Engineering for companies where a bug is a compliance incident

Zeenko designs, builds and runs software for fintech, compliance, enterprise commerce and PropTech.

17 years in regulated software. Every client has come back.

Clients

The complexity is the point. Exchange integrations, transparency registers and audit trails are where regulated products succeed or fail, so that is where we start.

Seventeen years of range is what makes that possible. We carry what works in one field into the next.

Fintech platforms
Compliance tools
Learning platforms
E-commerce
PropTech
Design and art direction
Marketing campaigns
Custom plugins
HubSpot
Shopify
WordPress
Kotlin
Java

Four ways to start

Each one opens with a fixed-scope piece of work, so you see how we think before you commit to a build.

Regulated Platforms

Trading, compliance and financial products built against the rule set from the first sprint.

Feasibility proof 2 weeks, fixed scope

EU Market Entry

Bring a product into the EU with its regulatory and data obligations mapped and met.

Compliance gap assessment 5 days, fixed scope

Enterprise Commerce and Integration

Commerce platforms connected to the ERP, payment and fulfilment systems behind them.

Integration audit 2 weeks, fixed scope

Embedded Senior Engineering

Senior engineers who join your team for the hardest part of the roadmap.

Architecture assessment 2 weeks, fixed scope

Cross-Proof

Our method, in two halves: what we carry over from other sectors, and how we prove it works in yours.

Cross

What we bring

Rules first

We read the regulation, the exchange spec or the audit standard before we draw anything.

One user, one moment

We find the single moment where a person depends on the system and design outward from it.

Patterns from other sectors

We bring in what already works elsewhere and adapt it to your constraints.

Proof

How we show it works

The hardest part first

The riskiest integration or rule gets built and proven before the rest is funded.

Verifiable increments

Each increment traces to a requirement and can be checked by your own team.

Handover with evidence

You receive the system together with the record that shows it does what it must.

Selected work

Platforms that had to be right on day one.

Fintech, for Unboxed GmbH

boxtrades.de

Germany's first box spread trading platform, integrated with EUREX.

Read the case

Compliance

wb-check.de

Automated compliance checks against the German transparency register.

Read the case

PropTech, our own product

we-home.pe

Built and operated by Zeenko. A property marketplace for Peru where listing is free.

Read the case

In our clients' words

“They understood our compliance requirements from day one. No extra guidance needed.”

A. Altmann

CTO, WB-Check

Read the wb-check.de case

“A complex, first-in-Germany tool, delivered on time and flawlessly. Simply exceptional.”

J. Punstein

CEO

“They challenged our assumptions and built something better than we asked for.”

Founder

SeedSafari

Two siblings, one standard

Zeenko began with Gustavo, who founded it at twelve. His sister Claudia joined him, and together we have built across industries, scales, systems and languages, before AI and with it.

We stay

We are part of the product until it ships, and for as long as it runs afterwards.

Clients return

Every client we have worked with has come back for more.

Detail

Attention to detail is the standard we hold each other to, on every line and every screen.

Always on

We work from Germany, Peru and the United States, so your product has someone on it around the clock.

Four phases, a fixed price for each

Cross-Proof runs inside every one of them. The widths below follow how long each phase takes.

Assess

2 to 4 weeks

We map the rules, the systems and the risk, and tell you what is feasible.

Architect

4 to 8 weeks

We design the platform and prove that the hardest part works.

Build

3 to 12 months

We deliver in verifiable increments that your team can check.

Evolve

Ongoing

We run, monitor and extend what we built.

What clients ask first.

Our deadline comes from a regulator. Can you plan around it?

We start from the regulation and the date, then plan backward. During scoping we tell you whether the date is realistic and what has to hold for you to meet it. That is how we connected boxtrades.de to EUREX and automated transparency register checks for wb-check.de, with zero downtime in production.

Will we need to hire or manage anyone?

We work in your repositories and through your review process, so your engineers keep the architecture decisions and review our pull requests. You get the capacity without adding headcount. Every client we have worked with has come back for another project.

What will it cost, and can it run over?

Each phase has a fixed price agreed before it starts. A change in scope is priced in writing, and you decide whether it goes ahead. Nothing is billed without your approval.

Engineering for companies where a bug is a compliance incident

Four ways to start

Regulated Platforms

EU Market Entry

Enterprise Commerce and Integration

Embedded Senior Engineering

Cross-Proof

Cross

Rules first

One user, one moment

Patterns from other sectors

Proof

The hardest part first

Verifiable increments

Handover with evidence

Selected work

boxtrades.de

wb-check.de

we-home.pe

In our clients' words

Two siblings, one standard

We stay

Clients return

Detail

Always on

Four phases, a fixed price for each

Assess

Architect

Build

Evolve

What clients ask first.

Our deadline comes from a regulator. Can you plan around it?

Will we need to hire or manage anyone?

What will it cost, and can it run over?

Tell us the rule you cannot afford to break

What happens next