Dewei Zhai

Two one-off sessions you can book directly.

Start with one concrete decision.

Below are two one-off sessions you can book directly. But I don't care much what the relationship is called: full-time, partnership, freelance, or a single paid session can all work. The label is not the point. What matters is whether I can create value for you and we can share that value in a way that feels fair to both of us.

Consulting products

For teams, founders & data leads

Data System Consultation

A practical second opinion on one data-system problem: architecture, migration, reliability, cost, governance, delivery, or an overloaded platform that needs simplifying.

75 minutes€149 incl. VAT
  • Up to 30 minutes of pre-session review
  • 75-minute working session focused on one decision
  • Concise follow-up with risks, open questions, and the next step
  • If deeper work is useful, a clearly scoped follow-on—not a sales pitch
Book & pay

For future freelancers

Freelance Transition Session

For experienced data and software professionals who want to start freelancing in the Netherlands. I share first-hand experience of the market, check your preparation, and give practical guidance on getting started.

75 minutes€99 incl. VAT
  • First-hand perspective on how Dutch freelance work actually operates
  • Review of your readiness, positioning, target clients, rate, and first offer
  • If I come across a suitable freelance opportunity, I will recommend it to you
Book & pay

How booking works

  1. 1.Choose a session and complete payment through Stripe.
  2. 2.After payment, you are redirected to the booking confirmation page.
  3. 3.Send your question, background, and three suitable times. I confirm the session within two business days.

No-risk guarantee

If the session does not meet your expectations, I will give you a full refund. No justification required.

Before you book

Send one question and the essential material before the session. If it falls outside my experience, I will say so and refund the booking rather than improvise expertise.

Scope and boundaries

I provide experience-based technical, business, and freelance guidance. A session clarifies a decision; it does not include implementation or a full architecture review, and it does not guarantee clients, income, or a particular technical outcome.

Need a deeper platform review?

Architecture reviews, platform diagnostics, and implementation work need a scoped brief rather than a checkout button.

Send a project brief →