Bratislava · independent senior engineer

Turn manual, scattered work into systems that run.

I'm Eyüp Türkay, a senior engineer with 30 years of enterprise experience — from Istanbul's transit payment network (10M+ daily transactions) to Deutsche Telekom Slovakia. I build the software, AI and automation that make B2B operations faster to run. You work directly with me, not an agency layer.

30+ years enterprise engineering Founder-led, no layers Bratislava · Central Europe
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30+

Years of enterprise engineering

10M+

Daily fare transactions I helped commission

Direct

You work with me, not a layer

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Formerly

Deutsche Telekom Slovakia · Practicus AI · Turkish Maarif Foundation · Istanbul Metropolitan Municipality · Belbim (Istanbulkart)

Eyüp Türkay working — senior software & AI engineer, Bratislava
The person you work with

Eyüp Türkay — 30 years, one accountable engineer.

I've built enterprise systems since 1995 — from Istanbul's transit payment network (10M+ daily transactions) to engineering teams at Deutsche Telekom Slovakia. When you hire me, that experience is what shows up: no agency layer, no junior hand-offs, no account managers in between.

More about me
What I do

Three things I build, end to end.

Software, automation and data, built directly by me — with a trusted partner network when a project needs scale. Pick the pressure point, I start there.

AI & Automation

I take repetitive work — invoicing, reporting, lead handling — off your team with n8n workflows and AI agents that run unattended.

Data & BI

I turn scattered numbers into decisions you can act on, with Microsoft Fabric and Power BI reporting your managers actually trust.

Custom Software

I remove the manual steps slowing your team down — web apps, internal tools and integrations built for how your business really runs.

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TURKAY product

Cernari: ask your operation what needs attention.

Cernari is our operational intelligence engine. It sits on the data foundation you already run, Microsoft Fabric, Snowflake, Databricks or BigQuery, and answers from Teams, WhatsApp or a private web assistant. Five primitives, six vertical products, one operational brain.

AskSeeActRememberGovern
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Speaks via Microsoft Teams, WhatsApp, Private web assistant.

Logistics Intelligence

Live

Lognari

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Telecom & Network Operations Intelligence

In development

Netnari

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Global Education Intelligence

In development

Skolnari

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Staffing & Housing Intelligence

In development

Shiftnari

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Field Force & Pharma Commercial Intelligence

In development

Fieldnari

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NGO & Association Intelligence

In development

Civicnari

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Industries we serve

Built for the sectors I know.

I bring the same capabilities to the operational reality of each industry I've worked inside.

Logistics Education Fintech Healthcare Telecom Staffing & Housing Pharma NGO & Associations
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Selected work

Recent independent & product work.

A few recent builds. The full record — including 30 years of named enterprise systems — is on the work page.

Lognari — Logistics Fleet Intelligence
Own Product · Logistics Own product

Lognari — Logistics Fleet Intelligence

Logistics WhatsApp Telegram Fleet intelligence

Logistics fleet intelligence for Turkey–Europe corridors: WhatsApp/Telegram-first reporting on top of the client's existing data. My own product, live.

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avrupaoturumu.tr — Automated Editorial Platform (client build)
Client Build · Editorial AI Client work

avrupaoturumu.tr — Automated Editorial Platform (client build)

Astro Directus n8n Editorial automation

A Turkish-language EU residency / golden-visa publication I built for a client — a fully automated editorial pipeline (Astro + Directus + n8n) with a human fact-approval gate before anything is published.

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European Staffing & Housing Group — Microsoft Fabric Audit (under NDA)
Data Platform · Fabric Independent work · NDA

European Staffing & Housing Group — Microsoft Fabric Audit (under NDA)

Microsoft Fabric Power BI Data Engineering

Microsoft Fabric migration audit and recruitment-KPI data platform: identified critical pipeline failures, rebuilt refresh reliability, and delivered a Power BI reporting layer. Name withheld under NDA.

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See all work
How we work

How We Work

Founder-led from first call to delivery — you work directly with me, with a trusted partner network when a project needs scale. I scope to your needs, with no fixed packages and no list prices.

30+ years engineering Founder-led delivery Bratislava, Central Europe

Step 01

Discovery call

A short call to understand your business and the outcome you want.

Step 02

Needs analysis

I map workflows and constraints, then find the fastest measurable return.

Step 03

Defined scope

A clear written scope: what I build, the timeline, and what success looks like.

Step 04

Founder-led delivery

I deliver directly, with weekly progress and direct accountability.

Objections

FAQ

Common questions about scope, pricing, delivery speed, and working directly with me.

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Who is behind TURKAY?
TURKAY is the independent practice of Eyüp Türkay, a solo senior engineer with 30 years of enterprise experience — including Deutsche Telekom Slovakia, the Istanbul Metropolitan Municipality, and 10 years running pharma IT. When you work with TURKAY, you work directly with the person who builds your system: no account managers, no hand-offs, no junior delivery. When a project needs more scale, I bring in a trusted partner network — but the senior accountability stays with me, from the first call through delivery.
How does pricing work?
I do not publish fixed packages or list prices, because the right number depends entirely on your scope. I start with a discovery call, run a short needs analysis, and define a clear written scope. Only then do I prepare a tailored quote with milestone-based payments and full transparency. You always know what you are paying for before any work begins.
What is n8n automation and how can it help my business?
n8n is an open-source workflow automation platform that removes repetitive manual tasks such as invoice processing, order tracking, campaign management, and customer notifications. I design, build, and integrate n8n workflows with your existing tools and AI services, so your team spends less time on copy-paste work and more time on the decisions that actually move the business forward.
Do you work with businesses outside Slovakia?
Yes. I'm based in Bratislava and work remotely with B2B teams across Central Europe — Slovakia, the Czech Republic, Austria (Vienna is an hour away for in-person meetings), and Poland — as well as Turkish-owned businesses operating in Europe and companies in Turkey expanding into the EU. I work in English and Turkish. Most collaboration happens over video calls, shared project tools, and regular written progress updates, so location is rarely a constraint for delivering software, automation, or AI work.
What AI services do you actually deliver?
I focus on AI that maps to a concrete business workflow rather than experiments. That includes custom AI agents, large language model (LLM) integration, retrieval-augmented generation over your own data, n8n-based AI automation, and decision dashboards. I start with the use case that creates the fastest visible return, pilot it quickly, and only scale once it is proven in your operation.
How does a typical engagement work?
Engagements follow five clear stages: a short discovery call to understand your needs, a needs analysis and written scope, development with weekly progress updates, testing and launch, and post-launch support. You stay informed throughout with regular reporting and direct access to me, the engineer doing the work, so there are no black boxes and no surprises at delivery.
Ready to scale

Ready to replace scattered tools with a system that sells and operates better?

Tell me the outcome you want. I'll define the highest-ROI change first, whether that is a stronger website, workflow automation, or a custom internal platform.

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