DroSys s.r.o. – Custom web application development and integration

Web application development and integration tailored to you

E-commerce and business platforms, enterprise system integration, booking solutions and AI-powered automation. From analysis through development to long-term support.

Web application development

We build custom web applications – from internal company tools to large business platforms that run for years and grow with you. We choose the technology to fit the project, always with long-term maintainability in mind.

System integration

We connect your systems so they talk to each other automatically, with no manual data re-entry. We have hands-on experience integrating Microsoft Business Central ERP, the TecDoc product catalogue, the eBay marketplace, and payment and booking services.

Analysis and consulting

Before development starts, you need to know what to build. We analyse your requirements and translate business language into IT language – so developers build what you actually need and the result matches expectations.

AI and automation

We help companies put AI to practical use. We can teach an e-shop or internal system to understand natural language – a customer query is converted into search parameters over your catalogue, using local models without sending data out. We automate content production: bulk generation of product descriptions, translations for e-shops and marketplaces, converting PDF source material into structured web content – always with human review and integration into your existing workflow. AI tools are also a standard part of our own development – we deliver more work in the same time.

Long-term support and development

A system does not end at launch. We provide maintenance, further development and technical oversight for many years after deployment. Most of our clients work with us long-term.

Our products

Booking systems

Our own booking platform for accommodation and service providers – online reservations, availability sync with Booking and Airbnb (iCal) and clear administration in one. Deployed as a ready-made solution or customised to your needs. More at rezervace.drosys.cz.

Drones and security technology

Building and operating unmanned aerial vehicles for monitoring and reconnaissance, including thermal imaging equipment. Design, assembly and configuration of ArduPilot-based drones for specific missions – from wildlife protection to security applications. More at drones.drosys.cz.

Selected projects

A sample of our long-term collaborations. Alongside them we continuously deliver a range of smaller projects and integrations.

K MOTORSHOP

Trading platform for automotive parts

SYMFONY NETTE BUSINESS CENTRAL TECDOC EBAY ONLINE PAYMENTS

Long-term development of a custom online trading platform for a major European B2B supplier of car parts. The platform integrates several independent systems: Microsoft Business Central ERP, the TecDoc product catalogue and sales channels including eBay. A large project under continuous development.

Nestlé Baby

Websites for 25+ countries worldwide

DRUPAL TEAM LEAD OGILVY

In cooperation with the Ogilvy agency, we served as technical and team lead on the development and maintenance of Nestlé Baby web applications for more than 25 countries. An international project focused on a shared foundation with local specifics for each market.

Vitaflo (Nestlé Health Science)

Product and educational website for medical nutrition

DRUPAL OGILVY MULTILINGUAL CONTENT PRODUCT DATA AI

Development and ongoing maintenance of a Drupal website for clinical nutrition. The work includes managing extensive product data with nutrition tables and multilingual content, plus connecting the CMS to an LLM for automated content production.

Rezervace DroSys

Our own booking platform

SYMFONY ICAL

Our own product built on Symfony: a booking system for small accommodation providers with automatic availability sync via iCal (Booking.com, Airbnb), running in production.

TAK server management portal

SYMFONY MULTI-TENANT

Administration of the TAK tactical communication platform – users, certificates, groups and connected servers from one place.

Shoptet ⇄ iDoklad integration

SYMFONY API AI

Two-way integration of an e-shop with invoicing and catalogue – orders into accounting, products onto the e-shop, LLM-enriched descriptions, categories and product photos handled automatically.

and more…

Internal company systems, e-shop connections to accounting and warehouse systems, automation, smaller websites.

Your project does not have to be big to make sense. We will discuss what you need, free of obligation, and propose the simplest way to get there.

Get in touch

Over 20 years of development experience

Zdeněk Drobný
FOUNDER

20+ years

of development experience

25+ countries

websites and applications deployed internationally

DroSys s.r.o. grew out of the solo business of founder Zdeněk Drobný at the point where demand could no longer be covered by one person.

Zdeněk has been building web applications since 2004. At České Radiokomunikace he worked his way up from developer to head of the internal development team and IT analyst. Since 2012 he has been in business independently – projects include international cooperation with the Ogilvy agency on Nestlé Baby websites and long-term development of the trading platform for K MOTORSHOP. Within our own team we use agile methods and modern AI development tools – experience we also help our clients adopt.

What clients say about us

"
I know Zdeněk as an experienced analyst and an excellent developer of even complex web applications. He never settles for once-learned routines and keeps moving forward – he not only uses current development technologies, but also knows how to lead a team of programmers using modern, agile methods.

Jan Jelínek
IT manager, České Radiokomunikace a.s.

"
We worked with Mr Drobný on the development of a large information system. Zdeněk Drobný is a true expert in IT and telecommunications. Working with him was always first-class and I would not hesitate to do it again.

Jiří Knesl
Sprint Masters s.r.o.