Network Infrastructure Engineer

CrackaJack Digital Solutions LLC; Jackson (MS); On-site; USD 70,000 - 90,000; Full time

Job summary

CrackaJack Digital Solutions LLC is seeking a Network Infrastructure Engineer to be based onsite in Jackson, MS. The role involves designing and administering Cisco ACI fabric, configuring Palo Alto firewalls, and ensuring high-availability infrastructure.

Ideal candidates will have a strong understanding of enterprise-scale systems, Cisco ISE, and a solid foundation in Layer 2 and Layer 3 routing and switching.

Certifications such as CCNA and CCNP are highly recommended.

Qualifications

• Experience with Cisco ACI fabric design and administration.
• Knowledge of ACI integrations with OpenShift VMM and Cilium.
• Ability to configure identity-driven access using Cisco ISE.

Responsibilities

• Design and administer Cisco ACI fabric.
• Configure Palo Alto next-generation firewall.
• Monitor network performance and support mission-critical services.

Skills

Cisco ACI

Nexus platforms

Palo Alto firewall administration

Strong L2/L3 routing and switching skills

Ability to support high-availability, enterprise-scale infrastructure

Education

CCNA

CCNP Data Center

CCNP Enterprise

Cisco Specialist – ACI, SDA, or ISE

PCNSA (Palo Alto)

PCNSE (Palo Alto)

Training in ThousandEyes or Cyber Vision

Job description

Network Infrastructure Engineer - ONSITE

Location: Jackson, MS

Major 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+, authentication/authorization, device profiling).
• ThousandEyes monitoring, Cyber Vision integration, and DNA Spaces analytics.
• Palo Alto next-generation firewall configuration, policy development, and troubleshooting.
• Network documentation, lifecycle planning, and support of mission-critical services.

Required Knowledge/Skills

• Cisco ACI, Nexus platforms, multi-tenant segmentation.
• SDA campus architectures.
• Cisco ISE policy sets and NAC.
• Palo Alto firewall administration and security profiles.
• Strong L2/L3 routing and switching skills.
• Ability to support high-availability, enterprise-scale infrastructure.

Recommended Certifications

• CCNA
• CCNP Data Center
• CCNP Enterprise
• Cisco Specialist – ACI, SDA, or ISE
• PCNSA (Palo Alto)
• PCNSE (Palo Alto)
• ThousandEyes, Cyber Vision, or related platform training