Senior Network Engineer - F5 and Application Delivery

Switchboard; United States; Hybrid; USD 135,000 - 150,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Open vacation policy

401(k) with employer match

Discretionary contributions

Job summary

Switchboard is seeking a Senior Network Engineer on behalf of Open Technology Solutions (OTS) to lead engineering and ownership of OTS's enterprise F5 platform. This hybrid role is based in Centennial, CO and involves direct ownership of critical application delivery infrastructure.

The position requires hands-on expertise with F5 BIG-IP (APM/LTM), thorough knowledge of networking protocols, and collaboration across security and infrastructure teams to ensure secure, highly available delivery.

Qualifications

• F5 APM/LTM engineering experience required (1+ year).
• Strong understanding of TCP/IP, DNS, HTTP/S, SSL/TLS, SAML, VPN, iRules, and application traffic flows.
• Demonstrated ability to independently troubleshoot complex application delivery and network performance issues.

Responsibilities

• Serve as the technical owner for F5 BIG-IP, with extensive focus on APM, LTM, and DNS/GTM.
• Engineer and optimize application delivery, secure remote access, authentication, SSO, load balancing, and high-availability solutions.
• Lead end-to-end application troubleshooting across network, firewalls, authentication, load balancers, servers, and application layers.
• Drive platform modernization, lifecycle management, monitoring, automation, resiliency, and engineering standards.
• Partner with application, infrastructure, and security teams to resolve complex performance and connectivity issues.
• Support broader network engineering initiatives, including routing, switching, firewalls, connectivity, and incident response as needed.

Skills

Platform ownership mindset

Troubleshooting complex delivery

Tools

F5 BIG-IP APM/LTM

Cisco Networking

Palo Alto

DNS/HTTP/S/SSL/TLS

Job description

Switchboard is seeking a Senior Network Engineer on behalf of our client, Open Technology Solutions (OTS). This is a full-time, direct-hire role for an experienced engineer to lead engineering and technical ownership of OTS's enterprise F5 platform. This is a hands-on opportunity to own critical application delivery infrastructure, influence technical architecture, and help modernize a highly available, secure enterprise network environment. If you have deep F5 expertise, troubleshoot across technology boundaries, and want to own a platform rather than just work tickets on it, we want to hear from you.

About Open Technology Solutions

Open Technology Solutions (OTS) is a CUSO (Credit Union Service Organization) providing shared technology services to credit union partners. Built on a cooperative model, OTS delivers enterprise-grade IT infrastructure, support, and innovation to its partner organizations, allowing them to compete at a higher level while keeping costs in check. OTS operates with the values of a credit union at its core: member-focused, collaborative, and committed to long-term relationships over short-term wins.

Responsibilities

• Serve as the technical owner for F5 BIG-IP, with extensive focus on APM, LTM, and DNS/GTM.
• Engineer and optimize application delivery, secure remote access, authentication, SSO, load balancing, and high-availability solutions.
• Lead end-to-end application troubleshooting across network, firewalls, authentication, load balancers, servers, and application layers.
• Drive platform modernization, lifecycle management, monitoring, automation, resiliency, and engineering standards.
• Partner with application, infrastructure, and security teams to resolve complex performance and connectivity issues.
• Support broader network engineering initiatives, including routing, switching, firewalls, connectivity, and incident response as needed.

Qualifications

• 1+ years of F5 APM and LTM engineering experience is required.
• Strong understanding of TCP/IP, DNS, HTTP/S, SSL/TLS, SAML, VPN, iRules, and application traffic flows.
• Demonstrated ability to independently troubleshoot complex application delivery and network performance issues.
• Broad enterprise networking experience; Cisco and Palo Alto experience preferred.
• F5 certifications and financial services experience are a plus.
• A platform-ownership mindset. You own the outcome, not just the task.
• Collaborative and continuously improving. You leave the platforms you support better than you found them.

Compensation & Details

Compensation: $135K-$150K + 10% bonus

Benefits: Medical, dental, and vision; open vacation policy and paid sick time; up to 11 paid holidays; 401(k) with employer match and discretionary contribution

Schedule: Full-time. Includes on-call rotation and after-hours maintenance windows.

Location: Centennial, CO. Hybrid, 3 days in office / 2 remote.

Reports to: Head of Infrastructure

Sponsorship not available. Position only available to those with legal authorization to work in the United States.