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Systems Administrator

Robert HalfKent, WA🇺🇸United StatesPosted 2 Sept 2026

Why This Role Stands Out

This contract role offers a fantastic opportunity to significantly enhance your expertise in Active Directory security and hardening, particularly with ADCS and Kerberos, within a reputable manufacturing client. You'll thrive here if you possess deep, hands-on experience with these critical areas and enjoy project-based work focused on strengthening infrastructure. Apply now to leverage your skills and make a tangible impact on a key security initiative.

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Kent, WA, United States
Posted
Yesterday
Active DirectoryOnboardingPKI

Job Description

Description

Robert Half is seeking an experienced Systems Administrator to support a client in the manufacturing industry with a critical Active Directory hardening initiative. This role will be heavily focused on the administration, security, and hardening of the organization's on-premises Active Directory environment.

The ideal candidate will bring deep, hands-on Active Directory expertise, particularly with Active Directory Certificate Services (ADCS/PKI) and Kerberos configuration. This position will primarily support project-based Active Directory initiatives rather than general day-to-day systems administration.

Duration: 2-4-month contract; potential to extend

Location: Kent, WA - 100% Onsite

Schedule: Monday-Friday, Core Business Hours

Responsibilities
  • Support the administration, maintenance, and hardening of the on-premises Active Directory environment.
  • Execute Active Directory security and hardening initiatives to strengthen the organization's infrastructure.
  • Configure, administer, and troubleshoot Active Directory Certificate Services (ADCS) and PKI.
  • Configure and troubleshoot Kerberos authentication within the Active Directory environment.
  • Identify and remediate Active Directory security vulnerabilities and configuration issues.
  • Troubleshoot and resolve complex Active Directory-related issues and tickets.
  • Support upcoming projects and initiatives related to Active Directory hardening, authentication, and security.
  • Maintain and support the organization's Microsoft-based infrastructure.
  • Assist with Microsoft 365 administration and troubleshooting as needed.
  • Support Active Directory changes associated with employee onboarding, offboarding, and account modifications.
  • Partner with internal technical teams to ensure Active Directory configurations align with security and infrastructure best practices.


Requirements

  • Strong professional experience in Systems Administration with a significant focus on Active Directory.
  • Deep hands-on experience administering and hardening on-premises Active Directory environments.
  • Strong experience with Active Directory Certificate Services (ADCS) and Public Key Infrastructure (PKI).
  • Hands-on experience with Kerberos configuration, authentication, and troubleshooting.
  • Strong understanding of Active Directory security, authentication, permissions, Group Policy, and related infrastructure.
  • Experience troubleshooting complex Active Directory issues within a Microsoft environment.
  • Ability to independently support Active Directory projects and drive technical initiatives through completion.

Nice-to-Have Qualifications
  • Experience with Microsoft Entra ID.
  • Familiarity with Microsoft 365 Groups and hybrid Microsoft environments.
  • Experience supporting Active Directory security or hardening projects within enterprise environments.


Technology Doesn't Change the World, People Do.

Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use and Privacy Notice.

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