> Markdown version of [/jobs/ext/4356672-senior-design-engineer](https://www.wearedevelopers.com/jobs/ext/4356672-senior-design-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Design Engineer - **Company:** Actalent - **Location:** Mukilteo, WA, United States - **Experience:** Expert - **Salary:** $135,000.0 - $180,000.0 - **Contract:** Permanent contract - **Skills:** 3d Models, Computer-Aided Design, SolidWorks (CAD), Hardware Design, Software Requirements Analysis, Hardware Testing - **Published:** October 21, 2026 - **Apply:** https://www.careercircle.com/jobs/all/all/usa/wa/mukilteo/cf9e8e9b-82c2-45c4-9829-8a50f886b677 ## About the Role * True aerospace/defense development experience. * Mechanical design fundamentals. * SolidWorks and CAD/CAE knowledge. * GD&T and engineering calculations. * Experience with qualification-tested hardware. * Ability to work independently and manage multiple concurrent priorities/design efforts. * Technical problem-solving and creativity. * Strong communication and customer relationship skills. * Quality- and safety-focused mindset. * U.S. person status required under U.S. export-control requirements. Additional Skills & Qualifications * BS in Mechanical Engineering, Aerospace Engineering, or equivalent field. * Typically 6+ years of aerospace/defense system design experience. * Materials/strength/stress fundamentals. * Drawing and technical diagram interpretation. * Military/commercial design specification knowledge. ## Description The Senior Design Engineer will be responsible for leading the mechanical design and development of aerospace structures, mechanisms, and systems from initial concept through detailed design, validation, testing, qualification, and delivery. This role requires translating customer/system requirements into mechanical design solutions, performing and reviewing engineering calculations and analyses, developing CAD models and drawing packages, supporting prototypes and hardware testing, and providing technical direction to junior engineers. Responsibilities * Lead hands-on mechanical design and development of aerospace structures, mechanisms, and systems. * Translate customer/system requirements into mechanical design solutions. * Perform and review engineering calculations and analyses. * Develop CAD models and drawing packages. * Support prototypes and hardware testing. * Provide technical direction to junior engineers. * Independently lead design efforts while remaining hands-on with CAD, drawings, engineering calculations, analysis, and hardware development. * Support multiple simultaneous programs. * Contribute to proposal efforts, rapid concept development, and customer-facing technical presentations.