Senior Adv Systems Engineer - Environmental Control Systems …, Torrance

We are seeking a Senior Advanced Systems Engineer to lead system-level performance analysis and modeling for Environmental Control Systems (ECS), including bleed air, air conditioning, and vapor cycle systems. You will play a key role in defining system performance, developing models, and supporting testing and integration efforts. This position offers a blend of technical leadership, hands-on engineering, and cross-functional collaboration across multiple sites. You will report directly to our Engineering Manager, and you will work out of our Torrance, CA location. This role is eligible for hybrid work mode. Key Responsibilities Lead steady-state performance analysis of ECS and VCS systems using tools such as FORTRAN and Nexsys Develop, validate, and maintain system-level models, ensuring alignment with requirements and test data Define and validate system and component-level performance requirements Support system integration and testing, including: Test architecture and facility requirements Test planning, execution, and data analysis Model calibration and validation Collaborate across engineering teams, leadership, and external stakeholders Create and present technical reports and performance summaries to internal and external customers Provide technical leadership and mentorship to early-career engineers Lead PTMS (Power&Thermal Management System) analysis efforts for advanced aerospace programs YOU MUST HAVE Bachelor's degree from an accredited institution in a technical discipline such as the sciences, technology, engineering or mathematics. 5 years of experience in: JSF PTMS (Power&Thermal Management Systems) Performance analysis tools and methodologies Integrated system testing WE VALUE: Experience with MATLAB, Python, C++, or Visual Basic Strong background in system modeling, simulation, and validation Experience working on aerospace or defense programs Ability to influence across teams and communicate complex technical concepts clearly U.S. PERSON REQUIREMENTS Due to compliance with U.S. export control laws and regulations, candidate must be a U.S. Person, which is defined as, a U.S. citizen, a U.S. permanent resident, or have protected status in the U.S. under asylum or refugee status or have the ability to obtain _an export authorization._ Compensation&Benefits Overview The annual base salary range for this position is $133,000-$167,000. Please note that this salary information serves as a general guideline. Honeywell considers various factors when extending an offer, including but not limited to the scope and responsibilities of the position, the candidate's work experience, education and training, key skills, as well as market and business considerations. In addition to a performance-driven salary, cutting-edge work, and developing solutions side-by-side with dedicated experts in their fields, Honeywell employees are eligible for a comprehensive benefits package. This package includes employer-subsidized Medical, Dental, Vision, and Life Insurance; Short-Term and Long-Term Disability; 401(k) match, Flexible Spending Accounts, Health Savings Accounts, EAP, and Educational Assistance; Parental Leave, Paid Time Off (for vacation, personal business, sick time, and parental leave), and 12 Paid Holidays. For more information visit: click here ( The application period for the job is estimated to be 40 days from the job posting date; however, this may be shortened or extended depending on business needs and the availability of qualified candidates. Job Posting Date: May 4th, 2026. ABOUT HONEYWELL Honeywell International Inc. (Nasdaq: HON) invents and commercializes technologies that address some of the world's most critical challenges around energy, safety, security, air travel, productivity, and global urbanization. We are a leading software-industrial company committed to introducing state-of-the-art technology solutions to improve efficiency, productivity, sustainability, and safety in high-growth businesses in broad-based, attractive industrial end markets. Our products and solutions enable a safer, more comfortable, and more productive world, enhancing the quality of life of people around the globe. Learn more about Honeywell: click here ( THE BUSINESS UNIT Honeywell Aerospace Technologies (AT) products and services are found on virtually every commercial, defense, and space aircraft in the world. We build aircraft engines, cockpit and cabin electronics, wireless engage systems, mechanical components, and more, and engage many of them via our high-speed Wi-Fi offerings. Our solutions create healthier air travel, more fuel-efficient and better-maintained aircraft, more direct and on-time flight arrivals, safer skies and airports, and more comfortable flights, along with several innovations and services that reflect exciting and emerging new transportation methods such as self-reliant and supersonic flight. Revenues in 2023 for Honeywell Aerospace Technology were $14B, and there are approximately 21,000 employees globally. To learn more, please visit