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Unix Linux System Engineer Jobs in Illinois (NOW HIRING)

Next Step Systems

Trade Desk Operations Engineer

Chicago, IL · On-site

$71K - $96K/yr

Responsibilities: - Perform daily procedures relevant to the trading system for equity and futures ... Chicago IL Jobs, Trade Desk Operations Engineer, UNIX, Linux, Windows, Perl, Python, Ruby, SQL ...

Aquatic Capital Management

Systems Engineer

Chicago, IL · On-site

$150K - $300K/yr

Diagnose and resolve the hardest, most obscure system issues that others cannot get to the bottom ... Deep Unix/Linux expertise across multiple distributions; comfortable at every layer of the stack.

Aquatic Capital Management

Systems Engineer

Chicago, IL · On-site

$150K - $300K/yr

Diagnose and resolve the hardest, most obscure system issues that others cannot get to the bottom ... Deep Unix/Linux expertise across multiple distributions; comfortable at every layer of the stack.

Kyndryl

Mainframe z/VM & Linux

Chicago, IL · On-site

... Engineer to support IBM Z virtualization environments and Linux on Z platforms. This role is responsible for provisioning, maintaining, and optimizing virtual machines and Linux systems running on z ...

CYNET SYSTEMS

Java Technical Architect

Chicago, IL · On-site

$60 - $65/hr

Experience with UNIX/Linux-based systems. * Experience with Spring Batch. Responsibilities: * Lead ... DevOps, Cloud Platform (OCP, Kubernetes), and modern CI/CD developer tool kit (STS/IntelliJ ...

TecTammina

Java Developer

Bloomington, IL · On-site

$49 - $63.25/hr

... System RSA 8.55/Subversion/Maven/Artifactory Data Studio, IBM DB2, ZOS Web Services JEE Design Pattern Knowledge of HP Diagnostics STRUTS, Spring HTML development Development in Unix/Linux ...

Sonsoft Inc

Hadoop Consultant

Chicago, IL · On-site

Knowledge of HADOOP Framework and programming in Hive and Pig tools, Design, Best Practices and troubleshooting * Understanding of Unix/Linux system, file systems, shell scripting * Experience with ...

Sonsoft Inc

Hadoop Consultant

Chicago, IL · On-site

Knowledge of HADOOP Framework and programming in Hive and Pig tools, Design, Best Practices and troubleshooting * Understanding of Unix/Linux system, file systems, shell scripting * Experience with ...

Alpha Nexus Group

Lead Linux Engineer

Chicago, IL · On-site

System Administration (primary function) Manage the server (Linux) and user (Windows) computer environment Troubleshoot and resolve hardware and user software issues Provision, install, and setup new ...

NextStep

Trade Desk Operations Engineer

Chicago, IL · On-site

$89K - $122K/yr

Proficient with UNIX/Linux and Windows. * Demonstrated experience with Perl, Python, or Ruby ... Verify the system is in a normal state and turn on strategies for trading. * You will be expected ...

Informatic Technologies

Sr Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

Conducts system-wide testing and some integration testing. * Provides input for code reviews and ... Good to have unix/linux experience * Experience in developing and automating solutions directly ...

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Unix Linux System Engineer information

What does a Unix Linux system engineer do?

On a daily basis, Unix Linux System Engineers are responsible for monitoring system performance, managing server configurations, applying security patches, and troubleshooting any system-related issues. They often collaborate closely with network administrators, database administrators, and application developers to ensure that all systems are running efficiently and securely. Effective communication and documentation are key, as system changes or incidents usually require coordination across multiple IT teams to minimize downtime and maintain service continuity.

What is a Unix Linux system engineer?

Unix Linux System Engineers are IT professionals responsible for designing, implementing, managing, and troubleshooting Unix and Linux-based operating systems and servers. They ensure systems are running efficiently, securely, and are regularly updated. Their duties often include system monitoring, performance tuning, automation with scripts, backup management, and supporting users or other IT staff. They play a critical role in maintaining the backbone of many enterprise IT infrastructures.

What is the difference between Unix Linux System Engineer vs Network Administrator?

