> Markdown version of [/jobs/ext/4328045-tool-engineer-principal-tool-engineer](https://www.wearedevelopers.com/jobs/ext/4328045-tool-engineer-principal-tool-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). --- # Tool Engineer / Principal Tool Engineer - **Company:** Northrop Grumman - **Location:** Palmdale, CA, United States - **Salary:** $83,400.0 - $125,200.0 - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, SolidWorks (CAD), PC Tools, Microsoft Office, Build Management, Mastercam - **Published:** October 2, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9213352/tool-engineer-principal-tool-engineer ## About the Role * Customer Service * Advanced computer skills (Microsoft office suite + CAD) * Works well under pressure * Strong time management skills * Attention to detail * Effective communication skills * Continuous improvement * Mechanical aptitude * Works with ambiguity, * Bachelor's degree with 1 year of manufacturing or tool design experience OR Master's Degree with 0 years of experience * Experience creating drawings to be used in manufacturing following industry and corporate drafting standards * Experience in machine shop practices * Knowledge of the physical properties of materials and how to harden, temper and stress relieve materials to achieve required properties * Must be knowledgeable in the following design areas: Dies, Molds, Gaging, cutting tools, fixtures, Machine design * Design and assemble precise tools and fixtures to work with energetic materials * Experience in press tooling, both hydraulic and pneumatic presses * Experience using CAD software such as NX, Mastercam, Solidworks * Able to work weekly Monday - Thursday 3:00 PM - 1:30 AM; Occasional Fridays and overtime required * Considerable amount of time standing and walking, up to 50% of time, * Bachelor's degree with 4 years of manufacturing or tool design experience OR Master's Degree with 3 years of manufacturing or tool design experience OR PhD with 0 years of experience * Experience creating drawings to be used in manufacturing following industry and corporate drafting standards * Experience in machine shop practices * Knowledge of the physical properties of materials and how to harden, temper and stress relieve materials to achieve required properties * Must be knowledgeable in the following design areas: Dies, Molds, Gaging, cutting tools, fixtures, Machine design * Design and assemble precise tools and fixtures to work with energetic materials * Experience in press tooling, both hydraulic and pneumatic presses * Experience using CAD software such as NX, Mastercam, Solidworks * Ability to work weekly Monday - Thursday 3:00 PM - 1:30 AM; Occasional Fridays and overtime required * Considerable amount of time standing and walking, up to 50% of time, * Possess an understanding of Geometric Dimensioning and Tolerancing (GD&T) ## Description * Plan, design, document and oversee the build of complex tools and assemblies * Design tools, mechanisms, special machine tools using NX and Mastercam * Create designs and drawings to be sent out for build * Requires knowledge of mechanics and application of mechanical movements * Adapt standard equipment to special purposes * Work independently to solve problems and create new designs, generally with little guidance * Select materials to be used to meet design and usage requirements * Supervise test and assembly of new design if necessary * Familiar with ergonomics and with applicable OSHA safety standards relative to pneumatics and hydraulics * Collaborates with engineering, technicians and management throughout the design and build process * Organize and maintain new and existing drawing records