End User Support Administrator - (Onsite)

Job description

Date Posted: 2026-06-24 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: DoD Clearance: Top Secret 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. 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 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: 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. 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. 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 Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as: Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. Hybrid: Employees who are working in Hybrid roles will work regularly both onsite and offsite. Ratio of time working onsite will be determined in partnership with your leader. Remote: Employees who are working in Remote roles will work primarily offsite (from home). If you live within a reasonable commute of an RTX site with other colleagues you interact with, your manager will discuss whether there is a degree of onsite presence associated with this role. Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility. Requires theoretical to advanced knowledge of work area typically obtained through University Degree combined with experience. Practical knowledge of RTX projects, programs or systems with the ability to make enhancements and leverage in daily work. Typically requires a University Degree or equivalent experience and minimum 2 years of prior relevant experience. Engineering/Other Technical Positions:Typically requires a degree in Science, Technology, Engineering or Mathematics(STEM) and a minimum of 2 years of prior relevant experience unless prohibited by local laws/regulations. 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