• Design network infrastructure and software for Voice Over IP communicationKey achievements> Proven abilities in collaboration, teamwork, team building and leadership;> Manage workflow, help team structure and issue tracker by Azure DevOps;> Redesign the data centre infrastructure, HA and Redundancy technology;> Configure the layer 2 and 3 networks with Cisco switches and Mikrotik routers;> Implement VPN, using WireGurad, OpenVPN and SSTP Technology;> Administrate, implement and maintain ESXi, VMware vSphere, vCenter, and vSphere HA;> Implement Ceph to provide object storage, ISCSI storage and file storage on Debian 11.6;

• Implement, monitor, support and troubleshoot of network infrastructureKey achievements> Configure traffic routes using Kerio software;> Configure the Layer 2 Network for more than 10 communication points;> Unify the configuration of network devices according to best practice (Network Hardening);> Implement and operate Cisco Prime Infrastructure to manage network hardware equipment;> Manage user authentication by Cisco ISE, integration with Cisco WLC and Windows Active Directory;

• Establish a connection between end customers and Uber’s core network to provide internet Key achievements> Establish diverse peering capacity on BGP which provides predictable traffic patterns;> Support MPLS switching and employ LDP + OSPF to synchronize routes and MPLS labels;> Create two VPLS tunnels from the Mikrotik Router and attach them to the PPPoE-Bridge;> Run OSPF routing protocol which includes different areas on the wireless network;> Use applications to monitor and manage Uber’s network such as Dude by Mikrotik, Syslog, PowerDNS, Rancid, Grafana, SmokePing, PRTG, and Veeam backup.

• Responsible for designing, implementing, monitoring, supporting, troubleshooting and updating configurations of the network infrastructure• Manage network performance using network monitoring tools to diagnose the health, availability, RTT, latency, as well as capacity planning by traffic analysis with Netflow AnalyzerKey achievements> Optimise and troubleshoot routing infrastructure by implementing OSPF, Route MAP, HSRP, and static routes on firewalls, routers and layer 3 switches;> Design and manage the network hardening security to improve security;> Implement Cisco ISE to manage security and access policies (TACACS);> Implement and control policies between the DMZ and the state's branches by FortiGate;> Enhance network integrity & security by automating the same configuration for 12,000 Cisco devices using Network Configuration Management (NCM);> Manage incident life-cycle with ServiceNow and ManageEngine ServiceDesk;> Handle escalations and resolve technical issues according to SLA raised by the NOC;V

• Design and improvement of Network infrastructure for a monitoring software project• Participate in a 24/7 global operation that looks for and responds to events on mission-critical servicesKey achievements> Provide solutions in complex network architecture that includes WAN, LAN, IPv4 and IPv6, Ethernet, MPLS/VPLS VPNs, DMVPN and QOS-based architecture;> Reach High Availability (HA) by implementing HSRP, Link Aggregation, STP and switch stack;> Document detailed, including NRFU for both Cisco devices and NOC applications;> Implement Route-map, Prefix-list, and ACL on core devices to control income and outcome prefixes> Implement, and maintain IPsec Tunnel (180+) to ensure secure data transmission in WAN; > Design, plan and execute 250 Microsoft Servers migration from 2008 R2 to 2012 R2.V