IT Infrastructure Engineer

About Millstone Weber

We are transportation infrastructure builders solving complex needs for the communities we work in for close to 100 years. We specialize in a broad range of construction markets including Highway/Bridge, Airfield/Federal, Rail/Mass Transit and Alternate Delivery including Design‑Build. We focus heavily on self-performance with capabilities including heavy duty concrete paving, bridges, structural concrete, deep foundations, earthwork grading, storm drainage, and highway construction.

We are ready to help solve any challenges.

At Millstone Weber, we are:
Team First, Problem Solving, Passionate About Results, and we Get Better Every day. With these standards at the heart of who we are, MW is constantly striving for the best.

The IT Infrastructure Engineer is responsible for maintaining, modernizing, and optimizing Millstone Weber's Microsoft-based technology environment. This role will serve as a subject matter expert for Microsoft Azure, Microsoft 365, and endpoint management, with a strong focus on improving system performance, security, and user experience.

• Own and maintain the Microsoft Azure environment, including reviewing and modernizing systems.
• Lead improvements to SharePoint Online.
• Manage Microsoft 365 services, including Exchange Online, Intune, and related identity and security components.
• Package, deploy, and update software across company devices, enabling automated self-installation and reducing manual intervention.
• Develop and maintain Power Shell scripts to support automation, deployments, and system administration.
• Oversee Windows operating system configuration, patching, and lifecycle management.
• Support networking and wireless infrastructure as it relates to endpoint connectivity and system performance.
• Manage certificate services and PKI-related components.
• Act as a technical resource for troubleshooting complex infrastructure and endpoint issues, occasionally working directly with internal users or teams.
• Collaborate with IT leadership to bring modern best practices and up-to-date technical expertise to the organization.

• 5+ years of experience in IT infrastructure, cloud, or systems engineering roles, with hands‑on responsibility for Microsoft-based environments.
• Bachelor's degree in Information Technology, Computer Science, or a related field preferred; equivalent experience considered.
• Experience supporting and modernizing Microsoft Azure and Microsoft 365 environments in a production setting.
• Strong experience with SharePoint Online, Exchange Online, and Intune, including configuration, optimization, and ongoing support.
• Proven ability to package, deploy, and maintain software across Windows-based devices using modern deployment tools.
• Working knowledge of Power Shell for automation, scripting, and system administration tasks.
• Solid understanding of Windows operating systems, endpoint management, and device lifecycle processes including Autopilot deployment.
• General knowledge of networking and wireless fundamentals as they relate to endpoint connectivity and system performance.
• Experience with certificate services and PKI concepts.
• Ability to assess, improve, and modernize legacy or aging systems in a cloud-based environment.
• Strong communication skills with the confidence to collaborate with technical and non‑technical teams and occasionally troubleshoot issues directly with users.
• SQL or database experience is a plus, but not required.

• Office-based in St. Charles, MO.
• Ability to manage multiple priorities and adapt to evolving technology needs.

At Millstone Weber, we're building more than roads—we're building careers, communities, and a culture of excellence. Join a team that values integrity, innovation, and people-first leadership.

Millstone Weber is an Equal Opportunity Employer and has long led the industry in training and hiring a diverse and inclusive workforce. To accomplish our goals of quality, innovation and continuous improvement, we are committed to partnering with employees and subcontractors who share our company values and seek to continually exceed the expectations of project owners. We strive to maintain a work environment that provides all employees with an opportunity to be successful without regard to race, creed, color, religion, sex, sexual orientation, gender identity, national origin, disabled Veterans and Vietnam Era Veterans, age, or physical/mental condition.

As part of that policy, we adopt and support the Equal Opportunity Laws that are designed to promote the full realization of equal employment opportunity through a positive continuing program.