Development Test Engineer
Castelion · Torrance, CA · 1 mo ago
EngineeringFull-time
We need to output HTML fragment with sections for headings: About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule. Only include sections if posting has real specific content. We need to parse the posting.
The posting includes:
- About Castelion (company description) - but we are not to repeat job title as heading. The "About Castelion" could be considered "About the role"? Actually "About the role" is a typical heading. The posting includes "About Castelion" describing company. We could treat that as "About the role" content? The instruction: use for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). So we should map content to those headings if present.
We have:
- About Castelion: description of company mission. Could be placed under "About the role" (maybe). Or we could omit if not exactly about role. But we likely should include "About the role" with that description.
- Responsibilities: bullet list of responsibilities (many lines). We'll put under
for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). So we should map content to those headings if present.
We have:
- About Castelion: description of company mission. Could be placed under "About the role" (maybe). Or we could omit if not exactly about role. But we likely should include "About the role" with that description.
- Responsibilities: bullet list of responsibilities (many lines). We'll put under Responsibilities
with - each.
- Basic Qualifications: likely under "Requirements" or "Qualifications". The posting has "Basic Qualifications" and "Preferred Skills And Experience". Also "Leadership Qualities". Also "ITAR Requirements". Also "All employees are granted long-term stock incentives...". Also "All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year." That's benefits.
We need to decide sections:
- Requirements: could include Basic Qualifications (Bachelors degree, 3+ years experience, etc.)
- Qualifications: maybe Preferred Skills And Experience? Or we could combine Basic Qualifications under Requirements and Preferred under Skills.
- Skills: could include Preferred Skills And Experience.
- Benefits: includes stock incentives, medical/vision/dental, 4 weeks PTO.
- Pay: not mentioned; no salary info. So we should NOT include Pay section.
- Schedule: not mentioned; no schedule info. So omit.
- Leadership Qualities: maybe could be part of Skills or Qualifications? But we have a specific heading "Leadership Qualities" not in the list. The instruction says use those headings only; we should not create extra headings. So we need to fold Leadership Qualities content into appropriate existing sections, maybe under Skills or Qualifications. Since it's about qualities, we could put under Skills (maybe as a subsection? but we only have
- for lists). Could incorporate as list items under Skills.
- ITAR Requirements: also need to be included somewhere; maybe under Requirements (as a requirement). Could be a list item.
- Also note: "All employees are granted long-term stock incentives as part of their employment at Castelion." and "All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year." That's benefits.
We must preserve all substantive information; do not invent or summarize away detail. So we need to include all details from the posting, except boilerplate like cookie/navigation/legal/EEO/equal-opportunity/scam-warning, duplicated lines, application instructions. The posting includes ITAR Requirements and EEO statement (the paragraph about employment governed on basis of competence...). That's EEO boilerplate; we should remove it. Also "All employees are granted long-term stock incentives..." is benefits, keep.
We need to output only HTML fragment, no /, no markdown fences.
Let's extract content:
About Castelion paragraph:
"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 weapons systems to give America and its Allies a definitive edge and deter future conflicts."
That's about the company; we can put under About the role.
Responsibilities list (each line starts with a verb). Let's capture each:
- Own development and qualification testing for avionics, mechanisms, propulsion, structures, and integrated vehicle subsystems
- Design and build test fixtures, ground support equipment (GSE), and instrumentation for benchtop, environmental, and system-level tests
- Author test plans, procedures, and reports aligned with program requirements and qualification intent
- Execute vibration, thermal, shock, EMI/EMC, functional, and performance testing
- Instrument hardware and vehicles with sensors (strain, temp, pressure, accel, current/voltage) and DAQ systems
- Lead anomaly detection, root-cause analysis, and corrective action closure
- Partner closely with design engineering to feed test results back into rapid design iteration
- Support integration operations, range testing, and flight test campaigns as needed
- Maintain rigorous configuration control, data management, and test documentation
- Improve test infrastructure, automation, and data quality to increase test cadence and learning velocity
We'll put each as
- .
Basic Qualifications list:
- Bachelors degree in Mechanical, Electrical, Aerospace, or related engineering field
- 3+ years of hands-on development and test experience (academic, industry, or both)
- Experience planning and executing hardware tests from concept through report-out
- Proficiency with test instrumentation and lab equipment (DAQs, oscilloscopes, power supplies, sensors)
- Ability to design and fabricate simple test fixtures and GSE (CAD + shop familiarity)
- Strong debugging, troubleshooting, and root-cause analysis skills
- Comfortable working across disciplines in high-ownership environments
- Willingness to support extended hours, weekends, travel, and on-site operations during critical test campaigns
- Operates with high ownership, bias to action, attention to detail, and a test-driven engineering mindset
- Comfortable working in fast-moving environments where hardware is the source of truth
Preferred Skills And Experience list:
- Aerospace, missile, launch vehicle, space, or defense hardware testing
- Environmental testing: vibration, thermal-vacuum, thermal cycling, shock
- Test automation and data analysis using Python, MATLAB, or similar
- Flight test, range operations, or hardware-in-the-loop (HIL) experience
- Familiarity with requirements verification, qualification evidence, and failure tracking
- Hands-on machining, wiring, soldering, or rapid prototyping experience
Leadership Qualities list (multiple paragraphs). Let's extract each bullet-like sentence:
- 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.
