System Administrator- Must have TS/SCI Poly clearance
$68.9k - $131.1kRaytheon Co
Date Posted: 2026-07-29 Country: United States of America Location: US-CO-AURORA-S75 ~ 16800 E Centretech Pkwy ~ BLDG S75 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: TS/SCI with CI Poly - Current Security Clearance Status: Active and existing security clearance required on day 1 At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon Digital Technology is an organization that delivers for all of those who defend us by distributing capabilities, solutions, and processes to ensure alignment around program priorities supporting program execution. We support critical programs with unclassified, classified, and proprietary information system capabilities and create end-to-end solutions to solve complex digital infrastructure problems. To achieve the mission of our customers, we strive to empower people with authority and responsibility and provide access to tools and resources that enable each employee to continuously improve their technical and leadership competencies while achieving professional and personal goals. What You Will Do: Responsibilities include the monitoring and support of systems that are operational 24x7 and which occasionally require work effort beyond standard work hours. You will perform routine and preventative maintenance, troubleshooting, root cause analysis, accurately document issues in logging and discrepancy reporting tools. The role will support system engineering groups as needed for ongoing analysis and integration efforts, design/implement updates to satisfy requirements flowed down from engineering, and upgrade existing COTS products to targeted baselines. This position serves as a help desk team member in a customer-facing environment, so the ability to communicate effectively and respectfully with other teams and with the customer is of utmost importance, as you will be expected to uphold our excellent reputation. 100% onsite in Aurora, CO or Richardson, TX Qualifications You Must Have Typically requires a bachelor’s degree and a minimum of 2 years or prior relevant experience Active and transferable U.S. government issued TS/SCI with poly security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance (on start date) Must have an active DoD 8570 IAT Level 2 certification (or higher) on start date. IAT Level 2 requires one or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND Experience with Linux RedHat and Windows Experience with virtual/cloud computing technologies such as: Citrix, VMware, and/or Amazon Web Services (AWS) Qualifications We Prefer: The ability to work effectively with frequent and direct customer interaction in a real-time operational environment The ability to work under pressure in restoring high priority systems back to operations Working Cloudera experience Ability to navigate, debug, and modify programs in an advanced programming language Experience with storage products from Oracle, Dell/EMC (e.g., Isilon/PowerScale), and/or NetApp Experience presenting technical information to customers, clients, and/or internal audiences Working knowledge of thin-client technologies Relocation Eligibility What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 68,900 USD - 131,100 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms: Click on this link to read the Policy and Terms #J-18808-Ljbffr Raytheon
$68.9k - $131.1k
...government issued security clearance is required prior to start... ...clearance Security Clearance Type: TS/SCI with CI Poly Current Security Clearance... ...compensation programs You Must Have: Typically requires a... ...in restoring high priority systems back to operations Working...SuggestedTemporary workWork experience placementWorldwideRelocationFlexible hours- A technology solutions firm is seeking a Systems Administrator to ensure smooth operation of multi-user computer systems... ...administration, and providing backup recovery. Applicants must possess an Active TS/SCI + CI Poly clearance, and 8-10 years of relevant experience or a...Suggested
$150k - $175k
Position: Senior Linux Systems Administrator (TS/SCI with Full Scope Poly Required) Location: Aurora, CO Job Id: RC-SA... ...Administrator Location: Aurora, CO Clearance: Active TS/SCI with FSP Polygraph... ...support this program, you'll need to have expert level experience with the...SuggestedFull timeRelocation package- Sunayu, LLC is seeking a senior Systems Administrator to support, troubleshoot and maintain... ...mobile devices. The candidate should have extensive UNIX/Windows experience, Cisco routing/switching expertise, and a TS/SCI w/ Polygraph clearance. #J-18808-Ljbffr SUNAYUSuggested
$177k - $265.6k
...Aurora, Colorado is seeking a Staff Systems Administrator to work on revolutionary systems impacting... ...Cyber Security efforts. Candidates must have a Bachelor's degree alongside... ...IT experience and active Top Secret/SCI clearance. Compensation includes a salary range...Suggested$115k - $170k
...Company in Aurora, CO is seeking System Administrators at Level 1 and Level 2 to... ...benefits package. Candidates should have 5+ years for Level 1 and 10+ years... ...technical bachelor’s degree, and TS/SCI with FS Poly clearance. Applicants must be eligible for the required...$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...- Our work depends on an Infoblox Systems Engineer joining our team to support Government activities... ...Excellent verbal and written communication skills Must have an Active TS/SCI with a willingness to obtain and maintain a CI Poly. Essential Network Security (ENS) Solutions,...Temporary workRelocation package
- DeNOVO Solutions seeks a Senior Linux Systems Administrator to support an advanced modernization project... .... Qualified candidates will have 15+ years of DOD/IC or private sector experience, an active TS/SCI with Full-Scope Poly, a BS in a technical discipline, and a...
- ...country from threats. Job Description VIRTUALIZATION SYSTEMS ADMINISTRATOR YOUR IMPACT Own your opportunity to support... ...requirements (e.g., Security+ CE, etc.) CLEARANCE: Active TS/SCI clearance with a favorable polygraph Hands on experience...
