Systems Administrator
FOUR SEA GROUP, INC.
Four Sea Group, Inc. is seeking a part-time Senior IT & Network Systems Administrator to manage Microsoft 365, Azure, AWS, endpoint, network, and collaboration environments. The ideal candidate has 10+ years in IT, security operations, and hybrid on-site support in the Denver area. The role emphasizes independent operation, improving security posture, troubleshooting complex issues, and ensuring reliable IT operations across a small government contractor environment. #J-18808-Ljbffr
- ...York Space Systems was founded to radically improve spacecraft affordability and reliability, transforming, and enabling next-generation... ...team across the board. York Space Systems is seeking a System Administrator whose responsibilities include ensuring compliance with...SuggestedPermanent employmentFor contractorsLocal areaWorldwide
- ...candidate will lead and support developers in complex troubleshooting scenarios, ensuring high availability and performance of critical systems. This role requires strong expertise in Perl, Amazon Web Services, and RedHat Linux, along with a Bachelor's Degree and a current...SuggestedFull time
- ...Four Sea Group, Inc. is seeking a part-time Senior IT & Network Systems Administrator to manage Microsoft 365, Azure, AWS, endpoint, network, and collaboration environments. The ideal candidate has 10+ years in IT, security operations, and hybrid on-site support in the...SuggestedPart timeFor contractors
$100k - $150k
...seeking an experienced and motivated Senior IT Infrastructure Administrator to support and maintain our hybrid enterprise environment, including... ...and collaborative culture! Talent Development: At 3D Systems, we invest in talent programs to support employees with opportunities...SuggestedLocal areaWorldwideFlexible hours$120k - $130k
...Role: Microsoft Dynamics System Administrator Location: Denver, CO Pay: $120,000 - $130,000 / year Duration: Contract-to-Hire Internal Job ID: 10078249 Benefits: This position is eligible for medical, vision, dental, and 401K. Are you looking for an exciting opportunity...SuggestedContract workLocal area- ...Leidos Inc. is seeking a Senior Systems Administrator/Help Desk Engineer to support the Chinook program for IC customers. You will ensure secure, reliable Linux/Windows infrastructures and provide responsive IT support in mission‑critical, fast‑paced environments. You...
- ...years Visa: US Citizen / Green Card CLEARANCE REQUIRED: Current and Active Top Secret Clearance This position is a member of a System Administrator team that performs Tier 1 (Help Desk), Tier 2 (escalation) and Tier 3 (subject matter expert) support for a large 24x7...Full time
- ...individual must have first‑hand experience leading/supporting IBM and RedHat (RHEL) developers through troubleshooting complex Operating System problems, including IBM Power HA (High Availability) and RHEL clustering applications SAN expertise to include evaluation of “need...Full time
$120k - $130k
...Role: Microsoft Dynamics System Administrator Location: Denver, CO Pay: $120,000 - $130,000 / year Duration: Contract-to-Hire Internal Job ID: 10078249 Benefits: This position is eligible for medical, vision, dental, and 401K. Are you looking for an exciting opportunity...Contract workLocal area$80k - $95k
...security, performance, and continuous improvement of company’s IT systems, servers and endpoints, and environments. Salary Range $80K... ...as needed for infrastructure, operations, and security administration. Operate within a service-focused, ticket-based environment...Full timeTemporary workPart timeWork at officeLocal area3 days per week- Are you ready to be the technical backbone of a mission that matters? Leidos is seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting‑edge Agile software development program, Chinook, for an Intelligence Community customer. In this...Contract workShift workDay shiftAfternoon shift
- ...Job Summary and Responsibilities As an IT PACS Systems Administrator, you will be a lead technical expert, responsible for advanced management, maintenance, troubleshooting, and optimization of our PACS and enterprise imaging infrastructure. You will oversee system health...
