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Infrastructure System Engineer Jobs in St Louis, MO

Systems Engineer

Scott Air Force Base, IL · On-site

$40K - $80K/yr

... system management tools * Proactively ensure the highest levels of systems and infrastructure ... developers to implement those fixes * Maintain security, backup, and redundancy strategies

Overview Linux Systems Engineer Springfield, VA or St. Louis, MO Active TS (SCI eligibility ... Standardize system configuration, patching, and deployment processes through Infrastructure-as-Code ...

Systems Engineer

Scott Air Force Base, IL · On-site

$40K - $80K/yr

... system management tools * Proactively ensure the highest levels of systems and infrastructure ... developers to implement those fixes * Maintain security, backup, and redundancy strategies

None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux System ... The Linux Systems Engineer is an active participant in SAFe and Scrum development teams and ...

None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux System ... The Linux Systems Engineer is an active participant in SAFe and Scrum development teams and ...

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Showing results 1-20

Infrastructure System Engineer information

See St Louis, MO salary details

$45.2K

$123.5K

$176.9K

How much do infrastructure system engineer jobs pay per year?

As of Sep 1, 2026, the average yearly pay for infrastructure system engineer in St. Louis, MO is $123,537.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,500.00 and $137,100.00 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 St. Louis, MO?

For Infrastructure System Engineer jobs in St. Louis, MO, the most frequently searched job titles are:

What job categories do people searching Infrastructure System Engineer jobs in St. Louis, MO look for?

The top searched job categories for Infrastructure System Engineer jobs in St. Louis, MO are:

What cities near St. Louis, MO are hiring for Infrastructure System Engineer jobs?

Cities near St. Louis, MO with the most Infrastructure System Engineer job openings:

Infographic showing various Infrastructure System Engineer job openings in St. Louis, MO as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 17% Part Time, and 3% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $123,537 per year, or $59.4 per hour.

System Engineer (Cloud)

Scott Air Force Base, IL

By Light Professional IT Services LLC
IT Services • 1 - 5K employees

$53.75 - $72/hr

Full-time

Re-posted 10 days ago


Job description

By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide.


By Light is supporting the Managed Information Technology Service (MITS) Enterprise Support Managed Services effort for the United States Transportation Command (USTRANSCOM). The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command’s infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6). 

The successful candidate initiates, supervises, and/or develops requirements from a project’s inception to conclusion for complex to extremely complex programs; Provides strategic advice, technical guidance and expertise to program and project staff; Provides detailed analysis, evaluation and recommendations for improvements, optimization development, and/or maintenance efforts for client-specific or mission critical challenges/issues; Consults with client to define needs or problems, supervises studies and leads surveys to collect and analyze data to provide advice and recommend solutions.

This position is for Monday through Friday, normal business hours.  However, employee may be required to provide after-hours and weekend support during planned or emergency events.


  • Providing technical leadership and hands-on development and implementation of commercial cloud solution architectures that modernize the way our customers architect, deploy, and use cloud technology, focusing on security, scalability, and resiliency
  • Planning, designing, and managing the migration, re-platforming, integration, implementation and operation of our client's complex cloud environments enabling managed shared services
  • Ensuring commercial cloud service offerings (CSO) adhere to DoD Cloud Computing policy/guidelines
  • Providing specific, detailed information for hardware and software selection, cloud service provider selection, implementation techniques, application data migration techniques and tools for the most efficient solution to meet business needs, including present and future capacity requirements 
  • Developing and conducting testing of cloud and virtualization systems 
  • Maintaining technical expertise relevant industry standards and in cloud computing and virtualization technologies such as cloud service provider architecture, design, and configuration; cloud deployment models including public, community, private, and hybrid; cloud service delivery models including infrastructure-, platform-, and software-as-a-service; automation; hypervisors; containers; virtual compute, storage, and networks; virtual infrastructure management; self-provisioning; and scaling 
  • Evaluating and reporting on new cloud and virtualization technologies to enhance capabilities of cloud-based and virtualized services 
  • May also provide systems engineering activities such as: Concept of Operations Formulation, Requirements Definition, Analysis and Engineering, System Architecting, System Analysis and Design, Interface and Data Architectures, Validation and Verification, System Integration, System Op. Performance Analysis, Lifecycle Cost Analysis Estimation, Decision Analysis and Physical Configuration Analysis (PCA)
  • Participating with senior managers to establish strategic plans and objectives
  • Recommending/making decisions on administrative or project work matters and ensures effective achievement of program, project, or organizational objectives

  • Bachelor's degree and ten (10) years or more experience
  • IAT Level III certifications (CASP+ CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH)
  • Computing Environment (CE) certification or certificate for the technical area of responsibility for Cloud or virtualization (e.g., Azure, AWS, oracle, IBM, etc.) with a preference in Azure.
  • Proven track record of work experience as a cloud architect, designing and deploying cloud solutions
  • Proficient knowledge of Redhat Enterprise Linux operating system and command line administration.
  • Expertise in next generation firewall (Palo Alto) deployment, configuration and management
  • In-depth understanding of, and experience as a cloud engineer with AWS, Networking, VPNs
  • Understanding of layer three routing protocols, emphahisis on BGP.
  • Experience troubleshooting end to end connectivity issues within DOD networking infrastructure
  • Ability to utilize a variety of tools like Git, Jenkins, Groovy, YML, and AWS security capabilities (WAF, GuardDuty, Security Groups, IAM, etc.).
  • General knowledge of AWS EC2, S3, System Manager, CloudFormation, CloudTrail, Lambda, IAM
  • Exposure to AWS Workspaces or experience deploying VDI solutions to AWS Cloud
  • Experience with Route 53 deployment and management within AWS GovCloud environment
  • Experience with Zero trust architectures
  • Administration of multiple networking devices, i.e. firewalls, F5 with networking configuration management tools such as Panorama, Big IQ, etc..
  • Experience working in a team environment with the ability to mentor junior team members
  • Proactively identify and resolve operational, tooling and process inefficiencies

  • Master's degree
  • 15 or more years of experience
  • AWS Cloud Solutions Architect Professional Certification
  • ITIL V4 Foundations Certification
  • Experience with F5 Big-IP devices specificially the LTM and ASM modules
  • Experience with AWS networking and AWS Transit Gateway
  • Experience with Palo Alto FWs specifically managing security policy, NAT policy, and BGP routing.
  • Experience with Juniper and Cisco virtual cloud routers
  • Experience with BGP routing in a DoD environment.
  • Familiarty with AWS Site-to-Site Connections
  • Experience with Azure commercial cloud services.
  • Knowledge of Route53 DNS

  • DoD Secret clearance; TS/SCI preferred