About the Role

Robert Half is excited to present an exceptional opportunity for a skilled Systems Administrator to join a dynamic team in St. Louis, Missouri. As a premier staffing and consulting firm, Robert Half connects top talent with innovative organizations seeking to optimize their IT infrastructure. This full-time position offers the chance to take ownership of critical systems, drive technological advancements, and collaborate in a fast-paced, supportive environment. If you are a proactive problem-solver with a passion for server management, network administration, and cloud technologies, this Systems Administrator job in St. Louis, MO is your next career milestone.

In this role, you will maintain, support, and enhance the organization's IT backbone, ensuring seamless operations across Windows, Linux, and cloud platforms like Microsoft 365, Azure, and AWS. You'll troubleshoot complex issues, implement robust security measures, and contribute to high-impact IT projects. Robert Half values professionals who thrive on ownership, technical challenges, and cross-functional teamwork. Join us to leverage your expertise in a role that combines hands-on technical work with strategic contributions, all while advancing your career in the heart of the Midwest.

Key Responsibilities

• Manage and Monitor IT Infrastructure: Oversee servers, network equipment, and core systems to ensure optimal performance and uptime.
• System Maintenance and Patching: Execute routine updates, patches, and maintenance tasks to keep systems secure and efficient.
• Administer Operating Environments: Handle Windows and Linux systems, managing user accounts, permissions, group policies, and access controls.
• Cloud Platform Support: Provide administration and support for Microsoft 365, Azure, AWS, including configuration, migration, and optimization.
• Troubleshooting Expertise: Diagnose and resolve hardware, software, and network problems swiftly to minimize downtime.
• Security Implementation: Enforce best practices for backups, disaster recovery planning, intrusion detection, and compliance monitoring.
• IT Project Collaboration: Participate in upgrades, new deployments, system migrations, and infrastructure enhancements.
• Advanced Technical Support: Deliver Tier 2/3 support to end-users, resolving escalated issues with clear communication.

Required Qualifications

To excel as a Systems Administrator at this Robert Half placement, candidates should bring 3+ years of hands-on experience in IT infrastructure management. Key qualifications include proficiency in Windows Server and Linux administration, with demonstrated skills in user management, Active Directory, and scripting (PowerShell, Bash). Experience with cloud services—particularly Microsoft Azure, AWS, or Microsoft 365—is essential, alongside a track record in network troubleshooting, virtualization (VMware/Hyper-V), and cybersecurity protocols.

We're seeking individuals with strong analytical skills, the ability to prioritize in dynamic settings, and a commitment to best practices like regular backups and disaster recovery testing. Certifications such as MCSA, RHCSA, CompTIA Security+, or AWS Certified SysOps Administrator will set you apart. Soft skills matter too: excellent problem-solving, clear communication for technical and non-technical audiences, and a collaborative mindset. A bachelor's degree in Computer Science, IT, or a related field is preferred, but equivalent experience is valued. If you have a proven history in fast-paced environments and a passion for Systems Administrator careers in St. Louis, apply now through Robert Half.

Why Join Us

Partnering with Robert Half means more than a job—it's a gateway to unparalleled career growth, competitive compensation estimated at $80,000-$105,000 annually (based on St. Louis market rates), and a suite of benefits tailored for your success. Enjoy comprehensive health coverage, 401(k) matching, generous PTO, and professional development funds for certifications and training. Our St. Louis office fosters a vibrant, inclusive culture with modern amenities, flexible options, and opportunities to work on cutting-edge projects for leading employers.

St. Louis offers an unbeatable quality of life: affordable living, world-class attractions like the Gateway Arch, thriving tech scene, and easy access to major hubs. At Robert Half, we prioritize work-life balance, innovation, and your professional journey. This Systems Administrator position is perfect for IT professionals ready to elevate their impact. SEO keywords: Systems Administrator St. Louis MO, IT jobs Missouri, Windows Linux Admin, Cloud Systems Engineer. Apply today and let's build the future together!