Principal Engineer, Semiconductor Technical Lead

Date Posted: 2026-08-25 Country: United States of America Location: US-MA-ANDOVER-AN1 ~ 350 Lowell St ~ AN1 ESSEX BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after 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 freedoms and deter aggression, creating a safer, more secure world. Raytheon has an exciting opportunity for a Principal Engineer, Semiconductor Technical Lead to join our III-V process development team within the Microelectronics/Module Design & Foundry Services Department. In this role, you will work on cutting-edge gallium arsenide, gallium nitride-based devices, and III-V focal plane array fabrication. We are seeking a highly skilled professional with a broad understanding of microelectronics processing, III-V device characteristics, reliability requirements, MMIC product performance, and failure analysis. As a Principal Engineer, Semiconductor Technical Lead, you will collaborate across all of engineering work centers in our III-V semiconductor wafer foundry to manage projects in process development, transition to production, yield improvement, and process sustainment. You will provide subject matter expertise from semiconductor fabrication perspective on reliability data, failure analysis, DC & RF test methods, MMIC performance, foundry layout, and design rules. You will also monitor progress, report on milestones, and drive foundry improvements. The ideal candidate is an innovative problem-solver with a demonstrated ability to think critically and creatively, both independently and in team settings. A strong background in microelectronics processing techniques, such as data analysis, foundry process integration, and process characterization, is essential. Excellent communication skills are key attributes when briefing leadership and driving execution amongst the team. The candidate is expected to work well in large and small, cross-functional teams, understand foundry processes, develop process improvements, establish root cause of yield drivers, drive implementation of solutions for MMIC product yield drivers and reliability failures, identify opportunities for future semiconductor processes, gather sponsorship and team resources, and execute activities. This is an onsite role and located in Andover, MA or Tewksbury, MA site, with Andover being the primary location. What You Will Do Lead, manage, and support both independent and contract research and development projects Develop process development and yield improvement ideas followed by collaboration with Advanced Technology program team throughout the capture, proposal, award and execution phases of development programs Provide subject matter expertise of major yield drivers in the semiconductor foundry and serve as the technical interface with programs on MMIC yield loss and product failures at the next higher-level assembly Develop a semiconductor technology roadmap to identify and implement next-generation process technologies, process improvements, product yield enhancements, and identify gaps in equipment capabilities Drive transition to production initiatives of semiconductor technologies and process modules while bridging the gap between process development and MMIC product sustainment Create and maintain schedules for process development and yield improvement initiatives to drive execution of projects on time and within budget Effectively communicate with senior leadership, program management and customer community on engineering project status and root cause investigations Engage the MMIC and module design teams to develop semiconductor processes that enable product performance Collaborate with cross-functional teams to understand semiconductor process interaction with MMIC performance and reliability to identify process limitations and areas for improvement Manage engineering investments and improvement initiatives to achieve program cost and schedule, support capacity and technology roadmap objectives Qualifications You Must Have Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum 8 years of prior relevant experience Experience in semiconductor processing techniques including photolithography, dry etching, wet chemistry, metals evaporation, sputtering and backside processing (also knowledge of III-V device characteristics), and/or MMIC performance Qualifications We Prefer Experience managing and reporting on project schedules and financials Proven ability to lead cross-functional teams and execute improvement initiatives Excellent communication and coordination skills to work effectively with stakeholders Familiarity with III-V semiconductor fabrication processes and techniques Strong analytical and data-driven approach to problem-solving Proficient in statistical process control and lean manufacturing methods (e.g., Six Sigma) Experience in a data analysis software package (e.g., SQL, JMP) 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. Relocation Not Available - Relocation assistance is not available for this position. Learn More & Apply Now! This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS) , 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: Raytheon’s Advanced Technology Advanced Technology | Raytheon We Are RTX 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. 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