Principal SMT Process Engineer

Date Posted: 2026-05-28 Country: United States of America Location: US-TX-MCKINNEY-513WA ~ 2501 W University Dr ~ WING A BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Security Clearance Type: None/Not Required Security Clearance Status: Not Required 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. The Advanced Products Center (APC) Manufacturing Engineering organization is seeking a Principal SMT Process Engineer to join the CCA Process Engineering team in McKinney, Texas. This hands-on role operates in a fast-paced, collaborative cleanroom environment, supporting RF microelectronic packaging and surface mount technology (SMT) within our state-of-the-art Microwave Automated Factory (an ISO Class 8 cleanroom environment). As subject matter experts, our team plays a critical role in factory success by installing and qualifying new equipment, improving existing processes, and driving process improvement projects. You will work closely with product engineers, quality engineers, reliability engineers, tooling engineers, industrial engineers, and operations leaders to develop and implement cutting-edge materials, processes, and automation, while also supporting mature production processes. Responsibilities include evaluating materials, equipment, and processes through statistical process control, experimental design, material analysis, mechanical design analysis, and root cause analysis. This role involves qualifying equipment, conducting acceptance testing, and developing specifications, as well as collaborating with internal and external suppliers to resolve technical challenges. Every day brings new opportunities to solve unique problems, making this a dynamic and impactful position. We are specifically seeking candidates who are hands-on, enjoy diving deep into technical requirements, proactive, accountable, good communicators, adaptable in a fast-paced environment, experienced in automated manufacturing, and ready to solve unique problems daily. This is an exciting opportunity to make a meaningful impact on innovative technologies and production processes. What You Will Do Provide on-site support for high-volume, high-mix production, addressing factory equipment, processes, materials, and product challenges to ensure efficient operations Work hand-in-hand with product engineers, quality engineers, reliability engineers, and manufacturing engineers on product manufacturing Develop and implement materials, processes, process improvements, and production support using established statistical process control techniques, experimental designs, material analysis, mechanical design analysis, and root cause analysis Evaluate materials, equipment and processes (including qualification, acceptance testing, and specification development) and interface with key internal and external suppliers to resolve technical issues Lead development, optimization and control of Surface Mount Technology (SMT) processes including paste deposition, paste and epoxy dispensing, pick-and-place, reflow and inspection (SPI, AOI and Xray) Drive yield improvements initiatives using data analysis, Design of Experiments (DOE) and root cause methodologies Collaborate with Design and Product Engineers to provide Design for Manufacturability (DFM) feedback and ensure robust product designs Support new product builds, often using automated equipment, and develop innovative solutions for next-generation product designs Drive process improvement projects to enhance factory productivity by integrating new technologies, qualifying new materials, and optimizing workflows Evaluate materials, equipment and processes (including qualification, acceptance testing, and specification development) and interface with key internal and external suppliers to resolve technical issues Evaluate, select, and integrate capital equipment to meet both current production demands and future business needs Communicate technical information effectively across cross-functional teams to ensure alignment and successful execution of initiatives Mentoring and coaching junior engineers and Technicians; act as a subject matter expert (SME) Spend up to 6+ hours per day in a cleanroom environment, adhering to cleanroom protocols and electrostatic discharge (ESD) procedures Work primarily during the day shift (start time between 6 AM and 9 AM) with the potential for a 9/80 schedule (9 days over 2 weeks) Qualifications You Must Have Typically Requires a Bachelor's degree in Science, Technology, Engineering or Math (STEM) and a minimum of 8 years of prior relevant experience 5+ years of experience in Surface Mount Technology (SMT) Manufacturing/Process Engineering Experience with high reliability manufacturing environments (aerospace, defense, medical, automotive). Qualifications We Prefer Six Sigma Black Belt or Green Belt Certification Proficiency in Statistical Process Control (SPC), statistical data analysis, Design of Experiments (DOE) techniques and Root Cause Corrective Action (RCCA) experience Experience identifying key process parameters, implementing process control and strong problem-solving skills using a data-driven approach to identify and resolve issues Proficiency in technical writing for operator instructions, process and material qualification reports, and equipment vendor statements of work Proven ability to lead projects, direct activities, and drive results 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 assistance is not available Learn More & Apply Now! Please consider the following role type definition as you apply for this role: 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. 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.