We need to keep these as list items under Skills perhaps.
ITAR Requirements paragraph:
"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."
We need to keep this; could be under Requirements as a list item.
Benefits:
- All employees are granted long-term stock incentives as part of their employment at Castelion.
- All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.
We'll put under Benefits.
Now, we need to decide which sections to include:
- About the role: yes (company description)
- Responsibilities: yes
- Requirements: yes (Basic Qualifications + ITAR Requirements)
- Qualifications: maybe we could put Preferred Skills And Experience under Qualifications? But we also have Skills section. The instruction list includes both Qualifications and Skills. We could put Basic Qualifications under Requirements, Preferred Skills under Skills, and Leadership Qualities also under Skills (or Qualifications). But we need to avoid duplication. Let's map:
Requirements: Basic Qualifications + ITAR Requirements.
Skills: Preferred Skills And Experience + Leadership Qualities (maybe also some other skills). That seems reasonable.
Benefits: as described.
We should not include Pay or Schedule.
Now ensure we don't repeat any content inadvertently.
We need to output HTML:
About the role
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 weapons systems to give America and its Allies a definitive edge and deter future conflicts.
Responsibilities
- Own development and qualification testing for avionics, mechanisms, propulsion, structures, and integrated vehicle subsystems
- Design and build test fixtures, ground support equipment (GSE), and instrumentation for benchtop, environmental, and system-level tests
- Author test plans, procedures, and reports aligned with program requirements and qualification intent
- Execute vibration, thermal, shock, EMI/EMC, functional, and performance testing
- Instrument hardware and vehicles with sensors (strain, temp, pressure, accel, current/voltage) and DAQ systems
- Lead anomaly detection, root-cause analysis, and corrective action closure
- Partner closely with design engineering to feed test results back into rapid design iteration
- Support integration operations, range testing, and flight test campaigns as needed
- Maintain rigorous configuration control, data management, and test documentation
- Improve test infrastructure, automation, and data quality to increase test cadence and learning velocity
Requirements
- Bachelors degree in Mechanical, Electrical, Aerospace, or related engineering field
- 3+ years of hands-on development and test experience (academic, industry, or both)
- Experience planning and executing hardware tests from concept through report-out
- Proficiency with test instrumentation and lab equipment (DAQs, oscilloscopes, power supplies, sensors)
- Ability to design and fabricate simple test fixtures and GSE (CAD + shop familiarity)
- Strong debugging, troubleshooting, and root-cause analysis skills
- Comfortable working across disciplines in high-ownership environments
- Willingness to support extended hours, weekends, travel, and on-site operations during critical test campaigns
- Operates with high ownership, bias to action, attention to detail, and a test-driven engineering mindset
- Comfortable working in fast-moving environments where hardware is the source of truth
- 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.
Skills
- Aerospace, missile, launch vehicle, space
- for lists). Could incorporate as list items under Skills. - ITAR Requirements: also need to be included somewhere; maybe under Requirements (as a requirement). Could be a list item. - Also note: "All employees are granted long-term stock incentives as part of their employment at Castelion." and "All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year." That's benefits. We must preserve all substantive information; do not invent or summarize away detail. So we need to include all details from the posting, except boilerplate like cookie/navigation/legal/EEO/equal-opportunity/scam-warning, duplicated lines, application instructions. The posting includes ITAR Requirements and EEO statement (the paragraph about employment governed on basis of competence...). That's EEO boilerplate; we should remove it. Also "All employees are granted long-term stock incentives..." is benefits, keep. We need to output only HTML fragment, no /, no markdown fences. Let's extract content: About Castelion paragraph: "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 weapons systems to give America and its Allies a definitive edge and deter future conflicts." That's about the company; we can put under About the role. Responsibilities list (each line starts with a verb). Let's capture each: - Own development and qualification testing for avionics, mechanisms, propulsion, structures, and integrated vehicle subsystems - Design and build test fixtures, ground support equipment (GSE), and instrumentation for benchtop, environmental, and system-level tests - Author test plans, procedures, and reports aligned with program requirements and qualification intent - Execute vibration, thermal, shock, EMI/EMC, functional, and performance testing - Instrument hardware and vehicles with sensors (strain, temp, pressure, accel, current/voltage) and DAQ systems - Lead anomaly detection, root-cause analysis, and corrective action closure - Partner closely with design engineering to feed test results back into rapid design iteration - Support integration operations, range testing, and flight test campaigns as needed - Maintain rigorous configuration control, data management, and test documentation - Improve test infrastructure, automation, and data quality to increase test cadence and learning velocity We'll put each as
- .
