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Infrastructure System Engineer Jobs in O Fallon, MO

Control Devices, LLC

Controls Engineer

Fenton, MO · On-site

$80K - $103K/yr

System architecture design (PLC/HMI/DCS, I/O, networks, computer infrastructure) * Electrical ... Robotic programming and support * HMI/SCADA application development and screen design * Design ...

Control Devices LLC

Controls Engineer

Fenton, MO · On-site

$80K - $103K/yr

The Control System Engineer is responsible for development of the technical aspects of assigned ... I/O, networks, computer infrastructure)Electrical control panel design and ...

Accenture

AI & HPC Infrastructure Engineer

Saint Louis, MO · On-site

$97K - $127K/yr

Integrate AI infrastructure platforms with existing IT systems, data pipelines, security frameworks, model-serving endpoints, and enterprise governance controls * Design and implement agentic AI ...

Cubic Corporation

Systems Engineer / FSR

Saint Louis, MO · On-site

$123K - $156K/yr

Coordinate with software, infrastructure, cybersecurity, test, and program-management teams ... Monitor system health and coordinate timely resolution of technical problems. * Support security ...

US Bank

Infrastructure Data Analytics Engineer

Earth City, MO · On-site

$108K - $130K/yr

Infrastructure monitoring platforms * CMDB and asset management systems * Cloud platforms (Azure ... Data Engineering & Transformation * Develop complex SQL queries, stored procedures, views, and data ...

CACI

Senior Systems Engineer

Saint Louis, MO · On-site

$82K - $172K/yr

Work on-site at a Government facility as a trusted engineering partner to mission system owners. Own engineering rigor across exceptionally complex systems spanning software, data, and infrastructure.

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All JobsInfrastructure System Engineer JobsInfrastructure System Engineer Jobs in O'Fallon, MO

Infrastructure System Engineer information

See O Fallon, MO salary details

$43.5K

$118.9K

$170.3K

How much do infrastructure system engineer jobs pay per year?

As of Sep 1, 2026, the average yearly pay for infrastructure system engineer in O'Fallon, MO is $118,868.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,600.00 and $131,900.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an infrastructure system engineer?

To thrive as an Infrastructure System Engineer, you need a strong background in systems administration, networking, and IT infrastructure management, usually backed by a degree in computer science or a related field. Familiarity with tools like VMware, Microsoft Azure, AWS, Linux/Windows servers, and certifications such as CompTIA Network+, Microsoft Certified: Azure Administrator, or AWS Certified Solutions Architect are typically required. Problem-solving, teamwork, and effective communication are essential soft skills for collaborating across departments and responding to critical incidents. These skills and qualifications are crucial for maintaining reliable, secure, and scalable IT environments that support business operations.

What are some common challenges faced by infrastructure system engineers when managing large-scale systems?

Infrastructure System Engineers often encounter challenges such as ensuring system scalability, maintaining high availability, and minimizing downtime during updates or incidents. Monitoring and proactively addressing security vulnerabilities across complex, distributed environments is another critical aspect. Collaborating with cross-functional teams, such as development and operations, is essential to align infrastructure changes with business goals and rapidly address emerging issues. Staying current with evolving technologies and best practices helps in overcoming these challenges effectively.

What is the difference between Infrastructure System Engineer vs Network Engineer?

AspectInfrastructure System EngineerNetwork Engineer
CertificationsCompTIA Network+, Cisco CCNA, Microsoft certificationsCompTIA Network+, Cisco CCNA, Juniper JNCIA
Work EnvironmentData centers, server rooms, cloud environmentsNetwork operations centers, enterprise networks
Industry UsageIT infrastructure, cloud services, enterprise systemsTelecommunications, enterprise networking, internet service providers

While both roles require networking certifications and involve working with IT infrastructure, Infrastructure System Engineers focus on overall system architecture, servers, and cloud integration, whereas Network Engineers specialize in designing, implementing, and maintaining network hardware and connectivity. Understanding these differences helps employers and candidates align skills with job requirements.

How much do infrastructure system engineers get paid?

