Network Infrastructure Engineer – Enterprise & Collaboration Systems

Description This role designs, supports, and optimizes enterprise network infrastructure supporting voice, data, wireless, and collaboration services across a global professional services environment. The position balances architecture, hands-on engineering, operational support, and resiliency planning to ensure reliable and secure network services. Responsibilities Diagnose and resolve network and infrastructure incidents , restoring services quickly while minimizing business impact Design, test, and support network components across multiple deployment phases, from planning through production Collaborate with vendors to ensure statements of work are executed accurately and implementations meet technical expectations Perform routine and emergency maintenance on enterprise networking equipment Contribute to network strategy initiatives , recommending solutions related to performance, scalability, and security Define, monitor, and maintain network performance KPIs , supporting capacity planning and infrastructure forecasting Participate in the design and sustainment of disaster recovery and business continuity environments to support minimal downtime objectives Take ownership of assigned network projects , following established work plans and meeting delivery milestones Install, configure, and troubleshoot Cisco-based network infrastructure within a global enterprise environment Analyze existing network architecture to identify efficiency improvements and ROI optimization opportunities Develop and maintain technical documentation , including detailed incident resolutions within the knowledge management system Support the creation and evolution of network standards and specifications aligned with firm-wide IT direction Partner with application, infrastructure, and security teams to resolve cross-domain technical issues Participate in the Network Operations on-call rotation , providing 24/7 global support coverage Requirements Education & Experience Four-year college degree preferred; equivalent professional experience considered Minimum five years of experience supporting enterprise networking within a global Cisco-based environment , including voice technologies Prior experience in legal IT or professional services environments preferred CCNA and/or CCNP certification , or equivalent demonstrated expertise Technical Expertise Demonstrated experience with routing and networking concepts , including BGP, EIGRP, QoS, SD-WAN, and TCP/IP Hands-on experience with Cisco switching platforms , including Nexus IOS and Catalyst 9400 / 9000 series Familiarity with Cisco SD-WAN , Cisco ISE , Azure cloud networking , Palo Alto firewalls , and Prisma Access preferred Exposure to Linux environments and Ansible-based network automation is a plus Proficiency with Windows operating systems and Microsoft Office tools Ability to evaluate and implement new technologies or process improvements to address complex technical challenges Communication & Professional Skills Strong ability to translate technical concepts for non-technical audiences Excellent written and verbal communication skills, including preparation of reports, procedures, and technical documentation Ability to select the appropriate communication method for varying stakeholders Comfortable presenting information and responding to questions from managers, clients, and cross-functional groups Demonstrated ability to analyze technical problems to ensure accurate and sustainable resolution Judgment, Focus & Execution Proven ability to operate in a fast-paced, evolving environment with strong attention to detail High degree of confidentiality and discretion Strong problem-solving skills with the ability to work effectively in low-standardization scenarios Ability to define priorities, manage multiple concurrent demands , and meet deadlines Commitment to delivering exceptional client service for both internal and external stakeholders