Websites, mobile apps and AI automation that work for your business.

Designed and built for you by one person, from the first idea to launch and beyond. You always talk to the one who writes the code.

Start a projectSee the work
  • 2nd place, AI Cup 2026, Netherlands
  • 7 websites live
  • 3 mobile apps shipped

Projects live in Romania, the Netherlands and Turkey

What I can build for you

Three things, done properly. Each one comes with a clear budget range, so you know where you stand before we talk.

  1. Websites and online stores

    A website that brings you customers.

    Fast, multilingual sites you can edit yourself, with bookings, ordering or card payments when your business needs them.

    Details and budgetsSee a real example: Plastmach, Vorne, Windowland
    Typical budget€1,500 – €8,000

  2. Mobile apps

    Your business in your customers’ pocket.

    iPhone and Android apps from one codebase, published in the App Store and Google Play. They keep working offline and can even control machines over Bluetooth.

    Details and budgetsSee a real example: coup
    Typical budget€5,000 – €25,000

  3. AI and automation

    Let software do the repetitive work.

    Automations that take routine tasks off your plate, and custom AI models trained on your own data, built to run inside a real business, not just in a demo.

    Details and budgetsSee a real example: Genesa
    Typical budget€3,000 – €20,000

Real products, in real hands.

A few of the projects I designed and built. Every one is live or in real use.

All work
Mobile appOwn startup

coup

A new currency for students: a marketplace where nothing costs real money.

View the project
AIGenesa, Dumbrăvița

Genesa

A restaurant and guesthouse whose website runs the daily routine: menu photos, Facebook posts, order alerts and bookings.

View the project
genesa.ro home page
Mobile appPlastmach

Machinery HMI remote control

A phone app that runs an industrial PVC-processing machine over Bluetooth, sold together with the machine.

View the project
WebsitePlastmach

Plastmach, Vorne, Windowland

One client, three storefronts: machinery, hardware and window accessories, each with its own domain and audience.

View the project
plastmach.ro home page
AITeam Epoch (TU Delft), AIC4NL, TNO (competition)

AI Cup 2026

2nd of 89 teams in the Netherlands: bird species identification from radar data, for conservation around wind farms.

View the project
Sinan presenting Team Geto-Dacians' final model at the AI Cup 2026

How it works

Four steps, one person, no surprises.

  1. 1

    We talk

    You tell me what you need. I ask the right questions and suggest the simplest way to get there, with a budget range.

  2. 2

    You see it first

    You see how it will look and work before anything is built, and we adjust it together.

  3. 3

    I build it

    You get progress every week on a real link you can open on your phone, not a slide deck.

  4. 4

    Launch and care

    We launch, and I stay: updates, fixes and new features from the person who built it.

Sinan Çeviker presenting his team’s model at the AI Cup 2026

You talk to the one who builds it.

No account managers, no hand-offs. I’m Sinan Çeviker. I run SNS from Groningen and build every project personally, from the first sketch to the store release.

  • 2nd of 89 teams, AI Cup 2026, Netherlands, with team Geto-Dacians
  • Co-founder of coup, an alternative currency for students
  • Seven client websites live in Romania and Turkey
More about me

Details you’ll feel.

Good software is quick, smooth and answers you. These two are live on this page, try them.

More experiments in the Lab
Press Tab or tap the arrow to accept
Dark modeLight mode. Tap to switch this card.

Questions, answered

Message on WhatsApp