Sergey Okishev Email & Phone Number

Москва, Россия

Managing company Openstack clouds, Linux administration, service automation with Ansible, e.t.c.

Moscow

Managing corporate firewalls, Cisco ASA, VPN's. Creation of systems for service automation ( MySQL, PHP, TCL Expect ).

• Developed network structure and managed corporate network (more than 200 remote subnets C-class), central office local network (more than 30 switches and routers) and core area with firewalls, access routers, core switches, etc. • Responsible for all aspects of operation and management of network equipment, mostly based on Cisco devices • Responsible for network security of corporate network • Responsible for corporate VoIP systems operation; manage users via UCM 9.1 BE6000 and CallManager 4.2, (more than 400 IP-Phones), Call Manager Express (three routers and ~20 phones), MGCP gateways. • Manage monitoring systems and management applications • Recommended and created specifications for purchasing equipment • Monitoring and troubleshooting of network devices and generated accounts. • Hardware and software maintenance; update software • Communication contacts with providers and customers

• Developed network structure and managed corporate network for more than 100 remote C-class subnets, including 6 customer head office local networks with approximately 20 switches per office, and network core in data center with firewalls, access routers, core switches, etc.• Management of division work• Customers and contractors services in the creation and maintenance of a network infrastructure• Document processing: technical conclusions, specifications, charts, justification, service regulations, etc.• Participation in development projects of the corporate network• Equipment compilation and specifications drafting for enterprises connections to the corporate network• End-level service support in troubleshooting network problems• Responsible for network security of corporate network