Principal Semiconductor Foundry Engineer

Date Posted: 2026-07-13 Country: United States of America Location: US-MA-ANDOVER-AR2 ~ 362 Lowell St ~ AR2 PLYMOUTH 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 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. An exciting opportunity exists for experienced Principal Semiconductor Foundry Engineer to join our III-V foundry team at the RF Microelectronics/Module Development & Foundry Services department at Raytheon in Andover, MA. This department develops, designs, and manufactures compound semiconductor devices, microwave/millimeter-wave integrated circuits, and modules for defense applications. The ideal candidates for these roles will have a broad understanding of semiconductor tools, processing techniques and microelectronic circuit testing. The successful candidates will support and execute process development efforts, assist in process sustainment, improve product yield, develop new processes and device capabilities, and assist in the creation of new technology discriminators in a III-V semiconductor wafer foundry. They may also develop proof of concept demonstrations of novel semiconductor processes, identify yield and process improvement opportunities, gather sponsorship and team resources, and execute on continuous improvement activities. Presence on the foundry floor is essential. What You Will Do: Frequently work on the foundry floor and interact with various process engineering, equipment engineering, digital technologies, quality, facilities, and operations teams Sustainment of current production processes and involvement with development of new processes Review in-line electrical data trends and process control metrics. Investigate scrap and rework events with root cause tools and approaches Maintain technical documentation (recipes, out-of-control action plans, FMEAs) Identify process improvement opportunities. Manipulate large datasets and use statistical analysis to define SPC controls, manage projects, and assign risk Manage yield improvement and RCCA efforts supporting the production line Support capital qualification efforts. Qualifications You Must Have: Typically requires a Bachelors Degree in Science, Technology, Engineering or Mathematics (STEM) A minimum of 8 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience. Experience in semiconductor processing techniques such as photolithography, dielectric deposition, metals evaporation, etch processes and/or optical or scanning electron microscope inspections. The ability to obtain and maintain a U.S. government issued security clearance post-start is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer: Experience with statistical analysis software (JMP, Minitab, R, SPSS, MATLAB, etc) Experience with characterizing, understanding, and improving semiconductor device performance and reliability. Experience in statistical process control (SPC) Broad knowledge related to semiconductor processing, device physics, and data analysis Experience troubleshooting a wide range of fabrication equipment, in addition to establishing equipment qualification and preventative maintenance procedures Experience with GaAs (Gallium Arsenide) and GaN (Gallium Nitride) Experience in a data analysis software packages (e.g. MATLAB, Python, SQL, JMP) Excellent communication skills to effectively transfer ideas 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. 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 link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.