role: DevOps Engineer
Project Description: A startup that helps companies with aggregation distributes tasks between
executors and optimisation processes inside company
Responsibilities: * Designing and implementing Continuous Integration, Continuous Delivery and
Continuous Deployment pipelines for a range of projects and environments
including Front End, Back end, Databases
* Automating environment build and provisioning using containerization and
orchestration tools with Docker/docker-compose, Cloud/Hosting (AWS, Azure,
DigitalOcean)
* Actively manage, improve cloud infrastructure on AWS, EC2, S3, and RDS,
including backups, patches, and scaling
* Providing Monitoring, Logging and Alerting services with Prometheus and
Grafana
* 24/7 support Network and Server Infrastructure Monitoring
* Applications and Database Monitoring
* Prompt detection, classification, and resolution of alerts and incidents
* Scheduled maintenance/support procedures and routines execution
* Gathering specific requirements and suggesting solutions
* Troubleshooting and debugging to optimize performance
* Reporting and tracking incidents status
Technologies: Python, Bash, Jenkins, Terraform, Ansible, Packer, Git, PostgreSQL,
Prometheus, Grafana

Company: Conceptsoft, Kyiv
Duration: Aug 2016 - Sep 2018 (about 2 years)
Role: QA automation test engineer
Project Description: Outsource company has a lot of projects
Responsibilities: * Create automation tests for GUI with Selenium (Python, pytest etc.)
* Create automation tests and testing API for monolith-service with Postman and
using Newman in CI/CD
* Create automation tests and testing API for microservices (Python, requests,
JSON)
Technologies: Python, Pytest, Selenium, XPath, Postman/Newman, Jenkins, Git, PostgreSQL

Company: NGNware, Kyiv
Duration: Jun 2015 - Jul 2016 (about 1 year)
Role: Qa test engineer
Project Description: Testing of a system, that provides automated provisioning,
analytics, monitoring, and life-cycle management for Virtual Network
Function appliances are managed through a single system.
Responsibilities: Writing test documentation (Test Plans, Test Cases, bug reports)
Execution of types of testing
Technologies: TestRail, Jira, Jmeter, Postman, Jenkins, Git, PostgreSQL, MySQL

Company: Government Service, Kyiv
Duration: Jun 2012 - Aug 2015 (about 3 years)
Role: Senior Specialist Information Security
Project Description: The department provides services in telecommunication and information
protection areas
Responsibilities: Took part in building MPLS-network around Ukraine
Development of Technical specification documentation
Organization cooperation with contractors, schedule and control contractor task
Regular report preparation
Company: Government Service, Kyiv
Duration: Sep 2006 - May 2012 (over 5 years)
Role: Specialist of data protection
Project Description: The department provides services in telecommunication and information
protection areas
Responsibilities: Prevention of information leak (technical security)
Development of Technical specification documentation
Analyzing and valuation contractors in the information security market
Organization cooperation with contractors

Education
Institution: NTUU KPI (National Technical University of Ukraine Kiev Polytechnic Institute),
Ukraine
Date(s) Attended: August 2001 - June 2006
Qualification(s): Master’s degree in Information Security
Major Subject(s): Information Security

Professional certifications:
- AWS Certified Solutions Architect – Associate