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Freelance Linux System Engineer Jobs in Buffalo Grove, IL

Kyndryl

Mainframe z/VM & Linux

Chicago, IL

... 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 ...

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 ...

Framestore

Freelance: Nuke - Chicago

Chicago, IL · On-site

$64.75 - $73/hr

Photoshop and Linux experience * Must have US work authorization Desired Skills: * Knowledge of ... Programming and coding experience and knowledge * Experience with Hiero, Shotgun, After effects ...

Framestore

Freelance: CG - Chicago

Chicago, IL · On-site

If you are a freelancer who would be interested in being kept on our books for future freelancing ... Experience with linux \ unix based operating systems * A working knowledge of at least one ...

IMC

Data Engineer - Infrastructure

Chicago, IL

$110K - $145K/yr

Tune Linux systems for I/O throughput and overall performance * Automate configuration and ... Partner with engineering teams to deliver reliable, well-architected data solutions with a focus on ...

Next Step Systems

Senior Systems Engineer

Chicago, IL · On-site

$107K - $147K/yr

Keywords: Chicago IL Jobs, Senior Systems Engineer, Linux Servers, Scripting, Automation Tools, TCP/IP, Networking Concepts, Trading Infrastructure, Financial, Software Engineer, Architect ...

Aplaro Ltd

Junior Trading Systems Engineer

Chicago, IL · On-site

$120 - $160/hr

Manage worldwide Linux-based trading infrastructure by contributing to the planning and execution ... Plan and implement system installations and upgrades * Deploy, configure, and test internal and ...

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Freelance Linux System Engineer information

See Buffalo Grove, IL salary details

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How much do freelance linux system engineer jobs pay per hour?

As of Aug 31, 2026, the average hourly pay for freelance linux system engineer in Buffalo Grove, IL is $61.26, according to ZipRecruiter salary data. Most workers in this role earn between $49.33 and $68.80 per hour, depending on experience, location, and employer.

What does a freelance Linux system engineer do?

A Freelance Linux System Engineer is an IT professional who works independently to design, implement, maintain, and troubleshoot Linux-based systems for clients. They handle tasks such as server setup, system monitoring, security hardening, automation, and providing technical support. Freelance engineers often work remotely or on a contract basis, helping businesses optimize their Linux infrastructure according to specific project needs.

What skills and qualifications are needed to thrive as a freelance Linux system engineer?

To thrive as a Freelance Linux System Engineer, you need advanced knowledge of Linux operating systems, scripting languages (like Bash or Python), and strong troubleshooting abilities, typically supported by a degree in computer science or relevant certifications such as RHCE or CompTIA Linux+. Familiarity with configuration management tools (e.g., Ansible, Puppet), virtualization technologies, and cloud platforms is essential for managing diverse client environments. Excellent communication, time management, and client relationship skills help set top freelancers apart. These competencies ensure reliable system performance, efficient project delivery, and positive client interactions in a dynamic freelance setting.

What are common challenges freelance Linux system engineers face when managing multiple client environments?

Freelance Linux System Engineers often juggle a variety of client systems, each with unique configurations, security requirements, and update schedules. This can make it challenging to keep track of different environments, ensure compatibility, and maintain consistent documentation. Effective time management, strong organizational skills, and setting up standardized processes for monitoring and patching are key to overcoming these challenges. Building clear communication channels with clients also helps in addressing urgent issues quickly and maintaining long-term relationships.

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

AspectFreelance Linux System EngineerFreelance Network Administrator
CertificationsLinux certifications (e.g., LPIC, RHCE)Network certifications (e.g., CCNA, CompTIA Network+)
Work EnvironmentServer management, cloud platforms, Linux-based systemsNetwork infrastructure, routers, switches, firewalls
Industry UsageIT companies, hosting providers, cloud servicesTelecom, enterprise networks, data centers
Search & ComparisonFocus on Linux expertise, server setup, scriptingFocus on network setup, security, troubleshooting

While both roles involve technical skills and working with IT infrastructure, a Freelance Linux System Engineer specializes in Linux server environments, system configuration, and scripting. In contrast, a Freelance Network Administrator focuses on managing and securing network infrastructure. The choice depends on whether your expertise is more aligned with server management or network operations.

How much does a freelance Linux system engineer make?

Freelance Linux system engineers typically earn between $30 and $100 per hour, depending on experience, certifications, and project complexity. Annual income can vary widely based on workload, with experienced professionals earning higher rates for specialized skills like scripting, security, and cloud integration.

Is freelance Linux system engineer still in demand?

Freelance Linux system engineers are in demand due to ongoing needs for system administration, server management, and cloud infrastructure support. Skills in Linux, scripting, security, and familiarity with tools like Docker or Kubernetes increase employability in this flexible role.

What are popular job titles related to Freelance Linux System Engineer jobs in Buffalo Grove, IL?

For Freelance Linux System Engineer jobs in Buffalo Grove, IL, the most frequently searched job titles are:

What cities near Buffalo Grove, IL are hiring for Freelance Linux System Engineer jobs?

Cities near Buffalo Grove, IL with the most Freelance Linux System Engineer job openings:

Freelance Linux System Engineer jobs near you
Infographic showing various Freelance Linux System Engineer job openings in Buffalo Grove, IL as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 17% Part Time, 1% Temporary, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $127,421 per year, or $61.3 per hour.