- ...Solutions is looking for a motivated Systems Administrator Level 2 in Aurora, CO, for a... ...and Tier 2 support. Candidates must have ten years of relevant Systems Administration... ...experience is needed. An active TS/SCI with Full Scope Polygraph clearance is required. #J-18808-Ljbffr...
- ...cleared role in Aurora, CO, requiring TS/SCI with poly and active clearance on day one. Onsite work 100% in... ...certification knowledge. Ideal candidates will have a bachelor’s degree, 2+ years of... ..., Citrix, VMware, AWS, and storage systems. A broad benefits package...
- 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...
- Wyetech seeks an experienced Systems Analyst to support IT system implementation, troubleshooting... ...operations, and escalation management. A TS/SCI clearance with poly is required along with a technical degree. Candidates should have extensive SA background in similarly...
$64.23k - $74.75k
...Hardware, Information Systems, Information... ...Description: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph... ...differentiator. Our Systems Administrator Technician... ...Clearance Level: TS/SCI with Polygraph... ...what our employees have told us they value...Temporary workImmediate startRemote workWorldwideFlexible hours- General Dynamics Information Technology is seeking a Systems Administrator Technician in Colorado Aurora. The role involves maintaining... ...(CompTIA Security+ CE minimum). US citizenship and TS/SCI with Polygraph clearance are required. #J-18808-Ljbffr General Dynamics...
- ...projects Requirements Must have High School Diploma and 1... ...experience Must have an Active TS/SCI ; willing to obtain a CI Poly Experience performing... ...Apps and Desktops 7 Administration On-Premises and in Citrix... ...Cyber and Network Security, System Engineering, Program/...Temporary workRemote workRelocation package
$150k
...and the Intelligence Community. Must have an active (or ability to obtain and maintain) TS/SCI with CI Polygraph Job... ...obtain) TS/SCI with CI Polygraph Clearance U.S. Citizen Prepare, maintain... ...degree such as Masters in Business Administration Strong understanding of...Contract workFor contractorsFor subcontractorWork at officeLocal area- ...) is seeking a Linux/Microsoft Systems Administrator to join our team in support of... ...administration experience ~ TS/SCI with Polygraph is required. ~ Candidate must possess an appropriate and current... ...candidates are expected to have related experience and knowledge...Contract workTemporary workRemote work
$125k - $190k
...Overview This position is for a Staff Systems Engineer. You will be working... ...onboarding Required Qualifications Active TS/SCI U.S. Government Security Clearance Bachelor’s degree in computer... ...Clearance with an Adjudicated CI Poly Demonstrated interpersonal skills...Temporary workWork at officeVisa sponsorshipRelocation packageFlexible hours- Solidus Technical Solutions, LLC is seeking a Staff Systems Engineer to provide enterprise-wide systems engineering and integration... ...The role requires onsite work in Aurora, CO and an active TS/SCI CI Poly clearance. The position involves managing projects or processes with...Flexible hours
- Raytheon is seeking a resilient systems specialist to monitor and support critical 24x7 environments at our Aurora, CO site. The role requires active TS/SCI clearance with poly and U.S. citizenship, plus DoD 8570 IAT Level 2 certification on start date. You will collaborate...
$155k - $175k
Envision Innovative Solutions is hiring a Systems Administrator Level 2 in Aurora, CO. In this role,... .... Qualified candidates will have at least 10 years of experience in a... ...The position requires a current Active TS/SCI clearance. The projected salary range is $155,0...$115k - $170k
System Administrator (multiple levels) to 170k, FS Poly Aurora, CO Role Overview We are seeking System Administrators... ...dispatch system problems. Clearance Requirements TS/SCI with FS Polygraph is required... ...or accept CCAs. Applicants must have the required clearance for consideration...- Location: Annapolis Junction, Maryland Category: Systems Administration Travel Required:No Remote Type: No Clearance: TS/SCI w/ Polygraph Position Requirements Provides... ...reliability and performance. This candidate should have the skills and experience necessary to support...Temporary workWork experience placementImmediate startRemote work
$48k - $83k
...as the DOE, NNSA, the Department of Defense and the Intelligence Community. Job Description Must have an active (or ability to obtain) a TS/SCI with Polygraph Security Clearance Manage material orders with oversight from Material Management Monitor and report supplier's...For contractorsLocal area$75k - $260k
...roles, from entry-level to senior positions. Key responsibilities include supporting systems engineering operations and mentoring technical teams. The roles require an active TS/SCI w/Poly and offer a competitive salary range from $75,000 to $260,000, along with...- ...in Aurora is seeking a Principal Systems Engineer to apply Model-Based... ...team. The ideal candidate will have a degree in STEM, at least 8 years... ...experience in satellite systems, and must possess active U.S. citizenship with a TS/SCI clearance requirement. #J-18808-Ljbffr...
- ...PTO, Holiday etc... Principal Systems Engineer to work in a... ...Colorado. Qualifications You Must Have Typically requires a degree... ...transferable U.S. government issued TS/SCI is required prior to start... ...are eligible for a security clearance. #J-18808-Ljbffr Associates...Full timeContract work
- ...s agile, tech-savvy teams have tackled complex missions for... ...is seeking an experienced System Administrator to manage, troubleshoot,... ...and software integration. Clearance Requirements TS/SCI with FS Polygraph is... ...accept CCAs. Please note, you must have the required clearance...For contractors
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