{"id":3359649,"url":"https://alion.io/job/rtx-principal-software-engineer-7","title":"Principal Software Engineer","company":{"id":1162,"name":"RTX","domain":"rtx.com","url":"https://alion.io/company/raytheon-technologies","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":81,"open_postings":452,"ghost_share":0,"stale_share":0.73,"repost_share":0.02,"time_to_fill_p50_days":26,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["El Segundo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":118300,"max":224900,"currency":"USD","period":"year","gross":null,"usd_annual":224900},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"gRPC","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Red Hat","optional":false},{"name":"RTOS","optional":false},{"name":"Scrum","optional":false},{"name":"Sensor Fusion","optional":false}],"status":"live","first_seen_at":"2026-10-27T20:51:48Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-29T13:14:21Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Date Posted:\n2026-10-27\n\nCountry:\nUnited States of America\n\nLocation:\nUS-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01\n\nPosition Role Type:\nOnsite\n\nU.S. Citizen, U.S. Person, or Immigration Status Requirements:\nActive 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\n\nSecurity Clearance Type:\nDoD Clearance: Secret\n\nSecurity Clearance Status:\nActive and existing security clearance required on day 1At 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.\nRaytheon 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 freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.\nWhat You Will Do:\nAs a member of the team, you will work with cutting-edge technology and contribute to programs that safeguard lives and uphold the freedoms we cherish. At Raytheon, our exceptional engineers are empowered to achieve excellence and inspired to innovate, all within an inclusive environment that values work-life balance as a core principle, not just a catchphrase.\nResponsible for some or all of a Software product, contributing as a software team member and possibly leading a small software team.\nResponsibilities spanning the full lifecycle of product development, from architecture and design, through integration, test, and field support.\nQualifications You Must Have:\nTypically requires a Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and 5 years of relevant software experience.\nExperience in programming languages such as C++, Java, Python or similar.\nExperience across SDLC including software integration & testing, and debugging tools.\nExperience using version control tools like Git.\nAble to obtain and maintain a U.S. government issued security clearance as and when required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.\nQualifications We Prefer:\nProven self-motivated problem solver who can look at a situation, identify gaps or issues, and take initiative to resolve them (technically, with process, and with documentation)\nExcellent verbal and written communication skills.\nAbility to work collaboratively in a team environment.\nProficiency with Object-Oriented Design (OOD) principles and practices.\nProficiency with Agile lifecycle process including Scrum, Continuous Integration and Test-Driven Development Methodologies\nExperience developing on Red Hat Linux or equivalent OS\nKnowledge of DevSecOps practices, including CI/CD pipelines and secure software development methodologies\nExperience leveraging Generative AI and Machine Learning to improve productivity, collaboration, and performance\nExperience with gRPC and Protobufs\nExperience with Linux, VxWorks, INTEGRITY, or other RTOS\nFamiliarity with Open Systems Architectures and modular design principles.\nDomain knowledge in one or more of the following areas: Radars, EO/IR, EW, Network Communications, Datalinks, Platform Integration, Weapons/Effects (Missiles, Projectiles), Command & Control for Fire Control and Surveillance applications, Multi-Domain Airborne Sensor Fusion and Tracking experience\nWhat We Offer:\nOur values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. Some of our employee benefits include:\nThe RTX Employee Scholar Program pays for tuition, academic fees and books for undergraduate and graduate study at approved educational institutions\n401(k) plan that offers a broad range of investment options. For eligible employees, we will match up to 4% of your savings to help you build financial security\nFlexible work schedules and paid time off to accommodate work/life balance including many with every other Friday off\nLearn More & Apply Now!\nPlease consider the following role type definition as you apply for this role.\nOnsite: 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.\nThis position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA , an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm\nPlease ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:\nOnsite: 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.\nHybrid: 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.\nRemote: 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.\nCandidates 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.\nRequires advanced to expert knowledge of work area typically obtained through advanced education combined with experience.\nMay have broad knowledge of project management. Requires substantial knowledge of RTX projects, programs or systems in order to provide enhancements within job area.\nTypically requires: A University Degree or equivalent experience and minimum 8 years prior relevant experience, or An Advanced Degree in a related field and minimum 5 years experience\nEngineering/Other Technical Positions: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations.\nAs 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.\nThe salary range for this role is 118,300 USD - 224,900 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.\nPrivacy Policy and Terms:\nClick on this link to read the Policy and Terms","description_format":"text","description_chars":9335,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Flexible schedule","Life insurance","Parental leave"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Missiles","Air Defense","Defense Manufacturing","Avionics & Flight Control"],"lifecycle":[{"event":"open","at":"2026-10-27T20:51:48Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":1,"expected_fill_days":26,"reasons":["conf:0","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":224900,"is_top_pay":true},"html_url":"https://alion.io/job/rtx-principal-software-engineer-7","json_url":"https://alion.io/job/rtx-principal-software-engineer-7.json","meta":{"generated_at":"2026-10-29T18:11:20Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":26922,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1162},"rest":"https://alion.io/mcp/rest/get_company?id=1162"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frtx-principal-software-engineer-7"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Frtx-principal-software-engineer-7"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Frtx-principal-software-engineer-7"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/rtx-principal-software-engineer-7\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frtx-principal-software-engineer-7"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3359649}},{"tool":"search_jobs","arguments":{"company":"rtx.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3359649},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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