Linux / Unix Systems Administrator Jobs in Chicago, IL

21 - 40 of 448 Jobs

Systems Administrator 3Job Title - Systems Administrator 3

Kforce Technology StaffingCompany Name - Kforce Technology Staffing

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Remote or Redmond, Washington, USA

Contract

RESPONSIBILITIES: Kforce has a client that is seeking a highly skilled Systems Administrator 3 in Redmond, WA. Key Responsibilities: * Systems Administrator 3 will maintain, configure, and troubleshoot Ubuntu Linux systems in production and development environments * Administer and manage Perforce (Helix Core) version control, Swarm code review systems, including user management, service configuration via SDP, Helix authentication service (HAS), replication, backups, disaster recovery, and upgr

IT Support AnalystJob Title - IT Support Analyst

Request Technology, LLCCompany Name - Request Technology, LLC

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Chicago, Illinois, USA

Full-time

IT Desk Support Salary: Starting at $90k Location: Chicago, IL Hybrid *We are unable to provide sponsorship for this role* Qualifications Bachelor s degreePrevious experience in the trading industryStrong working knowledge of UNIX environment/Unix commandsLinux desktop support experienceBasic database knowledge (MySQL)Strong scripting knowledge - Python/BashResponsibilities Monitoring and alerting of critical trading system environmentsProactive identification and resolution of production issues

Core Java Developer - W2 onlyJob Title - Core Java Developer - W2 only

Informatic TechnologiesCompany Name - Informatic Technologies

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Chicago, Illinois, USA

Contract

This is not a Fullstack role. This is a Core Java backend role. Qualifications Required: Master or bachelor's degree in computer science or Engineering Have 5+ years of experience in software development Strong Objected Oriented Design and Programming experience Strong trouble shooting and problem-solving skill Deep understanding of Core Java Experience with relational database (Oracle) & SQL Proficient with Jenkins and Chef Proficient with UNIX/Linux and shell scripts

Systems Administrator Intern - Summer 2025Job Title - Systems Administrator Intern - Summer 2025

CACI International, Inc.Company Name - CACI International, Inc.

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Remote

Part-time

Systems Administrator Intern - Summer 2025 Job Category: Intern/Co-op Time Type: Part time Minimum Clearance Required to Start: TS/SCI Employee Type: Part-Time On-Call Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: CACI is seeking a motivated and tech-savvy intern to join our Service Desk team on the F3I program. This internship offers a unique opportunity to gain hands-on experience in IT support and systems administration. This position w

Technology Operations SupportJob Title - Technology Operations Support

Request Technology, LLCCompany Name - Request Technology, LLC

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Chicago, Illinois, USA

Full-time

Technology Operations Support Salary: $80k-$90k + bonus Location: Chicago, IL or Dallas, TX *Third Shift - 10:30pm-7am* Hybrid: 3 days onsite, 2 days remote *We are unable to provide sponsorship for this role* Qualifications Bachelor s degree (or currently enrolled in a bachelor s degree program)3+ years of OS390 JCL and IBM utilities3+ years working in a multi-platform environment including Windows, Linux/Unix and Storage.3+ years working knowledge of an open systems scheduling product (UC4).S

Systems Administrator IJob Title - Systems Administrator I

Thermo Fisher ScientificCompany Name - Thermo Fisher Scientific

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Remote or Middleton, Wisconsin, USA

Full-time

Work Schedule Standard (Mon-Fri) Environmental Conditions Adherence to all Good Manufacturing Practices (GMP) Safety Standards, Some degree of PPE (Personal Protective Equipment) required (safety glasses, gowning, gloves, lab coat, ear plugs etc.) Job Description Summarized Purpose: Join Thermo Fisher Scientific Inc. as a Systems Administrator I. Work in a dynamic and innovative environment. Ensure system stability and efficient performance. Impact the success of analytical software and dedi

Systems Administrator IIIJob Title - Systems Administrator III

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Sparks, Nevada, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Systems Administrator , you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system parame

IT Security Specialist V / Network SecurityJob Title - IT Security Specialist V / Network Security

Innova Solutions, IncCompany Name - Innova Solutions, Inc

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Chicago, Illinois, USA

Contract

A client of Innova Solutions is looking for IT Security Specialist V / Network Security Position type: Contract Duration: Long Term Location: Chicago, IL and Washington, DC Job Description We are seeking a contractor to assist with several project efforts as we work to expand configuration compliance analysis across the network to include newer technologies, such as containerization. This role will include identifying insecure container configurations that may pose a risk as well as detection

