Interview scorecard template

Corrosion Control Engineer interview scorecard

Evaluate Corrosion Control Engineer candidates across 4 weighted areas: technical depth, work that shipped, diagnosis under uncertainty, and working across the org. Technical depth leads at 35%, so check command of cathodic protection design: rectifier sizing, anode bed selection, IR drop correction, 100 mV polarization criteria, plus AMPP/NACE CP2 or CP3 credentials. Use the rubric to compare role-specific evidence consistently.

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engineering applied scienceampp nacecathodic protectioncoatingscorrosion inhibitorspipeline integrity
TL;DR
For technical depth, look for evidence the candidate explains CP criteria and interference mitigation precisely, cites AMPP certification level, and links design choices to soil resistivity and current demand data. For work that shipped, look for evidence the candidate names specific systems commissioned or rehabilitated, with survey mileage, remediation digs completed, and measurable reduction in corrosion-related leaks or wall loss. 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

Check command of cathodic protection design: rectifier sizing, anode bed selection, IR drop correction, 100 mV polarization criteria, plus AMPP/NACE CP2 or CP3 credentials and 49 CFR 192/195 criteria.

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 CP criteria and interference mitigation precisely, cites AMPP certification level, and links design choices to soil resistivity and current demand data.

02
Evaluation factor

Work that shipped

30% weight

Probe assets they have actually protected: tank bottoms, buried pipeline mileage, offshore jackets. Ask for CIS or ECDA programs run, coating specs written, and inhibitor injection rates set.

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 systems commissioned or rehabilitated, with survey mileage, remediation digs completed, and measurable reduction in corrosion-related leaks or wall loss.

03
Evaluation factor

Diagnosis under uncertainty

20% weight

Test how they diagnose unclear metal loss: interpreting ILI anomaly digs, distinguishing MIC from CO2 or under-deposit attack, tracing AC or stray current interference sources.

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 through a real anomaly investigation, evidence weighed (coupons, bacteria cultures, potential logs), and how the root cause was confirmed rather than assumed.

04
Evaluation factor

Working across the org

15% weight

Assess how they work with operations, integrity, and inspection teams: getting rectifier repairs prioritised, justifying recoat budgets, defending findings to regulators or auditors.

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 convincing operations to fund remediation, with the risk case presented and the documented outcome at the next inspection cycle.

Evidence-led prompts

Interview questions for a Corrosion Control Engineer

Use these prompts to surface evidence for the weighted factors above and compare candidates against the same role-specific criteria.

  1. 01

    What structures or materials have you worked on that required corrosion control?

  2. 02

    What types of corrosion studies have you been involved in?

  3. 03

    What is your experience with corrosion control engineering?

  4. 04

    Can you discuss the most challenging corrosion problem you have addressed?

  5. 05

    Have you been involved in failure investigation related to corrosion?

See the complete Corrosion Control Engineer question set
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