Senior Network Engineer

Job Title:

Senior Network Engineer

Location:

Onsite, Miami Salary: $110K plus decent benefits

Job #: 7366

We’re seeking an onsite Network Engineer to own day-to-day network operations and improvement projects for a mid-sized organization running a predominantly Microsoft stack. You’ll be responsible for reliable connectivity across campuses/office locations, secure access to cloud services (Microsoft 365/Azure), and stable performance for business-critical applications.

• Operate, maintain, and improve the corporate LAN/WAN/Wi-Fi environment (switching, routing, VLANs, DHCP/DNS, QoS).

• Manage edge connectivity and security: firewalls, VPN (site-to-site and remote access), NAT, and network segmentation.

• Administer network services integrated with Microsoft infrastructure (Active Directory, Group Policy dependencies, DNS/DHCP, certificate services as relevant).

• Support Microsoft 365 connectivity and performance (Exchange Online, Teams, SharePoint) and ensure network readiness for collaboration/VoIP.

• Partner with systems administrators on hybrid connectivity patterns (Azure AD/Entra , Azure networking fundamentals, Express Route/VPN Gateway where applicable).

• Monitor, troubleshoot, and resolve incidents across network and related services; perform root-cause analysis and implement preventive fixes.

• Manage network documentation: diagrams, IP addressing plans, rack layouts, standard configs, runbooks, and change history.

• Implement and maintain monitoring/alerting (e.g., SNMP/telemetry, syslog, Net Flow), plus performance baselines and capacity planning.

• Own network change management: maintenance windows, risk assessment, rollback planning, and stakeholder communication.

• Coordinate vendor/ISP circuits, escalations, renewals, and support cases.

• Support endpoint/network access controls (802.1X/NAC), guest Wi-Fi, and secure wired/wireless onboarding.

• Participate in on-call rotation as needed for outages and maintenance.

• 3–7+ years of hands-on network engineering in a mid-sized enterprise environment.

• Strong fundamentals in routing/switching and troubleshooting (TCP/IP, ARP, STP, OSPF/BGP concepts, subnetting, packet capture).

• Experience administering and supporting:

  • Managed switches (Cisco/Aruba/Juniper/Fortinet, etc.)

  • Wireless (controller-based or cloud-managed)

  • Firewalls and VPNs

• Working knowledge of Microsoft-centric enterprise services and dependencies: AD-integrated DNS, DHCP, Windows authentication flows, Microsoft 365 network considerations.

• Experience with monitoring and troubleshooting tools (Wireshark, trace route/mtr, SNMP monitoring platforms, syslog).

• Strong documentation, communication, and customer-service mindset (you’ll be onsite and visible).

• Microsoft/Azure exposure: basic Azure networking (VNets, NSGs, routing, VPN Gateway), Entra .

• Familiarity with security frameworks/practices (least privilege, segmentation, MFA impacts on network auth, secure remote access).

• Experience with: SD-WAN, SASE, NAC/802.1X, VoIP/Teams Phone readiness, IDS/IPS, certificate-based auth.

• Scripting/automation (Power Shell preferred; Python welcome).

• Certifications a plus: CCNA/CCNP, Network+, Fortinet NSE, Aruba, Microsoft fundamentals (AZ-900), etc.

Not for you? Sherlock Talent offers a $1000 referral bonus for successful placements into this role. Include your name in the “Referral Source” field on the application.