Basic Qualifications list:
- Bachelors degree in Mechanical, Electrical, Aerospace, or related engineering field
- 3+ years of hands-on development and test experience (academic, industry, or both)
- Experience planning and executing hardware tests from concept through report-out
- Proficiency with test instrumentation and lab equipment (DAQs, oscilloscopes, power supplies, sensors)
- Ability to design and fabricate simple test fixtures and GSE (CAD + shop familiarity)
- Strong debugging, troubleshooting, and root-cause analysis skills
- Comfortable working across disciplines in high-ownership environments
- Willingness to support extended hours, weekends, travel, and on-site operations during critical test campaigns
- Operates with high ownership, bias to action, attention to detail, and a test-driven engineering mindset
- Comfortable working in fast-moving environments where hardware is the source of truth
Preferred Skills And Experience list:
- Aerospace, missile, launch vehicle, space, or defense hardware testing
- Environmental testing: vibration, thermal-vacuum, thermal cycling, shock
- Test automation and data analysis using Python, MATLAB, or similar
- Flight test, range operations, or hardware-in-the-loop (HIL) experience
- Familiarity with requirements verification, qualification evidence, and failure tracking
- Hands-on machining, wiring, soldering, or rapid prototyping experience
Leadership Qualities list (multiple paragraphs). Let's extract each bullet-like sentence:
- 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.
We need to keep these as list items under Skills perhaps.
ITAR Requirements paragraph:
"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."
We need to keep this; could be under Requirements as a list item.
Benefits:
- All employees are granted long-term stock incentives as part of their employment at Castelion.
- All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.
We'll put under Benefits.
Now, we need to decide which sections to include:
- About the role: yes (company description)
- Responsibilities: yes
- Requirements: yes (Basic Qualifications + ITAR Requirements)
- Qualifications: maybe we could put Preferred Skills And Experience under Qualifications? But we also have Skills section. The instruction list includes both Qualifications and Skills. We could put Basic Qualifications under Requirements, Preferred Skills under Skills, and Leadership Qualities also under Skills (or Qualifications). But we need to avoid duplication. Let's map:
Requirements: Basic Qualifications + ITAR Requirements.
Skills: Preferred Skills And Experience + Leadership Qualities (maybe also some other skills). That seems reasonable.
Benefits: as described.
We should not include Pay or Schedule.
Now ensure we don't repeat any content inadvertently.
We need to output HTML:
About the role
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 weapons systems to give America and its Allies a definitive edge and deter future conflicts.
Responsibilities
- Own development and qualification testing for avionics, mechanisms, propulsion, structures, and integrated vehicle subsystems
- Design and build test fixtures, ground support equipment (GSE), and instrumentation for benchtop, environmental, and system-level tests
- Author test plans, procedures, and reports aligned with program requirements and qualification intent
- Execute vibration, thermal, shock, EMI/EMC, functional, and performance testing
- Instrument hardware and vehicles with sensors (strain, temp, pressure, accel, current/voltage) and DAQ systems
- Lead anomaly detection, root-cause analysis, and corrective action closure
- Partner closely with design engineering to feed test results back into rapid design iteration
- Support integration operations, range testing, and flight test campaigns as needed
- Maintain rigorous configuration control, data management, and test documentation
- Improve test infrastructure, automation, and data quality to increase test cadence and learning velocity
Requirements
- Bachelors degree in Mechanical, Electrical, Aerospace, or related engineering field
- 3+ years of hands-on development and test experience (academic, industry, or both)
- Experience planning and executing hardware tests from concept through report-out
- Proficiency with test instrumentation and lab equipment (DAQs, oscilloscopes, power supplies, sensors)
- Ability to design and fabricate simple test fixtures and GSE (CAD + shop familiarity)
- Strong debugging, troubleshooting, and root-cause analysis skills
- Comfortable working across disciplines in high-ownership environments
- Willingness to support extended hours, weekends, travel, and on-site operations during critical test campaigns
- Operates with high ownership, bias to action, attention to detail, and a test-driven engineering mindset
- Comfortable working in fast-moving environments where hardware is the source of truth
- 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.
Skills
- Aerospace, missile, launch vehicle, space