Mechanical Design Engineer I

Honeywell Aerospace US LLC; Torrance (CA); Hybrid; USD 82,000 - 102,000; Full time

Benefits offered by this job

Medical, dental, vision

Disability coverage

401(k) match

Educational assistance

Parental leave

Paid holidays

PTO

Job summary

Honeywell Aerospace US LLC in Torrance, CA seeks a Mechanical Engineer to develop ECS performance models for air and vapor cycle systems, and to validate system requirements. You will conduct thermodynamics analyses, collaboration with cross-functional teams, and contribute to model documentation and testing to ensure compliance with specifications.

Responsibilities include model development, validation against test data, and producing system-level documentation, with opportunities to work on

Qualifications

• Bachelor’s degree in Mechanical, Chemical, Engineering Physics, or Aerospace Engineering or related engineering fields.
• Strong analytical and problem-solving skills.
• 0 - 2 years of experience in mechanical, chemical, or related engineering fields.
• Advanced degrees in Mechanical Engineering, Chemical Engineering, Systems Engineering or related technical field with emphasis on thermal management system modeling and analysis, in lieu of experience.

Responsibilities

• Develop and refine ECS performance models and simulations for 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.
• Collaborate with engineering teams to integrate hardware and software components effectively
• Perform system validation, verification, and testing to ensure compliance with specifications

Skills

Analytical thinking

Problem solving

0-2 years experience

Education

Bachelor's degree in Mechanical, Chemical, Engineering Physics, or Aerospace Engineering

Tools

NPSS

SysML

MATLAB

Job description

Responsibilities

KEY RESPONSIBILITIES

• Develop and refine ECS performance models and simulations for 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.
• Collaborate with engineering teams to integrate hardware and software components effectively
• Perform system validation, verification, and testing to ensure compliance with specifications

Qualifications

YOU MUST HAVE

• Bachelor’s degree in Mechanical, Chemical, Engineering Physics, or Aerospace Engineering or related engineering fields.
• Strong analytical and problem-solving skills
• 0 - 2 years of experience in mechanical, chemical, or related engineering fields
• Advanced degrees in Mechanical Engineering, Chemical Engineering, Systems Engineering or related technical field with emphasis on thermal management system modeling and analysis, in lieu of experience

WE VALUE

• Experience in thermal management system design and development
• Experience in systems modeling tools and software such as NPSS, SysML, MATLAB, or similar platforms for system analysis and design
• Ability to work effectively in cross-functional teams and manage multiple priorities

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/

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 $82,000.00-$102,000.000. 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.

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.

Honeywell is an equal opportunity employer. Qualified applicants will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, religion, or veteran status.

The application period for the job is estimated to 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 08/26/2026

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