Sr. Enterprise Network Engineer

At Jack Henry, we’re more than a technology company, we’re a force for good in financial services. We’re redefining how community banks and credit unions connect with the people they serve. Our mission is rooted in people inspired innovation, empowering financial institutions to deliver seamless, secure, and human centered experiences. We deliver cutting-edge solutions that are paving the way for the next generation of digital banking and payments, but our true impact begins with our associates.

If you're ready to help transform an industry and grow with a company that values purpose, collaboration, and excellence then we’d love to meet you

At Jack Henry, we're seeking a Senior Network Support Engineer to become a vital part of our Enterprise Network team. In this role, you'll oversee and enhance our sophisticated network infrastructure, which spans from datacenters to millions of end-users across financial institutions. Our technology environment combines cutting‑edge wired and wireless solutions, offering you a chance to innovate and excel.

As a Senior Network Support Engineer, you'll manage network moves, upgrades, and incident resolution. You'll troubleshoot complex wired and wireless connectivity issues, implement network optimizations, and ensure robust, high‑performing connectivity across our organization. This is an ideal opportunity for professionals eager to leverage their expertise in enterprise‑scale environments and grow within a fast‑paced, technology‑driven organization.

This position may be worked remotely within the United States, with the exception of California.

All positions, regardless of location, may require an onsite interview or in‑person onboarding requirement to verify your identity.

Must be able to travel up to 20% to attend onsite meetings or trainings.

• Assist in maintaining and deploying multi‑vendor high‑availability network solutions to support enterprise and data centers environments, ensuring compliance with financial industry regulations and security standards.
• Configure and maintain network devices such as routers, switches, Wireless Controllers (eg Cisco, Arista).
• Support the implementation of dynamic routing and transport protocols such BGP, EIGRP, OSPF, MPLS.
• Maintain and leverage network automation scripts using Python, Ansible to safely execute changes to production network devices.
• Provide hardware and software support for the Wireless Environment across all Jack Henry locations.
• Collaborate with cross‑functional teams, including Security, Systems, and Operations, to deliver reliable and secure network services.
• Utilize existing SOPs to execute disaster recovery and business continuity exercises.
• Participate in capacity planning and network expansion projects, ensuring scalability and future proofing of the infrastructure to meet the growing needs of banks and credit unions.
• Create and maintain detailed network documentation, including diagrams, configurations, and operational procedures.
• Regularly troubleshoot, resolve network issues
• Participate in on‑call rotation with other members of the team
• Providing guidance to junior engineers and support staff.
• Stay current with emerging networking technologies and recommend improvements to enhance performance and reduce operational risk.
• May perform other duties as assigned.

• At least 6 years of experience in network engineering within a large enterprise environment.
• Expertise in Layer 2 and Layer 3 networking protocols, including VLANs, STP, BGP, OSPF, MPLS, and Wi‑Fi technologies.
• Hands‑on experience with network automation and scripting (eg Ansible/Python).
• Familiarity with SD‑WAN and cloud networking solutions (eg AWS, Azure, or Google Cloud).
• Strong analytical and problem‑solving skills.
• Excellent communication and documentation skills.

• Bachelor’s degree in computer science, Information Technology.
• Cisco CCIE or CCNP.
• Arista ACS.
• Working Knowledge of Cisco ACI and Arista Fabric networking solutions.
• Datacenter or service provider routing and switching experience.
• Experience deploying MOPs.
• Experience in the Fintech or Financial Services…