Experienced or Senior Mechanical System Design Engineers

Locations: Berkeley, MO; Hazelwood, MO; St. Louis, MO; St. Charles, MO; Mascoutah, IL

Job ID: JR2026522036

Category: Engineering - Mechanical & Structural

Role Type: Onsite

Post Date: Sept. 04, 2026

About the Position

At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful, and inclusive, with great opportunity for professional growth. Find your future with us.

Boeing St. Louis is building the future ‒ creating innovative solutions that will define the next generation of aerospace. We are currently seeking Experienced or Senior Mechanical System Design Engineers to develop, maintain, and modify air vehicle subsystems (Armament, Crew Systems, Environmental Cooling, Equipment, Fuel, Hydraulics, Landing Gear, Mechanisms, and Thermodynamic) and component designs, using 3-D Computer Aided Design tools and/or other design methods, to provide product definition to other engineering groups, production operations, suppliers, and external customers throughout the product lifecycle.

These positions are located in the St. Louis region and support current and emerging aircraft programs as part of the Air Dominance division in Boeing Defense Space and Security (BDS).

Responsibilities

Level 3

• Develop, integrate, and document air vehicle subsystems requirements to establish the system design
• Develop, maintain, and modify air vehicle subsystems and component designs, using 3-D Computer Aided Design tools and/or other design methods, to provide product definition to other engineering groups, production operations, suppliers, and external customers throughout the product lifecycle
• Perform, integrate analytical and test results to validate and verify systems and components meet requirements and specifications
• Manage supplier development, test, and production activities and coordinates with the supplier to optimize the design and achieve program goals
• Develop new design/analysis processes and tools to improve the effectiveness, quality, and efficiency of the development effort
• Investigate emerging technologies to develop concepts for future product designs to meet projected requirements
• Work under general direction

Level 4

• Develop, integrate, and document air vehicle subsystems requirements to establish the system design
• Develop, maintain, and modify air vehicle subsystem and component designs, using 3-D Computer Aided Design tools and/or other design methods, to provide product definition to other engineering groups, production operations, suppliers, and external customers throughout the product lifecycle
• Lead performance, integration, and analysis of tests to validate and verify systems and components meet requirements and specifications
• Manage supplier development, test, and production activities and coordinates with the supplier to optimize the design and achieve program goals
• Assist with investigation of emerging technologies to develop concepts for future product designs to meet projected requirements
• Work under minimal direction

Requirements

• Bachelor of Science degree in Engineering (with a focus on Mechanical, Civil, Aerospace Aeronautical, or Material Sciences)
• Level 3: 5 or more years' related work experience or an equivalent combination of technical education and experience
• Level 4: 9 or more years' related work experience or an equivalent combination of technical education and experience
• Experience using NX / Teamcenter and familiarity with reading 2-D drawings
• This position requires the ability to obtain a US Security Clearance for which the US Government requires US Citizenship as a condition of employment. An interim and/or final U.S. Secret Clearance Post-Start is required.
• Some positions may require the ability to obtain Special Program Access, for which the U.S. Government requires U.S. Citizenship only.

Nice to Have

• Mechanical Design experience on military or commercial aircraft
• An active U.S. Security Clearance in the past 24 months
• Experience leading and working with aircraft fluid systems design and components including pumps, valves, heat exchangers, sensors, and controls
• Experience with component requirement specifications and managing supplier development activities
• Experience with thermal analysis tools such as ANSYS Thermal Desktop
• Experience with modeling and simulation software such as Matlab, Simulink, Simcenter Amesim, and Flomaster
• Experience with Model Based Systems Engineering concepts and tools such as Magic Systems of Systems Architect
• The ability to work in a multidisciplinary team
• Experience in developing solutions to a wide range of complex technical problems, requiring ingenuity and innovation

We Offer

• Competitive salary range: $103,700 - $171,350
• Relocation based on candidate eligibility
• Generous company match to your 401(k)
• Industry-leading tuition assistance program
• Fertility, adoption, and surrogacy benefits
• Up to $10,000 gift match when you support your favorite nonprofit organizations

About the Company

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status, or other characteristics protected by law.

Apply Now