End User Support Administrator II (Onsite)

Date Posted: 2026-06-25 Country: United States of America Location: US-MT-GREAT FALLS-6932-CUST ~ 6932 Goddard Dr ~ GODDARD (External Site) 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: Top Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 Raytheon Company, Managed by Collins Aerospace 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. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. We are seeking an onsite End User Support Administrator II to fulfill duties as part of a 24/7 operational helpdesk environment located on Malmstrom AFB in Great Falls, Montana.  The guest systems include Microsoft Windows, Linux and vendor appliances.   Active Top Secret security clearance is required day one with SCI eligibility.  What You Will Do:  Provide Tier 1 and Tier 2 technical support for end users in an Enterprise IT environment, including troubleshooting hardware and software issues.  Assist with the configuration, management, and maintenance of end-user devices and applications within Linux and Microsoft environments.  Support and utilize COTs software tools like MECM, BMC FootPrints, and other tools to manage end-user systems and resolve incidents.  Perform system administration tasks such as user account management, password resets, permissions, certificates, and group policy updates.  Assist in maintaining and troubleshooting virtual desktop environments using tools like VMware, ESXi, and VSphere.  Provide support for monthly patch management to ensure end-user devices remain secure and up-to-date.  Collaborate with team members to support software upgrades, tech refreshes, and system updates for end-user environments.  Document technical support activities and maintain accurate records of incidents, service requests, and resolutions in the ticketing system.  Deliver excellent customer service by effectively communicating with end users and resolving issues in a timely manner.  Qualifications You Must Have:     Must have IT experience working in an Enterprise IT environment.    Must be able to work shift schedule to include nights, weekends and holidays.   DoD 8570 IAT Level II certification (Security+ or CISSP preferred) is required on day 1.   Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 2 years prior relevant experience or an Advanced Degree in a related field.   Active and transferable U.S. government issued Top Secret security clearance is required prior to start date with the ability to obtain SCI after start.  U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.   Qualifications We Prefer :  Experience with Microsoft Windows & Server environment to include but not limited to Active Directory, DNS and Group policy, experience with Linux bash, and experience implementing computer security.   Understanding of basic network engineering fundamentals, including: OSI layers, IP addressing, sub-netting, TCP/IP stack, VLANs, DHCP, etc.   Willingness to learn new technologies and applications as required.   TS/SCI Clearance What We Offer: ​ Medical, dental, and vision insurance.  ​ Three weeks of vacation for newly hired employees.  ​ Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option.  ​ Tuition reimbursement program. ​ Student Loan Repayment Program.  ​ Life insurance and disability coverage.  ​ Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection. ​ Birth, adoption, parental leave benefits. ​ Ovia Health, fertility, and family planning.  ​ Adoption Assistance.           ​ Autism Benefit.  ​ Employee Assistance Plan, including up to 10 free counseling sessions.  ​ Healthy You Incentives, wellness rewards program. ​ Doctor on Demand, virtual doctor visits.  ​ Bright Horizons, child and elder care services. ​ Teladoc Medical Experts, second opinion program.  ​ And more!   ​ Learn More & Apply Now! ​ ​ Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. ​ *Please ensure the role type (defined below) is appropriate for your needs before applying to this role.  ​ Onsite:  Employees who are working in Onsite roles will work primarily onsite. T