How do I prepare for a technical interview?

It helps to know what the Swiss version of this round is descended from. In the federal system of professional qualifications, the Fachgespräch is a defined examination format. In the professional examination for Technische Kaufleute, one examination part is a personal portfolio, a presentation and a Fachgespräch, held orally, and the examiners' job is described as conducting a structured Fachgespräch and producing an assessment that is technically grounded, fair and traceable. A second oral part is built on practice-based case examples with situational, competence-oriented questioning.

That vocabulary is the format. The conversation starts from something you produced, works towards the reasoning behind it, follows a prepared grid so that every candidate is asked comparably, and scores competence rather than recall. Around 260 professional examinations and 160 advanced professional examinations are currently regulated in Switzerland, and admission to one requires a federal vocational certificate or an equivalent qualification plus several years of experience in the field.

So the person across the table has very likely sat this format themselves. Two practical consequences follow. Volunteering a definition when you were asked for a decision reads as evasion. And an unsupported claim is expensive: in a structured round, the follow-up question to "I know Kubernetes" is always "tell me about a time it broke".

• English-language adverts are the most explicit about the technical bar. Of those on our site, 13.7 percent name a concrete system — the highest of the four advert languages — 12.4 percent use expertise vocabulary such as specialist, in-depth or expert, 14.8 percent name a degree and 2.3 percent a doctorate.
• They are also the ones that state the number. 13.1 percent of English-language adverts give a figure in years of experience. In German-language adverts that share is 0.5 percent; the word mehrjährig, meaning several years, does the same job in another 1.2 percent and commits to nothing. If you are reading a German advert, the years bar exists — it is simply checked in the room rather than printed.
• The subject of the round inverts across trades. IT adverts name a system in 29.1 percent of cases and a formal qualification in 10.1 percent. Nursing adverts name a system in 1.3 percent and a qualification in 34.5 percent. Hospitality sits at 29.7 percent and construction at 28.5 percent for qualifications, against 16.0 percent across all adverts.
• Named standards appear in 1.1 percent of adverts overall but 6.1 percent of lab, chemistry and pharma roles, where GMP alone accounts for 4.5 percent. In those fields the technical round is largely a conversation about working inside a regulated framework.
• One name is rarely enough. Of all adverts that name any system, 22.7 percent name at least two; among IT adverts that name one, 35.5 percent name two or more. The characteristic question is not whether you know a tool but how you combined two of them.

Market figures come from a count of the adverts live on our site on 23 August 2026. Shares for named systems, standards, qualifications and customer language refer to the roughly three quarters of adverts that carry a short description; occupational fields are assigned from the job title and may overlap. Because that short description is shorter than the employer's own posting, every share should be read as a floor and above all in comparison with the others. Language shares refer to the adverts in each field that state a language requirement at all. The description of the examination format reflects one examination body's own published call for examiners and the account given by the State Secretariat for Education, Research and Innovation; it describes the federal system of professional qualifications, not the procedure of every employer in a hiring process. Legal points are not legal advice; in an individual case your contract, any applicable collective agreement and the competent authority govern.

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