Senior Network & Infrastructure Engineer

Job Description

Job Description

Greenwich Country Day School is an independent, co-educational day school with a current enrollment of over 1400 students in grades N-12, and a faculty and staff of over 350. The original Old Church Road campus is home to grades N-8. The High School, established in 2019, is located less than two miles away on Stanwich Road. Founded in 1926, Greenwich Country Day School is a family school where innovative teaching is encouraged as teachers model and foster a love of learning, challenge and inspire children toward academic excellence, and cultivate students’ interests and talents outside of the classroom. We value purposeful and personal learning in a joyful environment, with emphasis on the development of character, creativity, and a sense of personal value along with strong academic skills. GCDS is committed to graduating ethical, confident leaders who possess a strong sense of purpose.

GCDS is fortunate to have built a large endowment, which helps to fund competitive salaries and benefits, a robust professional development program, and reimbursement for graduate school tuition. GCDS offers a substantial need-based financial aid program to support students from a range of socio-economic backgrounds.

Greenwich Country Day School seeks to hire a Senior Network & Infrastructure Engineer to start in June 2026. This role will be responsible for the design, stability, security, and long-term evolution of the school’s core technology infrastructure. This role serves as the senior technical lead supporting servers, wired and wireless networks, backups, cybersecurity systems, and construction-related technology planning, while working closely with internal staff, vendors, and consultants.This position represents a strategic shift from external consultant management to internal ownership. It is hands-on but strategic, balancing daily operational reliability with long-term financial and lifecycle planning appropriate for an independent N–12 school environment.Key ResponsibilitiesStrategic Planning & Financial Management

• Capital Budgeting: Create, request, and purchase capital budgets for network and server infrastructure.
• Lifecycle Management: Develop and execute rotation plans for servers, switches, firewalls, network storage, and wireless access points to ensure performance and reliability.
• Vendor Management: Act as the senior technical liaison for network and infrastructure vendors; review proposals, ensure SLA compliance, and hold vendors accountable for deliverables.

Network & Infrastructure Operations

• Network Administration: Manage core network infrastructure, including routing, VLANs, and switching, specifically for an environment of 90+ Cisco switches and 266+ Access Points.
• Server Operations: Design, maintain, and document on-prem and cloud-based server environments, ensuring consistent patching and performance monitoring.
• Backup & Disaster Recovery: Oversee comprehensive backup strategies and business continuity planning to ensure data integrity.
• Domain Management of Windows and Google Work Environments. In coordination with the Network Administrator.
• Documentation: Create and maintain detailed network diagrams and system documentation to ensure institutional knowledge is retained internally.

Construction & Facilities Technology

• Design & Planning: Represent the Technology department at construction design meetings and renovation planning sessions.
• Implementation: Coordinate low-voltage designs, MDF/IDF planning, and infrastructure standards; review drawings and submittals to ensure technology readiness for new spaces.

Cybersecurity (Shared Ownership)

• Tool Management: Administer and tune cybersecurity tools, including firewalls, endpoint protection, SIEM, and web filtering.
• Incident Response: Coordinate response and remediation efforts for security incidents and support audits or cyber insurance compliance requirements.
• Monitoring: Review, assess, and triage network and security alerts in partnership with the Network Administrator.

Tier 3 Support & Leadership

• Escalated Support: Handle "elevated tickets" and chronic technical issues that require advanced troubleshooting, serving as the escalation point for the support team.
• Mentorship: Mentor and support the Network Administrator and technical support staff, fostering a collaborative team approach.
• Stakeholder Liaison: Partner with Facilities, Finance, and Administration on organizational planning.

Required Qualifications

• Experience: 8+ years of experience in network and systems engineering, with a proven track record of transitioning from operational maintenance to strategic infrastructure ownership.
• Scale & Scope: Demonstrated ability to manage and troubleshoot large-scale enterprise networks, specifically environments capable of supporting 90+ switches and 250+ Access Points.
• Strategic & Financial Acumen: Experience creating and managing capital budgets for IT infrastructure, including lifecycle rotation planning for servers, switches, and wireless hardware.
• Construction Experience: Previous experience representing Technology in construction design meetings and coordinating low-voltage designs.
• Operational Availability: Ability to provide support for critical issues with the flexibility to perform maintenance and upgrades outside of standard business hours to minimize downtime.
• Communication: Strong ability to communicate complex technical concepts to non-technical stakeholders and act as the primary liaison for external vendors.
• Problem Solving: Demonstrated capacity to maintain composure during critical outages ("doesn't panic") and solve unfamiliar technical challenges efficiently.

Technical Skills & Stack ProficiencyNetworking & Security

• Switching: Expert-level configuration and management of Cisco switching technology.
• Wireless: Advanced management of ExtremeCloud IQ wireless environments.
• CyberSecurity Training
• Firewall: Hands-on experience with Watchguard firewalls (upgrades, installation, management).

Systems & Servers

• Hardware: Extensive experience with Dell Server technology (specification, installation, maintenance).
• Windows Environment: Advanced proficiency with Windows Server, DNS, DHCP, and NPS.
• Identity: Management of Active Directory, including maintenance, upgrades, and Group Policy.
• Backup: Proficiency in managing legacy and modern backup solutions, specifically Backup Exec 25.x and LiveVault online backup systems.

Preferred Qualifications

• Experience in K–12 or higher education environments.
• Familiarity with Google Workspace and Microsoft 365 environments.
• Basic administration of Cisco Call Manager/Unity.

Interested candidates are invited to use the link provided to submit a cover letter and resume to Raquel Salcedo, Director of Recruiting & Talent.

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