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Principal Software Engineer
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The Principal Software Engineer is responsible for shaping the technical direction of our products and driving the overall engineering strategy for our flagship initiatives. The position…
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Manager F5 & Application Delivery Operations
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Kforce has a client that is seeking a Manager, F5 and Application Delivery Operations in Greenwood, CO.
Added 1 min ago
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Senior F5 Engineer
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- $60 to $79 USD / hour
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Lead Principal Data Systems Software Engineer
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IT Analyst IV
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Confluent - Senior Security Engineer (Sr. AppSec)
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Senior Platform Engineer - NBA
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The Senior Platform Engineer keeps the entire NBA platform healthy, reliable, and maintainable for the long term. You develop a working understanding of every layer of the technology stack…
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Sr. Application Security Engineer
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We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
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Senior Decision Intelligence Engineer
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The Senior Machine Learning Engineer, Decision Intelligence is a hands-on individual contributor responsible for building, deploying, and operating ML and decisioning pipelines for the NBA…
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Software Engineer 1
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This Software Engineer 1 role will support the development of the EMSL Science Central technology platform with a focus on backend services, data infrastructure, and platform reliability.…
Added 10 mins ago
Principal Software Engineer
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The Principal Software Engineer is responsible for shaping the technical direction of our products and driving the overall engineering strategy for our flagship initiatives. The position…
Added 10 mins ago
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Agentic AI Engineer, Senior
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As an AI and Data Science Engineer III on the AI & Data team, you will be responsible for driving technology-focused client delivery across complex engagements.
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Infrastructure Engineer-Network Automation Focused
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- $11.41 USD / hour
We are seeking a highly skilled and automation-focused Infrastructure Engineer to join our banking technology team. This role is responsible for designing, implementing, automating,…
Added 10 mins ago
EG
Senior Data Engineer
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Saint Paul, MN
- $101,000 to $161,800 USD / year
Our client seeks a Senior Data Engineer to own the governed transformation layer end-to-end. The role will design and build Snowflake transformation layers, migrate legacy SQL views and…
Added 17 mins ago
BV
Cloud Networking Engineer
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Remote, United States
- $100,000 to $150,000 USD / year
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Added 17 mins ago
Container Platform Engineer
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We are seeking an experienced Container Platform Engineer to design, deploy, and operate enterprise-grade Red Hat OpenShift container platforms running mission-critical workloads across…
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Web Developer
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Fiserv

Senior Network Infrastructure Engineer – F5 / NetScaler

Greenwood Village, CO, United States

$109,000.00 - $182,400.00

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Job details

Pay: $109,000.00 - $182,400.00
Posting language: English
Posted: Oct 29, 2026

Original job description

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 Infrastructure Engineer – F5 / NetScaler

About your role

You will serve as a senior technical engineer supporting enterprise load balancing and DNS. You will lead the design, deployment, optimization, and troubleshooting of highly available infrastructure solutions, with a strong focus on F5 and Citrix NetScaler technologies. You will support Fiserv’s government programs, partnering with infrastructure, application, security, and vendor teams to deliver secure, resilient, and scalable solutions.

What you’ll do

Design, deploy, and maintain a critical local and global load balancing infrastructure using Citrix NetScaler and F5 solutions.
Manage DNS infrastructure and configurations
Design and implement load balanced application configurations
Provide technical leadership and design guidance for application teams.
Troubleshoot complex infrastructure issues and drive problems through resolution
Lead platform upgrades, configuration changes, capacity planning, and performance optimization
Develop and maintain configurations for virtual servers, certificates, policies, and related services
Understand encryption technologies commonly used by web applications, DNS, and load balancing
Partner with application, infrastructure, security, OEM, and vendor teams on technical solutions
Operate in a regulated, controlled financial environment.
Develop technical standards, documentation, and implementation procedures
Identify opportunities to improve and automate infrastructure processes using tools such as Python and Ansible
Provide technical guidance and knowledge sharing across engineering teams

Experience you’ll need to have

8+ years of experience in network, systems, infrastructure engineering, or a related field
6+ years of experience with Citrix NetScaler and/or F5 design, deployment, and support
6+ years of experience with technologies such as LTM, GTM, HA, GSLB, ad content switching.
4+ years of DNS experience, such as Bluecat, DNSSEC, and F5 XC.
Experience troubleshooting complex financial, regulated, enterprise infrastructure environments
Bachelor’s degree in computer science, engineering, information technology, business, or a related field, or an equivalent combination of education, related experience, and/or military experience

Experience that would be great to have

Experience with Python, Ansible, or other infrastructure automation tools
Experience with multi-factor authentication solutions
Experience supporting large-scale infrastructure migrations or modernization initiatives
F5 certifications such as F5-CTS or F5-CSE
Strong communication skills and experience working across technical teams, vendors, and business partners

Important information about this role

This position requires in-person collaboration
Must possess U.S. Citizenship or U.S. Permanent Resident (Green Card) status
This position will work a second-shift schedule

How you’ll work

This role requires the use of a computer and audio equipment

#Hiring #NetworkEngineering #F5 #F5BIGIP #NetScaler #LoadBalancing #InfrastructureEngineering #CloudInfrastructure #TechJobs #L1-CD1

Salary Range

$109,000.00 - $182,400.00

These pay ranges apply to employees in Colorado, Hawaii, Illinois, Nevada, Rhode Island, Vermont and Washington. Pay ranges for employees in other states may differ.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion.

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

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.

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.

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More about this job

Skills

DNS
Troubleshooting
Leadership
Troubleshoot
Documentation
Python
Ansible
Computer science
Computer technology
Communication skills
Collaboration
Audio technology

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