Senior Mechanical Engineer, Systems Integration

Seattle · USD 140,000-200,000 / year · 5+ years experience · Onsite · Posted Sep 30, 2026

At a glance

As a Staff Systems Integration Engineer you will provide technical leadership for the integration of major aircraft systems across the full product development lifecycle.
You will establish subsystem installation architectures, guide multidisciplinary engineering teams, and lead complex integration efforts involving structures, avionics, propulsion, electrical systems, manufacturing, and suppliers.

Lead the mechanical integration of complete aircraft subsystems from concept through production, ensuring compatibility across structural, electrical, avionics, propulsion, and manufacturing interfaces.
Develop installation architecture for complex aircraft systems, including subsystem packaging, equipment mounting, and routing of electrical and fluid systems.
Lead the design of complex machined, composite, fabricated, and sheet metal assemblies requiring advanced engineering judgment.
Develop and review installation drawings, assembly documentation, and configuration baselines to ensure design consistency and production readiness.
Perform advanced tolerance analyses, structural hand calculations, and engineering trade studies supporting design decisions.
Coordinate subsystem integration activities during prototype builds, aircraft assembly, and production.
Mentor junior engineers in CAD modeling, GD&T application, installation design, and engineering best practices.
Coordinate suppliers and internal stakeholders to resolve technical issues affecting integration, manufacturability, schedule, or cost.
Support technical planning, schedule development, and project execution for assigned work packages.

Bachelor's or Master's degree in Mechanical Engineering or related discipline.
5+ years of experience in aircraft, aerospace, defense, robotics, or complex electromechanical system development.
Demonstrated experience designing machined, fabricated, composite, and sheet metal components from concept through production release.
Demonstrated experience leading mechanical integration of aircraft subsystems or complex assemblies.
Advanced CAD proficiency with NX, SolidWorks, CATIA, Creo, or equivalent.
Experience managing engineering data, product structures, Bills of Material (BOMs), and drawing releases using PLM systems such as Teamcenter, Windchill, or 3DEXPERIENCE.
Working knowledge of aircraft installation practices, subsystem packaging, interface management, equipment mounting, and maintainability considerations.
Experience developing installation layouts and routing solutions for EWIS, hydraulic, fuel, pneumatic, ECS, or similar mechanical systems.
Strong knowledge of GD&T, ASME Y14.5, tolerance stack-up, and drawing release processes.
Ability to coordinate across Manufacturing, Stress, Systems, Avionics, Supply Chain, and Test teams.

Aircraft integration experience on UAV, military, commercial, eVTOL, or autonomous aircraft programs.
Experience performing structural hand calculations, margin assessments, or preliminary stress analysis.
Experience with FEA including static, modal, vibration, fatigue, or thermal analysis.
Hands-on experience supporting build, production, testing, or hardware validation activities.
Experience managing technical scope, schedule, risk, or supplier coordination for subsystem work packages.
Familiarity with aircraft-level requirements, interface control, and configuration management.