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Action1

Automates device patching and vulnerability fixes

Senior IT Engineer

System AdministrationPosted on Nov 12
Full-timeRemote in USANo salary listed

About the Job

Requirements

  • At least 5 years of experience in systems administration, IT engineering, infrastructure, or a related role, including ownership of complex technical work.
  • Strong hands-on experience with Microsoft 365, Entra ID, Intune, and Windows endpoints, with sound networking, DNS, and VPN fundamentals.
  • Experience in a security operations center, either in-house or with a managed security provider.
  • Experience building and maintaining IT automation with PowerShell, Python, or Ansible, including API integrations.
  • Experience using Git, branching, and pull requests to maintain scripts and automation.
  • Hands-on security operations experience, including alert triage, incident investigation, and response, using Microsoft Defender or comparable tools.
  • Experience implementing security controls and supporting audits or evidence collection, with working knowledge of ISO 27001, SOC 2, or a comparable framework.
  • Strong analytical and critical-thinking skills to gather evidence, test assumptions, identify root causes, weigh security and operational trade-offs, and verify results.
  • Ability to balance employee support, incidents, and projects; communicate clearly; document decisions; and recognize when to escalate or seek approval.

Responsibilities

  • Manage Microsoft 365, Entra ID, Intune, and business applications; provide U.S.-hours support and coordinate handoffs with the EU-based Systems Administrator.
  • Resolve device compliance issues, restore employee access, and strengthen identity and endpoint security through hardening, access controls, and vulnerability remediation.
  • Own infrastructure and security projects, turning recurring problems into lasting improvements.
  • Build reliable automation and API integrations using Git and approved AI tools, with testing and independent validation.
  • Triage security alerts, investigate and document incidents, and coordinate response and recovery with the Head of IT.
  • Assess new and existing vendors and technology changes, review access requirements, and recommend safeguards for the Head of IT’s approval.
  • Implement practical compliance controls, maintain audit evidence in Vanta, and resolve failed checks and technical findings.
  • Maintain incident playbooks, test recovery procedures, and share knowledge across the IT team.

Desired Qualifications

  • Infrastructure-as-code experience with Terraform.
  • Experience with Vanta or other GRC platforms, Microsoft Purview, and Datadog or Arctic Wolf, or other SIEM tools.
  • AWS experience, particularly with VPN or backup services.
  • Familiarity with GovRAMP or FedRAMP (NIST SP 800-53), CIS Benchmarks, and technical data protection requirements.

About the Company

Action1

Automates device patching and vulnerability fixes

Action1 develops cloud software that helps IT teams manage device updates and remediate vulnerabilities across distributed organisations. Its platform uses endpoint agents and a browser console to identify missing patches, deploy operating-system and third-party application updates, and report deployment status. Administrators also use it for software deployment, inventory, scripting and remote desktop access, serving both internal IT departments and managed service providers. The business earns subscription revenue through per-endpoint licences, with hosted infrastructure replacing the need for customers to maintain their own patch-management servers. Founded in 2018, Action1 is headquartered in Houston, Texas.

Company size
51-200
Company stage
Not listed
Total funding
Not listed
Headquarters
Houston, TX
Founded
2018

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