Curriculum Vitae

Dmytro Prokhorenkov


Date of birth: 02 December 1987

Marital status: married, 1 child

Contacts:


Skills & abilities

  • 11+ years in experience working in IT
  • Deep knowledge of SysOps activities: OS administration, infrastructure provisioning and monitoring, system backups
  • Good knowledge of DevOps activities: code deployment, CI, containers and orchestration, microservices
  • Deep knowledge of network activities: infrastructure support, desing and configuration, BGP management
  • Focused on documenting all the steps in project
  • Aspiration for innovation
  • Hard-working and excelent team-player
  • Unlimited legal status and work permit in Germany

Key techologies

Cloud

  • AWS Services: EC2, EBS, RDS, Route53, CloudFormation, VPC, Loadbalancers, IAM, IAM roles, Autoscaling, S3, Glacier, CloudWatch, AutoScaling, AWS CLI tools
  • Google Cloud: Compute Engine – VM Instances, Storage
  • DigitalOcean: Droplets
  • ProfitBricks: VM’s, S3 compatible storage, Load Balancers

Virtualization

  • VMWare
  • KVM
  • Xen

Containers and orchestration

  • Kubernetes
  • Docker
  • LXC/LXD

Monitoring

  • Icinga2
  • Nagios
  • Collectd
  • Grafana + InfluxDB
  • Netflow: nfsen

Logging

  • ELK + Beat’s
  • Splunk

Programming

  • Python
  • POSIX Shell
  • Perl
  • PHP
  • Expect

Versioning control systems

  • gitolite
  • gitlab

CI/CD

  • Jenkins
  • Gitlab-CI

Automation and provisioning tools

  • Saltstack
  • Terraform
  • Puppet

Networking

  • Dynamic routing protocols: BGP, OSPF
  • Secure tunnels: IPSEC (route- and policy-based), Easy VPN, OpenVPN, SSL VPN
  • Hardware solutions: Cisco, Juniper, Dell, DLink, Aruba etc

VoIP

  • Asterisk
  • Cisco CallManager


Education

National Technical University of Ukraine ‘Kyiv Polytechnic Institute’, Applied Mathematics
Specialist of Computer Systems and Networks
2004 - 2011


Expirience

July 2015 - nowSystem Administrator, DeliveryHero AG
Oct 2013 - July 2015IT System Analyst, Advanced Telecomunications Ltd
June 2012 - Oct 2013System Administrator, Video Internet Technologies
July 2009 - June 2012NOC, Skif ISP Ltd Ukrainian Internet Operator
Nov 2007 - June 2009NOC, Freenet Ltd
Feb 2007 - Nov 2007Technical support, Freenet Ltd

Detailed expirience

System Administrator — Delivery Hero

July 2015 - now

  • SaltStack and Puppet servers/vm configuration automation
  • Creating Terraform plans for internal projects
  • Managing centralized logging systems: Splunk, ELK
  • Working on new platform based on Kubernetes
  • Infrastructure monitoring and configuration of monitoring tools
  • Infrastructure backups and disaster recovery procedures
  • Managing infrastructure and accounts in Amazon AWS
  • Managing CDNs configuration: Akamai, CloudFlare
  • Network administration and planning (Fortigate, Vyatta/VyOS, custom Ubuntu based firewall)
  • Server initial deployment

IT System Analyst — Advanced Telecommunications

Oct 2013 — July 2015

  • Design internal network infrastructure: BGP, IPSEC tunnels, wireless network
  • Administration mail servers and services (Postfix, Dovecot) and Cisco IronPort (server and virtual appliance)
  • Administration SIP servers: Cisco CUBE, Cisco CallManager, Asterisk
  • Configuring monitoring infrastructure: Icinga, Check_MK, CollectD

System Administrator — Video Internet Technologies

June 2012 - Jan 2014

  • Managing BGP for own network and AS
  • Service and hardware administration of office and network
  • 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)
  • PXE server for Windows images automated installation
  • Linux images development for embedded systems

NOC — SKIF ISP LTD Ukrainian Internet Operator

July 2009 - June 2012

  • Researching for new hardware and software solutions, design and implementation (IP-Unnumbered, global user authorization system, soft routers based on OpenBSD and Linux)
  • Interaction with service providers
  • IT staff training
  • IPv4/IPv6 network design and management. Hardware equipment (routers/switches: Cisco, Juniper, eXtreme, etc) research and implementation
  • Research, programming and support of ISP Billing system (introduction of new functions, automation of processes, programming gates for payment systems)
  • Support of services (Postfix, Cyrus, PostgreSQL)

Freenet Ltd

Nov 2007 - June 2009 - NOC

Feb 2007 - Nov 2007 - Technical support

  • Implementing monitoring solution based on Nagios+NagVis
  • Managing and planning network infrastructure
  • Implementing billing automation
  • IT staff training
  • Services support