Sr Advanced Software Engineer

Honeywell Aerospace US LLC; Torrance (CA); Hybrid; USD 140,000 - 176,000; Full time

Benefits offered by this job

Employer-subsidized medical, dental, v

Short-term and long-term disability

401(k) match, FSAs and HSA

Employee assistance program and ed.ass

Parental leave and 12 paid holidays

Paid time off

Job summary

Honeywell Aerospace in Torrance, CA is seeking a Senior Advanced Software Engineer to design, develop, and integrate complex environmental control and aircraft system software. You will work with cross-functional teams to meet performance, reliability, and regulatory requirements, reporting to the Software Engineering Manager on a hybrid schedule.

Requires a bachelor’s degree in a technical field and 5+ years in mechanical/engineering with emphasis on thermal management modeling; proficiency

Qualifications

• Bachelor’s degree in sciences, technology, engineering or mathematics.
• 5+ years of experience in mechanical/chemical engineering with emphasis on thermal management modeling.
• Strong knowledge of system design, integration and testing methodologies.
• Proficiency with modeling tools such as NPSS, SysML and MATLAB for thermal analysis.

Responsibilities

• Develop and refine ECS performance models and simulations for complex air and vapor cycle systems.
• Conduct thermodynamic, heat transfer, and fluid mechanics analyses to optimize performance.
• Define system and equipment level KPIs and derive requirements.
• Create and maintain system-level steady-state models and validate with data.
• Coordinate system modeling and handoffs between internal and external stakeholders.
• Support system integration test activities including test plans and data review.

Skills

Analytical thinking

Problem-solving

System design principles

NPSS

SysML

MATLAB

Education

Bachelor’s degree in sciences, technology, engineering or mathematics

Tools

NPSS

SysML

MATLAB

Job description

The Controls Systems (CS) Environmental Control Systems (ECS) organization has an immediate need for a Software Engineer with strong analytical and problem-solving skills to work on various Air Transport, Regional, Business and Military aircraft.

As a Senior Advanced Software Engineer at Honeywell Aerospace, you will be responsible for designing, developing, and integrating complex systems to meet customer and business requirements. You will work collaboratively with cross-functional teams to ensure system performance, reliability, and compliance with industry standards.

You will report directly to our Software Engineering Manager and you’ll work out of our Torrance, CA location on a Hybrid work schedule.

In this role, you will impact the successful delivery of innovative system solutions that drive Honeywell’s competitive advantage and satisfy customer needs in a dynamic market environment.

Responsibilities

KEY RESPONSIBILITIES

• Develop and refine ECS performance models and simulations for complex air and vapor cycle systems, including validation and verification of system level steady state requirements
• Conduct thermodynamic, heat transfer, and fluid mechanics analyses to optimize system performance.
• Definition of system and equipment level key performance and generation/ validation of associated requirements.
• Creation and maintenance of system level steady state models including run time performance optimization, model validation against component and system test data, and generation of model documentation.
• System Modeling/Development process coordination and handoffs between internal and external stakeholders, communication with chief engineering and technical management.
• System Integration Test Support including facility architecture and requirements, test model definition, characterization test plans/procedures, test execution support and data processing/review and model calibration.

Qualifications

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 mechanical, chemical, or related engineering fields, with emphasis on thermal management system modeling and analysis
• Strong knowledge of system design principles, integration, and testing methodologies
• Proficiency with systems modeling tools and software such as NPSS, SysML, MATLAB, or similar platforms for mechanical thermal analysis and design

WE VALUE

• Advanced degrees in Mechanical Engineering, Chemical Engineering, Systems Engineering, Aerospace Engineering, or related technical fields
• Experience in physics-based AI/ML model development
• Experience in advanced thermal management, advanced vapor cycle systems design and development
• Experience in mechanical engineering thermal simulations, system modeling and analysis, and system integration test
• Familiarity with regulatory standards and compliance requirements
• Ability to work effectively in cross-functional teams and manage multiple priorities

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.

The annual base salary range for this position is $140,000.00 - $176,000.00. 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.

BENEFITS

Beyond a performance-driven salary, you’ll work alongside dedicated experts on technology that’s advancing aviation. As a Honeywell Aerospace employee, you’re eligible for a comprehensive benefits package that includes:

• Employer-subsidized medical, dental, vision and life insurance
• Short-term and long-term disability coverage
• 401(k) match, flexible spending accounts and health savings accounts
• Employee assistance program and educational assistance
• Parental leave and 12 paid holidays
• Paid time off for vacation, personal and sick time

Explore your benefits: https://honeywellaerospacebenefits.com/

ABOUT HONEYWELL AEROSPACE

Join a company that’s reintroducing itself to the aviation community we’ve helped advance for more than a century. At Honeywell Aerospace (NASDAQ: HONA), we’re launching as an independent, publicly traded aerospace and defense company built on a legacy of operational excellence and mission-focused execution.

Our new brand identity pairs that heritage with real momentum, as we build technology that helps pilots navigate with confidence, aircraft operate more efficiently, and operators stay ahead of change. With our systems on board 90% of the world’s aircraft, your work here has reach that’s rare to find anywhere else.

Honeywell Aerospace products and services are found on aircraft across commercial aviation, defense and space — from engines and cockpit electronics to cabin systems, mechanical components and connectivity solutions. Our technology helps operators fly more safely, reduce fuel consumption, improve on-time performance and deliver a better experience for the people on board.

As aviation continues to evolve, we’re also developing systems to support autonomous and supersonic platforms, bringing the same focus on safety and efficiency to the next era of flight. With approximately 36,000 employees worldwide and net sales of $17.4B in 2025, Honeywell Aerospace is one of the largest dedicated aerospace companies in the world. Explore our businesses: https://www.honeywellaerospace.com

Focusing on our customers, investing in innovation, and building a culture of accountability and performance is how we’re shaping what comes next.

Every horizon. Every mission. Every day.

THE BUSINESS UNIT

Control Systems

Control Systems provides a wide range of mechanical products and value-adding services to Honeywell Aerospace customers, including aircraft manufacturers and operators, and agencies of the U.S. government. The business develops and manufactures air and thermal systems, mechanical components, wheels and braking systems. It also manages and operates facilities for the Federal government. Every 5 seconds, an aircraft lands with Honeywell Wheels and brakes. The entire fleet of U.S military fighters and trainers use Honeywell Cabin Pressure Systems.

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. Posting Date: Month Day, Year or 09/14/2026