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Rostislav Vetterman

@rostislavvetterman

Senior mobile developer specializing in AI-powered Android/iOS apps, delivering intelligent, high-performance user experiences.

Hungary

Message

What I'm looking for

I’m looking to build AI-powered mobile products end to end—native and cross-platform—integrating on-device ML with Python backends, strong architecture, and reliable CI/CD, so users get fast, intelligent, dependable experiences.

I’m a Senior Mobile Developer with 9+ years of experience building high-performance Android and iOS applications, and I now specialize in AI-powered mobile solutions. I integrate machine learning models into mobile platforms using Python backend services and JavaScript/TypeScript cross-platform frameworks, combining strong mobile architecture with practical AI/ML implementation for government, enterprise, and fintech teams.

In my most recent role, I developed AI-powered mobile applications with React Native and Flutter, integrating TensorFlow Lite for on-device image recognition (95% accuracy, 200ms inference time). I also built Python FastAPI serving for 50K+ daily inference requests with 99.9% uptime, delivered computer vision improvements that cut manual image processing time by 70%, and reduced mobile AI model download sizes by 60% through differential updates and CDN caching—while establishing MLOps pipelines to automate mobile model updates.

Experience

Work history, roles, and key accomplishments

Current

Senior Mobile AI Developer

Current

Wall Street Mobile Apps

Sep 2023 - Present (2 years 8 months)

Developed AI-powered mobile apps using React Native and Flutter, integrating TensorFlow Lite for on-device image recognition with 95% accuracy and 200ms inference time. Built Python FastAPI ML-serving backends handling 50K+ daily inference requests (99.9% uptime) and improved enterprise workflows by reducing manual image processing time by 70%.

React Native Flutter Tensorflow Lite fastAPI Computer Vision Core ML ML Kit OpenCV WebSockets REST APIs

Mobile Developer with AI Integration

iEngageIT

Jan 2019 - Aug 2022 (3 years 7 months)

Architected and built cross-platform React Native/TypeScript apps integrating with Python microservices for real-time AI predictions and chatbot NLP features. Improved customer support response time by 40% and created MLOps pipelines to automate TensorFlow Lite model conversion and CDN-based deployment.

React Native TypeScript Python fastAPI MLOps Tensorflow Lite GraphQL Chart.Js D3.Js

Mobile Developer

DAC.digital

Oct 2016 - Dec 2018 (2 years 2 months)

Developed native Android/iOS applications with integrated machine learning features using platform-specific ML frameworks. Built Python Flask/Django REST APIs for recommendation and predictive analytics, implemented WebSocket-based real-time data processing, and delivered AI proof-of-concepts for computer vision and NLP.

Python Flask WebSockets Recommendation Systems Predictive Analytics Computer Vision NLP