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Fiserv

Senior Network Engineer, VXLAN

Fiserv

. Design and deliver highly available data center, network security, cloud connectivity, SDN, and automation solutions .

Posted 10/28/2026full-timeUnited StatesSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and supporting complex enterprise networks, with a strong focus on BGP, MPLS, and network automation using Python and Ansible. Proven ability to troubleshoot network performance issues and provide technical leadership in multi-data-center environments.

Highest-signal resume keywords
BGP ExpertiseNetwork Automation Using PythonMPLS Network DesignMulti-Data-Center SupportTechnical Leadership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
BGPMPLSEVPNVXLANNetwork AutomationRouting PoliciesSDN TechnologiesTCP/IPDNSDHCP
Soft Skills
Technical LeadershipMentorship
Tools & Technologies
AnsiblePythonJinjaGitLabNetBoxAPIs
Industry Keywords
Data CenterNetwork SecurityCloud ConnectivityMulti-Tenant EnvironmentsInfrastructure-as-Code

Tech Stack

Tools & technologies
AnsibleCloudDNSPythonTCP/IP

About the role

Key responsibilities & impact
  • 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 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

Requirements

What you’ll need
  • 6+ years of experience designing, deploying, and supporting complex enterprise or data center networks
  • 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 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 either a US Permanent Resident or a US Citizen

Benefits

Comp & perks
  • Approximately 10% travel off-site or to other office locations is expected