Freelance software developer · Vienna

Mobile apps, from concept to release.

10+ years building iOS and Android apps, games and interactive experiences. I take projects start to finish: from first concept through store release and maintenance.

Get in touch View LinkedIn

10+: years experience
20+: projects shipped
iOS · Android: native platforms
Founder: & technical director

About

Technical depth, with the leadership to ship

Software developer and entrepreneur with 10+ years building mobile apps, games and interactive experiences. What sets me apart is that I've also run a company: as co-founder and technical director I carried the technical, financial and client side of a studio. That means I work independently, prioritize ruthlessly and manage deadlines without needing to be managed.

I pair deep technical expertise with the leadership to deliver, setting technical direction, leading cross-functional development teams, and owning projects from concept to release. Today I work freelance, building and shipping mobile apps start to finish, including guiding clients through the App Store and Play Store review process.

I learned my craft before AI could write code for me. That foundation, plus years of guiding junior developers, makes me especially effective at using AI now: I know what to delegate, what to question, and how to turn fast suggestions into reliable software.

What I do

Services

Mobile app development

iOS & Android

Native apps from concept to store release, including hands-on support through the App Store and Play Store review process. Swift & SwiftUI, Kotlin & Jetpack Compose or Kotlin Multiplatform, with the performance and memory optimization I sharpened building games.

Native iOS (Swift, SwiftUI)
Native Android (Kotlin, Compose)
REST API design & data modelling
Performance & memory optimization
App Store & Play Store submission & review process
Gamification & engagement mechanics

Technical consulting

Leadership & Technical direction

Direction for product and engineering, including technical strategy, architecture, planning, deadlines and client communication. As co-founder and technical director I led cross-functional teams and carried the business side of a studio.

Technical direction & architecture
Cross-functional team leadership
Budgeting & resource planning
Client communication & ownership
Deadline & priority management

Also: Game development (Unity) Gamification AR / VR & interactive Prototyping & UX Wireframing User research

Portfolio

Selected work

Mobile · Swift & Kotlin

DogHive

Founder & lead developer

Community app for dog owners, built and shipped to the App Store and Play Store.

Web & Mobile · Lit.js & Capacitor

Spotteron

Frontend developer · Spotteron

Leading citizen-science platform. Frontend development on web and mobile applications.

iOS · Unity

Tagtool

Developer · OMAi

Live drawing and animation app for iPads, loved by thousands since more than a decade.

Mobile · Unity

Rising Tide

Lead developer · Causa Creations

Interactive awareness game built in Unity, leading the development.

iOS & Android · Unity

Glasfäden

Lead developer · Causa Creations

Interactive narrative experience produced at Causa Creations, with more than 40k users.

Want to see more, or discuss a project?

Get in touch

Let's build something together

Available for freelance mobile development and technical leadership. Tell me about your project and let's talk.

chris@kriwiskrawis.at Connect on LinkedIn