Senior Principal Systems Engineer

Prattwhitney; Melbourne (FL); On-site; USD 132,000 - 252,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks of vacation

Generous 401(k) plan with matching and

Employer retirement contribution

Tuition reimbursement program

Student Loan Repayment Program

Life insurance

Disability coverage

Pet insurance

Home and auto insurance

Critical illness insurance

Group legal

ID theft protection

Parental leave

Employee wellness programs

Relocation assistance

Job summary

RTX is seeking a highly experienced engineer to perform multi-core analysis and develop benchmarks for safety-critical aerospace systems. The role focuses on understanding performance, interference, and mitigation on multi-core hardware in demanding environments.

Ideal candidates have a STEM degree with extensive hands-on experience in embedded hardware, RTOS, and AC-20-193 guidance. Onsite work in Melbourne, FL is required with competitive benefits and relocation eligibility.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience.
• Must be authorized to work in the U.S. without sponsorship now or in the future.
• Experience with multi-core processor products in safety‑critical environments.
• Real‑Time Operating System (RTOS) experience in safety‑critical environments.
• Embedded hardware development and verification experience.
• Experience or knowledge of AC‑20‑193 (previously CAST‑32A).
• Experience defining hardware interference channels.

Responsibilities

• Perform multi-core analysis aligned with AC‑20‑193 guidance on a multi-core system.
• Develop or execute micro-benchmarks/benchmarks on the target multi-core system.
• Analyze system performance and undesired behavior caused by hardware or software interference and drive mitigation solutions.

Skills

Multi-core analysis

RTOS experience

Embedded hardware development

Hardware interference channels

Safety-critical environments

Education

Bachelor's degree in STEM

Advanced degree in related field

Tools

AC-20-193 (CAST-32A)

Job description

Date Posted: 2026-09-29 Country: United States of America Location: US-FL-MELBOURNE-313 ~ 1344 S Babcock St ~ BLDG 313 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Must be authorized to work in the U.S. without the company’s immigration sponsorship now or in the future. The company will not offer immigration sponsorship for this position. The company will not seek an export authorization for this role. Security Clearance Type: None/Not Required Security Clearance Status: Not Required

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. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

What You Will Do:

• Perform multi-core analysis aligned with AC‑20‑193 guidance on a multi‑core system.
• Develop or execute micro‑benchmarks/benchmarks on the target multi‑core system.
• Analyze system performance and undesired behavior caused by hardware or software interference and drive mitigation solutions.

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience.
• Must be authorized to work in the U.S. without the company’s immigration sponsorship now or in the future. The company will not offer immigration sponsorship for this position. The company will not seek an export authorization for this role.
• Experience with multi‑core processor products in safety‑critical environments.
• Real‑Time Operating System (RTOS) experience in safety‑critical environments.
• Embedded hardware development and verification experience.
• Experience or knowledge of AC‑20‑193 (previously CAST‑32A).
• Experience defining hardware interference channels.

Qualifications We Prefer:

• Embedded system design and verification experience.
• Experience analyzing system behavior and performance impacts in multi‑core architectures.
• Background developing benchmarks or micro‑benchmarks for embedded systems to test and analyze a multi‑core platform.

What We Offer

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Carrot Health for hormonal health, fertility, and family building
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program
• And more!
• Eligible for relocation

Avionics delivers advanced cockpit displays, vision systems, and comprehensive digital solutions for global government, commercial and business aviation customers. We provide connectivity and managed data services to ensure safety and seamless communication for passengers, crews, and militaries, from aircraft and airports to air traffic management. Join us in creating solutions that connect the world, one flight at a time.

Please ensure the role type (defined below) is appropriate for your needs before applying to 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. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.

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 132,400 USD - 251,600 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.

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.