$99.6k - $166.01k
...of rocket scientists and support employees combined with the systems and processes we use to pull them together. As a ULA employee,... ...meet you! Job Overview & Responsibilities At ULA, the System Administrator 3 - Linux / Cloud is responsible for the administration, maintenance...Hourly payPermanent employmentWork experience placementRelocationFlexible hours$104.94k - $123.23k
...Job Details Description EMERGENCY TECHNOLOGY SYSTEMS ADMINISTRATOR CLOSES ON JULY 17, 2026 at 5:00 P.M. MST REPORTS TO: Technology Manager DIVISION: Technical Services FLSA CLASSIFICAION: Exempt SALARY GRADE : 16 SALARY RANGE : $104,935-$123,226 We are currently seeking...Full timeWork experience placementWork at officeLocal areaShift workNight shiftWeekend workAfternoon shift$75k - $85k
...About the Role We are seeking a mid-level Systems Administrator to join our IT team. This hybrid technical role focuses on core systems administration combined with advanced help‑desk support (approximately 40% systems administration / 60% advanced helpdesk). The successful...Temporary workCasual workRemote workFlexible hoursWeekend workAfternoon shift$60k - $90k
...Meriplex, located in Aurora, Colorado, is hiring a Senior Systems Administrator to provide support for their Technical Assistance Center. This role involves resolving technical issues, managing server maintenance, and delivering exemplary customer service. Candidates should...$60k - $100k
## System Administrator, Tech InfrastructureApplylocations: Denver, Colorado - United States: Saint Petersburg, Florida - United Statestime type: Full timeposted on: Posted Todayjob requisition id: R-0011975**Job Description Summary**The Command Center is the centralized...Work experience placement- ...work-life balance, and structured career development. At Infinity, WE ARE MORE - now, come be more with us! Job Summary: The Systems Administrator is responsible for the maintenance, configuration, and reliable operation of computer systems, servers, and network...Full time
- ...Provider (MSP) supporting small and mid-sized businesses with both IT and advanced cybersecurity solutions. We’re looking for a Systems Administrator with MSP experience who wants to grow their technical skills and build a career in IT and cybersecurity. This role is ideal...Work at officeLocal areaRemote workWork from home
$65k - $80k
...secure, and seamless technology infrastructure to keep our team connected and our patient data secure. Responsibilities Cloud & Systems Administration (M365 & Azure): Manage, configure, and optimize our Microsoft 365 tenant (Exchange Online, SharePoint, Teams, OneDrive);...Work at officeRemote work- ...Rincon Research Corporation is seeking an IT Systems Delivery Administrator for a full-time role in Centennial, CO. You will support technical issues, manage system deployments, and onboard new users. Candidates must have a Bachelor’s degree or equivalent experience,...Full time
- ...Riverstone Enterprise Solutions is seeking a motivated, customer-oriented Systems Administrator Level 2 to join our team in Aurora, CO . This is a Hybrid position. Primary Responsibilities Provide support for implementation, troubleshooting, and maintenance of IT systems...
- ...Position Title: System Administrator III Reports To: Director – Technology Services Direct Reports: No Functional Unit: IT FLSA Status: Exempt Position Type: Full-Time The Company Onward Energy is an independent power platform that owns and operates over 7 GW of utility...Full timeWork at office
$60k - $90k
...Position Summary The Senior Systems Administrator acts as the second tier of support for Meriplex’s Technical Assistance Center (TAC) and reports to a TAC Manager. In addition to working within the TAC’s ticketing system to resolve Level 2 end user issues, this role acts...$78.1k - $97.7k
...service offerings, we touch a patient’s life every second of every day and remain committed to serving more patients worldwide. Systems Administrator Job Summary The ITS Systems Administrator is a member of the ITS Systems Operations team and, under general supervision,...Work at officeWorldwide$64.23k - $74.75k
...Job Qualifications: Computer Hardware, Information Systems, Information Technology (IT) Systems Job Description We are GDIT. The people... .... At GDIT, people are our differentiator. Our Systems Administrator Technician supports and manages the responsibilities of the successful...Temporary workImmediate startRemote workWorldwideFlexible hours$99.3k - $208.6k
...Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: None Type of Travel: Local Anticipated Posting End: 10/31/2026 The Opportunity: CACI...Full timeContract workWork experience placementLocal areaImmediate startRemote workFlexible hours$155k - $175k
...agility of a small company with the impact of a big mission. Riverstone is seeking a motivated, career, and customer‑oriented Systems Administrator Level 2 to join our team in Aurora, CO. This position is onsite. Primary Responsibilities: Provide support for...Hourly payContract workWork experience placement$105k - $130k
...Systems Administrator Job ID: 2026-9798 Contract Type: Full Time W/Benefits Ret Match Primary Location: US-CO-Denver Secondary Location: US-CO-Colorado Springs Security Clearance: TS/SCI Overview/ Job Responsibilities Position is contingent upon contract award and funding...Full timeContract workWork at officeNight shift$60k - $90k
...The Senior Systems Administrator acts as the second tier of support for Meriplex’s Technical Assistance Center (TAC) and reports to a TAC Manager. In addition to working within the TAC’s ticketing system to resolve Level 2 end user issues, this role acts as the escalation...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Systems Administrator. Be the first to apply!

