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Dimensional/Mechanical Inspector

Torrance, California, United States
Full Time On-site

Summary

Job Description

The Dimensional/Mechanical Quality Inspector will support the manufacturing and assembly of precision mechanical components and structures for long-range hypersonic strike vehicles. This is an hourly, non-exempt position located in our Torrance facility. In this role, you will ensure mechanical parts and assemblies meet drawing, specification, and quality requirements throughout the production lifecycle.

Responsibilities

  • Perform receiving, in-process, and final inspection of machined parts, sheet metal, hardware, and mechanical assemblies
  • Conduct dimensional inspections using calipers, micrometers, height gauges, and other precision measurement tools
  • Interpret engineering drawings, GD&T, specifications, and acceptance criteria
  • Verify material certifications, traceability, and compliance documentation
  • Perform visual inspection for workmanship, damage, cleanliness, and configuration accuracy
  • Support first article inspections (FAI) in accordance with AS9102 requirements
  • Document nonconformances clearly and work with manufacturing and engineering on resolution
  • Maintain accurate inspection and acceptance records in accordance with the quality management system
  • Support continuous improvement initiatives related to inspection methods and defect reduction
  • Assist with customer and government source inspections as required

Basic Qualifications

  • 3+ years of experience inspecting mechanical or structural hardware in an aerospace or defense environment
  • Strong proficiency reading and interpreting engineering drawings and GD&T
  • Experience using common dimensional inspection tools
  • Knowledge of mechanical workmanship standards and assembly practices
  • High level of attention to detail and strong analytical skills

Preferred Skills and Experience

  • Experience supporting R&D and early-stage production programs
  • Prior involvement inspecting flight or mission-critical hardware
  • Ability to work efficiently in a fast-paced manufacturing environment
  • Strong written and verbal communication skills
  • Comfortable collaborating with machinists, assemblers, engineers, and quality personnel
  • Ability to manage shifting priorities while maintaining inspection accuracy
  • Familiarity with digital quality systems and inspection documentation

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

About Castelion

Castelion

Castelion is one of the fastest-rising defense technology companies focused on building affordable, rapidly deployable hypersonic strike systems for the U.S. military. Founded by former SpaceX leaders, the company is working to modernize how advanced weapons are developed and manufactured—using rapid iteration, vertical integration, and scalable production to deliver next-generation deterrence capabilities faster than traditional defense programs. Castelion’s mission centers on restoring America’s ability to field advanced military technology at speed and scale.

For job seekers, Castelion offers the opportunity to work directly on some of the most advanced technologies in national defense, including propulsion systems, avionics, flight software, guidance and navigation, missile systems, and advanced manufacturing. The company hires across aerospace engineering, embedded software, manufacturing, test engineering, avionics, cybersecurity, and operations—making it especially attractive to engineers, builders, veterans, and mission-driven professionals who want hands-on ownership of real hardware.

Unlike traditional defense contractors, Castelion operates with a startup-style engineering culture modeled after rapid aerospace development environments. Employees work closely with flight hardware, testing, and production systems in a fast-paced setting where speed, accountability, and execution are prioritized. The company openly emphasizes a builder mentality—giving team members the chance to own major projects and contribute directly to systems with national security impact.

As the U.S. military increases investment in hypersonic weapons, missile modernization, and scalable deterrence capabilities, Castelion continues to grow rapidly through major government contracts and manufacturing expansion. For professionals seeking a high-growth aerospace and defense company where they can help shape the future of national security technology, Castelion is quickly becoming one of the most exciting employers in the defense innovation ecosystem.

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