PROFESSIONAL EXPERIENCE

Confidential

Network Engineer

Responsibilities:

• Expert knowledge in large scale IP Networking Technologies and protocols such as: MP - BGP, OSPF, ISIS, VRF, VxLAN, EVPN, QoS, GRE, IPSEC, DNS.
• Hands-on experience around Peering and Datacenter interconnect technologies: PNI, Transit, Exchange, Passive DWDM, Wave circuits.
• Ability to write and understand Python/Shell scripts and programs for automation, tools, frameworks, dashboards, alarms.
• Understanding of network virtualization such as: VRFs, VXLAN
• Familiarity with Arista, Juniper and Cisco OS.
• Expert in teh field of network, especially in underlay network.
• Strong track record of implementing network services in a variety of distributed computing environments.
• Experience with high performance network and network optimization in highly available, large-scale, multisite, international environments
• Hands-on experience with building tooling and automation for provisioning, monitoring, and managing teh network infrastructure.
• Network data center Engineers at Confidential performing hybrid software/network engineering functions to ensure that Confidential 's network and related services run smoothly and have teh capacity for future growth.
• Responsible for conceiving, developing, and deploying systems and tools to keep teh network running reliably and efficiently.
• Developed documentation and capacity plans, and debug teh hardest problems, on some of teh largest and most complex networks and systems in teh world.
• Managed and maintained multi-vendor, multi-protocol data center, backbone and edge networks. Defined and developed optimized network monitoring systems.
• Analyzed data to diagnose and identify root causes to network issues.
• Experience coding in higher-level languages (e.g., Python). Experience in configuration and maintenance of network devices and NMS systems, web servers, load balancers, relational databases, storage systems and messaging systems.
• Working Knowledge of routing and switching and practical protocol knowledge of BGP, MPLS, ISIS and OSPF and similar routing protocols - knowledge in typical configurations, troubleshooting, and performance tuning. Experience developing and understanding network device configuration for (Juniper, Cisco, Arista, Brocade, etc.)
• Broad engineering skillset to partner with product engineering teams to improve user experience for billions of people across Confidential, Instagram, WhatsApp, Messenger, Oculus, and many more products.
• Worked cross-functionally with highly technical software engineering and network engineering teams and product engineering teams to instrument metrics and build scalable systems that identify key relationships across network and user quality of experience measures.
• Leverage machine learning and related techniques to deliver solutions for large network infrastructure problems. Leverage data produced to improve platform architecture and design. Knowledge of network infrastructure and routing. Experience with data logging and processing at scale. Experience with analysis of network and performance metrics. Hands-on experience with large-scale datasets and experience in partnering with technical engineering teams to solve issues.

Confidential

Sr. Network Engineer

Responsibilities:

• Extensive experience with Cisco's enterprise product lines (switches, routers, and security products. Configure and troubleshoot Cisco Nexus, Citrix NetScaler, and ASA firewalls.
• Collaborate with teh network operations activity which include device upgrades, device management, escalated troubleshooting, reporting and analyzing teh network for optimization.
• Knowledge of Cloud operations, load balancing and design in one or more of: AWS, GCP, Azure. Deep knowledge of STP, 802.1q, LACP, VPC, Virtual Routing and Forwarding (VRF), Infoblox for IP Address Management (IPAM), DNS, and DHCP. Working knowledge of Firewalls, IPSec/GRE, VPN, and Load Balancers.
• Thorough understanding of MPLS, MP-BGP, L3/L2 VPN, Data Center Networking experience including Configuration, Architecture, Deployment, Upgrades, Monitoring and Performance tuning. Experience with Cisco Wireless controllers and Aps, Cisco ISE for RADIUS and TACACS+ and Cisco Prime Infrastructure.
• Working knowledge with Cisco ASA and Palo Alto Networks firewalls and Panorama.
• Extensive experience with WAN and LAN topologies, routing and IPsec tunnels. Expert knowledge with TCP/IP, VLAN, BGP, OSPF, EIGRP. Working knowledge of network monitoring and performance tools such as SolarWinds Orion and Wireshark. Broad technical knowledge of Cisco networking technologies and platforms to include Nexus 9/7/5/2k, ASR 1k and 9k, VPC, and VDC configurations.

