Senior Network Engineer (Infrastructure & Cloud)

The role

The Senior Network Engineer will design, install, configure, and maintain secure network infrastructure across on-premises and cloud environments. This role supports day-to-day operations, advances security initiatives, and collaborates with global IT colleagues and business stakeholders.

What you will do

• Design, install, configure, test, document, and maintain secure network infrastructure
• Identify, diagnose, and resolve complex network, wireless, firewall, DNS, and connectivity issues
• Produce and maintain Microsoft Visio network diagrams and documentation
• Administer Nexus Dashboard, Catalyst Center, Infoblox, and other management platforms
• Maintain configuration records, inventories, circuit information, and vendor contacts
• Plan and execute upgrades with tested rollback procedures
• Develop and maintain policies, procedures, and training plans for network administration
• Ensure network hardware, software, firmware, and configurations are current and secure
• Monitor and test network performance and provide reports
• Coordinate with internal teams and external vendors to deliver projects and resolve incidents

Required qualifications

• Current Cisco certification at the CCNA level or a demonstrated track record of maintaining Cisco certifications at or above the CCNA level
• Bachelor's degree in Computer Science, Information Systems or related discipline
• 4-6 years relevant work experience
• Demonstrated knowledge of secure LAN/WAN, campus, data center, wireless, and cloud networking operations
• Hands-on experience designing, implementing, and supporting networking in both Microsoft Azure and Amazon Web Services (AWS)
• Hands-on experience with Cisco Nexus data center switching, Cisco Catalyst switching, Cisco Catalyst wireless, and Cisco Firepower firewalls
• Experience with network management and automation platforms, including Cisco Nexus Dashboard, Cisco Catalyst Center, and Infoblox
• Demonstrated skill designing and documenting logical and physical networks using Microsoft Visio
• Strong practical knowledge of Cisco enterprise networking platforms
• Proficiency with network protocols including Spanning Tree, DNS, DHCP, BGP, OSPF, HSRP, LACP, SNMP, NTP, IPsec VPN, and QoS
• Experience creating, reviewing, implementing, and troubleshooting firewall policies
• Ability to create and maintain accurate network topology, rack, connectivity, and as-built documentation using Microsoft Visio

Nice to have

• Master's degree
• Experience in a professional services environment
• CCNP
• Microsoft Azure and AWS certifications
• Palo Alto firewall experience
• Demonstrated strong knowledge with Microsoft Azure networking
• Demonstrated strong knowledge with Amazon Web Services networking
• Cisco Nexus data center switches and Nexus Dashboard
• Cisco Catalyst switches, Catalyst wireless infrastructure, and Catalyst Center
• Cisco Firepower firewalls

Benefits

• Medical, dental, and vision insurance
• 401(k) retirement plan with employer match
• Life and disability insurance
• Paid time off (vacation, sick leave, holidays)
• Paid parental leave
• Wellness programs and employee assistance resources
• Commuter benefits
• Skills development programs including technical training, presentation skills, internal seminars, and career mentoring

Before you apply

• Include current address, personal email and telephone number in resume
• Optional: submit a sample set of diagrams generated with Visio in the cover letter field

About the company

Charles River Associates is a leading global consulting firm that provides economic, financial, and business management expertise to major law firms, corporations and governments around the world.