Explore 1 linux engineer jobs from 1 hiring companies in Athens, TX, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Onsite

Date Posted:2026-04-20Country:United States of AmericaLocation:US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDGPosition Role Type:OnsiteU.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: SecretSecurity Clearance Status: Active and existing security clearance required on day 1At 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.The Integrated Solutions Modeling and Architecture Directorate (ISMA) performs customer focused operational analysis, simulation, mission planning and architecture development activities within Raytheon, an RTX company.  Supporting this mission are teams driving flexible integrated solutions crossing all product areas (sensors, effectors, command and control, logistics and operations), developing tools and methods to evaluate system level studies and visualization based on customer requirements. Raytheon’s Operations Modeling &amp; Analysis (West) is currently seeking a Principal Systems Engineer. Join this visible team and perform highly technical assignments, directly contributing to protecting our nation and our warfighters.  The Advanced Mission Analysis Section’s goals are to provide strong discipline-based Systems Engineering for Operational and Mission Analysis, System Architectural definition, and Advanced sensor performance to deliver overmatch capabilities for our multi-domain national defense customers through modeling, simulation, and analysis.   The team welcomes you to join our tradition of excellence through innovation and collaboration.This is an onsite role located in McKinney, TX.Responsibilities to Anticipate:<ul><li>Develop modeling and analyze solutions across programs, Captures and IRADs</li><li>Support Operations Research functions, including mission and campaign analysis.</li></ul><ul><li>Develop team expertise in Analysis methods, software development, and tools</li><li>Coordinate with Principal Investigators, IPTs, Program Chief Engineer, and Program Management as needed.</li><li>Develop capability delivery plans and lead team execution in an agile framework</li><li>You will provide guidance, direction, mentoring and influencing skills, and foster teamwork, interdependent execution, and growth for earlier in career Engineers.</li><li>Some travel may be required – anticipated 10% domestic</li></ul>Qualifications You Must Have:<ul><li>Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience.</li><li>Experience working in Linux Environments.</li><li>Experience using standard government developed tools including Advanced Framework for Simulation Integration Modeling (AFSIM), Suppressor, Brawler, and similar.</li><li>Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.</li></ul>Qualifications We Value: <ul><li>Understanding of military tactics, techniques, and procedures (TTPs) </li><li>Domain knowledge in Sensors (RADARS, EOIR, etc.), Network Communications, Weapons/Effects (Missiles, Projectiles), Command &amp; Control, and Resource Management is highly desirable. </li><li>Proficiency with scientific computing environments, models, and/or simulations such as the following: MATLAB, Simulink, Python, etc.</li><li>Experience with Military Operations Analysis</li><li>Ability to understand tactics as described by military experts and to represent their employment (verbally, graphically, and in simulations)</li><li>Strong technical writing and oral communication skills  </li><li>  Experience in Numerical Optimization Techniques, Analysis of Alternatives, or Design of Experiments </li></ul>What We Offer<ul><li>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.</li></ul>Learn More &amp; Apply Now!Please consider the following role type definition as you apply for this role.<ul><li>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.</li></ul>Location: McKinney TX: <a href="https://careers.rtx.com/global/en/raytheon-north-texas-location" target="_blank">https://careers.rtx.com/global/en/raytheon-north-texas-location</a>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 107,500 USD - 204,500 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 <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms

Principal Systems Engr Mission Analyst (Onsite)

Principal Systems Engineer - Mission Analyst

8+ years in STEM; Linux; AF SIM tools; DoD Secret security clearance; US citizenship.

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Linux Engineer Jobs in Athens, TX, US

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