Senior Infrastructure Engineer

• Design, implement, administer, and support enterprise LAN, WAN, SD-WAN, and wireless network infrastructure.
• Configure and troubleshoot routers, switches, wireless access points, firewalls, and network appliances.
• Support routing, switching, VLANs, network segmentation, NAT, DNS, DHCP, QoS, and TCP/IP services.
• Manage site-to-site VPNs, remote-access VPNs, internet connectivity, and hybrid cloud networking.
• Maintain resilient and redundant connectivity across office, data center, and cloud environments.
• Coordinate with internet service providers, telecommunications carriers, and third-party vendors.
• Lead network deployments for office openings, relocations, expansions, and infrastructure refreshes.
• Maintain network diagrams, IP addressing documentation, firewall standards, and configuration records.

• Administer enterprise firewalls, VPN configurations, security policies, certificates, and high-availability solutions.
• Implement secure network segmentation across users, servers, management networks, and business systems.
• Review and maintain firewall rules to ensure appropriate access controls.
• Partner with Information Security to implement network security standards and remediate vulnerabilities.
• Support secure internet access, remote connectivity, and zero-trust networking initiatives.
• Maintain network appliance configuration backups and validate recovery procedures.
• Monitor network logs and alerts to identify performance issues, anomalies, and potential security threats.
• Ensure network changes comply with established security and change management processes.

• Design and support connectivity between office locations, data centers, Microsoft Azure, and third-party environments.
• Support Azure networking components including virtual networks, subnets, network security groups, VPN gateways, DNS, routing, private endpoints, and VNet peering.
• Troubleshoot connectivity between cloud-hosted and on-premises resources.
• Maintain secure routing and segmentation across hybrid environments.
• Support Azure infrastructure and networking projects.
• Provide support for AWS connectivity and integrations as required.

• Administer and support Windows Server environments and supporting infrastructure services.
• Manage Active Directory, Group Policy, DNS, DHCP, certificate services, and identity-related technologies.
• Troubleshoot authentication, access, name resolution, and server connectivity issues.
• Support virtualization platforms, server operating systems, storage infrastructure, and monitoring tools.
• Maintain secure administrative access to infrastructure systems and platforms.
• Assist with server lifecycle management, upgrades, migrations, patching, and system refresh initiatives.
• Coordinate support activities with vendors, managed service providers, and technology partners.

• Support Microsoft Entra ID, hybrid identity environments, directory synchronization, and authentication services.
• Troubleshoot identity, access, and authentication-related issues.
• Manage role-based access, service accounts, group memberships, and enterprise application integrations.
• Support privileged access management and identity security initiatives.
• Maintain technical documentation related to identity architecture and authentication processes.

• Provide advanced support for Microsoft 365 services and related infrastructure integrations.
• Troubleshoot complex Exchange Online, Microsoft Teams, SharePoint Online, OneDrive, and authentication issues.
• Support mail flow, DNS records, certificate management, federation services, and connectivity requirements.
• Collaborate with endpoint and service delivery teams to resolve complex Microsoft 365 incidents.
• Support Microsoft 365 enhancements, migrations, and platform improvements as needed.

• Serve as the primary Level 3 escalation resource for complex network and infrastructure issues.
• Lead technical response efforts during high-impact outages and critical incidents.
• Perform root cause analysis and implement long-term corrective actions.
• Coordinate with service delivery teams, information security, vendors, carriers, and business stakeholders during major incidents.
• Communicate technical status updates, risks, and business impacts to leadership and stakeholders.
• Develop knowledge articles and troubleshooting procedures to improve operational support capabilities.
• Participate in on-call and escalation rotations as required.

• Define and maintain infrastructure and network engineering standards.
• Create and maintain technical documentation, configuration standards, network diagrams, operating procedures, and disaster recovery runbooks.
• Establish standards for naming conventions, network addressing, segmentation, monitoring, and configuration management.
• Ensure infrastructure changes follow approved change management processes.
• Maintain documentation required for operational support, audits, compliance, and disaster recovery planning.
• Evaluate technical solutions for security, scalability, resilience, cost-effectiveness, and operational supportability.
• Mentor junior engineers and technical support staff on networking and infrastructure best practices.

• Bachelor’s degree in Information Technology, Computer Science, Network Engineering, or a related field, or equivalent combination of education and experience.
• Five or more years of progressive experience in network engineering, infrastructure engineering, or related technical roles.
• Strong hands-on experience supporting enterprise multi-site network environments.
• Advanced knowledge of:
  • TCP/IP networking and subnetting
  • Routing and switching technologies
  • VLANs and network segmentation
  • Enterprise firewall administration
  • Site-to-site and remote-access VPNs
  • Wireless networking technologies
  • DNS and DHCP services
  • NAT and access control policies
  • Network monitoring and packet analysis tools
• Experience troubleshooting complex infrastructure and network incidents.
• Experience supporting Windows Server, Active Directory, Group Policy, and core infrastructure services.
• Working knowledge of Microsoft Entra ID and Microsoft 365 environments.
• Experience supporting Azure networking and hybrid cloud connectivity.
• Experience working with internet service providers, telecommunications carriers, vendors, and managed service providers.
• Experience developing network diagrams, technical standards, implementation plans, and recovery documentation.
• Proven experience leading infrastructure projects and implementing changes within production environments.
• Strong analytical, troubleshooting, organizational, and problem-solving skills.
• Excellent written and verbal communication skills.

• CCNA, CCNP, or equivalent networking certification.
• Microsoft Azure networking or infrastructure certification.
• Experience with Fortinet, Ubiquiti/UniFi, Meraki, or similar enterprise networking platforms.
• Experience with Zscaler, Secure Access Service Edge (SASE), or zero-trust networking solutions.
• Experience supporting infrastructure within regulated, financial services, or insurance environments.
• Experience leading office buildouts, network refresh initiatives, firewall migrations, and multi-site connectivity projects.

Compensation and Benefits:

Base salary range for this position is $125,000–$165,000 plus eligibility for a performance-based annual bonus. Actual compensation will be based on experience, education, and geographic location. We offer a competitive benefits package, including: 401(k) with company match, Paid Time Off, Sick Leave, Medical, Health Reimbursement Arrangement (HRA), Telemedicine, Wellness Program, Employee Assistance Program (EAP), Dental, Vision, Accident & Critical Illness Insurance, Flexible Spending Account (FSA), Dependent Care FSA, Group and Voluntary Life Insurance, Short- and Long-Term Disability, Pet Insurance, Transit and Parking benefits.