Senior full-stack & mobile developer

Dávid Zita

Web and mobile apps that hold up in daily use.

For over ten years I have designed and built products from the first conversation to production. For GPS Dozor, I independently built the GPS Dozor 4.0, Findee Pets and Findee Guardian mobile apps.

Dávid Zita working at his laptop, wearing headphones and glasses

Drnholec / South Moravia · remote collaboration

Building software since 2016

01 /Selected projects

All projects

Work I stand behind.

Client apps and products of my own. For each one I set out what I was responsible for, the decisions I made and how they turned out.

FindeeKids — map screen with a child’s location and a button to request a location update
FindeeKids — a conversation with a child through voice messages
FindeeKids — managing family contacts who are allowed to call the child

01GPS Dozor

FindeeKids

A mobile app for family location and communication with children’s watches

Role
Frontend and mobile development
Platforms
iOS · Android
Period
Since 2022
GPS Dozor 4.0 — demo fleet overview on iOS in light mode
GPS Dozor 4.0 — demo vehicle details on Android with speed, mileage and last location
GPS Dozor 4.0 — Android trip log with a daily summary of demo trips

02GPS Dozor

GPS Dozor 4.0

Native fleet management and electronic trip log apps

Role
Complete native iOS and Android development
Platforms
iOS · Android
Findee Pets — a pet’s current location on a satellite map
Findee Pets — live tracking of a pet and its route

03GPS Dozor

Findee Pets

A mobile app for GPS location of dogs and cats

Role
Complete iOS and Android app development
Platforms
iOS · Android
Findee Guardian — a loved one’s location and requesting a new location update
Findee Guardian — managing contacts on the watch

04GPS Dozor

Findee Guardian

A mobile app for staying connected with loved ones and caring for seniors

Role
Complete iOS and Android app development
Platforms
iOS · Android
Asylia website home screen with the headline Multisig self-custody, calm by design

05My own product

Asylia

A Bitcoin multisig vault with hardware signing

Role
Product, UX and website
Platforms
Web · Trezor · Ledger
Hajcer — choosing delivery or collection and one of two branches
Hajcer — burger menu with prices and categories
Hajcer — side dishes with adjustable quantities

06Hajcer restaur s.r.o.

Hajcer

An ordering app for a restaurant with two branches, connected to its point-of-sale system

Role
Full-stack development: app, backend and administration
Platforms
iOS · Android · Web administration
Period
Since 2021

02 /Approach

I want to know why.
Then I work out how.

Before I propose a solution, I want to understand the whole product: why it exists, who uses it and what it has to handle. I work it out together with the client and the team, and a good argument is reason enough to change the design or the technical approach.

More about me
  1. 01

    Reality first, technology second.

    Before I choose a tool, I want to see the operation, the data and the people who will use the product.

  2. 02

    Simple and understandable.

    A good solution must still make sense to someone other than me a year later. That usually means fewer layers, not more.

  3. 03

    Operations are part of the design.

    I plan deployment, monitoring, backups and behaviour during outages while designing, not after the first incident.

  4. 04

    Plan for the next version, too.

    I design with maintenance, handover and further development in mind. A product changes along with the people who use it.

03 /Outside work

And then I close
the laptop.

Development is a big part of my life. Not all of it.

  • 01

    Brazilian jiu-jitsu

    I practise it and have won a European championship.

  • 02

    Chess

    I play regularly. You can find my games on Lichess.

    Lichess profile
  • 03

    A house in the browser

    In the evenings I build an interactive 3D model of a house. You can orbit it, fly over it and walk through the interior. It is how I learn 3D on the web.

    Walk through the model
  • 04

    Dad

    Part of my time belongs to my family. That part stays off this website.

04 /Services

How I can help.

A company website, a web application or a mobile product. Each has a different scope; here is what we can build together.

  • 01

    Website development

    A website should quickly explain what you offer, show your work and make it easy to get in touch. I design and build it around the people visiting it and what they need to find out.

  • 02

    Web application development

    When spreadsheets, emails and separate systems are no longer enough, an application designed around people’s actual work can help. I connect the interface, data and related systems into one understandable product.

  • 03

    Mobile app development

    A mobile app needs to handle everyday use: touch interaction, changes in permissions and connection loss. I develop apps for iOS and Android and connect them to the services they need.

05 /Testimonials

In my clients’ words.

He developed a mobile app for our restaurant with two branches, handling online food orders and point-of-sale integration. The solution works reliably in everyday operation, and even more demanding requirements were no obstacle.

Translated from Czech
Marián BulákOperations Director, Hajcer restaur s.r.o.Case study: Hajcer

We have worked with Dávid for years on a variety of projects: websites, online stores and mobile apps. He consistently delivers quality work quickly and reliably.

Translated from Czech
Matúš ChrenkoOwner, Standberg s.r.o.

06 /Contact

Have a project in mind?
Let’s talk.

A few sentences about what you need and where things stand are enough. No technical brief required.