A written mock interview in chat — no call, no speaking under time pressure. The person across from you has exactly what a recruiter would have when reviewing your application: your submitted material, nothing more. They ask their questions from it — and you answer at your own pace: think, phrase, refine. Afterwards a feedback report assesses every answer and also shows you the strengths you left on the table.
You can practice every round at every difficulty — and the difficulty is exactly what makes the difference. Benevolent to warm up, when you’re putting your answers into words for the first time. Hard for reality, when you want to know where it hurts. The same round feels different at each level.
| Round ╲ difficulty | 🙂Benevolent To warm up Friendly and patient. Gives you room and helps you along when you get stuck. | 😐Neutral The reality check Matter-of-fact, like most real interviews. Follows up when answers get vague, yet stays fair. | 🧊Hard For the real thing Critical and demanding. Probes at gaps and tests how you hold up under pressure. |
|---|---|---|---|
| Phone interview The first filter: key facts, motivation, availability | Easy start — open questions, plenty of encouragement, no time pressure | Matter-of-fact quick check — does the profile fit, is the motivation there | Rapid fire — short questions, little patience for rambling |
| HR interview Background, strengths & weaknesses, culture fit | Patient getting-to-know-you — room for your through-line | Fair follow-up — asks for evidence when it gets vague | Cracks get exposed — gaps in your track record are put on the table |
| Technical interview Depth over breadth: your projects, your craft | Digging in together — curious, helps you get to the point | Probing questions — wants the how behind the what | Relentless follow-up — keeps digging until the substance shows |
| Salary negotiation Numbers, leeway, timing — which almost no one practices | Gentle approach — carefully asks about your expectation | Clear haggling — names a budget, expects a justification | Hard counter — pushes on the number, tests whether you hold |
Interview simulation is included in Professional and above. In Free and Core you see a preview of the rounds and difficulty levels.
The simulation follows the arc of a real German-language interview — not a loose list of questions. The person across from you keeps the thread from the greeting to the close, including the phase where it’s your turn.
The conversation is led by someone who only knows your material. The report afterwards knows both sides — your submitted material and your full profile. That’s why it sees not only how you answered, but also what you could have said.
A chatbot you tell to “play the interviewer” throws all your knowledge into one pot and asks with everything you give it. A real conversation is different — and JACVault rebuilds exactly that difference.
A one-pot prompt knows everything you type in and asks unrealistically as a result. The person across from you here has only your submitted material — so they ask like the real recruiter, with the same blind spots.
Not one mode for everyone: benevolent, neutral or hard. You decide how much pressure you practice — and a hard technical interview digs noticeably deeper than a benevolent one.
In chat you can think, phrase and refine without anyone hearing the silence. That’s exactly how you build the sentences that then land in the real conversation — without the fear of the first time.
The report knows your full profile and your submitted material. That’s why it shows not only what was weak, but also the strengths you never even played in the conversation.
No. It’s a written conversation in chat — you read the questions and type your answers. No call, no microphone, no speaking under time pressure. “Phone interview” is just the name of one of the rounds; that too you practice in writing. The upside: you can think, phrase and refine, instead of having to find the right words in the moment.
Exactly what a recruiter has in front of them when reviewing your application: your optimized CV, your cover letter, the job posting and publicly available company info. Nothing more. What lives only in your full profile isn’t known to the person across from you in the conversation — that only reappears in the feedback.
Hard means critical and demanding: the person across from you interrupts evasions, probes at gaps and tests how you hold up under pressure. It remains matter-of-fact and fair — it’s not about showing you up, but about making sure nothing surprises you in the real conversation. To warm up you choose benevolent, for the reality check neutral.
The simulation builds on the dossier from your interview preparation — the analysis of the same application the questions and your context come from. Once the preparation is done, you can start practicing. That’s how the two belong together: first understand what matters — then practice saying it.
Go to interview preparationUp to five simulations per application — enough to work through different rounds and difficulty levels. Each conversation runs across up to twelve answers from you, so long enough for a real arc from the greeting to your own questions.
It’s an estimate of how prepared you are going into this conversation — on a scale of 1 to 10, from the perspective of the person across from you. It is deliberately not a guarantee of success or a job: no one can predict a conversation. It’s a measure that shows you whether your next round runs better.
Interview simulation is part of Professional and the higher plans. In Free and Core you see a preview of the rounds and difficulty levels; the practicing itself and the feedback report are unlocked from Professional.
The full journey: how JACVault worksSet up your profile, paste in the job — and JACVault builds you a CV and cover letter that get past the ATS and the recruiter. Your first application is on the house.
First application free · no credit card required