Network Infrastructure & Automation Engineer

Calance; San Antonio (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Calance is seeking a Network Infrastructure & Automation Engineer to design, implement, and optimize enterprise network services across on‑premises and cloud environments. You will manage routing, switching, wireless, and security technologies, administer Cisco ISE, and design AWS networking components.

The role emphasizes automation with Python, IaC, and GitHub, collaborating with cross‑functional teams to ensure scalable, reliable networks.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent experience.
• Strong foundation in network engineering with Cisco CCNA certification required.
• Cisco CCNP certification preferred.
• Experience supporting large-scale enterprise network environments.

Responsibilities

• Design, implement, and support enterprise network infrastructure solutions across on-premises and cloud environments.
• Manage and optimize routing, switching, wireless, and network security technologies.
• Administer and support Cisco Identity Services Engine (ISE) for network access control and policy management.
• Design and maintain AWS networking components, including VPCs, Transit Gateways, Direct Connect, VPNs, routing, and security controls.
• Support and manage DDI (DNS, DHCP, and IPAM) environments with a focus on BlueCat technologies.
• Develop and maintain network automation solutions using Python, APIs, and Infrastructure as Code (IaC) methodologies.
• Build and maintain automation workflows, source code repositories, and CI/CD processes using GitHub.
• Collaborate with cross-functional infrastructure, cloud, and security teams to deliver scalable and secure network solutions.
• Troubleshoot complex network issues and provide root cause analysis for critical incidents.
• Develop technical documentation, network diagrams, operational procedures, and automation standards.

Skills

Cisco Routing & Switching

Cisco ISE

AWS Networking

DNS / DHCP / IPAM

BlueCat DDI

Python automation

GitHub

Troubleshooting

Education

Bachelor’s degree in CS/IT/Engineering or equivalent

Tools

Cisco ISE

AWS Networking Services

BlueCat DDI

GitHub

Python scripting

Job description

Network Infrastructure & Automation Engineer

Position Summary We are seeking a highly skilled Network Infrastructure & Automation Engineer with a strong foundation in enterprise networking and a passion for automation and cloud technologies. The ideal candidate will possess deep technical expertise across traditional and modern network environments, including Cisco networking, network security, cloud networking, IP address management, and infrastructure automation. This role will be responsible for designing, implementing, supporting, and optimizing network services while driving automation initiatives that improve operational efficiency, scalability, and reliability.

Key Responsibilities

• Design, implement, and support enterprise network infrastructure solutions across on-premises and cloud environments.
• Manage and optimize routing, switching, wireless, and network security technologies.
• Administer and support Cisco Identity Services Engine (ISE) for network access control and policy management.
• Design and maintain AWS networking components, including VPCs, Transit Gateways, Direct Connect, VPNs, routing, and security controls.
• Support and manage DDI (DNS, DHCP, and IPAM) environments with a focus on BlueCat technologies.
• Develop and maintain network automation solutions using Python, APIs, and Infrastructure as Code (IaC) methodologies.
• Build and maintain automation workflows, source code repositories, and CI/CD processes using GitHub.
• Collaborate with cross-functional infrastructure, cloud, and security teams to deliver scalable and secure network solutions.
• Troubleshoot complex network issues and provide root cause analysis for critical incidents.
• Develop technical documentation, network diagrams, operational procedures, and automation standards.

Required Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent experience.
• Strong foundation in network engineering with Cisco CCNA certification required.
• Cisco CCNP certification preferred.
• Experience supporting large-scale enterprise network environments.

Expertise with

• oCisco Routing and Switching
• oCisco ISE
• oAWS Networking Services
• oDNS, DHCP, and IPAM technologies
• oBlueCat DDI platforms
• Proficiency in Python scripting for automation and operational efficiency.
• Experience with GitHub for version control and collaborative development.
• Strong troubleshooting, analytical, and problem-solving skills