Serhii

Cholovskyi Serhii Nikolaevich
Date of birth: 02 Sep 1982
Location: Kyiv
Relocation: Kyiv, Other countries
Phone number(s): [open contact info](look above in the "contact info" section)
E-mail: [open contact info](look above in the "contact info" section)

Head of DevOps/Senior DevOps

Summary

Head of DevOps / DevOps Lead with 10+ years of DevOps experience and 20+ years in IT infrastructure. Experienced in
designing, migrating, and operating highly available production platforms across AWS, GCP, Kubernetes, Proxmox and
bare-metal environments.
Strong background in Infrastructure as Code, CI/CD, GitOps, observability, infrastructure security, PCI DSS, disaster
recovery and cloud/on-premises migrations. Hands-on engineering leader with experience building DevOps teams,
defining infrastructure strategy, improving reliability and standardizing engineering practices.
Core Technologies
AWS • GCP • Kubernetes • Docker • Terraform • Ansible • GitLab CI/CD • GitHub Actions • Argo CD • Proxmox • Ceph •
PostgreSQL • Redis • Prometheus • Grafana • Loki • Datadog • Linux • Nginx

Experience

Head of DevOps
Dec 2024 - Present
Playson IT
Scope
- Lead a DevOps team responsible for production infrastructure across cloud, on-premises and Kubernetes environments.
- Own infrastructure architecture, reliability, security, CI/CD, observability and infrastructure automation.
- Define DevOps engineering standards, IaC/GitOps practices and infrastructure lifecycle processes.
- Manage AWS/GCP, Kubernetes, Proxmox/Ceph and supporting production infrastructure.
- Drive SRE practices including SLI/SLO, monitoring, alerting and incident response.
- Lead infrastructure security and PCI DSS technical compliance initiatives.
- Own infrastructure cost optimization and FinOps reporting.
Selected achievements
- Designed and deployed a highly available Proxmox/Ceph platform and migrated workloads from bare-metal infrastructure.
- Executed production infrastructure migration with minimal service disruption.
- Led technical PCI DSS readiness and infrastructure remediation required for successful audit.
- Standardized infrastructure provisioning using Terraform and Ansible.
- Improved observability through Prometheus, Grafana, Loki and Datadog.
- Introduced infrastructure standards, documentation and repeatable deployment procedures.

Senior DevOps Engineer
Jun 2022 - Dec 2024 (2 years 7 months)
Playson IT
Designed and implemented the migration of project services from the data center "Hetzner" to the GCP cloud
Designed and configured GCP infrastructure
All the infrastructure was described by me in Terraform.
Software in K8s clusters is deployed using argocd, (and accordingly the entire cluster configuration is stored in git and can be easily redeployed in a
new cluster)
Implemented and configured GitHub Actions CI - CD (build, testing end deploy service to GKS)
CI-CD: - GitHub Actions
Monitoring: - Prometheus +Grafana+Loki & Automation: - Terraform

Senior DevOps Engineer
Jan 2022 - Sep 2022 (9 months)
UPC Banks
Designed and implemented the migration of project services from the data center to the AWS cloud
Configured and integrated the Prometheus + Grafana + Loki monitoring and log collection system
Implemented and configured GitLab CI - CD (build, testing end deploy service to EKS)

Senior DevOps Engineer
Mar 2021 - Jan 2022 (11 months)
LeadsMarket IT
Built the infrastructure of the company's projects in Kubernetes in Google Cloud Platform.
Configured the Docker Swarm cluster and service deployment in the cluster
CI-CD: - Azure DevOps
Monitoring: - Prometheus +Grafana + ELK
Automation: - Terraform, Ansible

Senior DevOps Engineer
May 2018 - Apr 2021 (3 years)
Vigo Group IT
Built from scratch the infrastructure of all the company's projects in Kubernetes in Google Cloud Platform.
CI/CD - Git-Lab
Monitoring - Prometheus +Grafana + Loki
Automation - Terraform
Creating new development environments in the AWS cloud (S3, EC2, CloudFront, Route 53, Elastic Load Balancing, VPC)

