Evaluate Composite Materials Specialist candidates across 4 weighted areas: technical depth, work that shipped, diagnosis under uncertainty, and working across the org. Technical depth leads at 35%, so probe depth in laminate theory, prepreg versus wet layup, resin chemistry (epoxy, BMI, cyanate ester), cure kinetics, and interpreting CTE mismatch or fibre volume. Use the rubric to compare role-specific evidence consistently.
For technical depth, look for evidence the candidate explains ply schedule choices, autoclave cure profiles, and Tg targets with numbers, citing test coupon data rather than textbook generalities. For work that shipped, look for evidence the candidate names specific parts shipped, the tooling and bagging approach used, and how scrap or cycle time moved after their involvement.
Apply the written 1–5 anchors to every answer, record the evidence behind each rating, and use the factor weights to reach a consistent overall assessment.
Complete evaluation framework
What to assess and how to score it
Review the evidence signals before interviewing. Then use the anchored descriptions—not instinct alone—to choose the score that best matches each answer.
01
Evaluation factor
Technical depth
35% weight
Probe depth in laminate theory, prepreg versus wet layup, resin chemistry (epoxy, BMI, cyanate ester), cure kinetics, and interpreting CTE mismatch or fibre volume fraction data.
Evidence to listen for
Explains the physics or mechanism behind their work, not just the tooling
Names the standards, tolerances, and constraints they designed against
Can defend a design decision under follow-up questions
Distinguishes what they personally engineered from what the team delivered
Five-point scoring guide
1
Poor
Cannot explain the fundamentals of their own stated specialism.
2
Needs Improvement
Knows the vocabulary but not the underlying mechanism; struggles under follow-ups.
3
Satisfactory
Solid working knowledge for the role; depth thins out on edge cases.
4
Very Good
Strong command of the domain; explains trade-offs and defends decisions well.
5
Excellent
Explains ply schedule choices, autoclave cure profiles, and Tg targets with numbers, citing test coupon data rather than textbook generalities.
02
Evaluation factor
Work that shipped
30% weight
Ask for parts they took from tooling design through first article: aerospace secondary structure, pressure vessels, or automotive panels, with rate, scrap rate, and qualification status.
Evidence to listen for
Names specific programmes, parts, or systems that reached production or field use
States their own scope inside the project
Can give measured outcomes: yield, cycle time, cost, failure rate
Explains what went wrong and what they changed
Five-point scoring guide
1
Poor
No delivered work; experience is coursework, lab-only, or purely observational.
2
Needs Improvement
Contributed to projects but cannot say what shipped or what their part was.
3
Satisfactory
Has delivered real work; outcomes described without numbers.
4
Very Good
Names shipped work and their scope, with some measured results.
5
Excellent
Names specific parts shipped, the tooling and bagging approach used, and how scrap or cycle time moved after their involvement.
03
Evaluation factor
Diagnosis under uncertainty
20% weight
Test how they chase porosity, delamination, wrinkling, or bond line failures using ultrasonic C-scan, thermography, cross sections, and DSC or DMA on suspect cure.
Evidence to listen for
Describes a real failure they chased to root cause
Shows a method: isolate variables, reproduce, measure, eliminate
Distinguishes correlation from cause
Says what they ruled out and why, not only what the answer turned out to be
Five-point scoring guide
1
Poor
No diagnostic method; guesses or escalates immediately.
2
Needs Improvement
Trial and error with no structure; cannot explain how they narrowed the cause.
3
Satisfactory
Reasonable method on familiar problems; less structured on novel ones.
4
Very Good
Clear systematic approach with a real root-cause story.
5
Excellent
Walks a real defect investigation end to end, linking NDT indications to a root cause in process, material, or tool, then verifying the fix.
04
Evaluation factor
Working across the org
15% weight
Assess collaboration with stress analysts, quality on AS9100 or NADCAP audits, material suppliers on allowables, and shop floor laminators writing usable work instructions.
Evidence to listen for
Explains technical constraints to non-technical stakeholders without condescension
Has negotiated scope, cost, or timeline with manufacturing, product, or suppliers
Documents decisions so others can act on them
Takes review feedback without defensiveness
Five-point scoring guide
1
Poor
Cannot communicate outside their specialism; dismissive of other functions.
2
Needs Improvement
Communication gaps cause rework; avoids stakeholder contact.
3
Satisfactory
Works adequately with other teams; documentation is thin.
4
Very Good
Communicates clearly across functions; reliable collaborator.
5
Excellent
Describes translating stress requirements into buildable layups and coaching technicians, with evidence of accepted process specs or MRB dispositions.
Evidence-led prompts
Interview questions for a Composite Materials Specialist
Use these prompts to surface evidence for the weighted factors above and compare candidates against the same role-specific criteria.
01
Are you comfortable working with different composite materials such as carbon fibre or fibreglass?
02
Can you describe your familiarity with composite manufacturing processes?
03
Are you familiar with the tests used to validate the properties of composite materials?
04
Can you describe a project where you used composite materials to solve a complex problem?
05
Have you handled a project where you oversaw the full lifecycle of a composite part?
