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

Collabera

Network Engineer

Saint Louis, MO

Minimum of 3 years experience ideally working in a carrier network or a large enterprise network in a design, engineering, or architecture role Additional Information If you want to know more and ...

Cushman & Wakefield

Senior Network Engineer

Saint Louis, MO · On-site

$101K - $138K/yr

Job Title Senior Network Engineer Summary Cushman & Wakefield is seeking a highly motivated Senior Network Engineer to focus on delivering the new Zero Trust Security standards to our Branch offices ...

Cushman & Wakefield

Senior Network Engineer

Saint Louis, MO · On-site

$101K - $138K/yr

Job Title Senior Network Engineer Summary Cushman & Wakefield is seeking a highly motivated Senior Network Engineer to focus on delivering the new Zero Trust Security standards to our Branch offices ...

Cushman & Wakefield

Senior Network Engineer

Saint Louis, MO · On-site

$101K - $138K/yr

Job Title Senior Network Engineer Summary Cushman & Wakefield is seeking a highly motivated Senior Network Engineer to focus on delivering the new Zero Trust Security standards to our Branch offices ...

Cushman & Wakefield

Senior Network Engineer

Saint Louis, MO

$101K - $138K/yr

Job Title Senior Network Engineer Summary Cushman & Wakefield is seeking a highly motivated Senior Network Engineer to focus on delivering the new Zero Trust Security standards to our Branch offices ...

Cushman & Wakefield

Senior Network Engineer

Saint Louis, MO · On-site

$101K - $138K/yr

Job Title Senior Network Engineer Summary Cushman & Wakefield is seeking a highly motivated Senior Network Engineer to focus on delivering the new Zero Trust Security standards to our Branch offices ...

Scout ET

WAN Network Engineer

Saint Louis, MO · On-site

WAN Network Engineer Location: St Louis, MO Duration : 7+ months Experience with MPLS is very important. Overview A growing global company is seeking a talented and motivated WAN engineer to join the ...

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Showing results 21-40

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 6, 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.

Network Engineer

Collabera

Saint Louis, MO

Contractor

Re-posted 22 days ago

Job description

Company Description

About Collabera

Collabera is ranked amongst the top 10 Information Technology (IT) staffing firms in the U.S., with more than $525 million in sales revenue and a global presence that represents approximately 12,000+ professionals across North America (U.S., Canada), Asia Pacific (India, Philippines, Singapore, Malaysia), and Europe (Ireland, Netherlands, Poland, United Kingdom). We support our clients with a strong recruitment model and a sincere commitment to their success, which is why more than 75% of our clients rank us amongst their top three staffing suppliers.

Not only are we committed to meeting and exceeding our customer's needs, but also are committed to our employees' satisfaction as well. We believe our employees are the cornerstone of our success and we make every effort to ensure their satisfaction throughout their tenure with Collabera. As a result of these efforts, we have been recognized by Staffing Industry Analysts (SIA) as the "Best Staffing Firm to Work For" for five consecutive years since 2012. Collabera has over 50 offices across the globe with a presence in ten countries and provides staff augmentation, managed services and direct placement services to global 2000 corporations.

For consultants and employees, Collabera offers an enriching experience that promotes career growth and lifelong learning. Visit www.collabera.com to learn more about our latest job openings.

Awards and Recognitions

--Staffing Industry Analysts: Best Staffing Firm to Work For (2016, 2015, 2014, 2013, 2012)

--Staffing Industry Analysts: Largest U.S. Staffing Firms (2016, 2015, 2014, 2013)

--Staffing Industry Analysts: Largest Minority Owned IT Staffing Firm in the US.

Job Description

Responsibilities:

  • Drives and "owns" specific areas within projects
  • Schedules and Implements Network changes via Network Change Instructions
  • Cleary communicates issues and concepts
  • Understands what our business is
  • Assists in providing 3rd level support
  • Continuously improves specific areas within the team's remit
  • Assists in evaluating and testing new technologies
  • Assists in developing and publishing standards, designs, and other documentation

Qualifications

Qualifications:

  • BS (or higher) in relevant field - Bachelors degree (3 or 4 years) or foreign equivalent in Computer Information Systems, Computer Science, or related field.

Mandatory Experience/Skills:

  • Knowledge and hands-on experience with BGP, EIGRP, OSPF and RIP
  • Experience with Cisco ASR, CRS, 7600, 6500, & 7200 platforms, Juniper Experience
  • Knowledge of carrier technologies such as SONET, SDH, DWDM, and Ethernet services (MEF) as well as the ability to work with carriers for troubleshooting purposes
  • An understanding of MPLS technologies such as L3 VPN, L2 VPN, and any the following: VPLS, MPLS QoS, MPLS TE and mVPN
  • An understanding of multicast technologies such as PIM Sparse mode, PIM Dense mode, and PIM SSM
  • Connector's types & Fibre types
  • MTU throughput testing, Jumbo frames
  • Minimum of 3 years experience ideally working in a carrier network or a large enterprise network in a design, engineering, or architecture role
Additional Information

If you want to know more and apply, please connect with:

Nishita Honest

973-805-7505

nishita.honest(at)collabera.com

Apply