DevOps Engineer
Nov 2017 - May 2018 (7 months)
EvoPlay IT
• Eliminating various problems that arise in various situations when updating and deploying code in different environments.
• Support and maintenance of Xen, OpenVZ virtualization servers. Containerization Docker, Kubernetes, LXC.
• Continuous Integration (Gitlab, Gitlab runner, Jenkins)
• Administering the services of one of the company's projects, such as (nginx, phpfpm, nodejs, MySQL, RabbitMQ, MongoDB, Redis + Sentinel,
PostgresSQL, Etcd ).
• Monitoring (Zabbix, Grafana, Prometheus)
• Log analysis (Fluentd, Elasticsearch, Kibana)
• Configuration Management (Puppet, Ansible)

DevOps Engineer
Aug 2017 - Nov 2017 (4 months)
Incuube IT
• Creating new development environments in the AWS cloud (S3, EC2, CloudFront, Route 53, Elastic Load Balancing, VPC)
• Support and maintenance of Xen, KVM, vSphere virtualization servers. Containerization Docker, LXC.
• Administering the services of one of the company's projects, such as (nginx, php-fpm, mysql, redis, mongodb, ActiveMQ, Kafka, memcached, gitlab).
• Ansible + TeamCity was used to deliver the code

DevOps Engineer
May 2017 - Aug 2017 (4 months)
Skein Ltd 20 to 50 employees Internet
Project work.
• Creating new development environments in the AWS cloud (S3, EC2, CloudFront, Route 53, Elastic Load Balancing, VPC)
• Administering the services of one of the company's projects, such as (nginx, redis, rabbitmq, gitlab, mongodb, RethinkDB, Node.js, python).
• Implemented Continuous Integration - TeamCity. (To automate the delivery of code)
• Automation of the process of data backup. AWS (bacula & Amazon EC2 command line tools)

DevOps Engineer
Feb 2017 - May 2017 (4 months)
Game LTD IT
Project work
• Working on application deployment on dev, qa and production environments.
• Troubleshooting and improvement of deployment code.
• Creating build and deployment jobs using Jenkins and TeamCity CI.
• Creating new development environments in the AWS cloud (S3, EC2, CloudFront, Route 53, Elastic Load Balancing, VPC)
• Process automation backup AWS EC2 (bacula & Amazon EC2 command line tools)

DevOps Engineer
Aug 2016 - Feb 2017 (7 months)
Genesis 250 to 500 employees IT
Administrative services of one of the company's projects, such as (nginx, php-fpm, mysql, redis, rabbitmq, memcached, exim, gitlab, vertica).
Implement Continuous Integration - TeamCity
Support and maintenance of servers virtualization, Xen, OpenVZ, LXC, KVM,
Docker containers.
The planning and implementation tasks for the complete relocation of all project services from one data center to another. Introduced technology for
fault-tolerance design services, such as mysql, redis, rabbitmq (replication), load balancing web servers based on nginx.
To control servers used configuration management system Ansible.
Support and maintenance of servers in the cloud «Hetzner», «servers.com», DigitalOcean

DevOps Engineer
Dec 2015 - Aug 2016 (9 months)
Simple Touch 50 to 100 employees IT
Designed and implemented environment development (Zimbra +Jira+GitLab + TeamCity + dev and test servers)Designed and implemented a fault
tolerant infrastructure of servers for a high-availability project (cluster mariadb, load balancer Haproxy, web server Nginx+PHP-FPM, Zabbix monitoring,
Bacula backup system, Firewall - Iptables, Pfsense) Support and maintenance of Xen, OpenVZ, KVM, vSphere virtualization technologies. Support and
maintenance of Amazon Cloud technologies (EC2, Route53, RDS) Support and maintenance of Hetzner Cloud Close communication with the developers
while working on the projects

linux system administrator
May 2015 - Mar 2016 (11 months)
i-media 250 to 500 employees IT
Maintenance of servers virtualization Xen, OpenVZ. Support and service servers clients (Centos, FreeBSD, Debian, Ubuntu) Installation, optimization,
error correction services at the client's server, such as Apache, Nginx, MySQL. Postfix, Exim, Pure-ftpd.
Setting up the development environment gitlab + TeamCity
introduce a monitoring system "Zabbix"
Installing and configuring the various components and programs at the request of customers.