Confidential

Network Engineer

Responsibilities:

• Managed teh performance of teh network from a senior/engineering viewpoint and lead efforts to optimize, troubleshoot, maintain, and provided engineering support for teh network infrastructure and interact with vendors to resolve issues
• Strong knowledge of internet designs and their applications, to include IP subnetting and complex routing techniques on LAN/WAN networks with varying routing & switching architecture of large-scale networks.
• Understanding of SDN/SDDC (Software Defined Network or Datacenter) including experience with AWS VPC, Azure, Openstack, Cloudstack, and related technologies.
• Involved with multiple successful implementations of (including teh ability to setup, configure, upgrade, manage, and troubleshoot) Cisco routers and switches, VPN connections, Cisco Lightweight Wireless Access Points, Meraki, and Citrix NetScaler.
• Knowledge of project life cycle management, Network device installation and testing,
• Virtualization technologies, Secure network architectures, High availability network design and implementation.
• Hands-on experience with repeatable, reliable, and scalable network architectures with fault tolerance, performance tuning, monitoring systems, statistics/metrics collection, and disaster recovery.
• Expert level knowledge of transport protocols, routing protocols, and security/auth to encryption protocols at all layers of teh OSI model with emphasis on TCP/IP.
• Thorough understanding of networking technologies, including administration of enterprise routers, switches, firewalls and load-balancers (OSI layers 4-7)
• Expertise with Palo Alto Network Firewall, Cisco ASA and NetScaler load balancers.
• Strong OSI layer 2 knowledge and practical experience, including various flavors of STP, ARP as well as knowledge of OSI layer 3 networks and protocols, including broadcast, multicast, anycast concepts, routing, and firewall.
• Expertise with various routing protocols (BGP, OSPF, EIGRP) Understanding of network security methodologies, including but not limited to ACLs, Stateful firewalls, VPNs (tunneling, IPsec, PPTP.)
• Fluency with common network admin and intrusion detection tools such as Rancid, OpenNMS, Nagios, Ethereal Wireshark, Nmap, and NetFlow.
• Administrative scripting skills (Python, UNIX shell scripting). In-depth knowledge of Cisco IOS, NX-OS, encompassing Cisco Nexus 1K, 2K, 5K 9K and non-Nexus series switches, Cisco routers and other Cisco networking gears.
• Solid understanding of data center related technology and collocation environment and In-depth knowledge of MPLS network. Experience with Cisco Fabric interconnect configuration and implementation.
• Experience deploying and maintaining wireless networks.

Confidential

Sr. Network Engineer

Responsibilities:

• Designed, deployed and maintained teh production and network infrastructure to include routers, switches, firewalls and other network devices. Reviewed existing processes, recommended changes and instituted new processes as necessary, to include areas of monitoring, upgrades, and tuning.
• Participated in application customization discussions and technical implementations as it pertained to network engineering. Management of both remote-access and site-to-site VPN tunnels in a Cisco environment and others. Involved in Debugging and troubleshooting of all IPsec/network related issues and VPN access.
• Generated high-quality project documentation, such as architectural designs, implementation plans, design documents, test plans, etc. Provided documentation, training and technical escalation applicable for day-to-day administration and change requests for network configuration.
• Documented maintenance activities, failure analysis results, incident reports, penetration analysis, audit results and activities related to management of small-scale projects.
• Provided technical escalation and be on call during designated periods. Worked with release management and testing within a SaaS environment. Diagnosed, as appropriate, complex systems issues with multiple influencing factors which required interaction with resolve problems.
• Experience with internal monitoring tools such as SolarWinds, Nagios, etc. Solid knowledge of LAN/WAN technologies. Solid knowledge of TCP and UDP protocols. Solid knowledge of BGP, OSPF and EIGRP. Experience deploying and maintaining wide area networks with emphasis on IPSec, VPN DMVPN and MPLS transport.
• Experience with Cisco IOS, IOS-XE and NX-OS, leaf-spine architecture, fabric path and vpc+. Experience working in a load balanced environment. Experience with F5, NetScaler, Palo Alto and cisco ASA firewalls. Proficiency with VPN technologies such as PAN Global Protect and OpenVPN.
• Scripting and automation experience (Python). Familiarity with deploying and managing networks in a cloud supported. Proficiency with VoIP and Video Conferencing Technology architectures and implementations: Google Hangouts, Zoom, Dialpad. Firm grasp and experience in troubleshooting layer 2 and 3 protocols such as STP, 802.1q, OSPF, BGP, MPLS, LDP, and VRF. Familiarity with 802.11 a/b/g/n/ac radio technologies.

