CV

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