Network Infrastructure Engineer: ACI, SDA & Security Expert

CrackaJack Digital Solutions LLC; Jackson (MS); On-site; USD 70,000 - 110,000; Full time

Job summary

CrackaJack Digital Solutions LLC in Jackson, MS is seeking a Network Infrastructure Engineer for an onsite role. You will design and administer Cisco ACI fabrics, implement SDA campus architectures, and support high-availability enterprise networks.

The position requires strong L2/L3 routing, Palo Alto firewall administration, Cisco ISE, and expertise with OpenShift integrations, Cilium/Isovalent, and network monitoring tools such as ThousandEyes.

Qualifications

• Experience designing and administering Cisco ACI fabrics.
• Knowledge of SDA campus architectures and multi-tenant segmentation.
• Strong Cisco ISE policy sets and NAC experience.
• Palo Alto firewall administration and security profiles knowledge.
• Proficient L2/L3 routing and switching for enterprise-scale infra.
• Ability to support high-availability environments.

Responsibilities

• Cisco ACI fabric design and administration (VRF, BD, EPG/ESG, L3Out).
• ACI integrations with OpenShift VMM and Cilium/Isovalent.
• Catalyst and SDA wired/wireless fabric deployment and support.
• Identity-driven access configuration using Cisco ISE (TACACS+, authz, device profiling).
• ThousandEyes monitoring, Cyber Vision integration, and DNA Spaces analytics.
• Palo Alto firewall configuration, policy development, and troubleshooting.
• Network documentation, lifecycle planning, and support of mission-critical services.

Skills

Cisco ACI

Nexus platforms

Multi-tenant segmentation

SDA campus architectures

Cisco ISE policy sets

NAC

Palo Alto firewall administration

L2/L3 routing & switching

High-availability infrastructure

Tools

OpenShift VMM

Cilium/Isovalent

ThousandEyes

Cyber Vision

DNA Spaces analytics

Cisco ISE TACACS+

Job description

CrackaJack Digital Solutions LLC in Jackson, MS is seeking a Network Infrastructure Engineer for an onsite role. You will design and administer Cisco ACI fabrics, implement SDA campus architectures, and support high-availability enterprise networks.

The position requires strong L2/L3 routing, Palo Alto firewall administration, Cisco ISE, and expertise with OpenShift integrations, Cilium/Isovalent, and network monitoring tools such as ThousandEyes.