Java DeveloperJob Title - Java Developer

Informatic TechnologiesCompany Name - Informatic Technologies

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Chicago, Illinois, USA

Contract

Office: 2 days a week minimum Description The individual will work on feature enhancements, performance improvements, bug fixes and troubleshooting production issues, with a broad range of Clearing and risk applications. The candidate must be self-motivated and eager to learn new technologies. He/she will need good analytical skills and will have the opportunity to work with the end users directly to come up with creative and practical technology solutions for different business problems. He/sh

Systems Administrator 2Job Title - Systems Administrator 2

NightwingCompany Name - Nightwing

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Remote or Annapolis, Maryland, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Systems Administrator 3Job Title - Systems Administrator 3

NightwingCompany Name - Nightwing

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Remote or Annapolis, Maryland, USA

Full-time

System Administrator--Insurance/Policy Admin Systems--REMOTEJob Title - System Administrator--Insurance/Policy Admin Systems--REMOTE

Beacon HillCompany Name - Beacon Hill

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Remote

Contract

Job Title: Systems Administrator - Policy Administration Systems Type: Contract-to-Hire (Temp-to-Hire) Location: 100% Remote (U.S.-based candidates only) Industry: Financial Services - Life, Annuities, Health Insurance Position Overview We are seeking a highly motivated and detail-oriented Systems Administrator to support a blend of mainframe and Java-based applications within our client's Policy Administration Systems domain. This individual will play a key role in the operational support, co

Systems Administrator 3Job Title - Systems Administrator 3

Randstad DigitalCompany Name - Randstad Digital

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Remote or Redmond, Washington, USA

Contract

job summary: We are seeking a highly skilled and motivated Linux System Administrator with at least 5 years of hands-on experience in Linux systems administration and 3 years of Perforce (Helix Core) administration experience. The ideal candidate will also have a strong background in Infrastructure as Code (IaC), particularly using Terraform, to support our growing infrastructure and DevOps initiatives. location: Redmond, Washington job type: Contract salary: $31 - 41 per hour work hours: 8

Systems Administrator IIJob Title - Systems Administrator II

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Plano, Texas, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Systems Administrator II, you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system para

Sr Systems AdministratorJob Title - Sr Systems Administrator

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Lone Tree, Colorado, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Sr Systems Administrator, you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system para

Trade Support EngineerJob Title - Trade Support Engineer

Selby JenningsCompany Name - Selby Jennings

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Chicago, Illinois, USA

Full-time

About the Role: A trading firm in Chicago is seeking a highly skilled Trade Desk Support Engineer to join their dynamic trading operations team. In this critical role, you will provide real-time front-line support to traders, troubleshoot and resolve trading system issues, and collaborate with technology teams to ensure stability and efficiency across the trading stack. Key Responsibilities: Serve as the primary point of contact for front-office trading support, handling live issues and request

System Storage AdminJob Title - System Storage Admin

KyndrylCompany Name - Kyndryl

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Remote or New York, New York, USA

Full-time

Who We Are At Kyndryl, we design, build, manage and modernize the mission-critical technology systems that the world depends on every day. So why work at Kyndryl? We are always moving forward - always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities. The Role As a Storage System Administrator at Kyndryl, you'll solve complex problems and identify potential future issues across the spectrum of storage

Data Solutions ArchitectJob Title - Data Solutions Architect

Innosoul incCompany Name - Innosoul inc

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Chicago, Illinois, USA

Third Party, Contract

Job ID: VU-DSA Hybrid/Local Data Engineer/Data Solutions Architect (12+) with AI/ML, AWS, Kubernetes, data API, Docker, Elastic search, Redis, Vector stores, Python, SQL, Unix/Linux, Graph DB/neo4j, Starburst, RESTful, PostgreSQL, UI/UX, Jenkins, Agile experience Location: Chicago, IL (Onsite once a week) Duration: 12 months Client: Virtusa (End client: Baxter) Required: I94 Travel History/LinkedIn profile Note: We are not looking for data architects who implemented lakehouse, we are looking fo

Data EngineerJob Title - Data Engineer

Innosoul incCompany Name - Innosoul inc

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Chicago, Illinois, USA

Third Party, Contract

Sr. C++ Developer - Chicago, IL or Reston, VA- ONSITE (4 days a week)Job Title - Sr. C++ Developer - Chicago, IL or Reston, VA- ONSITE (4 days a week)

Comcast CorpCompany Name - Comcast Corp

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Chicago, Illinois, USA

Full-time

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we're making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world. Job Summary We are looking for a savvy Engineer 4 to join our growing engineering team in Freewheel.