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Network Engineer Jobs in O Fallon, IL (NOW HIRING)

HRUCKUS

Senior Network Engineer

Edwardsville, IL · On-site

$97K - $133K/yr

They are looking for an experienced Senior Network Engineer to support network configuration and deployment activities, ensuring accuracy and consistency while collaborating with cross-functional ...

Leidos

Network Engineer II

Shiloh, IL

$59K - $106K/yr

The Network Engineer will perform sustainment, maintenance, Problem and Change management services to help ensure secure, reliable, and uninterrupted availability of the Department of Defense IP ...

Leidos

Network Engineer II

Shiloh, IL · On-site

$59K - $106K/yr

The Network Engineer will perform sustainment, maintenance, Problem and Change management services to help ensure secure, reliable, and uninterrupted availability of the Department of Defense IP ...

Leidos

Implementations Network Engineer III

Shiloh, IL · On-site

The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for an Implementations Network Engineer at Scott AFB, IL . TheImplementations ...

Leidos

Network Engineer II

Scott Air Force Base, IL · On-site

$59K - $106K/yr

The Network Engineer will perform sustainment, maintenance, Problem and Change management services to help ensure secure, reliable, and uninterrupted availability of the Department of Defense IP ...

VIVOS HOLDINGS

Engineer Network

Saint Louis, MO · On-site

The Network Engineer designs, implements, and maintains secure, scalable, and high-performance enterprise network infrastructure. This role supports IT operations across multiple locations and cloud ...

FEDITC LLC

Network Engineer III

Scott Air Force Base, IL · On-site

$125K - $150K/yr

FEDITC is seeking a Network Engineer III to work on-site at Scott AFB . The selected candidate shall provide network analysis, design, implementation, and troubleshooting services to engineer ...

Vivos Holdings

Engineer Network

Saint Louis, MO · On-site

The Network Engineer designs, implements, and maintains secure, scalable, and high-performance enterprise network infrastructure. This role supports IT operations across multiple locations and cloud ...

Leidos

Implementations Network Engineer II

Shiloh, IL · On-site

$59K - $106K/yr

The Implementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects supporting the ...

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Showing results 41-60

All JobsNetwork Engineer JobsNetwork Engineer Jobs in O'Fallon, IL

Network Engineer information

See O Fallon, IL salary details

$28.9K

$101.7K

$147.4K

How much do network engineer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for network engineer in O'Fallon, IL is $101,713.00, according to ZipRecruiter salary data. Most workers in this role earn between $83,000.00 and $124,500.00 per year, depending on experience, location, and employer.

What does a network engineer do?

A Network Engineer is responsible for designing, implementing, and maintaining the computer networks that support in-house voice, data, video, and wireless network services. They ensure network reliability and performance, troubleshoot issues, and optimize network security. Network Engineers work with hardware and software, coordinate with other IT professionals, and often manage upgrades or expansions to meet an organization's needs.

What are the key skills and qualifications needed to thrive as a network engineer, and why are they important?

To thrive as a Network Engineer, you need a solid understanding of network protocols, routing and switching, and typically hold a degree in computer science or a related field. Familiarity with tools like Cisco IOS, network monitoring software, and certifications such as CCNA or CCNP are highly valued. Strong problem-solving skills, effective communication, and the ability to work well under pressure set top performers apart. These skills ensure the reliable design, implementation, and maintenance of network infrastructure, which is critical for organizational connectivity and security.

What does a network engineer do?

Network Engineers support and optimize all processes for maintaining a company’s computer network, selecting and deploying software and hardware and making local area networks (LANs) and wide area networks (WANs) accessible, and making sure that company personnel can securely access the internet to complete work. Network Engineers also analyze network performance, configure network features based on client needs, and develop guidelines for acceptable network use.

What is the difference between Network Engineer vs Network Administrator?

