Aleksei Petrov

• Deployed and commissioned DC network infrastructure for a newly formed site.
• Configured evpn/vxlan topology on network equipment and connected supporting systems Oxidized, Netbox, Radius.
• Reviewed project documentation, validated designs, and supported infrastructure acceptance testing.
• Automated configuration validation, inventory synchronization with NetBox, backup collections.

• Oversaw support operations for a nationwide infrastructure serving more than 27,000 retail stores, 50 distribution centers, and 5 corporate offices across Russia
• Managed 24/7 technical support teams responsible for Data Center & NGFW infrastructure, enterprise LAN services, and VoIP platforms;
• Reduced incoming incidents and service requests by approximately 2% month-over-month through proactive problem management and operational improvements, starting from a baseline of over 6,400 monthly tickets;
• Consistently achieved industry-leading service levels, maintaining OLA and SLA performance of 99.92% and 99.96%, respectively.

• Supported and evolved a geographically distributed enterprise network infrastructure spanning 56 offices, serving more than 4,000 employees and enabling business-critical services for over 50,000 airport customers daily.
• Migrated DC infrastructure to EVPN VXLAN architecture;
• Led incident, problem, and change management activities;
• Maintained complex network solutions including MPLS L3VPN, IPsec VPN, routing, NAT/PAT, and Layer 2 technologies across enterprise infrastructure;
• Strengthened network security posture by administering and optimizing Cisco ASA, Cisco Firepower, and Cisco ISE solutions for perimeter and access control protection;
• Developed Python automation scripts that reduced manual operational workload;
• Established and maintained network interconnections with ISPs, public networks, and partner organizations;
• Implemented and managed network monitoring and alerting systems, improving visibility, fault detection, and proactive issue resolution across the infrastructure.

• Supported mission-critical Unified Communications environments based on Avaya solutions, delivering reliable voice and collaboration services for enterprise customers;

• Resolved complex interoperability issues involving SIP/H.323 signaling, VoIP infrastructure, and integrations with third-party business applications;

• Improved service stability and customer satisfaction through proactive troubleshooting and close collaboration with vendors and customer technical teams.

• Participated in the design and deployment of network infrastructure solutions, including selection and evaluation of networking equipment based on technical and business requirements.
• Prepared technical documentation, network diagrams, and implementation plans to support project delivery and operational maintenance.
• Installed, configured, and commissioned network equipment for customer environments, ensuring compliance with project specifications and industry best practices.