Senior Systems Administrator
Envision Innovative Solutions
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 Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems. Manage the daily activities of configuration and operation of IT systems Provide assistance to users in accessing and using IT systems Provide Tier I (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provide support for the escalation and communication of status to agency management and internal customers Optimize system operations and resource utilization, and perform system capacity analysis and planning Provide support for the dispatch system and hardware problems and remains involved in the resolution process Configure and manage UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance. Required Skills Ten (10) years' experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity. Bachelor's degree in technical discipline from an accredited college or university. Five (5) years of additional SA experience may be substituted for a bachelor's degree. Security Clearance Requirement Current/Active TS/SCI with Full Scope Polygraph. Riverstone Enterprise Solutions is an equal‑opportunity employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, veteran's status, age, disability or any other basis prohibited by law. #J-18808-Ljbffr
- ...Constellation Technologies, Inc. seeks a Systems Administrator with active TS/SCI clearance for IT systems support across client/server/storage networks. Applicants must be US citizens with active clearance and have two years of directly related experience in the last...Senior
- ...Legato, LLC is seeking a System Administrator in Aurora, CO. The role involves support for implementing, troubleshooting and maintaining IT systems, with Tier 1 and Tier 2 problem resolution, and guidance to management on escalated issues. A TS/SCI with Polygraph clearance...Senior
$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...Senior- ...Legato, LLC in Aurora, Colorado seeks a System Administrator to support implementation, troubleshooting and maintenance of IT systems. You will provide Tier 1 help desk support, manage daily configuration and operation, assist users, and escalate issues to Tier 2 while...Senior
$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...Senior$210k - $219k
...team member has the opportunity to make a difference. We are seeking a motivated, career, and customer-oriented Principal Systems Administrator to join our team in Aurora, Colorado. This position is onsite. Primary Responsibilities: • Provide support for...SeniorHourly payContract workWork experience placement- Riverstone Enterprise Solutions is looking for a motivated Systems Administrator Level 2 in Aurora, CO, for a hybrid position. Responsibilities include troubleshooting IT systems and providing Tier 1 and Tier 2 support. Candidates must have ten years of relevant Systems...Senior
- Constellation Technologies, Inc. is seeking a highly skilled Systems Administrator to support IT systems administration, troubleshooting, and maintenance across Windows and UNIX environments. A TS/SCI clearance with an active polygraph is required, along with US citizenship...Senior
$125k - $155k
...Responsibilities & Qualifications RESPONSIBILITIES TheSenior Systems Administrator is expected to be able to accomplish the following: Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency...SeniorFull timeContract workTemporary workLocal areaMonday to FridayWeekend workAfternoon shift$155k - $175k
Envision Innovative Solutions is hiring a Systems Administrator Level 2 in Aurora, CO. In this role, you will provide essential support for the implementation, troubleshooting, and maintenance of IT systems, ensuring optimal operations. Qualified candidates will have at...Senior- Sunayu, LLC is seeking a senior Systems Administrator to support, troubleshoot and maintain IT systems across enterprise environments. The role emphasizes day-to-day operations, monitoring, problem resolution, and escalation to ensure reliability and performance of client...Senior
- 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...Senior
$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...Senior- ...impact you'll make, wielding cutting-edge tech to solve real-world challenges. The Role Our client is seeking an experienced System Administrator to manage, troubleshoot, and maintain complex Information Technology (IT) systems across the enterprise infrastructure. You...SeniorFor contractors
$158k - $190k
Overview We are seeking a Senior Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Senior Systems Administrator maintains smooth operation of multi‑user computer...SeniorFull timeContract workTemporary workMonday to FridayWeekend workAfternoon shift$60k - $90k
Meriplex Communications, Ltd. is seeking a Senior Systems Administrator to act as the second tier of support for its Technical Assistance Center. This role involves resolving Level 2 end user issues, providing excellent customer service, and contributing to a collaborative...Senior- Innovative Signal Analysis, Inc. seeks skilled engineering professionals for Junior to Senior System Administrator roles. You will administer Windows and Linux servers, manage AD, PKI, and certificate services, and contribute automation and infrastructure improvements across...Senior
$128k - $214.4k
MANTECH seeks a highly qualified Systems Administrator in Aurora, Colorado to manage and troubleshoot complex IT environments for national security programs. You will work on Tier 2/3 escalation, OS configuration, and network management in a sensitive setting. Required...Senior$177k - $265.6k
Northrop Grumman in Aurora, Colorado is seeking a Staff Systems Administrator to work on revolutionary systems impacting lives globally. This role involves system administration across Linux and Windows platforms, managing VMware technologies, and supporting Cyber Security...Senior- Stanley Reid & Company is seeking an experienced System Administrator for a client in Aurora, CO. You will manage, troubleshoot, and maintain complex IT systems enterprise-wide, handling day-to-day operations, monitoring, and incident resolution for servers, storage, networks...Senior
$158k - $190k
A high-tech solutions company is seeking a Senior Systems Administrator to ensure the smooth operation of multi-user computer systems. Candidates must have an active TS/SCI + CI Poly clearance, along with a CompTIA Security+ certification and experience in systems administration...Senior- Northrop Grumman Space Systems (NGSP) seeks a Systems Administrator - Level 5 for our Aurora, Colorado facility. The role involves Linux and Windows system administration on large government contracts, VMware administration, NAS storage management, and ensuring secure,...Senior
- ...United States Digital Space LLC is seeking a Senior Marketing Operations & Technology Manager to architect and scale the systems powering our marketing engine. This role sits at the intersection of Marketing, Revenue Operations, Systems Engineering, and Analytics, owning...Senior
$100k - $150k
...Infrastructure team is seeking an experienced and motivated Senior IT Infrastructure Administrator to support and maintain our hybrid enterprise... ...innovative and collaborative culture! Talent Development: At 3D Systems, we invest in talent programs to support employees with...SeniorLocal areaWorldwideFlexible hours- WorkScoop IT Specialists (GS‑14, 2210) are being filled through Direct Hire Authority. The role requires U.S. citizenship, Selective Service where applicable, and a background check. The position must meet the 2210 standards and GS‑14 grade. Open positions exist in Denver...SeniorRemote job
- EVONA in Denver, Colorado is seeking a Senior Systems Administrator to support mission-critical infrastructure for aerospace advancements. You will manage enterprise backups, optimize VMware environments, and design Azure infrastructure, enhancing collaborative engineering...Senior
- Dover Networks LLC in Colorado is seeking an experienced Systems Administrator to support IT system implementation, troubleshooting, and maintenance across client/server/storage/network devices. The role includes Tier I and Tier II problem resolution, system configuration...Senior
- Erias Ventures is seeking a Senior System Administrator to provide support for implementation, troubleshooting and maintenance of Information Technology systems across enterprise environments. You will manage IT infrastructure and related processes, supporting day-to-day...Senior
- Northrop Grumman Space Systems is seeking a Systems Administrator - Leel 2 or 3 to join our team in Aurora, CO at Buckley Space Force Base. The role focuses on Linux systems administration within large, classified government contracts, requiring strong communication with...SeniorRelocation
$225k - $255k
...focused on bringing innovative solutions to the difficult mission problems facing our customers. Description We are seeking a Senior System Administrator to provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT...SeniorHourly payTemporary workImmediate startFlexible hours
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