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Max Mazur
Contacts:
Email: sirmax123 AT gmail.com
Cellular: +38067 341 80 70 (Telegram /Viber)
Skype: sirmax123


Nationality: Ukrainian

Education:
Kharkiv National University of Radioelectronics.

Cisco courses:

  • BSCI: Building Scalable Cisco Internetworks





Mar 2019 - Now
Deployment engineer/DevOps "Mirantis" software company, Kharkiv, Ukraine.

Key Responsibilities:
Responsible for software delivery on Production and Staging/Dev environments, automating deployments, and implementing and supporting zero-downtime deployment procedures for SDN controller.

Details:

  • Deployment SDN controller (Consists of multiple microservices, including Apache Storm topologies, docker-based services, and k8s-based services)
  • Administrated various Linux servers (CentOS, Ubuntu)
  • Automation: CI/CD: Salt, Jenkins Pipelines (GroovyDSL, JJB)
  • Administrated Clouds (OpenStack, Amazon)
  • Automate deployment using Terraform (Create ad-hoc environments to test features and delete them after testing)
  • Hardware: OpenFlow switches, Servers (Dell, HPE, SuperMicro)
  • Monitoring: Prometheus, Alert manager, Alerta
  • Deployed k8s and OpenStack (Using Mirantis MCC/MOSK), troubleshoot OpenStack and k8s issues including network outages
  • Supported self-hosted repositories: docker registry, Git server, python-pip registry, maven caching proxy for java applications.
  • Other services: Apache Storm, Zookeeper, Apache Kafka, OpenTSDB, Elasticsearch (ELK stack for logging)



Dec 2016 - March 2019
Deployment/"DevOps" engineer "Grid Dynamics" software company, Kharkiv, Ukraine.

Key Responsibilities:
Migrate existing applications to the Cloud environment, Implement service discovery for microservices

Details:

  • Adopted applications to be deployed to Google Cloud (including dockerizing)
  • Deployed application to the Google Cloud (using Hashicorp Terraform)
  • Configured/supported service registry/service discovery with Hashicorp Consul
  • Configured/supported secrets management with Hashicorp Vault
  • Deployed application to the K8S/GKE environments with service discovery support (using Helm and Terraform)
  • Debugged issues on Dev/Prod environments
  • Production environment support
  • Other: Apache Kafka, Cassandra, Zookeeper, Zabbix, AWS, che



Mar 2012 - Dec. 2016
Deployment engineer "Mirantis" software company, Kharkiv, Ukraine.

Key Responsibilities:
Implementing CI/CD, deploy configure and troubleshoot OpenStack

Details:

  • Administrated various Linux servers (RH, CentOs, Ubuntu, Amazon Linux)
  • Automate server setup and software deployment with Puppet/Chef Salt/Ansibleconfigurstion management systems
  • Administrated Clouds (OpenStack, AWS)
  • Python development
  • Managed application servers (TomCat)
  • Shell scripting
  • NoSQL: ElasticSearch, Cassandra cluster, MongoDB, InfluxDB
  • OpenStack installation, configuring, and debugging
  • CI/CD: Jenkins, JJB, GoCD
  • Monitoring: heka, collectd, nagios, kibana, grafana, zabbix ,Graylog2
  • OpenLDAP directory service



May 2010 - Mar 2012
System integrator TTI-Telecom. Ltd, Israel.

Key Responsibilities:
Install TTI product on the customer's environment. Customer support: troubleshoot issues with TTI products, and upgrade products.

Details:

  • Administered various servers including UNIX (Solaris 5.9, 5.10, HP-UX 11.23)
  • Shell scripting.
  • Administered Veritas cluster.
  • Installed and managed Oracle and Sybase databases.
  • Managed application servers (WebLogic).
  • Installed and supported TTI product
  • PL/SQL programming/debugging.



Apr 2007 - May 2010
Senior Network Engineer, "AirBites ISP" Kharkiv, Ukraine.

