HB Global

Hasan Burak Taşyürek Senior Software Engineer

Know what to change.
Keep what already works.

Technical assessment and engineering ownership for founders whose software already carries revenue. Work directly with me to understand the risks and decide what to do next.

Discuss your decision See the work behind it

Your first note starts a conversation. I reply within two working days.
Paid work starts with an agreed scope, fee, timing, and payment terms.

$3.4M / yearPayment flow audited before modernization. 4.5 yearsBuilding and running a subscription platform. 110 → 31 findingsLess review noise on an annotated sample deck.

Which decision is holding you up?

For founders and product leaders responsible for systems people already rely on.

The system works.
Changing it feels risky.

Payments, subscriptions, and operations already depend on it. Understand the current behavior and the risk before committing to a rewrite.

See a payment-system audit

Every technical decision
still lands on you.

The product needs someone who can weigh the trade-offs, work with the team, and stay responsible as the system grows.

See long-term ownership

The AI works in a demo.
Can people trust it?

Separate what can be checked from what needs judgment. Build a workflow where people can inspect the evidence and make the final call.

See an evidence-led AI workflow

Already have an agreed technical plan? Say so in your note. The conversation can start with implementation or ongoing ownership.

Know who is responsible for the work.

I'm Hasan Burak Taşyürek, the engineer behind HB Global. You work directly with me from the first assessment through any implementation or ongoing ownership you choose.

Crewfare first hired me for a small fix. The work grew into product architecture, billing infrastructure, and engineering leadership. I later returned to prepare and transfer the product for acquisition, and stayed involved after the transfer.

Explore the project history

“The kind of developer you can hand a hard problem to and trust that it'll come back solved — not worked around.”

Jordan Scheffler
Co-founder, Crewfare

The scope names the responsibility I take on and how it fits with your existing team.

Decisions, made concrete.

The problem, the choice, and what happened next.

Payments & modernization

Understand the money flow
before changing the system.

An audit of a plugin processing $3.4M a year through Stripe surfaced 28 production bugs and gave the founder a clearer modernization path.

Read the case
Long-term ownership

Build a platform you can
still operate years later.

A subscription media platform grew to 500,000 monthly users. I stayed for 4.5 years, taking responsibility for the architecture, operations, and technical roadmap.

Read the case
AI & human review

Give the reviewer evidence
they can inspect.

Deck-review findings fell from 110 to 31 while retaining 20 of 22 detectable reviewer-noted issues on the annotated sample deck.

Read the case
Explore all four cases

The scoped technical assessment

A recommendation
your team can act on.

Start with the decision you need to make. The scope defines what I examine and which questions the assessment will answer.

You receive a written recommendation you can use with your own team. Implementation or ongoing ownership can follow under a separate agreement.

Understand the current system
What the evidence shows, where the constraints sit, and what still needs checking.
Compare the available options
The trade-offs behind a focused fix, a broader change, or leaving a working part alone.
Choose the next move
A recommended direction with priorities and the questions to resolve before implementation.

How the work starts

  1. Describe the decision.

    Tell me what the system does and what is at stake. I reply within two working days to clarify fit and what information would help.

  2. Agree the paid scope.

    If an assessment is useful, I send its scope and expected output with the fee, timing, and payment terms. You decide whether to proceed.

  3. Use the recommendation.

    Decide what to do with the findings. Your team can take them forward, or you can discuss a separate scope for my continued involvement.

Discuss your decision

Sending a note does not commit you to paid work.
A plain-language description is enough to start.

Before you reach out.

A few things that are useful to know.

I already have a developer or a team.

Bring them into the conversation. The recommendation can help your team choose a direction and carry out the work. If you need me to take responsibility for part of it, that role is agreed explicitly.

Discuss where your team needs support
Will I get advice or implementation?

A scoped assessment gives you a written recommendation. If the direction is already clear, say so; implementation or ongoing ownership may be the useful starting point.

Review the assessment outputs
What does the first step cost?

The fee depends on what needs examining. Your first note lets me clarify that scope. Before any paid work, you receive the proposed output, fee, timing, and payment terms in writing.

Describe the scope you are considering
Do I need to share code or credentials?

A plain-language description is enough for the first note. If a closer look is useful, access and confidentiality arrangements are discussed before material is shared.

Start with a description
There is a deadline. Can you work around it?

Include the date and why it matters. I examine the constraints before proposing a realistic scope. The product case shows how one contained compromise worked in its specific circumstances.

Read the product trade-off case

Which decision needs a second view?

Describe what the system does and what you need to decide.
I will help clarify the useful next step.

Discuss your decision