Senior System Administrator
Sep 2014 - May 2015 (9 months)
Lime systems 50 to 100 employees IT
Administering Servers Enterprise: Windows Server 2012 - Hyper-V, IIS Server, Microsoft Project Server 2010, Exchange Server 2013-DAG, Lync Server
2013, Microsoft SQL Server 2008-2012, System Center Configuration Manager, System Center DPM, Active Directory, Wsus, WDS.Atlassian JIRA Linux
systems. Debian, SUSE. Firewall: Cisco ASA 5512, MForefront TMG. Design, deployment and maintenance of software and hardware systems at the
sites of the company. Implemented server protection internal mail from viruses and promotional mailings based on liaison of postfix, amavis,
spamassassin, clamav, debian. Introduced a system for monitoring IT services "Zabbix" Troubleshooting arise at different stages of projects
Senior system administrator
Dec 2013 - Jul 2014 (8 months)
Terrasoft over 500 employees IT
Administering Servers Enterprise: Windows Server 2008-2012 - Hyper-V, IIS, MS Project Server 2013, Exchange Server 2010, MSQL Server 2008-2012,
SCCM, SCDPM, AD, Wsus, WDS, VisualSVN , Apache, Nginx, MySQL, Postfix, PRTG.
Cloud services: Amazon EC2
Design, deployment and maintenance of software and hardware platforms in the company.
Troubleshooting arise at different stages of projects.
Ensuring the smooth operation and monitoring of internal IT services company.
The solution requests from technical support staff.

System Administrator
Feb 2012 - Dec 2013 (1 year 11 months)
Digicode 20 to 50 employees IT
Server administration
(MS Windows Server 2008 - Hyper-V, IIS Server, Microsoft SQL Server 2008, Active Directory, Wsus, VisualSVN)
Linux: Centos - Jira & Confluence, Chekpoint Firewall
Introduced a system for monitoring IT services "Zabbix"

System Administrator
Jun 2008 - Feb 2012 (3 years 9 months)
State enterprise "UKRPROMZOVNISHEXPERTYZA"
20 to 50 employees Governmental Sector
Local network administration.
Server administration (MS Windows Server 2008, Linux Centos OS -Zimbra Collaboration Suite).
Implementation of a system based backup software Acronis
Office PC maintenance (Liga, 1C 8, client banks, etc).
PC assembly and modernization.
Kerio Control, Kerio Mail server, Mdaemon
LG IP60 instal & maintenance.
Programming sites on the engine CMS Joomla. Creating flash banners for the company website.

Manager of Information Technology
Dec 2007 - May 2008 (6 months)
Office Solutions Ukraine
20 to 50 employees Architectural and Design Bureaus
Managing enterprise server (Linux - SQID, Postfix,) (Win2003-SQL Server, Active Directory), implementation of the internal electronic document based
Terrasoft CRM, Administration telephone exchange capacity of 64 number. User support (40 PC)

System Administrator
Mar 2007 - Oct 2007 (8 months)
Kuehne + Nagel Ltd.
over 500 employees Transport and Logistics
Managing enterprise server (Linux, Win2003EE - 4 server), diagnostic and preventive maintenance to maintain server park company, computer and
communication equipment (more than 230 PC). Support 2 mail servers (2 MDaemon) and 5 servers Windows 2003. Support for anti-virus systems and
cryptographic protection of data on the network. Support the work of geographically distributed sites of the company (branches, warehouses, offices).
Collection and analysis of statistical data, reporting, and documentation. Support and guidance of users. Service Op. technology.

Specialist information technologies
Nov 2005 - Mar 2007 (1 year 5 months)
КС «ПКО»
over 500 employees Financial Services
Enterprise server administration (Linux, Win2003EE), diagnostic and preventive maintenance to maintain computer equipment and communication
equipment (70 PC). Preparation of report documentation, the collection and analysis of statistical data, contacts with suppliers of telecommunications
services and computer equipment. Participation in development projects and modernization LAN more than 3 branches. Programming the PBX type
Panasonic KX TD 1234/816. Installing and Configuring GSM-gateway (Nokia 32, Eccom Basis), setting call forwarding, Callback-function calls through
gateways firm, tracking traffic. Guide team of 2 people.

Education

Vinnitsa Socio-Economic University "Ukraine" (2003 – 2007 )
End date 2007
Jurisprudence Bachelor's

Language skills

English - lower intermediate
Russian - native
Ukrainian - native

Courses, Trainings, Certification

NT-LAdm
End date 2013
Installing, Administering and Maintenance of Linux-systems

Additional Information

Additional information
There are a driving license category C

And personal skills
Attentive, performers, polite, able to work in a well-coordinated team.

Objective
Find a company with which I have grown and developed shoulder to shoulder as a person and as a professional.