principal linux systems administrator Jobs in chicago, il

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Senior Infrastructure Engineer

U-Haul International, Inc

Remote or Phoenix, Arizona, USA

Full-time

Location: 2727 N Central Ave, Phoenix, Arizona 85004 United States of America U-Haul is seeking an experienced Senior Infrastructure Engineer with a strong background in Kubernetes, Automation, Linux, Scripting, and Load Balancing. Primary Responsibilities: Take ownership of assigned projects and actively drive them to completion. Leverage new and existing technologies to help Teams achieve their automation goals. Proactively evaluate the security of new and existing solutions. Work with secur

Security Incident Response

Lincoln Financial Group

US

Full-time

Alternate Locations: Work from Home Work Arrangement: Remote : Work at home employee Relocation assistance: is not available for this opportunity. Requisition #: 74030 The Role at a Glance This position continuously monitors the alert queue; investigates security alerts; monitors health of security sensors and endpoints; collects data and context necessary to initiate IR response. In addition, the analyst will be responsible for maintaining multiple security technologies for detecting and p

Senior System Software Engineer, NCCL - Partner Enablement

NVIDIA Corporation

Remote or Santa Clara, California, USA

Full-time

NVIDIA is leading the way in groundbreaking developments in Artificial Intelligence, High Performance Computing and Visualization. The GPU, our invention, serves as the visual cortex of modern computers and is at the heart of our products and services. Our work opens up new universes to explore, enables amazing creativity and discovery, and powers what were once science fiction inventions from artificial intelligence to autonomous cars. We are the GPU Communications Libraries and Networking tea

Manager of Linux Operations and Administration

Request Technology, LLC

Chicago, Illinois, USA

Full-time

We are unable to sponsor for this permanent full-time role** Position is bonus eligible Prestigious Financial Company is currently seeking a Manager of Linux Operations and Administration. Candidate will lead and oversee our Linux infrastructure operations team. This role is responsible for ensuring the stability, performance, and security of all Linux-based systems and services, managing day-to-day operations, and driving strategic initiatives to optimize infrastructure performance and reliabil

Systems Sr Administrator

Unisys

Remote

Contract

CompuGain is an Information Technology and Business Consulting firm providing project-based solutions, software solutions and professional staffing services. -"Those authorized to work in the United States are encouraged to apply. We are unable to sponsor currently. Position: Systems Sr Administrator Location: Remote Length: Long Term Key Responsibilities Responsible for supporting the functionality and efficiency of one or more operating systems.* Lead teams in the delivery of second and/or th

Systems Administrator

Unisys

Remote

Full-time, Contract

Note: This role requries to be .UNISYS Location: US Remote Type: Long- TERM contract Job Title: Systems AdministratorResponsible for supporting the functionality and efficiency of one or more operating systems. Deliver second level remote hardware and software/OS support services to clients to resolve product use and multi-product/platform problems and questions relating to enterprise systems, networks and application software, as well as desktop applications. Perform remote installation of appl

Senior Full Stack Developer Lead - Inventory Management - JERSEY CITY

Citi

Remote or Jersey City, New Jersey, USA

Full-time

As part of the Inventory Management Applications Suite, Senior Application Developer is responsible for leading very high volume / low latency enterprise multi-tiered Java applications to provide cutting edge solutions for the Stock Record and related Application in the Capital Markets domain while following the industry best practices and Citi standards. The primary responsibility will be leading the design and development and providing Level 3 support for these applications. Coordination betwe

Software Engineer - IBM MQ Administration

Request Technology, LLC

Chicago, Illinois, USA

Full-time

NO SPONSORSHIP Software Engineering: IBM MQ Infrastructure Administration (Middleware) SALARY: $150k - $165K plus 15% bonus LOCATION: /Chicago, IL 3 days onsite hybrid SELLING POINTS: IBM MQ Administration end-to-end maintenance and support messaging infrastructure IBM MQ in containerized Docker Kubernetes OpenShift Infrastructure modernization We are seeking an experienced and motivated IBM MQ Administrator to join our dynamic Infrastructure team. The successful candidate will be responsible fo

Principal - ForgeRock Engineer

Request Technology, LLC

Chicago, Illinois, USA

Full-time

NO SPONSORSHIP Principal, Identity and Access Management ForgeRock SALARY: $160k - $170k LOCATION: CHICAGO Hybrid 3 days onsite Looking for a principal in ForgeRock Identity Suite using OAuth methodologies. Linux, Windows environments, active directory, platform identity gateways access manager and directory. This position has an emphasis on integrating internal applications with ForgeRock Identity suite using OAuth methodologies and custom scopes, coordinating directly with application develop

Oracle E-Business Applications DBA

Rishabh Software Pvt. Ltd

Chicago, Illinois, USA

Contract

Job Title: IT - Oracle E-Business Applications DBA Location: Chicago, IL Duration: 6-9 Months Work Mode: Hybrid Duties and responsibilities Installs, patches, upgrades, configures, tunes, and maintains the Oracle E-business Suite R12.1/12.2 and 19c Oracle databases. Collaborate with system and network administrators. Install system enhancements and assist in hardware, software, and data utilization analysis to ensure maximum efficiency. Participate in the design, implementation, and testing o

Remote System Admin | Linux Engineer | Unix Engineer or Windows System Engineer

Diversified Technology, Inc.

