frontier research deep techdifferential privacyhomomorphic encryptionsecure multiparty computationtrusted execution environments
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
Probe command of MPC protocols (garbled circuits, secret sharing), lattice-based FHE schemes such as CKKS or BFV, and formal differential privacy budgets including composition and sensitivity analysis.
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
States concrete security models (semi-honest versus malicious), derives epsilon-delta budgets unprompted, and names the assumptions each protocol actually relies on.
02
Evaluation factor
From theory to hardware or code
30% weight
Ask which libraries they wrote or extended: OpenFHE, SEAL, MP-SPDZ, tf-encrypted, OpenDP, or SGX/SEV enclaves, plus measured latency and ciphertext expansion figures.
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
Points to merged code or deployed pipelines with real benchmarks: bootstrapping cost, packing strategy, wall-clock time on production-sized datasets.
03
Evaluation factor
Research judgement
20% weight
Test how they choose between DP noise, secure aggregation, and enclaves for a given threat model, and when they judged a privacy technique not worth the compute cost.
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
Frames choices against adversary capability and utility loss, and cites a case where they rejected a fashionable primitive for sound reasons.
04
Evaluation factor
Explaining it to non-specialists
15% weight
Assess how they explain privacy loss to legal, product, and regulators mapping guarantees to GDPR, HIPAA de-identification, or internal privacy review sign-off.
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
Translates epsilon values and side-channel risk into plain business language without overclaiming anonymity, and has convinced non-technical reviewers to approve.
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