AI, web, mobile and hardware. One team builds it all.

Zdev is an engineering team in Serbia. Whatever your business runs on, from AI pipelines to payment terminals, we build it and keep it running.

Recent work forShiptimizeCyprus AirwaysThinkCRM
Selected work

A few picks from our work.

Twelve projects we chose because each one was hard in its own way. Airlines, logistics, fitness, publishing, retail. Filter by the kind of work, or open any project.

01Aviation
Cyprus Airways

An onboard till that keeps selling with no network

Cabin crew sell from a trolley for a whole flight with no connection. Every sale reaches the ground exactly once, and the till is built so no passenger is charged twice.

HardwareMobile
02Logistics
Shiptimize

Shop integrations moved off an old core system, with no downtime

Merchants print labels all day, and a bug here ships a parcel twice. We moved every integration to a new service, one at a time, with the old system ready to take over at any moment.

MaintenanceOps
03Aviation
Cyprus Airways

An airline’s marketing team publishes without a developer

Editors build their own pages in three languages. The public site holds no database and no credentials, so the booking path stays out of reach.

WebOps
04Logistics
Shiptimize

One pickup map for every checkout

The last screen before a shopper pays had been copied into every plugin, and each copy had drifted. Now one phone-first widget serves every platform and brand, and a fix lands everywhere at once.

WebMaintenance
05Digital publishing
AI content-licensing start-up

Publishers set the terms for how AI uses their articles

AI splits each article into pieces that carry their own licence. Every AI request is logged, so a publisher can prove who read what.

AIWebOps
06Health & fitness
Gym group

Members book instantly, even when the finance system stalls

Every booking must agree with the gym’s finance system, which is slow and cannot be bypassed. Bookings save at once, confirm in the background, and undo themselves if the finance system says no.

OpsMobile
07Logistics
Shiptimize

One click turns any shop’s order page into a shipment

Merchants without a plugin typed every address by hand. Our browser extension reads the order on screen with AI vision, then books the shipment and prints the label.

AIWeb
08Hospitality
Resort club in Cyprus

After a breach: the open doors found and closed in order of risk

We found how the attacker got in and what else was open, then closed it, worst first, starting within hours. Members kept using the platform throughout.

OpsMaintenance
09SaaS
ThinkCRM

One platform, two industries: salons and medical practices

Each edition has its own features, and a fix to the core reaches both. Both carry live card payments, e-invoicing and national health-system reporting.

WebMaintenance
10Retail
StockProphet, our own product

Stock forecasts that tell you when not to trust them

StockProphet tests every forecast before it suggests a reorder. When a forecast is not reliable enough to act on, it says so instead of guessing.

AIWeb
11Health & fitness
ThinkCRM

Gym software rebuilt from the ground up, then made fast

Memberships, bookings, payments, tax reporting, and a phone that opens the door. We rebuilt it on one platform, carried each gym’s history across, then found and fixed the slow parts by measuring, not guessing.

MobileWebOps
12Fashion retail
Two Scandinavian fashion labels

Headless storefronts the marketing team can still edit

Moving to a headless storefront usually takes page editing away from marketing. We kept drag-and-drop editing, so campaign pages go live without a developer or a release.

Web

This is a selection, not the full list. Ask what we have built in your field

Who you talk to

You talk to the engineer who does the work.

Djordje ZrnićEngineering lead at Zdev
01Team
No account managers. No hand-offs.The person who answers your questions writes and reviews your code.
02How
Inside your team.Your tools, your process, your repository. The code is yours from the first commit.
03Hours
Your working day, not ours.We work remotely from Serbia on CET, and match our hours to yours, from Europe to the US.
04First step
Two weeks. One fixed price.On an undocumented system, a short assessment comes first, so the quote that follows is one we can keep.

Ready to build something great?

Tell us what’s breaking, or what you need built. You talk to the engineer who does the work.