Senior Systems Engineer - Linux

Apex Fintech Solutions

Chicago, IL • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 15 days ago

Job description

WHO WE ARE
Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash, Betterment, SoFi, Webull, and eToro, amongst many others; collectively, Apex powers access to the stock market for over 22+ million end customers.
At Apex, we are changing how the securities industry operates by reinventing the status quo, which was manual, slow, and accessible only by the ultra-wealthy. We're digitizing and democratizing systems so that everyone has an opportunity to invest.
When you're at Apex, you drive this change. You're part of a global team with a clear vision: to be the trusted technology that powers the digital economy. Our offices in Austin, Dallas, Chicago, New York, Portland, Belfast, and Manila are home to over 1,000 employees.
Together, we're shaping the future of financial innovation. Embrace change. Solve big. Win together. And be G.R.E.A.T. - grit, results, empathy, accountability, and teamwork - with Apex.
We're proud to be recognized for the innovative work we do, the purpose-driven nature of our work, and the collaborative culture we've created. Here are just a few of the many awards we've recently received:
Best Places to Work
2026, 2025, 2024, 2023 - Presented by BuiltIn
WealthTech of the Year
2025 - Presented by US FinTech Awards
The World's Top 250 Fintech Companies
2024 - Presented by CNBC
ABOUT THIS ROLE
We have an exciting opening for a bright, talented and passionate Senior Systems Engineer to join our infrastructure team. In this role you will build, implement and maintain Linux based application systems in a developing DevOps culture. You will collaborate with other members of our team to ensure availability, performance, reliability, and security for our users and clients.
Duties/Responsibilities
  • Operate and continuously improve Linux systems engineering and administration.
  • Deployment and automation of applications via Salt & Ansible.
  • Troubleshoot, diagnose and resolve server events and user incidents relating to Linux systems.
  • Engage in detailed planning, change control and thorough testing to ensure performance, availability and stability.
  • Security related activities, system hardening, patching, vulnerability threat management and mitigation.
  • Manage and deploy system monitoring and management tools such as DataDog, LogicMonitor, Sentinel One, SNMP, etc.
  • Design and create automation to execute tasks and/or processes using scripting languages (Shell Scripting, Powershell, PERL, Python).
  • Create and maintain clear and accurate system documentation.
  • Ensure high performance and reliability of production systems by performing system monitoring and analysis, performance tuning, and troubleshooting system hardware, software, and applications.
  • Partner with Software Engineering teams to develop proactive maintenance plans, schedule maintenance windows, implement the changes, and follow-up.
  • Maintain non-proprietary application stack (Kubernetes, Docker, Kafka, MongoDB, RabbitMQ, Zookeeper).
  • Oversee infrastructure environment (VMWare, Storage, Backups, etc).

Education and/or Experience
  • Bachelor's degree in Computer Science or other technical field (or equivalent work experience) required; advanced degree preferred
  • 5+ years of experience in a similar role with experience in Cloud environments (i.e. cloud migration, cloud management, cloud architecture) and hand on Linux Engineering and Administration.
  • Experience with infrastructure related software, including VMWare, noSQL databases (e.g. MongoDB), containerization (e.g. docker), orchestration (e.g. Kubernetes), SAN storage and backup
  • Experience with code management tools such as Git.
  • Experience with TCP/IP networking troubleshooting and tools
  • Experience with configuration management tools (Ansible and SaltStack).
  • Experience writing and maintaining python/powershell/shell scripts/other scripts that automate tech operations.
  • Experience with Dell server hardware.

Required Skills/Abilities
  • Excellent organizational and follow-up skills with strong attention to detail.
  • Ability learn new skills to keep up with cutting edge technologies and evolving skill sets.
  • Ability to work in a team environment with much collaboration.
  • Ability to operate with a sense of purpose and urgency.
  • Be passionate about troubleshooting, debugging, and automation.
  • Must possess excellent verbal and written communication skills.
  • Expected to respond to alerts and outages; participate in periodic 24x7 on-call schedule.
  • Skill in providing top notch, responsive customer service to internal and external clients.

Work Environment
  • This job operates in a hybrid, office environment 3 days per week.
  • This job may require flexible shifts and days of the week including weekends and holidays, as needed.
  • This job may require travel, as needed (up to 10%).

#IT #mid-senior #full-time #LI-LN1 #APEX
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.
Our Rewards
We offer a robust package of employee perks and benefits, including healthcare benefits (medical, dental and vision, EAP), competitive PTO, 401k match, parental leave, and HSA contribution match. We also provide our employees with a paid subscription to the Calm app and offer generous external learning and tuition reimbursement benefits. At AFS , we offer a hybrid work schedule for most roles that allows employees to have the flexibility of working from home and one of our primary offices.
Salary Range
$115,000-$143,750
The annual base salary range for this position is noted above. Exact compensation offered may vary depending on job-related knowledge, skills, experience, and office location.
EEO Statement
Apex Fintech Solutions is an equal opportunity employer that does not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, marital status, or any other protected characteristic. Our hiring practices ensure that all qualified applicants receive fair consideration without regard to these characteristics.
Disability Statement
Apex Fintech Solutions is committed to creating an inclusive and accessible workplace for all candidates, including those with disabilities. We are dedicated to ensuring equal employment opportunities and providing reasonable accommodations to qualified individuals with disabilities. If you require reasonable accommodations to participate in the application or interview process, please submit your request via the Candidate Accommodation Requests Form. We will work with you to provide the necessary accommodations to ensure your full participation in our hiring process.

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