About the role
Senior NDE Level II Technician - Castelion Corporation | Career Page Senior NDE Level II Technician Torrance, California, United States Apply for Position Or refer someone Job Openings Senior NDE Level II Technician About the job Senior NDE Level II Technician Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact. Senior NDE Level II Technician Castelion is seeking a Senior NDE Level II Technician to support the inspection, manufacturing, and quality assurance of solid rocket motor systems used in the development of long-range hypersonic strike vehicles. This is a full-time position located at our Torrance, CA facility. As a Senior NDE Level II Technician, you will work closely with Engineering teams in NDE, Quality, and Manufacturing to perform non-destructive evaluation of critical aerospace hardware throughout the manufacturing and assembly process. The position will have a strong focus on Digital Radiography (DR), Computed Tomography (CT), Phased Array Ultrasonic Testing (PAUT), Magnetic Particle (MT), and Visual Testing (VT)/Weld Inspection, ensuring components and welded assemblies meet applicable engineering drawings, specifications, approved inspection procedures, and acceptance criteria. You will perform in-process and final inspections, interpret and evaluate inspection results within Level II certification authority, accurately document findings, and identify nonconforming conditions that could affect product integrity or performance. You will also collaborate with NDE Level III personnel and engineering teams to resolve technical inspection issues, support corrective actions, and continuously improve inspection and manufacturing processes. This role is critical to ensuring the quality, reliability, and integrity of flight-critical hardware while supporting Castelion's fast-paced development and production environment.
Responsibilities Contribute to projects aimed at increasing operational efficiencyat the site Conduct in-process, final, and post-fabrication inspections to verify product quality and conformance. Perform Digital Radiography (DR), Computed Tomography (CT), Phased Array Ultrasonic Testing (PAUT), Magnetic Particle (MT), and Visual Testing (VT)/Weld Inspection on aerospace components, assemblies, and fabricated hardware in accordance with approved NDE procedures and applicable
requirements. Inspect welds for size, profile, contour, alignment, surface condition, workmanship, and visible discontinuities. Interpret and evaluate inspection results in accordance with applicable engineering drawings, specifications, procedures, and acceptance/rejection criteria. Read and interpret drawing weld symbols, manufacturing instructions, and technical documentation. Set up, standardize, verify, and operate applicable NDE and inspection equipment within the scope of Level II qualification. Utilize weld gauges, borescopes, magnification equipment, precision measurement tools, and other inspection equipment as required. Accurately document inspection results and maintain required inspection records, traceability, and quality documentation. Identify, document, and communicate nonconforming conditions to NDE Level III, Quality, Engineering, Welding, and Manufacturing teams. Collaborate with NDE Level III on complex indications, technical issues, inspection
requirements, and development or improvement of NDE techniques. Support the inspection and evaluation of flight-critical aerospace hardware throughout manufacturing, assembly, and integration. Assist with troubleshooting, root-cause investigations, corrective actions, and continuous improvement activities related to NDE and product quality. Maintain inspection equipment and ensure required equipment checks, calibration status, and documentation are current. Support development and maturation of NDE inspection processes as manufacturing and production capabilities expand. Maintain compliance with applicable safety, quality, customer, and regulatory
requirements. Work effectively in a fast-paced manufacturing environment while maintaining a high level of inspection accuracy, quality, and attention to detail. Basic
Qualifications High school diploma or GED required; technical, vocational, or trade school education preferred. Minimum of 3 years of hands-on NDE inspection experience, preferably within aerospace, defense, aviation, or another highly regulated manufacturing environment. Preferred Skills and Experience Current or previous NDE Level II qualification/certification in one or more NDE Method/Techniques of Digital Radiography (DR), Computed Tomography (CT), Phased Array Ultrasonic Testing (PAUT), Magnetic Particle (MT), and Visual Testing (VT)/Weld Inspection in accordance with an employer-based written practice or applicable industry standard. Demonstrated experience performing visual and weld inspections on fabricated and welded components. Working knowledge of welding processes, weld joint configurations, weld symbols, common weld discontinuities, and applicable acceptance/rejection criteria. Ability to read and interpret engineering drawings, technical specifications, weld symbols, inspection procedures, and work instructions. Experience using weld gauges, precision measurement tools, borescopes, magnification equipment, and other visual inspection equipment. Working knowledge of NDE equipment setup, calibration/standardization, system verification, and inspection documentation
requirements. Ability to independently interpret and evaluate inspection results within the scope of Level II qualification. Working knowledge of inspection documentation, product traceability, nonconformance reporting, and quality-system
requirements. Ability to clearly communicate inspection findings and nonconforming conditions to NDE Level III, Quality, Engineering, and Manufacturing personnel. Strong attention to detail and commitment to inspection accuracy, product quality, and safety. Ability to work effectively in a fast-paced aerospace manufacturing and production environment. Must be able to meet applicable vision examination and NDE certification
requirements.
