Most hiring in the corporate world is built around competence. Can this person do the job? Have they done it before? Do they have the right qualifications, the right track record, the right references? Competence is measurable, defensible, and forms the basis of every corporate interview protocol.
At UHNW level, competence is the baseline. Trust is the product. Every candidate we present to a principal can, on paper, do the job. The CVs converge. What separates the right hire from the wrong one is not skill. It is judgement, discretion, and the capacity to be trusted with access to a life that most people will never see.
This article is written for clients hiring for the first time at this level, and for candidates trying to understand why the process is different. It covers how to assess for trust, the questions that work, the tests that do not, and why the most successful private placements are made on behavioural grounds, not technical ones.
A senior housekeeper has spent fifteen years in great houses. A senior EA has supported two UHNW principals. A Chief of Staff has worked in three family offices. Their CVs look identical to the next ten candidates in the pool. The skill is already there. Hiring on skill alone does not narrow the decision.
What narrows it is behaviour. How does the candidate treat the people around them when no one is watching? How do they handle pressure? How do they speak about a previous principal they found difficult? How do they manage their own emotional reactions to stress?
A PA who cannot hold a boundary under pressure will eventually lose the principal's trust. The candidate may be brilliant at diary, travel, and correspondence. None of it matters if a moment of stress causes them to over-share, over-react, or over-commit. Trust is compounded slowly and lost quickly. The hire needs to be assessed for the rare moments, not the everyday ones.
Years ago we were asked to place a senior EA for a principal running a well-known fund. The candidate pool was strong. All five finalists had worked at a hedge fund before. All five had the diary, the travel, and the inbox management down cold.
The principal's test was simple. He took each finalist to lunch and asked them to describe the single most difficult moment of their previous job. Three of them talked about a hard quarter or a tough boss. One talked about the stress of a particular deal. The fifth, the one he hired, described the moment she realised a colleague was leaking information to a competitor and had to decide whether to raise it. She described what she did, how she thought about it, what the outcome was, and what she would do differently.
The principal hired her because her answer revealed judgement under ambiguity, which is what he needed. The other candidates revealed that they had not been in a position to need that judgement, or that they had not reflected on it. He did not hire them because he did not trust them with the parts of his job that required it.
This kind of assessment cannot be run through a checklist. It has to be specific, behavioural, and open-ended. The candidates reveal themselves in how they describe their own judgement, not in how they describe their skills.
A structured competence interview will not surface trust. A behavioural interview will. The questions that work share three features: they ask about specifics, they invite self-reflection, and they leave space for the candidate to reveal judgement.
Tell me about a time you had to handle information you were not supposed to know. Strong candidates describe a specific moment, the trade-offs they faced, and what they decided. Weak candidates describe the policy or the procedure rather than their own behaviour.
Describe a previous principal you found difficult. The question is a test. A candidate who answers with names, personal details, or bitterness has failed. A candidate who answers with measured reflection on a challenging working relationship, without disclosing anything confidential, has passed.
What is the hardest decision you have made on behalf of someone else? This surfaces judgement under delegation. Candidates who cannot describe such a decision have not been trusted with real authority. Candidates who describe one in detail, and reflect on what they would do differently, have the seat's profile.
How do you handle a mistake you made? Look for specifics and ownership. Candidates who describe a mistake, what they did, and what they learned have the maturity that UHNW households require. Candidates who claim not to make mistakes, or who blame others, should be passed over.
What do you want your principal to know on day one? This question reveals how the candidate thinks about their own integration. Strong candidates talk about working style, communication preferences, and early-warning signs. Weak candidates talk about their skills.
Questions are only half of the process. Behaviour during the process itself is as informative as anything the candidate says.
Punctuality and preparation. A candidate who arrives late, unprepared, or without having researched the brief is showing how they will operate in the role. This is not a minor detail. It is a direct data point.
How they speak about other candidates. During multi-stage interviews, candidates sometimes comment on other candidates they have encountered in the process. Candidates who make negative remarks about peers have revealed something important. The best candidates speak neutrally about the competition.
How they follow up. A clear, concise, well-written follow-up email is a good sign. A long, elaborate, ingratiating follow-up is a warning. Silence is a question mark.
How they handle pressure questions. Some questions in the process should be deliberately uncomfortable: questions about salary expectations, about gaps in the CV, about difficult previous roles. How the candidate responds to these questions predicts how they will respond to difficult moments in the role.
Their questions back to us. Candidates who ask about the principal, the family, the structure, and the culture are preparing to succeed. Candidates who ask only about compensation, holiday, and benefits are preparing to compare offers.
Structured interviews surface candidate behaviour. References verify it. A strong interview with weak references should overturn the interview impression.
Reference calls at this level are not forms to be filled. They are conversations with people who worked closely with the candidate, usually previous principals, family office directors, or direct senior colleagues. The questions that produce useful answers are specific, not general.
Would you hire them again? For what role? At what salary? Why or why not?
Describe a moment when their judgement was tested. What happened?
What did they handle well? What did they handle badly.
Is there anything the next employer should know, in your honest opinion, that will help them succeed?
References who answer these questions quickly and specifically are trustworthy. References who offer only generic praise usually either do not know the candidate well or have something they are not saying.
Compensation is often overlooked as a trust signal. It should not be. If a candidate is taking a significant pay cut, we ask why. If the answer is necessity, the placement rarely lasts. Salary alignment is a retention decision, not just a budget line.
A candidate taking the same role for 30% less than they previously earned is in a difficult moment. They will accept the role, do their best, and leave within a year when a better offer arrives. The client will lose the investment in the onboarding. This is not a trust issue with the candidate. It is a structural issue with the hire. The fix is usually to understand the candidate's real number and either match it or find a different candidate.
The candidates who have earned trust in private roles share a set of behaviours in the job, not just in the interview.
They escalate the right things. Not everything. Not nothing. The right things.
They hold information. Confidential matters stay confidential. They do not test boundaries by dropping hints to peers.
They do not use proximity for personal gain. They do not name-drop the principal. They do not trade on access.
They disagree privately and deliver publicly. When they have a concern, they raise it with the principal directly, not with third parties.
They maintain composure. Under pressure, in crisis, in front of staff, guests, family, or advisers, they hold the same tone and standard.
None of this is measurable in an interview. It is observable in a career. References, track record, and reputation in a small community of peers reveal it over time.
Oplu interviews every candidate before presenting them to a client. Those interviews are designed to surface judgement, discretion, and behaviour under pressure, not just skill. Candidates who reveal indiscretion, name previous principals unprompted, or lack self-awareness do not reach the shortlist, regardless of how strong the CV is.
We reference with previous principals and family office directors, not HR. We ask the specific questions that produce specific answers. We pass on candidates who look good on paper but do not pass the trust assessment. We have told clients we could not present a shortlist for a brief because none of the qualifying candidates passed our trust bar. That conversation is hard. It is also the conversation clients come back for.
For current opportunities, see our job board. To discuss a search, get in touch.
By running behavioural interviews that surface judgement, discretion, and handling of pressure; by referencing with previous principals and directors, not HR; and by observing the candidate's conduct during the process itself, not only their answers. Competence is the baseline. Trust is what determines fit.
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