Mechanical Engineer

Castelion Corporation•Allen, TX

13d

About The Position

Design, build, and test the mechanical components and assemblies that enable Castelion’s next-generation RF sensors. The role works at the intersection of mechanical, thermal, and electrical engineering to develop electro-mechanical solutions from initial concept through production. The Mechanical Engineer owns mechanical design for RF sensor circuit card assemblies (CCAs), develops test fixtures for rapid integration and validation, and works hands-on with cross-functional engineering teams to deliver reliable, production-ready hardware. The position may require access to classified information or restricted U.S. Government sites, systems, or information. If designated, employment may depend on obtaining and maintaining required government security clearance or authorization and meeting applicable eligibility requirements. The position also requires access to export-controlled information, contingent on the candidate being able to access it without additional export licensing.

Requirements

Bachelor’s degree in Mechanical Engineering or a related engineering discipline.
At least 2 years of professional mechanical engineering experience; aerospace, automotive, defense, or other hardware-focused industries are preferred.
Proficiency in 3D CAD design and mechanical drawing development using Siemens NX, SolidWorks, or similar tools.
Foundational understanding of statics, dynamics, thermal principles, materials, tolerances, and mechanical interfaces.
Experience developing mechanical components, assemblies, prototypes, or fixtures.
Strong attention to detail in engineering drawings, material selection, part numbers, tolerances, and technical documentation.
Ownership mentality and willingness to take responsibility, work hands-on with hardware, and learn through rapid iteration.
Ability to collaborate effectively across mechanical, electrical, thermal, and test engineering disciplines.
Ability to access applicable export-controlled information without additional export licensing.
If the position is designated as requiring it, ability to obtain and maintain required U.S. Government security clearance or other authorization and satisfy applicable citizenship or other eligibility requirements.

Nice To Haves

Experience integrating, testing, and validating electro-mechanical subsystems within complex hardware systems.
Familiarity with PCB design concepts, electrical schematics, circuit card layouts, and mechanical enclosure integration.
Experience designing mechanical interfaces, enclosures, mounting solutions, and test fixtures for electronic assemblies.
Familiarity with RF sensors, radar, avionics, or communications systems in aerospace or defense environments.
Working knowledge of manufacturing processes, including machining, fabrication, assembly, and inspection.
Familiarity with engineering documentation, configuration management, and quality standards such as AS9100 or applicable MIL-STD requirements.
Experience troubleshooting hardware integration issues and incorporating test findings into iterative design improvements.

Responsibilities

Own the mechanical design and development of RF sensor circuit card assemblies (CCAs), ensuring system-level fit, function, structural integrity, and thermal performance.
Design, develop, and release mechanical fixtures and tooling for CCA integration, characterization, verification, and testing.
Create and maintain engineering documentation, including CAD models, drawings, tolerances, material specifications, part numbers, and revision-controlled design records.
Collaborate with electrical, thermal, and systems engineers to develop integrated hardware solutions and resolve mechanical design and interface challenges.
Lead mechanical integration, testing, and design verification, using results and integration feedback to drive design iterations and improvements.
Identify and resolve mechanical integration issues through hands-on troubleshooting, prototyping, experimentation, and root-cause analysis.
Optimize designs for manufacturability, reliability, and repeatability, accounting for fabrication methods, assembly processes, and production constraints.
Drive mechanical designs from concept through prototyping, integration, testing, and production release, owning technical execution and deliverables.
Improve hardware designs based on test data, manufacturing feedback, and evolving system requirements.