Senior Network Infra Engineer - F5/NetScaler (Second Shift)

TRS Recovery Services; Berkeley Heights (NJ); On-site; USD 128,000 - 216,000; Full time

Benefits offered by this job

Annual incentive program

Job summary

Fiserv is seeking a Senior Network Infrastructure Engineer to design, deploy, and optimize global load balancing and DNS infrastructure using Citrix NetScaler and F5. You will lead architecture, troubleshooting, and upgrades across enterprise environments, partnering with infrastructure, security, and vendor teams to deliver secure, scalable solutions.

The role requires in-person collaboration, U.S. citizenship or permanent residency, and a second-shift schedule.

Qualifications

• 8+ years of experience in network, systems, infrastructure engineering.
• 6+ years with Citrix NetScaler and/or F5 design, deployment, and support.
• 4+ years of DNS experience (BlueCat, DNSSEC, F5 XC).

Responsibilities

• Design, deploy, and maintain global load balancing infrastructure using NetScaler and F5.
• Manage DNS configurations and infrastructure.
• Lead platform upgrades, capacity planning, and performance optimization.
• Develop configurations for virtual servers, certificates, and policies.
• Provide guidance across engineering teams and vendors.

Skills

Network engineering

F5/NetScaler

DNS administration

Python/Ansible

Education

Bachelor's degree

Tools

BlueCat DNS

F5 BIG-IP

Job description

Fiserv is seeking a Senior Network Infrastructure Engineer to design, deploy, and optimize global load balancing and DNS infrastructure using Citrix NetScaler and F5. You will lead architecture, troubleshooting, and upgrades across enterprise environments, partnering with infrastructure, security, and vendor teams to deliver secure, scalable solutions.

The role requires in-person collaboration, U.S. citizenship or permanent residency, and a second-shift schedule.