Confidential

Sr. Network Engineer

Responsibilities:

• Proven ability to initiate and complete new projects with minimal direction and guidance, and to conduct them through a project life cycle which includes requirements analysis, design, planning, evaluation, implementation, and formal presentations.
• Played a key role in taking teh organization network to teh through several network projects, including architectural problem analysis, capacity expansion, redundancy, and high availability.
• In-depth Data center networking experience with Cisco Nexus 7K/5K/9K/2K, Cisco ASA Firewalls, and Cisco ASR routers as well as Juniper and Arista router and switches. Experience with NetScaler, Cisco ACE and F5 load balancers.
• Proficiency with BGP, OSPF and EIGRP with proven skills to implement, administer and troubleshoot network operational issues involving. Supported compliance, patching, upgrades and audits. Also participated in Change management meetings for network changes and on-call rotation to provide after hour support.
• Experience with network tools such as Cacti, Nagios, RANCID, SNMP and NetFlow. Able to handle multiple, complex, short term projects and incidents simultaneously. Comfortable documenting, updating and explaining network topologies and diagrams to support future expansion needs.
• Hands-on experience with Cisco Catalyst products (6500, 4900M, 3700 switches). A solid understanding and skills to configure, manage, deploy and troubleshoot multi-vendor network platforms including Cisco legacy switches and routers, Cisco Nexus, (5k, 7k and 2k), Juniper SRX, MX, EX devices, Arista, Palo Alto and Cisco ASA security appliances.
• Demonstrated abilities with networking concepts and protocols, such as VLAN, sub netting, STP, HSRP/VRRP, and network infrastructure protocols such as Confidential /TLS, DNS, DHCP, TFTP, SCP, NTP, FTP, HTTP, SMTP, and LADP. Experience working in large and multiple data center build/migration projects, and teh troubleshooting of complex multi-vendor geographically separated networks.

Confidential

Sr. Network/NOC Engineer

Responsibilities:

• Strong design and implementation experience in TCP/IP networks, including extensive knowledge of networking technologies. Strong experience with layer 2 protocols such as Spanning tree, VPC, and VLAN Trunking.
• Full understanding of Routing Protocols (OSPF, EIGRP, and BGP) and Gateway Redundancy Protocols (HSRP, VRRP, and GLRP) and experience troubleshooting issues with these protocols.
• Experience with application QoS performance and latency tuning and troubleshooting across network architecture. Experience implementing and supporting enterprise systems monitoring and management tools such as Solar Winds. Solid network and systems troubleshooting experience with network protocols (UDP, TCP)
• Strong working knowledge of OSPF and BGP Ability to analyze and assess network architecture requirements and determine optimum, cost-TEMPeffective solutions.
• Contributed to teh, provided recommendations for continuous improvements to workflow, processes, resiliency and technology. Act as a liaison between teh Engineering, and Network architecture.
• Responsible for teh implementation of new network architecture/designs on teh production network. Also, responsible for training teh NOC on new and existing technologies and troubleshooting procedures. Provide overflow support for teh NOC and activations related tasks.
• Designed and produced Root Cause Analysis. Documents as follow up to Major Network and Application outages.
• Management, configuration and deployment of various network routers, switches and firewalls: Cisco routers: 76xx, 72xx, Cisco switches: 65xx, 3560, 3750, 2960, 4948, 4500, 4900M, Cisco firewalls: ASA 5585, ASA 5580, ASA 5550, ASA 5520, Juniper routers/firewalls: Juniper SRX Firewalls, Netscreen firewalls(SSG), Juniper MX series routers and Juniper EX series switches(Juniper Networks devices with JUNOS and Screen OS) as well as Citrix NetScaler, and F5 devices such as GTM and LTMs
• Experience with subnets, VPN (IPSEC site-to-site VPNs), Confidential VPN, VPN tunnel, and Juniper/Cisco client remote access. Strong understanding of MPLS, MPLS/VPN, MP-BGP,
• Application protocols - HTTP, HTTPS, FTP, SMTP, SNMP, Confidential etc., Network Security - IPsec VPN, AAA Architecture, TACACS+, RADIUS as well as Traffic filtering and network traffic analysis. Knowledge of Data Center Architecture - Network, Server, Storage and monitoring tools such as SolarWinds Orion, Nagios, Cacti & Rancid.

Confidential

Sr. Network Engineer

Responsibilities:

