MMIC Design Engineer II - Onsite

Prattwhitney; McKinney (TX); On-site; USD 69,000 - 131,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k) match

Paid time off

Job summary

RTX in McKinney, TX, is seeking a skilled MMIC design engineer to join our RF/MMIC team. You will lead design, analysis, and verification of RF/mm-wave ICs, collaborating with MMIC engineers to ensure high-quality, manufacturable designs that meet specifications.

Requirements include a STEM master's degree and hands-on experience with Keysight ADS and EM tools (HFSS, Momentum), plus experience with GaN/GaAs/CMOS MMICs. Onsite role with competitive salary and benefits.

Qualifications

• Masters degree in STEM or related field.
• Experience with Keysight ADS and EM tools (HFSS, Momentum).
• Experience designing GaN, GaAs, and/or CMOS MMICs.

Responsibilities

• Assume responsibility for all aspects of the MMIC development process, including RF/DC topology choices, performance analysis, and verification to specifications.
• Collaborate with MMIC engineers to share lessons‑learned and improve the development process.
• Participate in design reviews and document design decisions to ensure outputs are high quality and simulatable.

Skills

Prioritizing and multitasking

Microwave testing

Education

Masters Degree in STEM

Tools

Keysight ADS

HFSS

Momentum

Job description

Date Posted: 2026-09-22 Country: United States of America Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D 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.

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co‑ops and full‑time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX. 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. Join us and help shape the future of aerospace and defense.

What You Will Do

• Assume responsibility for all aspects of the MMIC development process including RF and DC topology choices to optimize performance, analysis and documentation of performance, layout, submission to the foundry, and verification to specifications.
• Collaborate with other MMIC engineers to share lessons‑learned, grow the team’s knowledge base, improve the MMIC development process and increase first‑pass successes.
• Participate in rigorous and systematic design reviews and documentation of design decisions to ensure work outputs are of high quality and will function as simulated.

Qualifications You Must Have

• Masters Degree in Science, Technology, Engineering, or Mathematics (STEM)
• Experience with Keysight ADS and in EM tools such as HFSS, Momentum
• Experience designing GaN, GaAs, and/or CMOS MMICs

Qualifications We Prefer

• Experience with prioritizing and contributing to multiple tasks at the same time
• Experience in performing microwave and mm‑wave tests in the laboratory

This position is classified as: 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 68,900 USD - 131,100 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.