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Alexander Shelega

Alexander Shelega

Senior System Infrastructure Engineer at PicsArt Inc.


● More than 5 years in IT administration, including working with multiple Data Centers in different regions also working with different cloud providers, planning new and existing infrastructure upgrade and maintenance, strategic direction, planning and operation of Data Centers.
● Skilled in evaluating current and future technologies to support both short and long-term IT initiatives.

▪ Debian/Ubuntu/CentOS
▪ Windows server 2008/2012 R2
▪ ESXi5/6.X / VCenter 5/6.X
▪ Pfsense 2.X / Networking

● Linux servers
Ubuntu/Debian, CensOS, HDFS, HBase, Apache Kafka, YaRN, Druid, Docker, Kuberneters, Spinnaker, Jenkins, advanced IPtables managment , Nginx, PHP, Redis, Squid3 proxy, NFS server, Samba, FTP, Keepalived failover and load balancing, DNSmasq, BIND9 master and slave servers, MySQL server and replication, MongoDB (Advanced),  MooseFS distributed file system, GlusterFS distributed file system, Bacula backup system, Munin monitoring system, Graphite monitoring system, Seyren alerting system, Grafana, Elasticsearch, Logstash, Kibana, Puppet, FreeIPA, Azkaban cron managment tool, CentrifyDC, Linux AD integration.

● Cloud  Services
Google cloud, Azure, AWS, Hetzner, Linode, Cloudflare

● Scripting 
Bash, PowerShell, Python

● FreeBSD - PfSense
Firewall rules, VPN, IPSec over L2TP VPN, Gateway load balancing, filter bridge, VLAN, NAT, DHCP server, port forwarding, routing, Traffic Shaper, CARP.

● Windows server:
AD DS with replication, Group policy editor, DNS, DHCP, DFS, Storage

● VMware ESXi:
Virtual networking, High Availability (HA) cluster, Distributed Resource Scheduler (DRS) cluster, vCenter Update Manager, VMotion & Storage VMotion.

● MacOSX Server
DNS, DHCP, Open directory, Netboot, AFP, Deploystudio, Profile manager

● Server Hardware
Dell servers, Supermicro servers, Lenovo servers, D-link, Quantum Tape drives, Quadro VOIP


  • Senior System Infrastructure Engineer (PicsArt Inc.)
  • Engineer Assistant (Renco S.p.A.)
  • System Infrastructure Engineer (PicsArt Inc.)
  • Linux System Administrator (Tumo Center for Creative Technologies)
  • Tech support engineer (Tumo Center for Creative Technologies)


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