> Markdown version of [/jobs/ext/4477709-mechanical-build-engineer](https://www.wearedevelopers.com/jobs/ext/4477709-mechanical-build-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). --- # Mechanical Build Engineer - **Company:** Booz Allen Hamilton Inc. - **Location:** El Segundo, CA, United States - **Salary:** $55,200.0 - $126,000.0 - **Contract:** Internship / Graduate position - **Skills:** 3d Models, Computer-Aided Design, Hardware Design, MATLAB, Mathcad, Test Data, SC Clearance, Modeling and Simulation - **Published:** October 8, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9228744/mechanical-build-engineer ## About the Role * Experience working in hardware design, prototyping, 3D modeling and computer-aided drafting ( CAD ) in an internship, school projects, or in a professional work environment * Knowledge of basic engineering and physics principles as they apply to hardware design and product develop ment * Knowledge of manufacturing technologies and approaches, including additive and subtractive manufacturing techniques * Ability to develop technical documentation, including 2D technical drawings and written technical documentation * Ability to collaborate with an integrated product team, including a variety of technical and non-technical teammates * Ability to obtain a Secret clearance * Bachelor's degree in Mechanical Engineering Nice If You Have: * Experience with prototyping and integration related to electromechanical or military systems * Experience with finite element analysis ( FEA ) or modeling and simulation activities * Experience with other engineering sof tware, including MATLAB, Mathcad, or multiphysics sof tware * Experience with lab-based develop mental testing and test data acquisition * Knowledge of product design for manufacturability, reliability, maintainability, injection molding, ruggedization, and extreme environments * Secret clearance * Master's degree in Mechanical Engineering ## Description Join our dynamic engineering team in El Segundo, CA, where you'll design, prototype, and deliver innovative hardware solutions for real-world applications. As a Mechanical Engineer, you'll collaborate with experience d engineers and cross-functional teams to tackle complex hardware challenges-ruggedizing systems for extreme environments to integrating cutting-edge technologies into systems that will operate in space, on the ground, or underwater. Your work will directly impact mission-critical projects, supporting both defense and advanced technology initiatives. If you're passionate about turning ideas into tangible solutions and thrive in a collaborative, fast-paced setting, this is the place to launch your engineering career.