TEKsystems
Overview
Senior/Principal Network Architect (L4-Principal) - Cisco SD Access & Enterprise Networking | Los Angeles, CA (Westwood area) Duration: 6 mo. contract to hire. Frequent travel to client offices in Westwood, CA and to sporting venues around LA/downtown will be required. What you'll do
Own end to end SD Access architecture for large, multi site enterprises: fabric design (control/edge/border), transit options, segmentation (SGTs/TrustSec), identity policy, and integration with WAN and data center. Lead Catalyst Center-driven automation: design templates, SDA workflows, network assurance, SWIM, and closed loop operations aligned to reliability/SLOs. Design identity centric security with ISE: policy sets, authorization profiles, posture, PxGrid integrations, wired/wireless 802.1X/MAB, guest/BYOD, and scalable group policies. Engineer secure edge and campus perimeters: Cisco FTD/Firepower policy design, NAT, VPN, IDS/IPS, SSL decryption strategy, and high availability. Architect SD WAN underlay/overlay: transport independence, application aware routing, DIA/Cloud on ramp, security integration, and multi region scale. Expert routing at scale: BGP (policy, route reflectors, communities), OSPF, EIGRP, ECMP, redistribution strategies, route filtering, summarization, and IPv6 planning. Drive modernization roadmaps: brownfield to SDA migration, hierarchical campus design, QoS, multicast, wireless controller (Catalyst 9800) alignment, and resiliency patterns. Deliver hands on build and escalation leadership: lab validation, pilot, phased rollout, cutover plans, MOPs, change windows, and root cause analysis for P1/P2 incidents. Mentor and uplift engineering teams: design reviews, standards, runbooks, and enablement sessions for operations and field engineers. Stakeholder leadership: collaborate with security, EUC, cloud, and application teams; translate business outcomes into technical architectures and measurable milestones. Documentation & governance: HLD/LLD, as builts, standards, security exceptions, and compliance artifacts; contribute to reference architectures and reusable templates. Required Qualifications (Must Have)
Active CCIE (any track; Enterprise Infrastructure and/or Security strongly preferred). 10+ years enterprise networking experience, including 3-5+ years leading SD Access architecture and deployment across multiple sites. Proven hands on skills with Cisco routing/switching and Catalyst Center (formerly Cisco DNA Center) for SDA automation and assurance. Deep expertise with Cisco ISE (policy, 802.1X, SGT/TrustSec) and Cisco FTD (Firepower) firewalls (threat, access control, NAT/VPN, high availability). Strong experience with Cisco SD WAN (design, policy/templating, security integration, operationalization). Expert level knowledge of BGP, EIGRP, OSPF, redistribution, and route policy design for large enterprises. Demonstrated success leading complex, multi phase migrations and mentoring senior engineers. Preferred Qualifications
CCDE or dual CCIE; Cisco Certified Specialist certifications in SDA, ISE, or SD WAN. Automation fluency (Ansible, Python, Terraform), Git based workflows, and API integration with Catalyst Center/ISE/FTD/SD WAN. Wireless (Catalyst 9800/Prime/Catalyst Center Assurance), QoS strategy, multicast, NAC posture, and Zero Trust segmentation. Cloud networking (Azure/AWS), hybrid connectivity, and DNS/DHCP/IPAM integration. Familiarity with data center and campus interconnect (e.g., ACI concepts beneficial but not required). Work Style & Travel
Must reside in the immediate Los Angeles metro area and be able to work onsite at client site in Downtown LA. Off hours change windows as needed for critical migrations. Onsite expectations: ability to be at client site 5 days per week, may not be required but must be available if needed. Compensation & Benefits
Pay range: $80.00 - $92.00/hr. Eligibility requirements apply to some benefits and may depend on job classification and length of employment. Benefits may include medical, dental & vision; 401(k); life insurance; disability; HSA; transportation benefits; PTO/vacation/sick leave; and more. This is a hybrid position in Los Angeles, CA. Application deadline: anticipated close on Oct 8, 2025. About TEKsystems
TEKsystems is an Allegis Group company and an equal opportunity employer. We partner in transformation and work with clients to activate ideas and solutions. We are a global team of 80,000+ professionals serving thousands of clients, including many Fortune 500 companies, across North America, Europe and Asia. TEKsystems and TEKsystems Global Services are equal opportunity employers and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.