Infrastructure system engineers typically earn a median annual salary ranging from $70,000 to $110,000, depending on experience, location, and certifications. Salaries can be higher for those with specialized skills in cloud platforms, networking, or security, and often include benefits such as health insurance and retirement plans.

Is infrastructure system engineer a high paying job?

Infrastructure System Engineers typically earn competitive salaries that vary based on experience, location, and certifications such as Cisco or Microsoft. In general, they have higher earning potential compared to many entry-level IT roles due to their specialized skills in network, server, and system management.

What is an infrastructure system engineer?

An infrastructure system engineer designs, implements, and maintains the core technology systems that support an organization's IT environment, including servers, networks, and data centers. They often work with cloud platforms, scripting, and monitoring tools to ensure system reliability and security. Strong problem-solving skills and knowledge of networking, virtualization, and security are essential for this role.

What are popular job titles related to Infrastructure System Engineer jobs in O'Fallon, MO?

For Infrastructure System Engineer jobs in O'Fallon, MO, the most frequently searched job titles are:

What job categories do people searching Infrastructure System Engineer jobs in O'Fallon, MO look for?

The top searched job categories for Infrastructure System Engineer jobs in O'Fallon, MO are:

What cities near O'Fallon, MO are hiring for Infrastructure System Engineer jobs?

Cities near O'Fallon, MO with the most Infrastructure System Engineer job openings:

Infrastructure System Engineer jobs near you
Infographic showing various Infrastructure System Engineer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $118,868 per year, or $57.1 per hour.

Controls Engineer

Control Devices, LLC

Fenton, MO • On-site

$80K - $103K/yr

Full-time

Retirement, PTO

Re-posted yesterday

Job description

Position Title: Controls Engineer

Department: Model Shop

Location: Fenton, MO

Reports To: Manufacturing Engineer Manager

Classification: Salary -Exempt

Position Summary: The Controls Engineer will be responsible for tasks such as process control, electrical engineering, troubleshooting.

Essential Job Duties: The Control System Engineer is responsible for development of the technical aspects of assigned projects. This may include:

  • Assist in feasibility studies and development of cost estimation
  • System architecture design (PLC/HMI/DCS, I/O, networks, computer infrastructure)
  • Electrical control panel design and schematics
  • Instrumentation specification
  • PLC program development and implementation
  • Robotic programming and support
  • HMI/SCADA application development and screen design
  • Design, build and maintain assembly and test equipment.

Collaborate with project managers, engineers, and other team members to ensure projects meet scope, budget, and schedule expectations.

Communicate effectively with project manager throughout the project lifecycle, keeping them informed of progress, risks, and costs.

Maintain expertise in industry trends and vendor/partner offerings to recommend solutions aligned with business needs.

Required Education: Bachelor's degree in Electrical, Mechanical, or Manufacturing Engineering preferred, but not required. Willing to substitute applicable work experience in place of degree.

Required Experience:

  • 5+ years of applicable work experience.
  • Strong understanding of process control principles, PLC programming,Robotic programming, HMI/SCADA development, and industrial network communication protocols.
  • Experience with electrical control systems design and schematics development (a plus).
  • Ability to troubleshoot complex control systems and develop effective solutions.
  • Excellent communication, collaboration, and problem-solving skills.
  • Ability to work independently and manage multiple project priorities effectively.
  • Desire to learn and adapt to new technologies and industry trends.

About Control Devices, LLC

Control Devices (or "CDI"), an HBM Holdings company headquartered in Greater St. Louis, is a leading designer and manufacturer of engineered flow control solutions in the compressed gas, compressed air, oil & gas, and liquid controls markets. The company offers custom valves and flow control solutions for companies who place a premium on quality. Control Devices leverages operational excellence and flow control expertise to deliver trustworthy flow control products and innovative solutions that protect life and our planet.

CDI offers competitive compensation, a comprehensive benefits package, paid time-off, personal protective equipment reimbursement for safety shoes and prescription safety glasses, casual dress work environment, and a solid 401(k) retirement plan to promote financial security.

Control Devices, LLC is an Equal Opportunity Employer. We provide equal employment opportunities to all employees and applicants and prohibit discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

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