Remote

Third Party, Contract

Linux Systems Engineerwith experience inAdministrationfor a one year(with possibility of extension) Must work on our W2 The Systems Engineer ESP supports our Enterprise Server Platforms. The incumbent must have knowledge of server(Windows or Linux) administration, configuration, troubleshooting, security, scripting, and networking. Strong communication and documentation skills are required as the candidate will typically be working with customers for support and new initiatives. Principal Acco

Senior Datadog Administrator

Charter Global, Inc.

Remote or Washington, District of Columbia, USA

Contract

Title: Senior Datadog Administrator Duration: 9 Months+ Location: Washington, DC (Remote Job) Responsible for software tool administration for systems and applications monitoring tools. Expertise with at least one of the Monitoring tools like DataDog and Service Now. DataDog Administration experience on Linux platform to instrument Java based applications running on Tomcat Application Server. Configuration experience in Infrastructure Monitoring, Network Monitoring and Centralized Logging. O

DataDog Systems Monitoring Engineer / DataDog Admin

TalTeam

Remote

Contract, Third Party

Position : Systems Monitoring engineer/ Data Dog Admin Location : Washington DC Remote Direct Client Requirement Notes from Manager : Since the present focus is on these 2 initiatives, the HM is mainly looking for candidates with solid Data dog and AWS experience. And if they have Data Dog integration and monitoring experience within ServiceNow, they will be assigned to the specific role. But DD and AWS is the main focus. The HM is looking for resources with extensive experience with Data Dog t

IBM Verify

intiGrow

Remote

Contract

100% Remote Job descriptionWe are seeking an experienced IBM Verify Access (formerly IBM Security Access Manager - ISAM) and Identity Governance and Administration (IGA) Engineer to design, implement, and maintain secure access management and identity governance solutions. In this role, the candidate's ability to take in requirements on an agile basis and be able to work autonomously with a high level perspective is a must. As an ideal candidate, you are someone who has repeatedly performed IAM/

SOC Resource - Security Analyst 4 roles

Prudent Technologies and Consulting

Remote

Contract

SOC Resource - Security Analyst 4 roles Remote contract for 6-12 months Someone in Nearshore to US - preferably south of the US Start Date: As soon as possible. Coverage Goal: True 24x7 SOC coverage Scheduling Flexibility: Initially aligned to EST / New York business hours.Resources will gradually be rotated into evening/weekend shifts based on gaps.Onboarding can be staggered We are seeking four contract Security Analysts to restore full 24x7 Security Operations Center (SOC) coverage through

Offshore - Remote/ India based - OpenStack Engineer (VMware to OpenStack Migration)

Nasscomm, Inc.

Remote

Contract, Third Party

Role: OpenStack Engineer Location: Remote (Offshore) Duration: (6 Months) Contract Client AHEAD JOB DESCRIPTION: We are seeking an experienced OpenStack Engineer to lead our infrastructure transformation initiatives, focusing on VMware-to-OpenStack migration and management of large-scale cloud deployments. The ideal candidate will bring technical depth across OpenStack components while demonstrating strong communication and leadership skills. Key Responsibilities: Architect and implement VMware-

Information Security Engineer T3 - Splunk Content Developer - Remote

Emergere Technologies

Remote

Contract

Role: Information Security Engineer T3 - Splunk Content Developer Duration: 07/21/2025 to 07/20/2026 Location: Herndon, VA (Remote) Description: Candidate can be remote but if within 30 miles of Herndon office they will be required to be in office 3 days a week (Could increase based on business needs). *Possible Convert to hire* Content Development & Optimization Build, maintain, and optimize Splunk dashboards, alerts, and reports that give teams real-time, actionable visibility. Create, modify

Production Support Lead

LTIMindtree

Remote

Full-time

About Us: LTIMindtree is a global technology consulting and digital solutions company that enables enterprises across industries to reimagine business models, accelerate innovation, and maximize growth by harnessing digital technologies. As a digital transformation partner to more than 700+ clients, LTIMindtree brings extensive domain and technology expertise to help drive superior competitive differentiation, customer experiences, and business outcomes in a converging world. Powered by nearly 9

Lead Systems Admin (DataDog Admin)

Dexian DISYS

Remote

Contract, Third Party

Position: Lead Systems Admin Location: 100% Remote Job Type: 9 Months Contract (Long-term role with extensions) Hiring Manager Notes: Straight contract role.. Preference for someone local who can go to the office when needed but open to those who are not local as long as they can support EST hours. Using Datadog as primary tool and BigPanda (nice to have) for centralized Event Mgmt. First initiative: Datadog is in GovCloud now and plans to move to commercial Cloud within Datadog. Second init

IAM

cyberThink, Inc.

Remote

Contract

IAM Consultant Remote Responsibilities: Ability to administer and provide support for IAM and Fraud prevention applications such as ForgeRock, ThreatMetrix, FeatureSpace, components policy servers, databases, and directories Experience in setup, configuration, and management of Policy servers, Web agents, Secure Proxy Server, and Federation Develop and support federations with internal systems and external organizations Implement changes through multiple environments utilizing the Change Manage