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Freelance Core Network Engineer Jobs in Illinois

IMC

Backbone Network Engineer

Chicago, IL · On-site

$175K - $240K/yr

We are seeking a highly skilled Backbone Network Engineer to join our global network team. In this ... Core Responsibilities: * Design and optimize backbone infrastructure for high-speed, low-latency ...

Levi Ray & Shoup Inc

Network Engineer

Decatur, IL · On-site

$25 - $40/hr

LRS is seeking a skilled Network Engineer to support, design, and improve network infrastructure ... This role focuses on Cisco networking technologies, SolarWinds monitoring, and core IP networking ...

Request Technology, LLC

Senior Network Engineer

Chicago, IL · Hybrid

$107.20K - $146.90K/yr

Senior Network Engineer Rate: Open Location: Chicago, IL/ Houston, TX / Salt Lake City, UT *This ... FMC, Illumio Core, and wireless controllers (5520/9800). * Apply WAN/LAN standards and best ...

Levi, Ray and Shoup

Network Engineer

Decatur, IL · On-site

$25 - $40/hr

LRS is seeking a skilled Network Engineer to support, design, and improve network infrastructure ... This role focuses on Cisco networking technologies, SolarWinds monitoring, and core IP networking ...

LRS

Network Engineer

Decatur, IL

$25 - $40/hr

LRS is seeking a skilled Network Engineer to support, design, and improve network infrastructure ... This role focuses on Cisco networking technologies, SolarWinds monitoring, and core IP networking ...

Akuna Capital

Network Engineer III

Chicago, IL · On-site

What you'll do as a Network Engineer at Akuna: We are seeking a Network Engineer III to join Akuna ... during core job hours, ensuring the stability and performance of our critical trading systems.

Akuna Capital

Network Engineer III

Chicago, IL · On-site

$140K/yr

What you'll do as a Network Engineer at Akuna: We are seeking a Network Engineer III to join Akuna ... during core job hours, ensuring the stability and performance of our critical trading systems.

Akuna Capital

Network Engineer III

Chicago, IL · On-site

$140K/yr

What you'll do as a Network Engineer at Akuna: We are seeking a Network Engineer III to join Akuna ... during core job hours, ensuring the stability and performance of our critical trading systems.

Akuna Capital

Network Engineer III

Chicago, IL · On-site

$140K/yr

We are seeking a Network Engineer III to join Akuna's innovative and growing IT Infrastructure team ... during core job hours, ensuring the stability and performance of our critical trading systems.

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Freelance Core Network Engineer information

What is the difference between Freelance Core Network Engineer vs Network Operations Center (NOC) Technician?

AspectFreelance Core Network EngineerNetwork Operations Center (NOC) Technician
CertificationsCCNA, CCNP, Cisco certificationsCompTIA Network+, CCNA
Work EnvironmentRemote, client sites, project-based24/7 NOC facilities, shift work
Employer & IndustryFreelance, consulting firms, telecomsTelecom companies, managed service providers

The Freelance Core Network Engineer typically works independently on complex network design, configuration, and troubleshooting projects for clients remotely or on-site. In contrast, a NOC Technician monitors and maintains network health in a centralized facility, often working in shifts. Both roles require networking certifications like CCNA, but the freelance engineer focuses on project-based work, while the NOC technician handles ongoing network operations.

What are the most commonly searched types of Core Network Engineer jobs in Illinois? The most popular types of Core Network Engineer jobs in Illinois are:
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Freelance Core Network Engineer jobs near you

Backbone Network Engineer

IMC

Chicago, IL • On-site

$175K - $240K/yr

Full-time

PTO

Posted 9 days ago

Job description

We are seeking a highly skilled Backbone Network Engineer to join our global network team. In this role, you will design, implement, and optimize the backbone infrastructure that underpins our global trading operations. You'll work closely with engineers worldwide to ensure our network continues to deliver the ultra-low latency, high availability, and robust security required to maintain our competitive edge.
Core Responsibilities:
  • Design and optimize backbone infrastructure for high-speed, low-latency data transmission and scalability.
  • Deploy and configure high-performance routing and optical hardware to minimize congestion and maximize availability.
  • Engineer low-latency routing paths between data centers, trading venues, and counterparties.
  • Proactively detect, troubleshoot, and resolve network issues using advanced monitoring and analysis tools.
  • Plan and scale backbone capacity to support global growth.
  • Partner with trading, development, and infrastructure teams to integrate network changes seamlessly into production.
  • Collaborate globally to maintain documentation, policies, and operational standards.

Skills and Experience:
  • 5+ years of experience in network engineering, with a focus on backbone or large-scale infrastructure.
  • Deep knowledge of routing protocols (BGP, IS-IS, MPLS, PIM, Segment Routing) and traffic engineering.
  • Expertise with routers, switches, and optical networking technologies (DWDM/ONS).
  • Strong troubleshooting skills across LAN, unicast/multicast routing, and packet-level analysis.
  • Experience with network automation and scripting (Python, Bash, Ansible).
  • Proven ability to solve complex problems quickly and effectively.
  • Strong communication skills for cross-team collaboration.
  • Willingness to participate in on-call rotations during trading hours and critical events.

While this is a hybrid position, we expect an in-office presence in our Chicago office 3-4 times per week
The Base Salary range for the role is included below. Base salary is only one component of total compensation; all full-time, permanent positions are eligible for a discretionary bonus and benefits, including paid leave and insurance. Please visit Benefits - US | IMC Trading for more comprehensive information.
Salary Range
$175,000-$240,000 USD
About Us
IMC is a global trading firm powered by a cutting-edge research environment and a world-class technology backbone. Since 1989, we've been a stabilizing force in financial markets, providing essential liquidity upon which market participants depend. Across our offices in the US, Europe, Asia Pacific, and India, our talented quant researchers, engineers, traders, and business operations professionals are united by our uniquely collaborative, high-performance culture, and our commitment to giving back. From entering dynamic new markets to embracing disruptive technologies, and from developing an innovative research environment to diversifying our trading strategies, we dare to continuously innovate and collaborate to succeed.

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