Key Responsibilities:
Designing, implementing, and managing a city-wide network

Details:

  • Managing fibers backbones
  • Managing wireless base stations.
  • Designing and implementing QoS on the network
  • Managing DMZ: firewall management
  • Managing hosting server and hi-loaded web servers
  • Linux administrating
  • Managing Cisco & Linux soft routers
  • Managing interior and exterior network routing using OSPF, BGP4, Load balancing using BGP4
  • Securing data with IPSEC
  • Support and secure mail system
  • Installed, secured, and managed BIND, Apache, Nginx, Postfix, MySQL, Squid, Radius, Jabberd, Bacula, Nagios, NetFlow collectors, Cacti, DHCP, VPN (multiple protocols)
  • Managing billing system
  • Clustering www-servers with DRBD and GFS2
  • Virtualization using VMvare and KVM



Apr 2006 - Apr 2007
Senior system administrator. "Program-Ace" software company. Kharkiv, Ukraine.

Responsibilities: Support All services required for developers teams, and support local company infrastructure.

Details:

  • Designed, implemented, and managed corporate network WAN&LAN
  • Installed and used hosting software (ISPConfig, CPanel, Plesk, DirectAdmin)
  • Installed and supported web-clusters and hi-loaded web servers
  • Securing data with IPSEC
  • Support and secure mail system
  • Installed, secured, and managed BIND, Apache, Nginx, Lighttpd Postfix, MySQL, Squid, Jabberd, Nagios, samba, svn, csv.



Jul 2005 - Apr 2006
Senior network administrator, "UkrSibbank BNP Paribas group" Commerce Bank, Head Office, Kharkiv, Ukraine

Responsibilities:
Designed, implemented, and managed corporate network WAN&LAN

Details:

  • Managed DMZ: firewall management, networking.
  • Linux administration.
  • Managed Cisco & Linux routers, all WAN area, more than 1000 sites placed in all Ukrainian territory (around 1300 Cisco devices)
  • Managed interior and exterior network routing using EIGRP
  • Securing data with IPSEC
  • Support and secure mail system
  • Managed customer internet access system
  • Installed, secured, and managed BIND, Apache, Postfix, MySQL, Squid, TACACS+, Jabberd, and Nagios.



Jun 2004 - Jul 2005
Senior Network Administrator. ISP "Center of Information Technologies Vostok", Kharkiv, Ukraine.

Responsibilities:
Network architecture and design

Details:

  • Designed and implemented network security and software firewalls.
  • Managed interior and exterior network routing using OSPF, BGP, and RIP.
  • Installed and managed Cisco routers and Cisco Catalyst switches
  • Managed ~30 Linux-based software routers.
  • Installed, secured and managed BIND, DJBDNS, Apache, Postfix, QMAIL, MySQL, Squid, RADIUS and TACACS+
  • Managed fiber backbone based on switched Ethernet using Cisco and AlliedTelesyn switches
  • Managed about 40 wireless base stations (Awaya, Orinoco, KarlNet/Terabeam, Cisco)



Oct 2002 - Jun 2004
Junior System Administrator.ISP "Center of Information Technologies "Vostok", Kharkiv, Ukraine.

Responsibilities:
Infrastructure and Customer support, troubleshoot network issues.

Details:

  • Administered various Internet servers including UNIX (Slackware Linux, Red Hat Linux, FreeBSD), and Windows (95/98/NT/2000).
  • Installed and managed various Internet Services such as firewall, WEB, DNS, SMTP, SNMP, FTP, etc.
  • Designed, implemented, and managed LAN and uplink.
  • Installed satellite dish, radio-Ethernet, radio modems, bridges, switches, and routers (Cisco).
  • Connected PBX and various office equipment.
  • Providing technical support to the clients by phone and on-site.
  • Installed and configured Internet dial-up and leased line access.



1997 - 2002 Education:
Kharkiv National University of Radioelectronics, Bachelor of Computer Science

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