Lead Engineer - Network & Security

Presidio, Where Teamwork and Innovation Shape the Future

At Presidio, we're at the forefront of a global technology revolution, transforming industries through cutting-edge digital solutions and next-generation AI. We empower businesses - and their internal customers - to achieve more through innovation, automation, and intelligent insights.

The Role

• Design, configure, implement, test, and support enterprise routing, switching, software-defined networking, and network security solutions
• Participate in customer discovery sessions and technical workshops to document requirements, dependencies, constraints, and success criteria
• Develop and maintain technical designs, implementation procedures, migration plans, test plans, rollback procedures, and as-built documentation
• Build and support resilient networks across campus, data center, lab, branch, cloud-connected, and hybrid environments
• Configure and troubleshoot routing protocols, VLANs, network segmentation, redundancy, high availability, quality of service, and common network services
• Implement and support software-defined networking and network virtualization solutions under established architecture and design standards
• Configure and support network security controls, including firewalls, secure remote access, segmentation, access policies, and secure connectivity between environments
• Perform advanced troubleshooting, collect and analyze diagnostic information, identify root causes, and coordinate resolution with internal teams and vendors
• Plan and execute approved lifecycle activities, including software upgrades, firmware upgrades, hardware refreshes, configuration updates, and post-change validation
• Support Presidio lab network and security infrastructure used for engineering, demonstrations, proofs of concept, validation, training, and customer-facing activities
• Maintain lab configurations, diagrams, inventories, access records, standards, and operational documentation to promote repeatability and reduce configuration drift
• Serve as a technical point of contact for assigned projects and workstreams, providing clear status updates, technical recommendations, and escalation of risks or blockers
• Coordinate implementation activities with customers, project managers, vendors, facilities teams, remote hands, and other engineering disciplines
• Mentor junior and mid-level engineers through technical guidance, peer reviews, troubleshooting support, lab exercises, and knowledge-sharing sessions
• Review configurations and engineering deliverables for technical accuracy, security, consistency, and operational readiness
• Contribute to technical standards, runbooks, reference designs, automation practices, and reusable implementation methods

Technology/Area of Specialization

• Strong knowledge of enterprise routing and switching, including dynamic routing protocols, Layer 2 and Layer 3 design, redundancy, segmentation, quality of service, and network services
• Working knowledge of software-defined networking, policy-based networking, network virtualization, automation, and centralized management platforms
• Practical knowledge of network security technologies, including firewalls, VPNs, secure access, segmentation, access control, policy enforcement, and security monitoring integrations
• Familiarity with network automation, APIs, configuration management, telemetry, monitoring, and operational analytics
• Understanding of infrastructure dependencies such as DNS, DHCP, IP address management, identity services, virtualization, cloud connectivity, and data center facilities
• Experience with Cisco ACI and NDFC is highly desired

Basic Knowledge, Skills, and Abilities

• Strong troubleshooting skills with the ability to analyze issues across network, security, virtualization, cloud, and application dependencies
• Ability to develop sound technical solutions within established architecture, security, operational, and project requirements
• Strong written and verbal communication skills with the ability to explain technical topics to customers, project teams, and internal stakeholders
• Solid project execution skills, including task planning, effort estimation, dependency tracking, risk identification, and timely completion of assigned deliverables
• Ability to lead defined technical workstreams while collaborating with senior architects and engineering leadership on complex decisions
• Ability to facilitate technical discussions, implementation planning, peer reviews, and operational handoffs
• Collaborative mindset with a willingness to mentor less-experienced engineers and share practical knowledge
• Attention to detail and consistent documentation practices across designs, configurations, test results, implementation records, and support procedures

Required Skills

• Bachelor's degree in computer science, Information Technology, Engineering, or a related field, or equivalent practical experience
• Typically, 5-7 years of progressive experience implementing and supporting enterprise network and security infrastructure
• Hands-on experience with enterprise routing and switching, including dynamic routing, segmentation, resiliency, and troubleshooting
• Experience contributing to the design and implementation of enterprise networks in customer-facing, consulting, professional services, managed services, or large enterprise environments
• Working experience with software-defined networking or network virtualization technologies
• Practical experience configuring or supporting enterprise network security platforms and secure connectivity solutions
• Experience creating technical documentation such as network diagrams, implementation procedures, migration plans, test plans, and as-built records
• Experience coordinating technical activities with customers, project teams, vendors, and internal stakeholders
• Demonstrated ability to provide technical guidance or mentoring to junior engineers
• Re