Interview scorecard template

Next-Generation Battery Engineer interview scorecard

Evaluate Next-Generation Battery 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 probe electrochemistry depth: cell chemistry, degradation mechanisms, thermal behaviour, and the safety limits they design against. Use the rubric to compare role-specific evidence consistently.

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engineering applied sciencebatteryelectrochemistryenergy storagematerials
TL;DR
For technical depth, look for evidence the candidate explains degradation and thermal mechanisms in depth, and the safety envelope they designed against. For work that shipped, look for evidence the candidate names cells or packs built and cycled, with measured energy density, cycle life, or safety results they owned. 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 electrochemistry depth: cell chemistry, degradation mechanisms, thermal behaviour, and the safety limits they design against.

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 degradation and thermal mechanisms in depth, and the safety envelope they designed against.

02
Evaluation factor

Work that shipped

30% weight

Look for cells or packs that were built and cycled, not only modelled, with real cycle-life and energy-density data.

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 cells or packs built and cycled, with measured energy density, cycle life, or safety results they owned.

03
Evaluation factor

Diagnosis under uncertainty

20% weight

Test how they diagnose a cell failure when the mechanism is buried and teardown is destructive.

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

Systematic failure analysis on a real cell, with what they eliminated and how they confirmed the mechanism.

04
Evaluation factor

Working across the org

15% weight

Check how they work with manufacturing, safety, and suppliers when a chemistry change ripples through the whole pack.

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

Coordinates chemistry changes across manufacturing, safety, and suppliers, with decisions documented.

Evidence-led prompts

Interview questions for a Next-Generation Battery Engineer

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

  1. 01

    Which battery chemistries and cell formats have you actually worked with, and what degradation mechanism dominated in each?

  2. 02

    What strategies have you used to improve energy density, and what did you give up to get it?

  3. 03

    When you select materials for a cell (cathode, anode, electrolyte, separator), what factors decide it?

  4. 04

    Have you worked on thermal management for cells or packs? Walk me through one design you owned.

  5. 05

    Pick the most challenging battery design project you have worked on and walk me through one real plot or artefact from it.

See the complete Next-Generation Battery Engineer question set
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