Benefits And
Perks Employee Equity: Meaningful equity for all full-time employees - share value has increased 150x in three years Personal Time Off: Four (4) weeks of paid time off to unplug, reset, and come back sharp—velocity matters, burnout doesn't Company Paid Holidays: Ten (10) company paid holidays Medical: We offer plans at 100% employee covered and 80% of dependent coverage Dental & Vision: We cover 90% employees and 80% for dependents to ensure you and your family have access to quality preventive and ongoing care FSA/HSA: To support long-term health and financial resilience, we offer FSA and HSA options that allow employees to set aside pre-tax dollars for eligible medical and dependent care expenses Retirement: 401k plan offered to support long term financial growth along side high-impact, high-velocity work Paid Parental Leave: We support growing families with meaningful time to bond and recover. Birthing parents are eligible for up to 10 weeks of paid leave, while non-birthing parents may take up to 4 weeks of paid leave. This time can be used for pre-natal care, pregnancy, childbirth, and related medical needs—ensuring every parent has the support they need during this important life moment.8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees Meals & Catering: Frequently catered lunches and team meals, plus company-covered meals when extra time or effort is required Snacks & Beverages: Fully stocked kitchen with unlimited snacks and drinks to keep you fueled throughout the day Performance & Fitness: $100 monthly fitness stipend to support peak performance and health, both inside and outside of work EV Charging: Onsite electric vehicle charging available for employees Physical Demands Must be willing to work extended hours and/or weekends as needed Must be able to travel up to 30% Must be able to lift more than 50lbs ITAR
Requirements 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. This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government
requirements. If the position is so designated, your employment in
the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility
requirements imposed by applicable law, regulation, executive order, or government contract
requirements. You will be notified if and when such
requirements apply. Failure to obtain or maintain any required clearance or authorization may result in reassignment, leave, or separation from employment, consistent with business needs and applicable law. Affirmative Action/EEO Statement 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. Other Duties Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or
responsibilities that are required of the employee for this job. Duties,
responsibilities and activities may change at any time with or without notice. Apply for Position Or refer someone Share Facebook Line LinkedIn X (Formerly Twitter) Whatsapp Email Powered by Manatal
About Castelion
Castelion is a modern defense production company building long-range hypersonic strike systems to address a critical national security gap. Founded in 2021, Castelion was created in response to the recognized need for the United States to rapidly develop hypersonic capabilities to remain competitive with near-peer adversaries and deter future conflicts.
The company operates under the philosophy of "Peace through Deterrence" — building the weapons systems that ensure conflicts never need to happen. Castelion is one of the few companies in the hypersonics space that has moved beyond concepts to actual production deliverables, with government contracts across multiple branches of the military and a $23M+ Navy order for 50 units in calendar year 2027.
Backed by over $469M in funding from top-tier investors including Andreessen Horowitz, Lightspeed Venture Partners, and General Catalyst, Castelion is scaling rapidly. The company is building what it anticipates will become the preeminent hypersonics campus in the country — including a $150M, 1,000-acre solid rocket motor manufacturing facility in Rio Rancho, New Mexico, alongside its headquarters in Torrance, California.
Castelion's culture is defined by technical excellence, ownership, and velocity. Engineers own meaningful subsystems on the vehicle and are responsible for driving their success. The company follows a responsible engineering model inspired by SpaceX, where individuals choose the highest-value work and are empowered to cultivate resources and partnerships to deliver results. The engineering bar is exceptionally high — attracting elite talent who want to be surrounded by other elite talent.
Other roles at Castelion
Refer someone
Know someone great for this role?
Share your link. If they get hired through Standout, you get $3,000.
Job details
Location
torrance, ca
Funding
Total raised
$464M
Last stage
Growth
Investors
Founders
What happens next.
No applications, no recruiter spam. Just the intro.
Confirm the fit
A few questions to make sure this role is the right shape for you. Two minutes.
I pitch you to the company
I write the intro, send it to the founder, and handle the back-and-forth.
A meeting lands on your calendar
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.
