Sergei Vasilev Email & Phone Number

Rotterdam, South Holland, Netherlands

Moscow, Russia

• Performing migration of all bank services in geo-distributed spine-leaf (VXLAN-EVPN) topology data centers based on Cisco Nexus and Arista to increase stability and decrease DR time.• Developing automation tools with Python, Ansible and Gitlab CI/CD.• Maintaining and troubleshooting Checkpoint, Fortinet, Symantec Blue Coat Proxy and network devices in the data centers.• Responsible for network security segmentation in the data centers.

Moscow, Russia

Achievements• Planned and implemented full replacement of access, distribution and core layer routers and switches in 10 DCs across Russia, implemented dynamic routing based on BGP, OSPF and tunneling based on IPSec and DMVPN between them.• Planned and implemented new NGFW solution (Checkpoint NGFW) in 2500+ retail offices and 10 DCs across Russia, created and deployed NGFW security policy, both access and IPS, from scratch. Implemented role-based access for all employees (>10000).• Implemented remote access VPN solution based on Checkpoint and Cisco ASA to ensure the company’s efficient transition to the employee’s remote work environment.• Deployed monitoring system (Zabbix) for network and server infrastructure• Developed and deployed new campus network in HQ (access, aggregation and core layer)Duties• Network infrastructure administration (Cisco Catalyst 2960, 4948, 3650, 9200, ISR 4451, Nexus 9K, Juniper EX3200, 4200, SRX300, Mikrotik)• Supported existing network design and implemented new design solutions• Firewall and NGFW administration (Sophos UTM, Checkpoint, Cisco ASA)• Provided technical guidance to small team of network engineers (~10)• Monitored network infrastructure, performed upgrades and performance tuning• Wrote documentation to knowledge base• Worked with user requests in service desk (HPSM)

Moscow, Russia

Achievements• Planned and implemented the replacement of Cisco Catalyst 6509 collapsed core switches with Nexus 7K, performed migration to a new ISP with minimal downtime.• Planned and implemented migration to a new ISP in data center with minimal downtime.• Implemented internal IP telephony for ~300 people.Duties• Network infrastructure administration (Cisco Catalyst 2960, 4948, 3750, 6509, Cisco Nexus 7706 + FEX, Extreme EXOS)• Monitored network and server infrastructure• Firewall and NGFW administration (NGFW Stonegate, Cisco ASA)• Wrote documentation in knowledge base, worked with user requests in service desk

Master'S Degree, Computer Science And Engineering

Bachelor'S Degree, Biotechnical Engineering