Job Description

One of our major clients in the Oil & Gas industry is looking for an ACI Datacenter Segmentation Engineer to join their team.  Long term Contract- 1 year (Extendable)
Location – Houston Downtown - Onsite (5 days a week)
 W2 Employment only/ No C2C/ No SponsorshipSenior Network Engineer – ACI / SD-Access / Campus Segmentation Location: Onsite 5 days per week, Houston TX
Our client is seeking a highly experienced Senior Network Engineer to lead the design and deployment of Cisco ACI and SD-Access solutions across campus and data center environments. This individual will play a pivotal role in enabling end-to-end segmentation and access control by integrating Cisco ACI, ISE, and DNA Center within a unified enterprise network fabric.The ideal candidate is deeply hands-on with Cisco ACI—including segmentation, policy enforcement, and integration with campus switching—and brings proven experience implementing secure, scalable enterprise architectures.Key Responsibilities: 

• Lead the design, configuration, and deployment of Cisco ACI fabric, including application profiles, endpoint groups (EPGs), and contracts.
• Architect and implement SD-Access across campus environments, integrating with Cisco DNA Center and ISE for identity-based access and policy enforcement.
• Develop and execute ACI segmentation strategies, including mapping user groups and endpoints using security group tags (SGTs) from ISE.
• Ensure seamless integration of campus switching, desktop VLANs, and data center networks within the ACI-based fabric.
• Oversee end-to-end segmentation and access control, from wired/wireless edge through the core network to the data center.
• Collaborate with security, desktop, and application teams to align segmentation with organizational access policies.
• Provide troubleshooting, optimization, and ongoing support for the ACI/SD-Access environment.
• Mentor junior engineers and lead cross-functional project efforts.

Required Qualifications: 

• 8+ years in enterprise networking, with deep, hands-on experience in Cisco ACI.
• Strong expertise with Cisco ISE, Cisco DNA Center, and SD-Access deployments.
• Demonstrated experience with ACI segmentation design and implementation (SGTs, EPGs, contracts).
• Proficient in campus switching (Catalyst/Nexus) and integrating wired/wireless access into ACI fabric.
• Familiarity with enterprise security and access control principles.
• Strong understanding of L2/L3 protocols, routing, and multicast within ACI fabrics.
• Ability to lead projects independently, work cross-functionally, and communicate clearly with technical and non-technical stakeholders.

Preferred: 

• Cisco certifications (e.g., CCNP, CCIE, Cisco Certified Specialist – ACI or SD-Access)
• Experience with automation via Python, Ansible, or Cisco APIs
• Familiarity with hybrid cloud or multi-site ACI environments

 In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.