Interview scorecard template

Quantum Key Distribution Satellite Network Manager interview scorecard

Evaluate Quantum Key Distribution Satellite Network Manager candidates across 4 weighted areas: theoretical command, from theory to hardware or code, research judgement, and explaining it to non-specialists. Theoretical command leads at 35%, so check command of BB84 and decoy-state protocols, entanglement-based E91 links, finite-key security bounds, QBER thresholds, and how they treat. Use the rubric to compare role-specific evidence consistently.

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frontier research deep techbb84 decoy stateoptical link budgetquantum key distributionsatellite ground station
TL;DR
For theoretical command, look for evidence the candidate explains decoy-state parameter choice and finite-key secret rate limits fluently, and names the side-channel attacks their threat model excludes. For from theory to hardware or code, look for evidence the candidate names specific missions or testbeds (Micius-class, ESA SAGA, fibre trusted-node links) with measured secret key rates per pass. 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

Theoretical command

35% weight

Check command of BB84 and decoy-state protocols, entanglement-based E91 links, finite-key security bounds, QBER thresholds, and how they treat side-channel assumptions in device-dependent QKD.

Evidence to listen for

  • Explains the underlying theory at the level the role demands, and can go a layer deeper when pushed
  • Knows which results are established and which are contested
  • Distinguishes their own contribution from the field's
  • Comfortable saying where the theory runs out

Five-point scoring guide

1
Poor

Recites terminology without understanding; cannot go one layer deeper.

2
Needs Improvement

Surface familiarity; conflates established results with speculation.

3
Satisfactory

Solid grasp of the core theory; thin at the frontier.

4
Very Good

Strong command; separates settled results from open questions.

5
Excellent

Explains decoy-state parameter choice and finite-key secret rate limits fluently, and names the side-channel attacks their threat model excludes.

02
Evaluation factor

From theory to hardware or code

30% weight

Probe hardware they have actually operated: SNSPD or InGaAs detectors, acquisition and tracking pointing systems, ground station telescopes, time-tagging electronics, and post-processing stacks for sifting and privacy amplification.

Evidence to listen for

  • Has built, simulated, or run something real, not only published about it
  • Knows the gap between the idealised model and the actual apparatus or system
  • Names the practical constraint that dominates in real conditions
  • Can describe a result that did not match prediction

Five-point scoring guide

1
Poor

Purely theoretical; no contact with implementation.

2
Needs Improvement

Some exposure but unaware of practical constraints.

3
Satisfactory

Has implemented work; understands the main real-world limits.

4
Very Good

Strong practical record; articulate about theory-versus-reality gaps.

5
Excellent

Names specific missions or testbeds (Micius-class, ESA SAGA, fibre trusted-node links) with measured secret key rates per pass.

03
Evaluation factor

Research judgement

20% weight

Assess how they set link budgets, choose downlink wavelengths, plan pass scheduling around cloud cover and moonlight, and decide when a demonstrator is ready for operational service.

Evidence to listen for

  • Chooses problems by tractability and value, not novelty alone
  • Knows when to abandon a line of work
  • Reads and evaluates others' results critically
  • Can say what would falsify their own approach

Five-point scoring guide

1
Poor

Chases novelty; no sense of tractability or when to stop.

2
Needs Improvement

Weak problem selection; persists past the point of value.

3
Satisfactory

Reasonable judgement within a defined programme.

4
Very Good

Selects problems well and knows when to abandon a line.

5
Excellent

Shows numeric reasoning on loss budgets and background counts, and describes an experiment or orbit they cancelled with justification.

04
Evaluation factor

Explaining it to non-specialists

15% weight

Test how they brief telecom operators, national security customers, and regulators on why QKD adds value beyond post-quantum cryptography, including honest limits and trusted-node caveats.

Evidence to listen for

  • Explains the work to an engineer, an executive, or a funder without either mystifying or dumbing it down
  • Writes clearly
  • Collaborates across disciplines
  • Makes the case for resources in terms the audience cares about

Five-point scoring guide

1
Poor

Cannot communicate outside their specialism.

2
Needs Improvement

Explanation is either impenetrable or hollow.

3
Satisfactory

Adequate with technical peers; less effective with lay audiences.

4
Very Good

Explains clearly to specialists and non-specialists alike.

5
Excellent

Frames key rate and availability in customer terms, concedes PQC overlap candidly, and cites briefings to non-physicist procurement boards.

Evidence-led prompts

Interview questions for a Quantum Key Distribution Satellite Network Manager

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

  1. 01

    What experience do you have with satellite communications and their security?

  2. 02

    How familiar are you with ground station operations and integration?

  3. 03

    Can you describe implementing a new protocol or technology for secure communications?

  4. 04

    Can you explain quantum key distribution and where it genuinely helps?

  5. 05

    What is your experience with cryptographic algorithms in operational networks?

See the complete Quantum Key Distribution Satellite Network Manager question set
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