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Job Title Senior Network Engineer - VXLAN

About the Role Join a highly technical engineering team responsible for designing and evolving large-scale network infrastructure supporting critical technology environments. In this role, you’ll work across data center networking, security, cloud connectivity, SDN, and network automation while helping drive new technologies from proof of concept through production adoption. You’ll have the opportunity to solve complex networking challenges, influence architecture decisions, automate infrastructure delivery, and serve as a technical mentor to other engineers.

What you’ll do:

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.

Experience you’ll need to have:

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 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.

Experience that would be great to have:

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.
VMwarenetworking and infrastructure technologies.
PCI DSS environments.
Internet peering and DDoS protection.
Network automation, configuration templating, and API-driven infrastructure.

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How you’ll work:

Fiserv emphasizes in-person collaboration to help you grow your career while shaping the future of fintech.
This role requires use of a computer and audio equipment

Travel:

Approximately 10% travel off-site or to other office locations is expected

Sponsorship:

To be considered, you must be either a US Permanent Resident or a US Citizen

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This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island, Vermont, Virginia, Maine or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

Thank you for considering employment with Fiserv. Please:

Apply using your legal name
Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

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