System and Network AdministratorTotal Mortgage Services LLC • Milford, Delaware, United States
System and Network Administrator
Total Mortgage Services LLC
- Milford, Delaware, United States
- Milford, Delaware, United States
À propos
System & Network Administrator
to support and manage our hybrid IT environment across on‑premises infrastructure and cloud platforms. This role is responsible for maintaining reliable, secure, and efficient systems, with a strong emphasis on
Ubiquiti UniFi networking, virtualization platforms, Windows/Linux systems, and Microsoft 365 / Entra ID / Azure .
You will play a critical role in both day‑to‑day operations and long‑term infrastructure improvements, working closely with internal teams and external vendors.
Key Responsibilities Infrastructure & Systems Administration
Manage and maintain
Windows Server and Linux systems , including patching, performance tuning, and troubleshooting
Administer
virtual environments
(VMware, Hyper‑V, or similar), including provisioning, monitoring, and optimization
Perform
user and group management , permissions administration, and
Group Policy
configuration
Install, configure, and maintain file shares, multi‑user applications, and other networked resources
Network Administration (UniFi Focus)
Design, configure, and manage
Ubiquiti UniFi network infrastructure , including:
Gateways, switches, and wireless access points
VLANs, VPNs, and firewall rules
Monitor network performance, availability, and security
Troubleshoot connectivity issues across LAN/WAN environments
Maintain routers, switches, firewalls, access points, printers, and VoIP systems
Cloud & Identity (Microsoft 365 / Azure / Entra)
Administer
Microsoft 365 services
(Exchange Online, SharePoint, Teams)
Manage
Entra ID (Azure AD)
including identity lifecycle, Conditional Access, and MFA
Support
Azure infrastructure
and hybrid integrations
Implement and maintain
security controls
including access policies and device compliance
Security, Compliance & Cybersecurity Auditing
Perform and support
cybersecurity and compliance audits
across systems, networks, and cloud platforms
Conduct and document
disaster recovery (DR) planning and testing , including backup validation and recovery exercises
Assist with or coordinate
penetration testing and vulnerability assessments , ensuring timely remediation
Monitor systems for adherence to
security policies, standards, and regulatory requirements
Participate in
risk assessments
and develop mitigation strategies
Maintain audit documentation and provide evidence for internal/external reviews
Support and improve
security posture , identifying gaps and implementing corrective actions
Assist in responding to
security incidents , including account compromise or network intrusion
Support & Operations
Provide
Tier 2/3 technical support
in coordination with helpdesk teams
Troubleshoot complex issues across systems, networks, and cloud environments
Partner with vendors for installations, upgrades, and escalations
Create and maintain documentation including:
Network diagrams and configurations
System architecture and standard operating procedures
Assist in infrastructure design, improvements, and scalability planning
Research and recommend new technologies, tools, and best practices
Required Qualifications
3+ years of experience in
system and network administration
Hands‑on experience with
Ubiquiti UniFi networking solutions
Strong knowledge of:
Windows Server environments
Linux system administration
Virtualization platforms
(Xen, Hyper‑V, or similar)
Experience managing
Microsoft 365 and Entra ID (Azure AD)
Solid understanding of:
Networking fundamentals (DNS, DHCP, VLANs, VPNs, routing)
Security concepts and access control models
Preferred Qualifications
Experience with
Microsoft Azure (IaaS/PaaS)
Familiarity with
PowerShell, Bash, or other scripting/automation tools
Experience with
backup and disaster recovery solutions
Knowledge of
endpoint management (Intune or similar)
Exposure to compliance frameworks such as
SOC 2, NIST, or CIS benchmarks
Relevant certifications (Microsoft, CompTIA, or networking certifications)
Key Skills
Strong troubleshooting and analytical thinking skills
Excellent documentation and organizational abilities
Ability to manage multiple priorities in a fast‑paced environment
Clear communication with both technical and non‑technical stakeholders
Hours for position M-F 9am-5pm
This position may require frequent additional hours, at times on a daily basis; must be available to work additional hours on short notice as determined by management to meet customer service requirements.
Conclusion This job description is intended to convey information essential to understanding the scope of the job and the general nature and level of work performed by job holders within this job. But, this job description is not intended to be an exhaustive list of qualifications, skills, efforts, duties, responsibilities or working conditions associated with the position.
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Compétences linguistiques
- English
Avis aux utilisateurs
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