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Senior Network Engineer (Data Center)

Company: H E B
Location: San Antonio
Posted on: September 14, 2020

Job Description:

The Network Maintenance and Operations Team maintains performance of the complex data network and equipment for H-E-B, and ensures network improvements are successfully implemented and monitored to increase efficiency.
As a Senior Network Engineer - Datacenter, you will analyze, design, install, configure and support network infrastructure and application availability and visibility across the Active-Active HEB Datacenters and different Public Clouds. You will analyze current processes and systems and assist in automating repetitive operational functions. You will also drive problem-management efforts for complex network outages.

We are looking for:

  • Computer Science Degree; one or more network certifications
  • 5+ years of experience designing and managing large enterprise distributed network environments
  • An expert in data network analysis, design, engineering, and automation who will serve as a source of direction, training, and guidance for others
  • Analytical and problem-solving skills

    What is the work?

    Network Design, Configuration, and Support:
    • Leads infrastructure work related to datacenter networks / services
    • Plans, designs, evaluates, configures, maintains, and selects network operating systems / firmware and related protocol suites
    • Provides support to technical network systems
    • Provides in-depth assessment of customers' networked application needs, provides network modeling and simulation consulting, and engineers appropriate solution
    • Creates and updates network documentation and schematics
    • Plans for hardware and resource provisioning per requirement projections and capacity forecasting
    • Configures, updates, and manages VIP configurations on F5 load balancers for various mission-critical business applications
    • Recommends, schedules, performs network enhancements and upgrades
    • Reviews access control list (ACL) rules on Cisco ASA & Fortinet firewall platforms for troubleshooting purposes
    • Performs Cisco ASA & Fortinet firewall replacements and upgrades
    • Conducts routine network firewall/network infrastructure audits for compliance purposes
    • Maintains network security through proper configuration of devices according to best practices
    • Adheres to architected technology roadmaps in designs and implementations
    • Supports complex projects requiring additional specialized technical knowledge
    • Coordinates with technical and non-technical employees and clients to determine requirements
    • Monitors internal and vendor service level agreements (SLAs); identifies / resolves SLA gaps; tracks circuits inventory (orders and disconnects), cost and related budgets; reports regularly
    • Acts as technical Subject Matter Expert (SME) for cross-functional IT Teams, providing assistance and troubleshooting for network-related application issues and maintenance of complex network technology stacks
    • Participates in weekly on-call rotation

      Troubleshooting / Analytics:
      • Proactively identifies and assesses network issues, performs troubleshooting, researches solutions, focusing on root cause
      • Monitors / responds to network incidents, triages, and resolves the problem
      • Investigates and remediates network capacity-related issues
      • Troubleshoots Datacenter, Public Cloud connectivity and Perimeter WAN issues
      • Performs analysis and fine-tuning of tools designed for monitoring network and system availability and performance (packet loss, network utilization, traffic flows)
      • Participates in research and recommendations of new technologies related to data network
      • Performs advanced troubleshooting across multiple technologies and functional areas
      • Conducts network assessments and recommends performance improvements for Datacenter technologies
      • Implements / tests formal disaster recovery procedures for the network as required
      • Contributes significantly to assessments of new technical network system technologies

        • Develops / monitors mentoring plans through on-the-job training for other team members
        • Establishes and communicates common goals and direction for team
        • Documents / encourages others on H-E-B standards and procedures

          What is your background?

          • Bachelor's degree or higher in computer science, engineering, or related field, OR equivalent work experience
          • 5+ years of experience designing and managing large enterprise distributed network environments
          • CCNP, CCIE, JNCIS, JNCIE, VCP-NV or similar network-based certifications
          • Expertise in the following networking technologies and standards: IP Routing, Traffic engineering, QoS, Multicasting, Local Area Network (LAN), Wide Area Network (WAN), DCI (datacenter interconnects), Overlay technologies
          • Efficient with network monitoring, logging, packet captures and network tapping solutions (Gigamon)
          • Expertise with DNS (managing zones), DHCP, IPAM and NTP services
          • Expert knowledge and proven experience with Cisco routing (ISR, ASR, NCS), Cisco/Arista/Aruba data center switching (NX-OS, AOS, Aruba OS-CX) and routing protocols (BGP, EIGRP, OSPF)
          • Experience with data center technologies such as MPBGP-EVPN, VXLAN Overlay Networking, MLAG, VPC, Multicast and GRE
          • Expert knowledge of Datacenter Firewalling, segmentation, micro-segmentation and VPN services with vendors like Cisco, Palo Alto, Fortinet
          • Experience designing, managing and supporting 3 tier (Core, Agg, Access) & Spine-Leaf (CLOS) Datacenter Active -Active network fabric architectures (Arista, Cisco, Juniper, Cumulus etc.)
          • Experience designing, configuring and troubleshooting virtual networking platforms such as VMware NSX/VMware VDS (SDDC)
          • Proven experience deploying, configuring and troubleshooting F5 BIG-IP portfolio including LTM, ASM, GTM/DNS (or other load-balancing solutions)
          • Experience in leveraging network automation tools, methodologies to streamline network operations processes and tasks: Git, Gerrit, Ansible, Puppet, YAML, JSON, Jinja2, Python, Jenkins, Batfish, Netmiko etc.
          • Experience with Cloud Networking (AWS, GCP, Azure) - designing, deploying and troubleshooting VPCs, VPNs, Virtual-Routers over Cloud Exchange (GCP Partner-Interconnect, Azure ExpressRoute, AWS Direct-Connect), cloud certifications a plus.

            Preferred Key Competencies

            • Reducing MTTR by leveraging various network troubleshooting tools and applying innovative methods
            • Solid understanding of TCP/IP, Routing, Switching, load-balancing and firewall segmentation services
            • Comfortable with an "API first" approach i.e. treating infrastructure as code
            • Demonstrated analytical, problem-solving, communication and time management skills
            • Basic Project Management skills - Agile, Waterfall
            • Ability to work efficiently in a fast-paced technical environment with increasing support demands and complexity
            • Ability to prioritize and manage assigned tasks to meet deadlines and objectives


Keywords: H E B, San Antonio , Senior Network Engineer (Data Center), Engineering , San Antonio, Texas

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