Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m a passionate fullstack developer with a strong dedication to building responsive, user-friendly applications. My main focus is on fullstack development, where I enjoy using modern JavaScript and Python frameworks and libraries to create end-to-end solutions — from frontend to backend. Through my experience at OLX and personal projects like PinPictures, I’ve developed expertise in both frontend and backend development. My career path is oriented toward fullstack development, where I can apply my technical expertise to solve real-world challenges. I specialize in building scalable applications with a focus on performance optimization and clean architecture. My experience spans from developing real-time features to implementing complex data processing systems, always with an emphasis on code quality and maintainability.…I’m a passionate fullstack developer with a strong dedication to building responsive, user-friendly applications. My main focus is on fullstack development, where I enjoy using modern JavaScript and Python frameworks and libraries to create end-to-end solutions — from frontend to backend. Through my experience at OLX and personal projects like PinPictures, I’ve developed expertise in both frontend and backend development. My career path is oriented toward fullstack development, where I can apply my technical expertise to solve real-world challenges. I specialize in building scalable applications with a focus on performance optimization and clean architecture. My experience spans from developing real-time features to implementing complex data processing systems, always with an emphasis on code quality and maintainability.

Rostislav Chapeha

Full Stack Developer, Developer, Back-End Developer, +2





I’m a passionate fullstack developer with a strong dedication to building responsive, user-friendly applications. My main focus is on fullstack development, where I enjoy using modern JavaScript and Python frameworks and libraries to create end-to-end solutions — from frontend to backend. Through my experience at OLX and personal projects like PinPictures, I’ve developed expertise in both frontend and backend development. My career path is oriented toward fullstack development, where I can apply my technical expertise to solve real-world challenges. I specialize in building scalable applications with a focus on performance optimization and clean architecture. My experience spans from developing real-time features to implementing complex data processing systems, always with an emphasis on code quality and maintainability.…I’m a passionate fullstack developer with a strong dedication to building responsive, user-friendly applications. My main focus is on fullstack development, where I enjoy using modern JavaScript and Python frameworks and libraries to create end-to-end solutions — from frontend to backend. Through my experience at OLX and personal projects like PinPictures, I’ve developed expertise in both frontend and backend development. My career path is oriented toward fullstack development, where I can apply my technical expertise to solve real-world challenges. I specialize in building scalable applications with a focus on performance optimization and clean architecture. My experience spans from developing real-time features to implementing complex data processing systems, always with an emphasis on code quality and maintainability.

Available to hire

I’m a passionate fullstack developer with a strong dedication to building responsive, user-friendly applications. My main focus is on fullstack development, where I enjoy using modern JavaScript and Python frameworks and libraries to create end-to-end solutions — from frontend to backend. Through my experience at OLX and personal projects like PinPictures, I’ve developed expertise in both frontend and backend development. My career path is oriented toward fullstack development, where I can apply my technical expertise to solve real-world challenges. I specialize in building scalable applications with a focus on performance optimization and clean architecture. My experience spans from developing real-time features to implementing complex data processing systems, always with an emphasis on code quality and maintainability.

Skills

Experience Level

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Polish

Advanced

Work Experience

Lead Developer (Pet Project) at PinPictures

January 1, 2023 - Present

Led backend development of a full-featured social network with real-time capabilities. Architected end-to-end type-safe system and high-performance infrastructure. Implemented real-time features using WebSocket and modern UI with dark/light modes. Designed and deployed scalable architecture with edge caching, CDN and S3 storage. Built complete social network features including friends system and notifications. Set up automated deployment pipeline with Docker. Optimized application performance through code splitting and lazy loading.

Fullstack Developer at OLX

February 1, 2025 - August 8, 2025

Developed a system for automatic floor plan processing and information extraction using computer vision techniques. Deployed solutions on AWS infrastructure (EC2, S3) with high availability. Integrated AWS Lambda functions and API Gateway for server-less architecture. Trained and applied machine learning models to extract valuable information from floor plan images. Implemented robust error handling and logging system. Optimized model performance and reduced processing time.