Dmytro Prokhorenkov

Profile

I'm an IT specialist with almost 18 years of experience in networking, system administration and DevOps areas. I worked as a Network Operations Center Engineer in different ISPs in Ukraine and was in the core team of the company which is in the top 10 Ukrainian ISPs. Nowadays I have been working as a DevOps Engineer for 8 years in Berlin-based companies. I'm trying to use all best practices of infrastructure as a code and automation in my everyday work.

Experience

LiveIntent GmbH

Germany, Berlin

Senior DevOps Engineer

Aug 2021 - Present

  • Created pipelines and configurations for Golden images built with Hashicorp Packer
  • Improved Terraform configuration for resources hosted in AWS, developed modules and did some code cleanup
  • Maintained and improved inhouse developed database cluster manager for Voldemort (key-value store developed in Linkedin)
  • Worked on developing internal tooling to prepare reports for SOC2 audit
  • Supported developers with infrastructure topics: AWS, Kubernetes, Terraform, deployment pipelines, monitoring, etc.
  • Documented way of working for team members and developers on how to work with infrastructure
  • kubernetes
  • Python
  • Terraform
  • Packer
  • ArgoCD
  • Ansible
  • CircleCI
  • Networking
  • AWS

MBition GmbH

Germany, Berlin

Expert DevOps Engineer

Jan 2020 - Jul 2021

  • Driven migration of on-prem infrastructure to the cloud (AWS)
  • Supporting team members with implementing IaC (Terraform + Terragrunt)
  • Mentoring colleagues in the team with their first steps in AWS
  • Implementing automation for already running tools: Ansible, Python
  • Preparing policies for monitoring, alerting and disaster recovery
  • Working on a security-related topic (VPN connection, data encryption)
  • Leading Measuring Value Stream, planning work, activities and goals
  • Python
  • Terraform
  • Packer
  • Jenkins
  • Ansible
  • Networking
  • AWS

SmartFrog Services GmbH

Germany, Berlin

Senior DevOps Engineer

Sep 2018 - Dec 2019

  • Managing infrastructure (AWS, Kubernetes, Hetzner) and CDN (CloudFlare)
  • Managing pilot project to improve security in development with Hashicorp Vault
  • Managing monitoring configuration and tools (Icinga2, Prometheus, OpsGenie)
  • Preparing infrastructure as a code for internal projects: Terraform, Helm, Ansible
  • Writing automation scripts: Python, Shell, Go
  • kubernetes
  • Python
  • Terraform
  • Packer
  • GoCD
  • CircleCI
  • Networking
  • AWS
  • Golang
  • Ansible
  • Monitoring
  • Vault

DeliveryHero AG

Germany, Berlin

Senior System Administrator / Senior DevOps Engineer

Jul 2015 - Aug 2018

  • Automating configuration with SaltStack and Puppet
  • Creating Terraform plans for internal projects
  • Managing centralized logging systems: Splunk, ELK
  • Working on a new platform based on Kubernetes
  • Improving infrastructure monitoring
  • Implementing and optimizing disaster recovery procedures. Analyzed and reduced backup size
  • Managing infrastructure and accounts in Amazon AWS
  • Managing CDN configuration: Akamai, Cloudflare
  • Running network infrastructure (Fortigate, Vyatta/VyOS, custom Ubuntu-based firewall)
  • kubernetes
  • Python
  • Terraform
  • Networking
  • AWS
  • Golang
  • Monitoring
  • Logging
  • SaltStack
  • Puppet

Advanced Telecomunications Ltd

Ukraine, Kyiv

Senior Network Engineer

Oct 2013 - July 2015

  • Designing internal network infrastructure: BGP, IPSEC connectivity, wireless network
  • Administrating mail services (Postfix, Dovecot, Cisco IronPort)
  • Administrating VoIP servers: Cisco CUBE, Cisco CallManager, Asterisk
  • Configuring monitoring infrastructure: Icinga, Check_MK, CollectD
  • Python
  • Networking
  • Monitoring
  • VoIP
  • Email services
  • BGP

Video Internet Technologies Ltd

Ukraine, Kyiv

Senior System Administrator

Jun 2012 - Sep 2013

  • Managing BGP for own network and AS
  • Managing VMWare VSphere Server
  • Planning of company internal network and services (web-, file- and SVN storage, backup system etc)
  • Managing and support mail server (Exim+Cyrus+openbsd-spamd+spamassassin)
  • Automating the provisioning of embedded systems with the PXE server
  • Linux image development for embedded systems
  • Networking
  • Monitoring
  • Email services
  • PXE
  • VMWare
  • BGP
  • RIPE
  • Embedded systems

Skif ISP Ltd

Ukraine, Kyiv

Senior NOC Engineer

Jul 2009 - Jun 2012

  • Researching for new hardware and software solutions, design and implementation (IP-Unnumbered, global user authorization system, soft routers based on OpenBSD and Linux)
  • Interacting with service providers and uplinks
  • Developing new features and supporting the ISP Billing system
  • Support of services (Postfix, Cyrus, PostgreSQL)
  • Networking
  • Monitoring
  • Email services
  • Billing
  • PHP
  • VoIP
  • Databases
  • PostgreSQL

Freenet / O3 Ltd

Ukraine, Kyiv

NOC Engineer

Feb 2007 - Jun 2009

  • Implementing a monitoring solution based on Nagios+NagVis
  • Automating billing-related tasks
  • Managing and planning network infrastructure
  • Services support
  • Did onboarding for new employees in the technical support department
  • Networking
  • Monitoring
  • Perl
  • PHP
  • Billing
  • BGP

Education

Specialist of Computer Systems and Networks

National Technical University of Ukraine 'Kyiv Polytechnic Institute'

2004-2006, 2007-2011

photo of me

Skills

    • Programming
    • Python
    • HTML (including Jinja)
    • Golang
    • SQL
    • Bash
    • Perl
    • PHP
      Frameworks
    • Flask
    • Hugo
      Developer Tools
    • Git
    • Docker
    • Kubernetes
    • Nomad
    • Packer
    • Vault
      Infrastructure as Code
    • Terraform
    • Terragrunt
    • Ansible
    • SaltStack
    • Puppet
      CI/CD
    • Jenkins
    • CircleCI
    • ArgoCD
      Monitoring and Logging
    • Icinga2
    • Prometheus
    • Grafana
    • ELK
    • Splunk
    • OpsGenie
      Networking
    • BGP
    • IPSEC
    • VLAN
    • VPN
    • DNS
    • DHCP
    • Firewalls
    • Cisco
    • Juniper
    • Vyatta/VyOS
    • Fortigate
      Databases
    • PostgreSQL
    • MySQL
    • SQLite
      Cloud Providers
    • AWS
    • GCP
    • Ionos
    • Hetzner

Languages

  • Ukrainian
    Native
  • English
    C1
  • Gerrman
    B1
  • Polish
    A2

Interests

  • Archery
  • Homelab
  • Fantasy & Sci-Fi
  • Biking