Job Description

Overview

Castelion is rapidly developing advanced defense systems and is looking for a Mechanical Engineer to design, build, and test mechanical components for next-generation RF sensors. This role offers significant ownership and collaboration with exceptional teammates to make a measurable impact on the company's mission.

Responsibilities

  • Own the mechanical design and development of RF sensor circuit card assemblies (CCAs).
  • Design, develop, and release mechanical fixtures and tooling for CCA integration and testing.
  • Create and maintain detailed engineering documentation, including CAD models and drawings.
  • Collaborate with electrical, thermal, and systems engineers to develop integrated hardware solutions.
  • Lead mechanical integration, testing, and design verification activities.
  • Identify and resolve mechanical integration issues through troubleshooting and root-cause analysis.
  • Optimize designs for manufacturability, reliability, and repeatability.
  • Drive mechanical designs from initial concept through production release.
  • Continuously improve hardware designs based on test data and feedback.

Requirements

  • Bachelor’s degree in Mechanical Engineering or a related engineering discipline.
  • 2+ years of professional mechanical engineering experience in hardware-focused industries.
  • Proficiency in 3D CAD design using Siemens NX, SolidWorks, or similar tools.
  • Foundational understanding of statics, dynamics, thermal principles, and mechanical interfaces.
  • Experience developing mechanical components, assemblies, prototypes, or fixtures.
  • Strong attention to detail in engineering drawings and technical documentation.
  • Ownership mentality and willingness to work hands-on with hardware.
  • Ability to collaborate effectively across engineering disciplines.

Additional Information

  • This position may require access to classified information or restricted U.S. Government sites.
  • Employment may be contingent upon obtaining required U.S. Government security clearance.

How this job compares in Allen, TX

Pay in context

This employer didn't publish a rate. For reference, welding jobs across Texas currently run a median of $29/hr in our index, with the middle half of them falling between $23–$38/hr across 417 postings with published pay. That median is a reasonable floor to anchor on when a recruiter asks what you're looking for.

The local market in Allen, TX

This is the only active welding job we're currently tracking in Allen, TX, which makes it worth moving on quickly — there is no local competing offer to weigh it against. Across Texas as a whole we're tracking 1,245 other active welding openings from 548 employers. Browse welding jobs across Texas.

The most active employers in Texas at the moment, by number of open welding reqs, are Austin Industries (39), Zachry Group (30), and Welding Shop in Houston, TX (22). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

Within Texas, the best-paying metros we track by median hourly rate are Old Sixth Ward at $40/hr, Arlington at $39/hr, and Dallas at $36/hr. If you can relocate or commute, that spread is worth factoring in.

Similar openings near Allen, TX

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Mechanical Engineer figures were last recalculated when this page was built.