• Managed high priority trouble calls and worked closely with teh technicians, and telecommunications carriers to resolve service issues. Participated in on-call rotation for incident support.
• Provided assessment and fulfillment of network support service requests including requests for network reports, documentation, implementations, and modifications and decommissioning of network infrastructure.
• Hands-on technical experience with enterprise data center environments, with solid understanding of teh Cisco L2/L3 switching and routing technologies. Experience to renew and create new network baselines for network performance, trending and capacity planning for routers, switches, firewalls and VPN devices.
• Strong initiative and ability to identify security risks, potential network latencies, and infrastructure threats.
• Ability to work independently within a team, organized and able to communicate with of internal/external clients. Cisco hands-on experience (configuration and troubleshooting) with routing and switching platforms including Cisco 6500, Cisco 4500, Cisco 7200, Nexus 7k, 5k and 2k fabric extenders.
• Support of Global teams working on systems and tools. Helped change requests from end-users, review application migration plans, document project progress via established organizational tracking tools and report results. Maintain basic network functionalities and deployment needs including topology changes, subnetting and troubleshooting.
• A strong understanding of TCP/IP, IP routing protocols (BGP/OSPF/EIGRP), MPLS, VPN/IPSEC, Juniper and Cisco Confidential VPN appliances, knowledge of Layers 4-7; DHCP, SNMP, Confidential, FTP, NTP, HSRP, TFTP, TACACS+, SSH, Traceroute, Syslog as well as experience with route-maps, ACL, NAT/PAT and SMTP.
• Proficiency with switching technologies including, spanning tree (PVST+, RSPT, MST) Port Channels, VPCs and VTP domains

Confidential

Network Engineer

Responsibilities:

• Experience with designing and implementing large-scale networks, network routing, switches and internet-related networking and security as well as providing senior level engineering support with teh and deployment of teh organization's network systems and technologies.
• Provided technical, procedural and operational support to of IT staff to ensure proper integration of systems' functions with teh, firewall, MPLS and wireless operations.
• Coordinated with teh to facilitate network design, enhancements, new implementations and problem resolution. Performed problem analysis, root cause analysis, and provided recommendations for enhancements of teh Data Network, Voice Network, Conferencing and security infrastructure.
• Performed gap analysis and implemented steps for improving service quality. A detailed understanding of teh IP network and teh routing environments, proven network security skills as well as a strong technical experience in teh installation, troubleshooting, integration and operation of various networking equipment.
• Excellent understanding of teh protocols surrounding IP service provider networks. Knowledge and experience in: TCP/IP fundamentals, IP subnetting, and hierarchical routing principals, routing protocol operation, and routing policies.
• Operational knowledge of Cisco routers and a detailed experience configuring and managing Cisco 2800, 3800, and 7200 routers, Cisco 3550/3750, 4500, and 6500 Catalyst Switches in a high availability production environment.
• Hands-on and technical experience with TCP/IP (IPv4) platforms involving protocols such as EIGRP, OSPF, and BGP and their related control protocols as well as a strong working knowledge of TCP/IP enhancements such as multi-cast, QoS techniques, bandwidth path reservation techniques and server load balancing in a 24/7 production environment.
• Experience with NetScaler and Cisco CSS/GSS load balancers; configuration, management, and troubleshooting. Knowledge of Global DNS load balancing, WAN optimization and compression appliances such as: Riverbed, - SHA2020.
• Technical experience with Cisco PIX and Checkpoint firewalls, Juniper SSG520 firewalls, wireless WLAN controller, WISM configurations, Cisco AP (Aironet 12000 series) and Wireless Access Security: Experience with Audio Video conferencing systems using Polycom as well as a working knowledge of VoIP.
• Familiar with enterprise support tools such as CiscoWorks, SolarWinds Orion 8.0, MRTG as well as teh use of teh monitoring tools to monitor and analyze routing and established network metrics including memory usage, latency, error rates, and bandwidth utilization for deployed networks in order to improve network availability.

Confidential

Sr. Network Engineer

Responsibilities:

• Designed, implemented and maintained all corporate network infrastructures on a day-to day basis.
• Involved with very large-scale TCP/IP projects, and production level tasks involving Load Balancing systems: Alteon and Cisco Load Balancers.
• Experience with large-scale sub-netting and network implementations including routing and switching competence in a high-performance network environment. Exceptional experience working with topologies and protocols including OSPF, EIGRP, RIP, BGP, ATM, Frame Relay and VPN.
• Extensive hands-on experience with Cisco 7500, 7200, 3700 and 2600 series routers. Additional hands-on experience working with series switches, Catalyst 4500 and 3750 switches, Cisco 2950 series switches as well as other Cisco layer 2 and 3 switches.

Confidential

Network Engineer

Responsibilities:

• Responsible for teh design, implementation, expansion, monitoring and maintenance of complex network infrastructure of LAN, WAN, Remote Access, VPN and Firewall.
• Working knowledge of TCP/IP, IPsec, 3Des-CBS, DES/3DES, SHA-1, TCP/IP, Linux OS, Internet Security technology and network protocols. Expert knowledge in network design and topologies for teh LAN, WAN and Campus networks with experience in network applications and set up, upgrade and configuration of networking devices such as routers, switches, firewalls and VPN.
• Intimately involved with advanced troubleshooting and resolution of network connectivity problems up to teh. Performed bandwidth performance monitoring and analysis using various network tools such as Cisco Works, Open View and MRTG. Provided support for a production environment.