Dimensional Engineer Jobs in California (NOW HIRING)

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapon systems to give America and its Allies a definitive edge and deter future conflicts.

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.

• 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

• 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

• 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

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

Desire and experience questioning assumptions in ways that lead to breakthrough 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.

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.

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.

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.