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Infrastructure Engineer Three Jobs in Chicago, IL

Simplex Trading

Infrastructure Engineer

Chicago, IL · On-site

$125K - $200K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

Other opportunities as assigned Skills and Experience: * 3+ years of experience as a System ... Infrastructure Engineer pay range $125,000-$200,000 USD Why us? Founded in Chicago in 2004, Simplex ...

System One

Sr Infrastructure Engineer

Itasca, IL · Remote

$111K - $151K/yr

Position Title: Sr. Infrastructure Engineer Location: 275 W Pierce Rd Itasca, IL 60143 (Locals ... This is integral to the deployment and support of our three production data center rooms. The team ...

Northern Trust

Azure Infrastructure Engineer

Chicago, IL · On-site

$99K - $169K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, ... cloud infrastructure or SRE with Azure (networking, compute, storage, identity, security)

Northern Trust

Azure Infrastructure Engineer

Chicago, IL · On-site

$99K - $169K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, ... in cloud infrastructure or SRE with Azure (networking, compute, storage, identity, security)

System One

Sr Infrastructure Engineer

Itasca, IL · Remote

$111K - $151K/yr

Position Title: Sr. Infrastructure Engineer Location: 275 W Pierce Rd Itasca, IL 60143 (Locals ... This is integral to the deployment and support of our three production data center rooms. The team ...

System One

Sr Infrastructure Engineer

Itasca, IL · Remote

$111K - $151K/yr

Position Title: Sr. Infrastructure Engineer Location: 275 W Pierce Rd Itasca, IL 60143 (Locals ... This is integral to the deployment and support of our three production data center rooms. The team ...

System One

Sr Infrastructure Engineer

Itasca, IL · Remote

$111K - $151K/yr

Position Title: Sr. Infrastructure Engineer Location: 275 W Pierce Rd Itasca, IL 60143 (Locals ... This is integral to the deployment and support of our three production data center rooms. The team ...

System One

Infrastructure Engineer Sr

Itasca, IL · Remote

$111K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Infrastructure Engineer Sr Location: Itasca, Illinois Type: Contract Compensation ... Work Model: Onsite - onsite Hours: 3:00 PM - 1:30 AM EST Security Clearance: Overview Leave ...

System One

Infrastructure Engineer Sr

Itasca, IL · Remote

$111K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Infrastructure Engineer Sr Location: Itasca, Illinois Type: Contract Compensation ... Work Model: Onsite - onsite Hours: 3:00 PM - 1:30 AM EST Security Clearance: Overview Leave ...

System One

Infrastructure Engineer Sr

Itasca, IL · Remote

$111K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Infrastructure Engineer Sr Location: Itasca, Illinois Type: Contract Compensation ... Work Model: Onsite - onsite Hours: 3:00 PM - 1:30 AM EST Security Clearance: Overview Leave ...

System One

Infrastructure Engineer Sr

Itasca, IL · Remote

$111K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Infrastructure Engineer Sr Location: Itasca, Illinois Type: Contract Compensation ... Work Model: Onsite - onsite Hours: 3:00 PM - 1:30 AM EST Security Clearance: Overview Leave ...

System One

Infrastructure Engineer Sr

Itasca, IL · Remote

$111K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Infrastructure Engineer Sr Location: Itasca, Illinois Type: Contract Compensation ... Work Model: Onsite - onsite Hours: 3:00 PM - 1:30 AM EST Security Clearance: Overview Leave ...

paradigm

IT Network Engineer III

Lombard, IL · Hybrid

The Network Engineer III is accountable for the analysis, design, implementation, administration ... Design, implement, administer, and support enterprise firewallcentric network infrastructure ...

paradigm

IT Network Engineer III

Lombard, IL · Hybrid

The Network Engineer III is accountable for the analysis, design, implementation, administration ... Design, implement, administer, and support enterprise firewallcentric network infrastructure ...

Simplex Trading

Infrastructure Engineer

Chicago, IL · On-site

$110K - $145K/yr

Other opportunities as assigned Skills and Experience: * 3+ years of experience as a System Administrator, Linux Administrator, or similar * Thorough understanding of Linux (kernel, modules ...

Optiver

Enterprise Infrastructure Engineering Lead

Chicago, IL · Hybrid

$110K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Proven leadership experience managing or mentoring technical teams (minimum 3+ years in a lead capacity) * Strong technical background in infrastructure engineering * Deep hands-on experience with ...

Paradigm

IT Network Engineer III

Lombard, IL · On-site

$92K - $145K/yr

  • Medical

  • Life

  • Retirement

  • PTO

The Network Engineer III is accountable for the analysis, design, implementation, administration ... Design, implement, administer, and support enterprise firewall-centric network infrastructure ...

Optiver

Enterprise Infrastructure Engineering Lead

Chicago, IL · On-site

$200K - $230K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Proven leadership experience managing or mentoring technical teams (minimum 3+ years in a lead capacity) * Strong technical background in infrastructure engineering * Deep hands-on experience with ...

Paradigm

IT Network Engineer III

Lombard, IL · On-site

  • Medical

  • Life

  • Retirement

  • PTO

The Network Engineer III is accountable for the analysis, design, implementation, administration ... Design, implement, administer, and support enterprise firewall-centric network infrastructure ...

