Senior Network Engineer - VXLAN
About The Position
Join Fiserv’s highly technical engineering team, responsible for designing and evolving large-scale network infrastructure supporting critical technology environments. The role spans data center networking, security, cloud connectivity, software-defined networking (SDN), and network automation, and includes guiding new technologies from proof of concept through production adoption. The engineer will solve complex networking challenges, influence architecture decisions, automate infrastructure delivery, and mentor other engineers. Fiserv emphasizes in-person collaboration. The role requires use of a computer and audio equipment and approximately 10% travel off-site or to other office locations. Applicants must be U.S. permanent residents or U.S. citizens. The role cannot be performed in Colorado, California, the District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island, Vermont, Virginia, Maine, or Washington.
Requirements
- At least 6 years of experience designing, deploying, and supporting complex enterprise or data center networks.
- At least 5 years of experience supporting multi-data-center and/or multi-tenant environments.
- Strong expertise with BGP and dynamic routing, including complex routing policies and route manipulation.
- Experience designing highly available underlay and overlay networks, including MPLS, EVPN, and VXLAN.
- Experience with SDN technologies such as SD-WAN, NFV, and cloud connectivity/peering.
- Strong knowledge of TCP/IP, DNS, DHCP, VLANs, VRFs, OSPF, BGP, IPsec, MLAG/vPC, STP, Anycast, SSL/TLS, and related technologies.
- Experience with network automation and infrastructure-as-code concepts using tools such as Python, Ansible, Jinja, GitLab, NetBox, and vendor APIs.
- Bachelor’s degree in computer science or a related field, or an equivalent combination of education, military experience, and professional experience.
- Must be a U.S. permanent resident or U.S. citizen.
Nice To Haves
- Large-scale Layer 2/Layer 3 data center network engineering.
- Cisco IOS-XE/NX-OS and Arista EOS.
- EVPN/VXLAN-based data center fabrics.
- Complex BGP routing and traffic-engineering policies.
- VMware networking and infrastructure technologies.
- PCI DSS environments.
- Internet peering and DDoS protection.
- Network automation, configuration templating, and API-driven infrastructure.
Responsibilities
- Design and deliver highly available data center, network security, cloud connectivity, SDN, and automation solutions.
- Evaluate emerging technologies and vendor solutions through technical assessments and proofs of concept.
- Design and support complex multi-data-center and multi-tenant network architectures.
- Engineer underlay and overlay architectures using technologies such as BGP, EVPN, VXLAN, MPLS, and VRF.
- Develop and manage advanced routing policies, including complex BGP route manipulation.
- Support Internet connectivity, public IP management, peering, and DDoS protection.
- Automate network provisioning and configuration using Python, Ansible, Jinja, APIs, YAML, JSON, and related tools.
- Partner with infrastructure, cloud, security, and application teams to drive adoption of new network capabilities.
- Troubleshoot complex network performance, routing, availability, and connectivity issues.
- Provide technical leadership and mentorship to other engineers.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
