Senior Systems Administrator — Cloud, Automation & Security

Lange Companies, Inc.; St. Louis (MO); On-site; USD 70,000 - 100,000; Full time

Job summary

Lange Companies, Inc. is seeking a Systems Administrator in St. Louis, MO to strengthen and modernize technology platforms supporting employees, customers, and family of companies. The role blends systems administration with project execution, documentation, and continuous improvement across cloud and on-prem environments.

The ideal candidate will be curious, self-directed, and able to drive solutions with strong ownership, communication, and the ability to challenge assumptions professionally.

Qualifications

• Approximately 10 years of progressive experience supporting enterprise IT environments.
• Strong experience with Microsoft 365, Azure, Entra ID, Intune, and cloud-first environments.
• Proven ability to lead projects from evaluation through implementation and coordinate external partners.

Responsibilities

• Lead technology projects involving cloud services, infrastructure, automation, cybersecurity, and business applications.
• Identify gaps and drive improvements across the technology environment with limited day-to-day oversight.
• Evaluate technologies and vendors, develop proof-of-concept solutions, and document comparisons.
• Coordinate internal resources, MSPs, vendors, and stakeholders to keep initiatives moving.
• Administer and support Microsoft 365, Azure, Entra ID, Intune, Exchange Online, SharePoint Online, Teams.
• Create and maintain accurate technical documentation and runbooks.

Skills

Microsoft 365

Azure

Entra ID

Intune

Exchange Online

SharePoint Online

Teams

Documentation

Vendor management

Project execution

Cloud infrastructure

Job description

Lange Companies, Inc. is seeking a Systems Administrator in St. Louis, MO to strengthen and modernize technology platforms supporting employees, customers, and family of companies. The role blends systems administration with project execution, documentation, and continuous improvement across cloud and on-prem environments.

The ideal candidate will be curious, self-directed, and able to drive solutions with strong ownership, communication, and the ability to challenge assumptions professionally.