Denys
Software Engineer
Krakow, Poland • Open to relocation
I'm a fullstack developer with over four years of hands-on experience building modern web and mobile apps using TypeScript, React Native, and Next.js. I have collaborated with startups and product teams across Europe and North America, delivering cross-platform solutions from concept to launch. I focus on fast iteration, clean architecture, and building features people actually use and value. I thrive in cross-functional teams, working closely with founders, designers, and engineers to ship reliable, user-first products. I'm passionate about creating well-crafted software and continuously improving both product and process.
Skills
Services
Full-Stack Development
End-to-end development with React, Next.js, Node.js, and modern backend technologies.
Mobile App Development
Cross-platform mobile apps using React Native and Expo for iOS and Android.
AI Integration
GPT-4, LangChain, and OpenAI API integration for intelligent applications and automation.
Backend Development
RESTful APIs, database design, authentication, and cloud deployment with AWS and Firebase.
Work
Remote
Poland · Remote
Full-stack EngineerMiddle
Poland
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© 2025 Denys (dxnsav).