AspectNetwork EngineerNetwork Administrator
CertificationsCCNA, CCNP, CompTIA Network+CCNA, CompTIA Network+
Work EnvironmentDesigning, implementing, and troubleshooting network infrastructureManaging and maintaining existing network systems
ResponsibilitiesNetwork design, configuration, and optimizationMonitoring, maintaining, and supporting network operations
Industry UsageIT, telecommunications, large enterprisesCorporate, small to medium businesses, educational institutions

While both roles involve working with networks, Network Engineers focus on designing and building network systems, whereas Network Administrators manage and support existing networks. Understanding these differences helps organizations assign the right responsibilities and professionals for their network needs.

What are some common challenges network engineers face when managing large-scale enterprise networks?

Network Engineers working with large-scale enterprise networks often encounter challenges such as ensuring network security across multiple locations, minimizing downtime during upgrades or maintenance, and troubleshooting complex connectivity issues. They may also need to balance high availability with performance, manage diverse hardware and software, and coordinate with cross-functional teams like cybersecurity and IT support. Staying updated with rapidly evolving technologies and addressing scalability concerns are key aspects of the role.
More about Network Engineer jobs
What are the most commonly searched types of Network Engineer jobs in O'Fallon, IL? The most popular types of Network Engineer jobs in O'Fallon, IL are:
What are popular job titles related to Network Engineer jobs in O'Fallon, IL? For Network Engineer jobs in O'Fallon, IL, the most frequently searched job titles are:
What cities near O'Fallon, IL are hiring for Network Engineer jobs? Cities near O'Fallon, IL with the most Network Engineer job openings:
Network Engineer jobs near you
Infographic showing various Network Engineer job openings in O'Fallon, IL as of August 2026, with employment types broken down into 73% Full Time, and 27% Contract. Highlights an 97% In-person, and 3% Remote job distribution, with an average salary of $101,713 per year, or $48.9 per hour.

Senior Network Engineer

HRUCKUS

Edwardsville, IL • On-site

$97K - $133K/yr

Full-time

Re-posted 22 days ago

Job description

Job Summary:
HRUCKUS is a Veteran-Owned management consulting firm specializing in Technical and Cleared Recruiting for defense agencies. They are looking for an experienced Senior Network Engineer to support network configuration and deployment activities, ensuring accuracy and consistency while collaborating with cross-functional teams.
Responsibilities:
• Execute base configurations of network devices using established runbooks and standardized templates
• Perform configuration activities within centralized network management platforms, including device onboarding, policy application, and pre-deployment validation
• Support device staging, provisioning, and deployment preparation activities
• Build and apply repeatable templates across large volumes of network equipment while maintaining consistency and accuracy
• Execute detailed configuration processes and understand downstream impacts of missed or skipped steps
• Identify and document issues encountered during the build process and escalate appropriately
• Provide clear written documentation regarding issues, observations, and recommended actions
• Identify process gaps or unclear documentation and provide feedback to improve runbooks and procedures
• Support continuous process improvement initiatives
• Work closely with quality assurance teams, operations teams, and project stakeholders to resolve issues and support delivery timelines
• Communicate build status, project updates, blockers, and completion milestones clearly and consistently
• Support a collaborative team environment focused on quality and operational excellence
Qualifications:
Required:
• 3–6 years of network engineering experience supporting deployment, staging, or infrastructure operations environments
• Hands-on experience in circuit deployments
• Hands-on experience in firewall deployments
• Hands-on experience in router and switch deployments
• Strong understanding of routing and switching
• Strong understanding of VLAN concepts and design
• Strong understanding of network circuits and connectivity
• Strong understanding of centralized network management concepts
• Experience executing detailed technical runbooks within production or deployment environments
• Strong technical documentation and troubleshooting skills
• Detail-oriented with a process-driven mindset
• Ability to work efficiently within a high-volume environment without sacrificing quality
• Strong written and verbal communication skills
• Must be legally authorized to work in the United States without sponsorship now or in the future
Preferred:
• Experience working with firewalls
• Experience working with routers and switches
• Experience working with wireless access points
• Experience working with cellular networking technologies
• Experience with centralized network management and configuration platforms
• Experience supporting device staging and provisioning workflows
Company:
Hruckus is a management consultancy that offers strategic sourcing, IT strategy, business case analysis and program management services. Founded in 2014, the company is headquartered in Washington, USA, with a team of 11-50 employees. The company is currently Early Stage.

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