Network Engineer

AlfaTech

. Oversee network and server administration, including firewalls, routers, switches, network protocols, and server maintenance .

Posted 9/16/2026full-timeSan Jose • California • United StatesMid-LevelSenior💰 $120,000 - $130,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates advanced knowledge in network and server administration, including Windows 2022 server environments, Azure Active Directory, and security frameworks. Proficient in maintaining network efficiency and security through firewalls, routing protocols, and backup solutions.

Highest-signal resume keywords

Windows 2022 Server AdministrationAzure Active Directory ManagementFortinet Firewall ExpertiseVeeam Backup Software ProficiencyTCP/IP, DHCP, DNS Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network AdministrationServer MaintenancePenetration TestingSystem TroubleshootingActive Directory ConfigurationSD-WAN ImplementationLAN/WAN Topology ManagementVirtual Environment ManagementSecurity Software InstallationBackup System Management

Soft Skills

Mentoring Helpdesk StaffFair Treatment of Employees

Tools & Technologies

FirewallsRoutersSwitchesVPN GatewaysIntrusion Detection SystemsCloud BackupsSAN/NAS InfrastructureOffice 365ESX Virtual EnvironmentsNetwork Configuration Documentation

Certifications & Qualifications

BSc Degree in Computer ScienceCisco CCIE Certification

Industry Keywords

NIST Cybersecurity FrameworkRisk Management MethodologiesNetwork ProtocolsInformation Technology Security TrendsCorporate Backup Systems

Tech Stack

Tools & technologies

AzureCloudCyber SecurityDNSFirewallsSwitchingTCP/IP

About the role

Key responsibilities & impact

Oversee network and server administration, including firewalls, routers, switches, network protocols, and server maintenance
Maintain secure servers, applications, databases, and local and cloud backups
Design and implement new network solutions and improve existing network efficiency
Install, configure, and support routers, access and core switches, servers, Active Directory, DNS, and DHCP
Maintain firewalls, routing, and switching for network efficiency and security
Monitor performance, troubleshoot issues, conduct penetration testing, and investigate outages
Schedule upgrades and maintain file servers, VPN gateways, and intrusion detection systems
Install and maintain security updates in compliance with industry best practices
Create network operations reports and maintain network configuration documentation
Administer Windows servers, including system and application software and patches
Support SAN, NAS, and virtual server infrastructure
Administer Azure, on-premises Active Directory, and Office 365 systems
Monitor CPU usage, disk usage, response times, and other system resources
Install, configure, and maintain server security software such as antivirus programs
Secure networks through firewalls, password protection, and other controls
Inspect hardware for vulnerable access points
Automate systems administration tasks where possible
Maintain server and infrastructure documentation and logs
Maintain corporate backup systems for all servers
Keep current with information technology security trends
Provide helpdesk support and mentor helpdesk staff
Treat employees fairly and respectfully
Report to the Director of Corporate IT
Perform other duties assigned by the Director of Corporate IT

Requirements

What you’ll need

Experience maintaining a Windows 2022 server environment
Advanced knowledge of computer systems
Advanced knowledge of Azure AD and on-premises AD environments
Advanced knowledge of ESX virtual environments
Advanced knowledge of Fortinet firewall environments
Advanced knowledge of SD-WAN
Advanced knowledge of TCP/IP, DHCP, DNS, and routing protocols
Advanced knowledge of LAN/WAN topologies
Strong Veeam backup software experience
Proven experience as a computer security specialist
Familiarity with security frameworks such as the NIST Cybersecurity Framework and risk management methodologies
BSc degree in Computer Science, Engineering, or related field required
Cisco CCIE certifications are a plus
Ability to work varying hours from 8am–5pm, Monday through Friday

Benefits

Comp & perks

Hybrid work arrangement
Remote work acceptable due to the Covid-19 pandemic
Webcam-supported collaboration using Zoom and/or Microsoft Teams
Inclusive workplace and equal-opportunity employment
Fair consideration of qualified applicants with arrest and conviction records