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Senior/Principal Network Architect (L4-Principal) - Cisco SD Access & Enterprise Networking | Los Angeles, CA (Westwood area) Duration: 6 mo. contract to hire. Frequent travel to client offices in Westwood, CA and to sporting venues around LA/downtown will be required. What you'll do
Own end to end SD Access architecture for large, multi site enterprises: fabric design (control/edge/border), transit options, segmentation (SGTs/TrustSec), identity policy, and integration with WAN and data center. Lead Catalyst Center-driven automation: design templates, SDA workflows, network assurance, SWIM, and closed loop operations aligned to reliability/SLOs. Design identity centric security with ISE: policy sets, authorization profiles, posture, PxGrid integrations, wired/wireless 802.1X/MAB, guest/BYOD, and scalable group policies. Engineer secure edge and campus perimeters: Cisco FTD/Firepower policy design, NAT, VPN, IDS/IPS, SSL decryption strategy, and high availability. Architect SD WAN underlay/overlay: transport independence, application aware routing, DIA/Cloud on ramp, security integration, and multi region scale. Expert routing at scale: BGP (policy, route reflectors, communities), OSPF, EIGRP, ECMP, redistribution strategies, route filtering, summarization, and IPv6 planning. Drive modernization roadmaps: brownfield to SDA migration, hierarchical campus design, QoS, multicast, wireless controller (Catalyst 9800) alignment, and resiliency patterns. Deliver hands on build and escalation leadership: lab validation, pilot, phased rollout, cutover plans, MOPs, change windows, and root cause analysis for P1/P2 incidents. Mentor and uplift engineering teams: design reviews, standards, runbooks, and enablement sessions for operations and field engineers. Stakeholder leadership: collaborate with security, EUC, cloud, and application teams; translate business outcomes into technical architectures and measurable milestones. Documentation & governance: HLD/LLD, as builts, standards, security exceptions, and compliance artifacts; contribute to reference architectures and reusable templates. Required Qualifications (Must Have)
Active CCIE (any track; Enterprise Infrastructure and/or Security strongly preferred). 10+ years enterprise networking experience, including 3-5+ years leading SD Access architecture and deployment across multiple sites. Proven hands on skills with Cisco routing/switching and Catalyst Center (formerly Cisco DNA Center) for SDA automation and assurance. Deep expertise with Cisco ISE (policy, 802.1X, SGT/TrustSec) and Cisco FTD (Firepower) firewalls (threat, access control, NAT/VPN, high availability). Strong experience with Cisco SD WAN (design, policy/templating, security integration, operationalization). Expert level knowledge of BGP, EIGRP, OSPF, redistribution, and route policy design for large enterprises. Demonstrated success leading complex, multi phase migrations and mentoring senior engineers. Preferred Qualifications
CCDE or dual CCIE; Cisco Certified Specialist certifications in SDA, ISE, or SD WAN. Automation fluency (Ansible, Python, Terraform), Git based workflows, and API integration with Catalyst Center/ISE/FTD/SD WAN. Wireless (Catalyst 9800/Prime/Catalyst Center Assurance), QoS strategy, multicast, NAC posture, and Zero Trust segmentation. Cloud networking (Azure/AWS), hybrid connectivity, and DNS/DHCP/IPAM integration. Familiarity with data center and campus interconnect (e.g., ACI concepts beneficial but not required). Work Style & Travel
Must reside in the immediate Los Angeles metro area and be able to work onsite at client site in Downtown LA. Off hours change windows as needed for critical migrations. Onsite expectations: ability to be at client site 5 days per week, may not be required but must be available if needed. Compensation & Benefits
Pay range: $80.00 - $92.00/hr. Eligibility requirements apply to some benefits and may depend on job classification and length of employment. Benefits may include medical, dental & vision; 401(k); life insurance; disability; HSA; transportation benefits; PTO/vacation/sick leave; and more. This is a hybrid position in Los Angeles, CA. Application deadline: anticipated close on Oct 8, 2025. About TEKsystems
TEKsystems is an Allegis Group company and an equal opportunity employer. We partner in transformation and work with clients to activate ideas and solutions. We are a global team of 80,000+ professionals serving thousands of clients, including many Fortune 500 companies, across North America, Europe and Asia. TEKsystems and TEKsystems Global Services are equal opportunity employers and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.
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