Principal Systems Administrator
Envision Innovative Solutions
Riverstone Enterprise Solutions, an Envision Innovative Solutions Company, delivers mission-focused technology solutions to the Intelligence Community. Since 2008, we have supported critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions. Our engineers work in a collaborative, zero-bureaucracy environment where expertise is valued, ideas are heard, and contributions directly drive mission success. Your adventure begins now—unleash your potential at Riverstone, we combine the agility of a small company with the impact of a big mission. Riverstone is seeking a motivated, career, and customer-oriented Systems Administrator Level 3 to join our team in Aurora, CO . Primary Responsibilities Provide support for implementation, troubleshooting, and maintenance of IT systems 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 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 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 remain involved in the resolution process Configure and manage UNIX and Windows (or other applicable) operating systems and install/load operating system software, troubleshoot, maintain integrity and configure network Required Skills 15 years' experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is required Bachelor's degree in technical discipline from an accredited college or university. Five (5) years of additional Systems Administrator experience may be substituted for a bachelor's degree Security Clearance Requirement Current/Active TS/SCI with Full Scope Polygraph Equal Opportunity Statement 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 Envision Innovative Solutions
- Legion Technical Solutions LLC in Aurora, Colorado, is seeking a Principal Software Engineer to enhance existing software systems. The successful candidate must have significant experience in software engineering, particularly with object-oriented technologies. This position...Principal
$98.9k - $148.3k
...incredible opportunities to work on revolutionary systems that impact people's lives around the world... ...Grumman Classified Solutions CIDO team is seeking a Principal Computer Systems Analyst (Linux/AWS Systems Administrator) to support information system lifecycle...PrincipalFull timeInternshipWorldwideRelocationFlexible hoursShift workWeekend work- ...Leidos is seeking an IT Engineer with Microsoft Enterprise Systems Administrator experience to join our team in support of a Federal Intelligence Agency contract located in Alice Springs, AUS. Responsibilities Provide Tier 2 support maintaining multiple large enterprise...SuggestedContract workTemporary workRemote work
$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...SuggestedFull timeContract workTemporary workMonday to FridayWeekend workAfternoon shift- 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...Suggested
- A leading recruiting firm is seeking an experienced System Administrator in Aurora, CO. The ideal candidate will manage complex IT systems, providing both Tier 1 and Tier 2 support. Candidates must have 15 years of relevant experience, a technical degree, and familiarity...
$69.72 - $79.33 per hour
EverWatch, located in Aurora, Colorado, is seeking an experienced System Administrator to support mission-critical enterprise IT systems. The ideal candidate will have over 10 years of experience in IT system support and expertise in both UNIX and Windows environments....Hourly pay- ManTech is seeking a motivated System Administrator to join our team in Denver, Colorado. This role involves managing IT system infrastructure, providing Tier I and Tier II support, and configuring LINUX and Windows operating systems for optimal performance. The ideal...
- Envision Innovative Solutions is seeking a motivated Systems Administrator Level 3 for their Aurora, Colorado location. The role includes supporting implementation and maintenance of IT systems, managing configurations, and providing user support. Ideal candidates will...
$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...- ...clearance with Polygraph. Ideal candidates should possess expertise in Windows and Linux administration, along with strong troubleshooting skills. The successful candidate will manage systems, assist with user issues, and ensure optimal performance across various platforms....
- RealmOne is seeking a Level 2 System Administrator to join our team in Aurora, Colorado. This role involves providing Tier 1 and Tier 2 support, troubleshooting issues, and managing UNIX and Windows operating systems. Candidates must have ten years of experience as a System...Flexible hours
$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...- Northrop Grumman Space Systems is looking for a Sr Principal Hardware Integration and Test Engineer (Level 4) or a Staff Hardware System Test and Integration Engineer (Level 5) to join their team in Aurora, Colorado. This position requires a relevant STEM degree and a DoD...Principal
$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...$104k - $111k
...Overview We are seeking a Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Systems Administrator maintains smooth operation of multi‑user computer systems,...Contract workTemporary workMonday to FridayWeekend workAfternoon shift- ...private lenders that originate high credit quality loans. Our principals bring deep expertise across real estate lending, capital... ...average of more than 500 families every month. Role Overview The System Administrator supports the day-to-day operation, maintenance, and...Work at office
- ...excellence. Position Requirements: Provides support for implementation, troubleshooting, and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems, including day-to-day...Flexible hours
- Avenue Technologies Company is seeking a Principal Software Engineer in Aurora, Colorado. This role involves designing, developing, and maintaining software for advanced test equipment used across engineering labs. Candidates must have a BS degree in Computer Science or...Principal
$80.75k - $109.25k
...strengthen the partnerships that move our work forward. Join a team where your expertise fuels the systems that keep communities running! Position Summary The IT Systems Administrator manages and supports the organization’s IT infrastructure across on‑premises and cloud...Full timeFor contractorsWork at officeLocal areaImmediate startRemote workWork visa$100k - $200k
...quo. For over 20 years, our team provides expertise in network, system engineering and both offensive and defensive cybersecurity... ...Position We are currently seeking a Linux / UNIX / Windows System Administrator that will provide Tier 2 technical support to maintain high...Temporary workWork experience placementLocal areaFlexible hours$72.4k - $103.4k
...Job Duties and Responsibilities The system administrator provides expert-level support, product management, training, and technical expertise for Google Workspace and Proofpoint. Candidates must be willing to participate in at least one in‑person interview. Serve as the...Contract workFlexible hours$56k
...maintenance, configuration, and reliable operation of computer systems, network servers, and virtualization Install and upgrade... ...system commands/utilities Familiarity with most basic system administration tools and processes for example, ability to boot/shut down a...Full timeWeekend work- ...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...For contractors
- ...MANTECH seeks a motivated, career and customer-oriented System Administrator to join our team in Denver, Colorado In this role, you will manage IT system infrastructure and day-to-day operations, including the monitoring and resolution of issues across clients, server...Local 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 supporting...Full timeTemporary workPart timeWork at officeLocal areaRemote work2 days per week3 days per week- 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...
$149.3k - $234.6k
Northrop Grumman Corp. (AU) in Aurora, CO, is looking for a Sr. Principal Cyber Software Engineer. The role involves designing and developing CNO tools, engaging in all aspects of documentation, and participation in government software procedures. Successful candidates...Principal- AngloGold Ashanti North America is seeking a Senior Principal Geologist to oversee target generation and opportunity identification across the United States and North America. The successful candidate will lead evaluation of exploration opportunities, monitor industry activities...PrincipalFlexible hours
- A global staffing firm in Englewood is seeking a Systems Administrator responsible for managing core systems and ensuring their reliability. The ideal candidate will have 8-10 years of experience and a bachelor's degree in a technical field. Responsibilities include system...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Principal Systems Administrator. Be the first to apply!
- system admin Aurora, CO
- application system administrator Aurora, CO
- server administrator Aurora, CO
- systems administrator Aurora, CO
- IT administrator Aurora, CO
- IT infrastructure administrator Aurora, CO
- enterprise administrator Aurora, CO
- computer systems administrator Aurora, CO
- senior principal cloud computing engineer Aurora, CO
- senior principal scientist Aurora, CO

