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ShalkIT
Available for new projects

Building mobile apps that matter.

ShalkIT is a mobile software engineering studio. From the first research call to the final deployment — I craft polished, production-ready iOS and Android apps that users love.

View My Work Start a Project
10+ years Experience
Android · iOS Platforms covered
KMP Native + Multiplatform
100% Focus on quality
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What I do

End-to-end mobile
engineering.

Every great app starts with a clear vision and ends with a codebase that's maintainable for years. I cover the full lifecycle.

01
Research
User interviews, competitive analysis, and technical feasibility scoping to ensure we build the right thing before a single line of code is written.
02
Design
UI/UX design in Figma — wireframes, interactive prototypes, and pixel-perfect design systems built for developers to implement with confidence.
03
Development
Compose Multiplatform (CMP) for Android & iOS, native Android (Kotlin), or Kotlin Multiplatform (KMP) for shared business logic. Clean architecture, modern patterns, and readable code.
04
Testing
Unit, integration, and UI test suites. Manual exploratory testing and real-device verification to ship with confidence and zero regressions.
05
Maintenance
Ongoing support, OS update compatibility, performance monitoring, and feature iterations. Long-term partnership to keep your app healthy and growing.
Selected work

Apps I've built.

A selection of projects across transit, productivity, and lifestyle — each one crafted with precision from concept to launch.

Transit · CMP
ZET Tracker
Compose Multiplatform GTFS Realtime Maps
ZET Tracker
Real-time Zagreb tram & bus tracker for Android and iOS
Android · Native
HŽPP Planer
Android GTFS Static
HŽPP Planer
Official Android application for HŽ Passenger Transport (Croatian Railways)
About me

One engineer,
full focus.

When you work with ShalkIT, you work directly with me — the engineer who writes the code, ships the app, and answers your messages.

01
Discovery call
We explore your idea, define goals, and map the scope.
02
Research & proposal
Technical specification, timeline, and pricing — clear and upfront.
03
Design & build
Weekly syncs and a shared staging build so you always know the status.
04
Launch & beyond
App store submission, monitoring, and post-launch iterations.
J
Josip Šalković
Mobile Software Engineer · Founder, ShalkIT
Kotlin Kotlin Multiplatform (KMP) Jetpack Compose Compose Multiplatform (CMP) Clean Architecture
Available now
Ready for new projects
Android · iOS
All platforms covered
Let's talk

Have a project in mind?
Let's build it.

Whether you have a detailed spec or just a rough idea — send me a message and we'll figure it out together.

I typically respond within 24 hours. For urgent inquiries, reach out directly via email or LinkedIn.

Email
josip@shalkit.com
LinkedIn
linkedin.com/in/josip-salkovic
GitHub
github.com/shalkIT

Message sent!

Thanks for reaching out. I'll get back to you within 24 hours.