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Sr Systems Administrator

Robert Half
Chicago, Illinois, US$60 – $69Posted March 9, 2026

Salary Context

This role offers $60–$69. The median for Senior-level security roles is $120k–$168k (based on 107 listings). 100% below median.

Job Description

We are looking for an experienced Senior Systems Administrator to join our team on a long-term contract basis in Chicago, Illinois. In this role, you will be responsible for managing and optimizing enterprise-level systems and technologies while ensuring seamless IT operations. The ideal candidate will possess advanced certifications, strong problem-solving capabilities, and the ability to work autonomously while collaborating effectively with teams.Responsibilities:

  • Manage and maintain enterprise systems, including Active Directory, Windows Server, and Microsoft 365 environments.
  • Resolve service tickets efficiently and proactively address system issues to ensure business continuity.
  • Provide expert-level insights and recommendations to IT leadership at both enterprise and business unit levels.
  • Collaborate with team members to address workloads and assist with additional duties when needed.
  • Implement and oversee security measures, leveraging Azure and Microsoft technologies.
  • Conduct periodic system upgrades and ensure compliance with best practices for hybrid server environments.
  • Take initiative to solve complex issues independently, utilizing available resources effectively.
  • Maintain high standards in communication and teamwork to foster a productive and engaged work environment.
  • Stay updated on industry trends and certifications to provide cutting-edge solutions.
  • Travel occasionally for planning meetings or other required engagements.

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