Unknown Company

System Engineer

dallas, tx • Posted 3 days ago
Onsite Full Time Engineering

Overview

Job Title: Systems & Security Engineer

Duration: Direct hire

Our client is hiring a Systems & Security Engineer to help support and secure their critical infrastructure including networking, virtualization, cybersecurity, systems administration, and hands-on escalation support. The ideal candidate is technically sharp, operationally reliable, and security-minded professional who enjoys variety, thrives under responsibility, and sees mentorship and collaboration as part of the job.

Responsibilities

  • Oversee and support the Hyper-V datacenter environment, including ERP-connected SQL workloads, backup solutions, NetApp storage, and physical host systems.
  • Configure and manage networking infrastructure such as Layer 2 switches, VLANs, trunking, cabling, and edge devices (Cisco, Meraki, UniFi).
  • Administer and monitor firewalls, site-to-site VPNs, routers, and user access technologies to ensure reliable connectivity and security.
  • Drive security operations by managing vulnerability scans, patching, system hardening, endpoint protection, and perimeter defense monitoring.
  • Investigate, respond to, and remediate security alerts or user-reported incidents, including after-hours resolution when necessary.
  • Maintain and enforce identity and access management policies across Office 365 tenants, Active Directory, and collaboration platforms.
  • Serve as an escalation point for the Helpdesk team, providing coverage during high demand or staff absences.
  • Develop, document, and uphold standard operating procedures and technical guidelines for systems and security operations.
  • Assess, test, and deploy new tools, third-party services, and infrastructure enhancements in partnership with the IT team.
  • Collaborate with all internal stakeholders — from staff to executives — to resolve technical issues and gather requirements.
  • Mentor Helpdesk and junior IT staff, fostering a collaborative and solutions-oriented culture within the team.
  • Participate in the on-call rotation, providing backup coverage and addressing urgent security or infrastructure issues as required.

Required Skills & Qualifications

  • 3–5 years of experience across systems, security, and networking functions
  • Hyper-V environments, server/storage management, and backup solutions
  • Cisco-based Layer 2 networking (VLANs, trunking, switch configs, cabling)
  • Firewalls, VPNs, conditional access, MFA, and endpoint protection
  • Microsoft 365 administration and multi-tenant support
  • A strong record of independent troubleshooting and responsible change management
  • Professionalism and communication skills suited to C-level and frontline staff alike
  • A team-first, initiative-driven work style — able to execute without micromanagement

Preferred Skills & Qualifications

  • PowerShell scripting or automation experience
  • Exposure to user security training or awareness programs
  • Familiarity with CIS/NIST-aligned best practices and hardening standards
  • Previous experience in smaller teams with wide access across the tech stack

Seniority level

  • Associate

Employment type

  • Full-time

Job function

  • Information Technology

Industries

  • IT Services and IT Consulting
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