AspectUnix Linux System EngineerNetwork Administrator
CertificationsLinux+, RHCE, CompTIA Server+CCNA, Network+
Work EnvironmentData centers, server rooms, cloud environmentsOffice networks, enterprise LAN/WAN
ResponsibilitiesServer setup, scripting, system optimizationNetwork configuration, troubleshooting, security
Industry UsageIT, cloud services, hosting providersCorporate, telecommunications, education

The Unix Linux System Engineer primarily focuses on managing and optimizing Unix/Linux servers and systems, while the Network Administrator handles network infrastructure and connectivity. Both roles require technical certifications and work in IT environments, but their core responsibilities differ—system engineering versus network management.

What are the key skills and qualifications needed to thrive as a Unix Linux system engineer?

To thrive as a Unix/Linux System Engineer, you need strong expertise in Unix/Linux operating systems, scripting (such as Bash or Python), networking fundamentals, and a relevant degree or equivalent experience. Familiarity with configuration management tools like Ansible or Puppet, virtualization platforms, and certifications such as Red Hat Certified Engineer (RHCE) are highly valuable. Analytical problem-solving, attention to detail, and effective communication help you excel in diagnosing issues and collaborating with teams. These skills are essential for maintaining system reliability, optimizing performance, and ensuring secure, uninterrupted IT operations.
What are popular job titles related to Unix Linux System Engineer jobs in Illinois? For Unix Linux System Engineer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Unix Linux System Engineer jobs in Illinois look for? The top searched job categories for Unix Linux System Engineer jobs in Illinois are:
What cities in Illinois are hiring for Unix Linux System Engineer jobs? Cities in Illinois with the most Unix Linux System Engineer job openings:
Unix Linux System Engineer jobs near you
Infographic showing various Unix Linux System Engineer job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 13% Part Time, and 2% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Senior Linux Kubernetes Engineer

Request Technology, LLC

Chicago, IL • On-site

Other

Re-posted 13 days ago

Job description

***We are unable to sponsor for this permanent full-time role***

***Position is Bonus eligible***

Prestigious Financial Institution is currently seeking a Sr. Linux Systems Engineer with strong Kubernetes experience. Candidate will be responsible for managing and improving our highly automated Linux-based systems and platforms while supporting our broader technology infrastructure with a focus on automation. candidate will be working collaboratively with our technology and operations teams to ensure the highest levels of system performance, security, and availability.

Responsibilities:

Managing and improving our Linux-based infrastructure with a focus on performance, reliability, and scalability.

Designing, deploying, and maintaining on-premises Kubernetes clusters and containerized workloads.

Developing and maintaining system-level software, middleware, and APIs to support internal platforms and services.

Automating system workflows and infrastructure tasks using Python, Bash, and configuration management tools like SaltStack.

Building and maintaining RPM packages and internal software repositories.

Collaborating with Application Support (SRE), Development, and Security teams to ensure secure, automated CI/CD and platform integration.

Diagnosing and resolving complex system-level issues involving the OS, network, or container runtime.

Implementing hardened security configurations, including system hardening, secure communications, and identity/access integration.

Participating in an on-call rotation to support critical infrastructure services.

Documenting architectures, tools, and operational processes to support long-term maintainability.

Qualifications:

5+ years of experience in Linux systems administration and infrastructure/platform engineering.

Production experience managing Kubernetes, preferably in bare-metal or on-premises environments (e.g., with kubeadm, RKE, or OpenShift).

Strong scripting and automation skills in Python and Bash.

In-depth knowledge of Linux internals, kernel tuning, and performance diagnostics.

Hands-on experience with SaltStack (preferred), Puppet, or Ansible for configuration management.

Familiarity with observability tools such as Prometheus, Grafana, or Loki.

Solid understanding of core infrastructure protocols and services (TCP/IP, DNS, NTP/PTP, DHCP, etc.). Experience managing CI/CD pipelines with tools such as Jenkins, GitLab, or similar.

Strong troubleshooting skills and a proactive approach to problem-solving.

Preferred Skills:

Certifications such as RHCE or LFCE.

Experience with container runtimes (Containers, Docker) and registry management.

Knowledge of GitOps workflows or tools like ArgoCD or Flux.

Background in security best practices and compliance (e.g., CIS benchmarks, STIGs).

Prior experience in highly regulated or low-latency environments.

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