Choose AI use cases worth testing, check data and delivery readiness, and define a focused pilot.
Typical output
Prioritised use cases, readiness review and pilot plan.
AI · Product · Architecture
What to build.How to deliver it.
I help founders and product leaders decide where AI fits, what to build next and how the systems should connect—before committing a team or budget.
Led personally by David BartasExperience: George Business · MONETA BankID · Founder of Investboard
01When to bring me in
A second perspective before a costly commitment.
Where AI fits
For founders weighing an AI idea before committing a team or budget.
What to build next
For product leaders resolving priorities, MVP scope and competing demands.
How systems connect
For technology leaders reviewing architecture, APIs and integration choices.
10+ years across product and technology · Banking, fintech and AI products · Prague, working across Europe. Meet David
02Services
Four ways to move a decision forward.
Decide what to build now, what to defer and how your product or platform should evolve.
Typical output
Product brief, MVP boundaries and a roadmap tied to business priorities.
Compare architecture and integration options for your systems, APIs, data flows and cloud platform.
Typical output
System and integration map, option comparison and architecture decisions.
Turn a technology change into sequenced work, clear ownership and delivery milestones.
Typical output
Delivery sequence, responsibilities, dependencies and review milestones.
03How I work
From the question to a plan your team can use.
- 01
Clarify
Define the decision, business goal and constraints.
- 02
Frame
Compare options, assumptions and trade-offs.
- 03
Design
Turn the chosen direction into a roadmap or system design.
- 04
Execute
Align ownership and support delivery where needed.
Selected experience
Strategy connected to shipped work.
01 / Product
Investboard
2025 – present
Bringing portfolio data, a personal mandate and decision history into one product.
02 / Corporate banking
George Business
Aug 2022 – Jun 2025
Payment lifecycle, transaction history and card reservations for Česká spořitelna’s corporate banking.
03 / Digital identity
BankID onboarding
Jun 2021 – Feb 2022
Solution architecture and integration of BankID into MONETA’s web and mobile onboarding.
A clear place to start
Your next decision.
Let’s work it through.
Choose a focused introduction or a longer working session. Every consultation is with David Bartas personally.
- Monday–Friday, 18:00–21:00 Berlin time
- Online via Google Meet
- Book at least 48 hours ahead. Google displays slots in your local time zone.
30 minutes
€100
Introduction
Bring one decision. Leave with a clearer next step.
A focused conversation to frame your AI, product or architecture question, review the constraints and decide where to start.
- Clarify the problem and priorities
- Discuss fit, scope and the next step
90 minutes
€250
Strategy session
Work through the options and build a practical plan.
A working session on a defined challenge: compare approaches, identify trade-offs and shape a plan for your product, AI initiative or technology architecture.
- Map options, dependencies and risks
- Agree priorities and an actionable plan
Choose a session, select an available time and add a few lines about your question. Google sends the confirmation and meeting details. These are the same booking pages used by InvestingStack.
Have a larger engagement in mind? Email your brief to discuss the scope. Reviews, workshops and delivery support are quoted separately.
A little preparation
Before you book.
Start with the question that matters most. A clear goal helps us make the time useful.
Which session should I choose?
Choose the 30-minute introduction to frame a question, discuss fit and identify the next step. Choose the 90-minute strategy session when you have a defined challenge and want to compare options, dependencies and priorities in more depth.
What should I prepare?
Bring one decision you need to make, the outcome you want and the main constraints: timing, budget, systems or team capacity. Add a short summary in the booking form. A roadmap, system diagram or product brief can help give the conversation context.
How do time zones and availability work?
Sessions are available Monday–Friday, 18:00–21:00 in Europe/Berlin, with at least 48 hours’ notice. Google shows available times in your local time zone and sends the confirmation and Google Meet details. Both websites use the same calendar, so a slot booked through InvestingStack is unavailable here too.
Can we work together beyond a consultation?
Yes. Architecture reviews, product and AI workshops, and delivery support can be scoped separately. Email a short brief with your goal, current situation, timing and the help you need. The next step is to agree the scope and fee.