Senior Network Engineer
Philadelphia, PA, United States Hybrid
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About the role
The Senior Network Engineer is a hands-on technical leader responsible for designing, implementing, securing, and supporting CES’s enterprise network infrastructure across North America, India, Vietnam, and Japan. This position reports to the Senior Cloud and Network Security Architect. The role serves as the primary owner of on-premises routing, switching, firewall, and network security platforms and supports their integration with CES’s cloud and hybrid environments. The successful candidate must be able to manage competing priorities, lead complex network projects, and maintain reliable day-to-day operations. This position works directly with internal stakeholders and external clients to address connectivity requirements, resolve service-impacting issues, and communicate clearly with both technical and non-technical audiences. This is an on-site position based at CES’s Philadelphia headquarters. A hybrid work arrangement may be considered in the future based on operational needs and demonstrated performance.
What you'll bring
- equivalent professional experience will be considered.
- 7+ years of hands-on enterprise network engineering experience in a multi-site, multi-vendor environment.
- Experience supporting globally distributed networks across remote locations and hybrid on-premises and cloud infrastructure.
- Advanced experience administering Cisco ASA and Cisco Firepower/FMC, including policy management, NAT, IPS/IDS, and SSL inspection.
- Advanced experience with Cisco ISE, including 802.1X, NAC, RADIUS/TACACS+, endpoint profiling, and posture assessment.
- Hands-on experience with F5 BIG-IP, including LTM and ASM/WAF
- Advanced proficiency configuring and troubleshooting BGP, OSPF, and EIGRP in complex, multi-path environments.
- Strong knowledge of WAN architecture, multi-circuit connectivity, redundancy, failover, and fault-tolerant design.
- Hands-on experience integrating on-premises networks with AWS, Azure, or GCP, including hybrid routing, connectivity, and security.
- Ability to manage multiple projects and operational priorities in a fast-paced environment.
- Excellent written and verbal communication skills, including the ability to communicate with technical and non-technical audiences.
- Demonstrated client-facing experience coordinating solutions, explaining service impact, and managing high-pressure incidents