Senior Network Engineer
First seen by Alion on Oct 2, 2026.
We are Systematix and we are currently looking for a Senior Network Engineer – Routing, Switching & SD-WAN to design, implement, optimize, and support enterprise network infrastructure for one of our key technology partners.
ABOUT THE PROJECT
Our client operates a large, globally distributed enterprise technology environment requiring reliable, scalable, and highly available connectivity across corporate locations, data centres, cloud environments, and external service providers.
As part of the Network Engineering team, the Senior Network Engineer will focus primarily on enterprise routing, switching, WAN, SD-WAN, and site connectivity. The successful candidate will bring deep Cisco networking expertise along with strong knowledge of routing protocols, resilient WAN architectures, VPN technologies, and cloud connectivity. This is a senior, hands-on engineering role that will include both project-based engineering and Tier 3 operational support across a complex enterprise network.
ABOUT THE RESPONSIBILITIES
- Design, implement, configure, and optimize enterprise routing solutions using BGP, OSPF, VRF, route redistribution, route filtering, and routing policies.
- Design, deploy, and maintain WAN, internet, colocation, and site connectivity across global locations.
- Engineer and troubleshoot IPsec VPN, Quality of Service, high-availability, and cloud connectivity solutions.
- Configure, maintain, and troubleshoot Cisco IOS-XE routers and Cisco Catalyst and Nexus switching platforms.
- Support resilient enterprise routing and switching architectures across data centre, office, WAN, and cloud environments.
- Support SD-WAN technologies and ongoing network modernization initiatives.
- Evaluate network performance and recommend improvements to availability, resiliency, scalability, performance, and supportability.
- Provide Tier 3 escalation support for complex routing, switching, WAN, VPN, and connectivity incidents.
- Participate in an on-call support rotation as required.
- Develop and maintain network diagrams, routing standards, configuration templates, operational procedures, and technical documentation.
- Collaborate with Network Security, Cloud, Infrastructure, Operations, service providers, and business stakeholders.
- Work with carriers and technology vendors to troubleshoot connectivity and service issues.
- Contribute to network automation, standardization, and continuous improvement initiatives.
ABOUT THE REQUIREMENTS
- Bachelor's degree or equivalent combination of education and practical experience.
- Strong hands-on experience designing and supporting complex enterprise networks.
- Deep knowledge of BGP, OSPF, VRF, route redistribution, route filtering, and routing policy.
- Extensive experience with Cisco IOS-XE routers and Cisco Catalyst and Nexus switching platforms.
- Strong experience designing and troubleshooting resilient WAN architectures.
- Experience with IPsec VPNs, Quality of Service, high-availability architectures, and carrier circuits.
- Experience with network authentication and access technologies, including Cisco ISE, TACACS, RADIUS, and 802.1X.
- Experience with networking within Microsoft Azure and/or AWS.
- Strong understanding of enterprise routing, switching, WAN, and network connectivity principles.
- Strong technical troubleshooting and analytical capabilities.
- Ability to diagnose complex network issues across multiple technologies and environments.
- Strong technical documentation skills.
- Excellent written and verbal English communication skills.
- Ability to work effectively with technical teams, service providers, and business stakeholders.
PREFERRED QUALIFICATIONS
- Experience with Palo Alto ION SD-WAN.
- Experience with Palo Alto firewalls and network security technologies.
- Experience with Zscaler.
- Experience with F5 LTM and/or Cloudflare.
- Experience with Python, Terraform, or other infrastructure-as-code and network automation technologies.
- Experience with DNS, DHCP, and Infoblox.
- Familiarity with VMware and Linux environments.
- Experience supporting complex, global enterprise networks.
ABOUT THE ROLE
This is an initial 6-month remote contract opportunity with the potential for extension based on ongoing business requirements.
Candidates for this position must be based in the United States. Eastern or Central Time Zone candidates are preferred, although candidates located farther west may be considered based on experience and fit.
The role may require occasional travel, with convenient access to Boston, Cleveland, and Washington, D.C. being beneficial. The successful candidate will also participate in an on-call rotation supporting business-critical network services.
AI DISCLOSURE
As part of our recruitment process, Systematix may use artificial intelligence (AI) tools to assist with resume screening, candidate matching, and recruitment administration. All hiring decisions are ultimately made by our recruitment and hiring teams.
APPLY NOW
If you are interested in finding out more, please contact us or submit your resume to [email protected].
Know someone who would be a great fit? We welcome referrals of qualified candidates and are always interested in connecting with talented technology professionals.
ABOUT SYSTEMATIX
Systematix is a Canadian-owned Global Consulting and Resourcing firm with nearly 50 years of experience delivering technology solutions to clients across North America and the United Kingdom. We provide the highest-caliber consulting solutions to a diverse client base across all levels of government and private industry. Systematix is committed to creating a diverse, inclusive environment and is proud to be an equal opportunity employer. At Systematix, we value diverse perspectives, experiences, and backgrounds.
Systematix. Solutions Focused. People Driven.