Jet Support Services, Inc.

Cloud Infrastructure Engineer

Chicago, IL · On-site

$57.50 - $76.75/hr

  • Medical

  • Dental

  • Vision

  • Retirement

Position Summary As a Cloud Infrastructure Engineer, you will implement, support, and maintain our ... Minimum of 3 years' experience administering M365 environments with an emphasis on Exchange ...

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Showing results 21-40

All JobsInfrastructure Engineer Three JobsInfrastructure Engineer Three Jobs in Chicago, IL

Infrastructure Engineer Three information

See Chicago, IL salary details

$47.9K

$130.9K

$187.5K

How much do infrastructure engineer three jobs pay per year?

As of Aug 16, 2026, the average yearly pay for infrastructure engineer three in Chicago, IL is $130,897.00, according to ZipRecruiter salary data. Most workers in this role earn between $110,700.00 and $145,200.00 per year, depending on experience, location, and employer.

What does an infrastructure engineer do?

An infrastructure engineer designs, implements, and maintains the hardware, networks, and systems that support an organization’s IT environment. They work with servers, cloud services, and networking equipment, often using tools like automation scripts and monitoring software to ensure system reliability and security. Strong technical skills and certifications in networking or cloud platforms are typically required for this role.

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Infrastructure Engineer Three jobs near you

Infrastructure Engineer

Simplex Trading

Chicago, IL • On-site

$125K - $200K/yr

Full-time

Medical, Dental, Vision, Retirement

Re-posted 7 days ago

Job description

Our employees are our greatest asset. We have spent years building a team of talented, dedicated technologists, data-driven traders, and expert leaders with an emphasis on our core pillars:People, Process, Trading Edge, and Technology. Simplex is an in-office organization, helping to foster a collaborative and communicative culture.
Career Description
Simplex is looking for smart, curious, and driven individuals to join our technology team. Technology at Simplex is the core of the business. We are a leading technology-driven proprietary market-making firm. You will be someone excited by challenges and proactive in problem-solving.
What will you be doing?
  • Develop and maintain monitoring and deployment systems (Systems and Network)
  • Triage and respond to issues
  • Prepare and execute changes to the Linux environment
  • Maintain and deploy servers and workstations
  • Projects will be completed both independently and as a part of a team, when necessary
  • This is an in-office position, with occasional onsite work at several colocation facilities in Chicago, Aurora, and New Jersey
  • Infrequent evening/weekend work to allow for change execution outside of trading hours
  • Other opportunities as assigned

Skills and Experience:
  • 3+ years of experience as a System Administrator, Linux Administrator, or similar
  • Thorough understanding of Linux (kernel, modules, filesystems) with special emphasis on the network stack, especially multicast, and OpenOnload
  • Experience working with Linux and standard tools (bash, grep, sed, awk) and scripting languages (Python, Perl, bash)
  • Understanding of Linux concepts (kernel, modules, memory allocation, filesystems)
  • Familiarity with common server technologies (IPMI, SNMP), or software (Nagios, Ansible, dnf/rpm, git)
  • Experience troubleshooting complex performance issues
  • Ability to lift and move heavy equipment (40-50 lb regularly)

Annual base salary ranges from $125,000 to $200,000, and is influenced by a number of factors, including qualifications and experience. This role is also eligible for an annual discretionary bonus, of which can be a significant portion of total compensation. This full time role is also eligible for other forms of compensation and benefits including health/dental/vision insurance, and 401(k) contributions.
Infrastructure Engineer pay range
$125,000-$200,000 USD
Why us?
Founded in Chicago in 2004, Simplex is a leading, technology-driven, proprietary market-making firm. We work with the most advanced technology and software in the market, and we've continued to remain at the forefront of the industry by always focusing on innovation, automation, and data-driven analysis. We also leverage our experience and expertise to make strategic investments and capitalize on opportunities in the venture capital markets with promising, early-stage financial and technology start-ups.
PLUS, the goods!
  • Benefits: Excellent a la carte Medical/Dental/Vision (free employee coverage!), 401(k) match, generous parental leave!
  • The Office: The kitchen is stocked with snacks, and beverages; you also have daily stipends for breakfast and lunch!
  • Tuition Reimbursement: As an investment in our employees' careers and the company's future, we offer educational assistance to provide employees with professional development opportunities that increase their skills and enhance their contributions to the organization!
  • Employee Discounts: To gyms, national brands, and more!
  • Building: We are located in the Federal Reserve building. As a tenant, you have access to a building gym and a full cafeteria. We are easily accessible to all public transportation.
  • Charity Match: We match up to $2,000 a year in donations to the charities of your choice!
  • Fun Events: In-person happy hours, celebrations throughout the year, game nights, video game fun, and so much more!

Simplex is an Equal Opportunity Employer. Simplex and its recruitment partners may use artificial intelligence (AI) tools to support certain aspects of the recruiting and hiring process. Final hiring decisions are made by humans. For all job postings, Simplex may use AI to review and analyze applications, resumes, interviews, and applicant responses. Simplex complies with applicable federal and state laws governing AI use. Applicants may still request reasonable accommodations. For more information related to AI or to request an accommodation, please contact HR@simplextrading.com.

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