Senior Network Engineer
Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Oct 26, 2026. Fiserv scores A on the Alion truth index.
Calling all innovators - find your future at Fiserv.
We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
Job Title
Senior Network EngineerAbout Your Role:
A qualified candidate can expect a fast-paced, challenging & rewarding role in delivering a variety of Network, Security, Cloud, Virtualization, SDN & Automation technologies. Candidates should expect to be an integral part of Fiserv’s many transformative initiatives that will institute automated self-service solutions to efficiently deliver on internal & external customer demands.
What you’ll do:
- Deliver a variety of network, security, cloud, virtualization, SDN, and automation technologies
- Drive early concept assessments through POCs to ensure validity of proposed industry and vendor solutions
- Partner with other teams across the organization to ensure internal adoption of such solutions and remain engaged throughout their lifecycles
- Serve as a mentor to other engineers
Experience you’ll need to have:
- 6+ years of experience with complicated Network/Security designs to Management and Business partners
- 5+ years of experience with Multi-Tenant & Multi-Data-Center deployments
- 5+ years of experience in tuning and diagnosing dynamic routing protocols and associated attributes for complex route manipulation
- 4+ years of experience with Software Defined Networking Solutions (SDWAN, NFV, Cloud Provider Peering)
- Experience in designing/deploying/maintaining highly available Underlay & Overlay Networking & Security constructs (MPLS, eVPN, VxLAN)
- Experience in provisioning/protecting/maintaining Internet peering points, Public IP Management and DDOS services
- Experience in Coding/Scripting languages (Python, Ansible, Powershell, Netmiko, Netconf, Napalm, Jinja, Yaml, JSON, API’s)
- Experience in deploying/diagnosing the following protocols & functions: IP, TCP, UDP, DNS, DHCP, HTTP/S, VLANs, MPLS, IPSEC, DMVPN, BGP, OSPF, EIGRP, VRF, VxLAN, RPKI, eVPN, VRRP, MLAG, VPC, STP, Anycast, IPSEC, SSL, TLS
- Bachelor’s degree in computer science, or a relevant field, or an equivalent combination of education, work, and/or military experience
Experience that would be great to have:
- Experience in deploying & maintaining large scale L2 & L3 Data Center Networks
- Experience with Cisco (IOS/XE & NXOS) and Arista (EOS) Data Center equipment
- Functional understanding of PCI/DSS controls, protections & best practices
- Layer1 & 2 Protocols (Spanning-Tree modes and modifications, Trunking, MLAG/VPC)
- Data Center Fabric deployment types (FabricPath, VxLAN, EVPN)
- Interconnecting disperses Data Center Fabric technologies (VxLAN, EVPN)
- Layer3 Routing Protocols and Network Routing techniques (BGP, OSPF, EIGRP)
- Deploying/Managing Complex BGP routing policies
- Experience with VMWare platforms and Networking (VMotion, HCX, FXRails, VxRails)
- Experience with Automation Toolsets, Scripting & Config Templating (GitLab, Python, Jinja, Netbox, Vendor API's)
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:
- In order to be considered, you must be either a US Permanent Resident or a US Citizen
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 [email protected]. 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. Pleasedo not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.
Warning about fake job posts:
Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.