23.09.2025 aktualisiert

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Senior Mobile App Developer with Unity, iOS and Android Expertise

Wien, Österreich
Wien +25 km
Master of Science in Media and Human-Centered Computing
Wien, Österreich
Wien +25 km
Master of Science in Media and Human-Centered Computing

Profilanlagen

CV Christian Knapp 2025.pdf

Über mich

Software Developer with 10+ years of experience building mobile apps, games and interactive experiences. Combining strong technical expertise with leadership and management skills. Currently seeking freelance opportunities in native mobile development (Swift, Kotlin).

Skills

Apple IOSAugmented RealityC#Mobile Application DevelopmentProgrammoptimierungDatenbankenMobile Device ManagementUi-DesignIphone AppsPythonProjektmanagementPerformance-TuningSQLTechnische LeitungTechnische ÜberwachungSwiftuiBackendKotlinJetpack ComposeFull Stack EntwicklungFigmaRestful ApisPublizieren
Mobile Development
Experienced in native mobile development for iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose) with extensive experience building and publishing apps to app stores

Unity Development
Expert in Unity and C# with strong focus on AR/VR experiences, performance optimization, and complex rendering solutions for mobile platforms

Technical Leadership
Technical direction and project management skills with experience leading development teams of up to 6 people and scaling companies from founding to €500K+ annual revenue

Performance Optimization
Specialized knowledge in memory optimization, GPU particle systems, and rendering for resource-constrained mobile devices

Augmented Reality
Implementation of AR experiences using ARKit, ARCore, and ARFoundation with focus on location synchronization and interactive elements

Full-Stack Development
Proficiency in backend technologies including SQL, Python, and Java, with understanding of REST APIs and database integration

UI/UX Design
Experience with UI design tools like Figma and Sketch, combined with practical implementation of user interfaces for mobile applications

Erfahrung

Berufserfahrung5 - 10 Jahre
Freelancer seit2015

Sprachen

DeutschMutterspracheEnglischverhandlungssicherItalienischGrundkenntnisse

Projekthistorie

Independent App Developer in Swift and Kotlin

Independent & Freelance

Internet und Informationstechnologie

< 10 Mitarbeiter

Founder and lead developer of DogHive, an app helping dog owners discover and share dog-friendly places. Focus on independent app projects and freelance development in native technologies for iOS and Android.

Parental Leave

Parenting Year
Reduced workload to focus on parenting responsibilities.

Managing & Technical Director, Lead Developer, Co-founder

Causa Creations

Internet und Informationstechnologie

< 10 Mitarbeiter

Directed all technical development: defined tech stacks, strategies, schedules, and budgets. Managed and grew the team from 4 founders to 9 employees plus freelancers. Oversaw developer hiring and team management. Served as lead programmer on multiple Unity and AR/VR projects. Contributed to company strategy, financial planning, and scaling to €500K+ annual revenue.

Lead Unity Developer & Project Lead on Educational Multiplayer Game

Causa Creations

Internet und Informationstechnologie

< 10 Mitarbeiter

Rising Tide: Multiplayer iPad game designed for classroom settings, teaching about climate change to ages 13-18. Led a team of 5, responsible for development and project management. Technologies: Unity, C#, ARFoundation, DOTS.

Lead Unity Developer & Technical Artist on VR project

Causa Creations

Internet und Informationstechnologie

< 10 Mitarbeiter

Holy Fire: VR experience exploring the history of nuclear power. Implemented stylized visuals with strong focus on performance due to limited hardware capabilities. Released on AppLab for Oculus Quest. Technologies: Unity, C#.

Lecturer

SAE Vienna & FH Campus Wien
Taught programming, physics, artificial intelligence for game developers, and news games.

Lead Unity Developer on location based AR app

Causa Creations

Internet und Informationstechnologie

< 10 Mitarbeiter

Die Andere Stadt: Location-based app with 3 AR-enhanced city walks in Vienna. Built custom narrative system for rapid content updates. Led a 4-person team. Technologies: Unity, C#, ARFoundation, Mapbox. Released on iOS and Android.

Lead Unity Developer on drawing app

OMAI

Internet und Informationstechnologie

< 10 Mitarbeiter

Tagtool: Live drawing & animation app for iPad. Extended and optimized existing codebase. Focus on performance improvements and multi-screen rendering features. Technologies: Unity, C#. Released on AppStore for iPad.

Game & App Developer

Freelance, multiple companies
Completed 10+ Unity projects, leading teams of up to 6 people. Published 6 projects to app stores. Delivered AR and VR experiences with strong focus on performance and memory optimization. Built complex solutions including a GPU particle engine, custom multi-screen rendering for iPad, and multiplayer AR location synchronization.

Unity Development

Iron Mountain Interactive GmbH

Internet und Informationstechnologie

10-50 Mitarbeiter

Development on Steel Circus, a competitive multiplayer sports game. Worked on the input system and Steamworks, Discord and Twitch integrations.

Lead Unity Developer & Technical Artist on VR project

Gamegestalt

Internet und Informationstechnologie

< 10 Mitarbeiter

The Tear: Narrative VR experience with puzzle elements. Built custom GPU particle system for 1M+ particles in VR. Led a team of 3-6 with strong focus on performance optimization. Technologies: Unity, C#. Released on Steam.

Lead Unity Developer on multiplayer AR experience

Volkstheater Wien & Causa Creations

Internet und Informationstechnologie

< 10 Mitarbeiter

Vienna All Tomorrows: Immersive AR theatre experience on iPads. Sole developer of frontend, multiplayer backend, and live visualization client for large screen projection. Completed in 10 weeks. Technologies: Unity, C#, ARKit, ARCore. Played at Volx Margareten Wien.

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