Oska

Fantasy Sports App & Fintech Developer

FH&H • Freiberufler

May 2019 - Present • 7 yrs 1 mo

I have extensive experience in developing fantasy sports applications with integrated fintech solutions, delivering fully functional, scalable apps for sports like cricket, football, and basketball. My expertise lies in building apps that handle real-time user activity, scoring logic, contests, and payments seamlessly. I specialize in full-stack app development, including backend architecture, database design, API integration, and performance optimization. I create secure user authentication systems, team creation modules, player selection logic, and dynamic points calculation engines based on live match data. I develop contests such as public leagues, private rooms, and head-to-head matches, complete with accurate leaderboards and rankings. My fintech experience allows me to integrate wallets, deposits, withdrawals, and secure payment gateways into the app, enabling smooth transactions for entry fees, rewards, and winnings. I ensure compliance with security standards and maintain transaction integrity while optimizing for fast, reliable performance. I also develop admin dashboards for full control over matches, players, contests, users, and payments. Third-party API integration for live scores and player statistics is part of my workflow, ensuring the app updates in real-time without downtime. Performance and scalability are central to my work. I design apps to handle high traffic during live matches using efficient database queries and optimized server architecture. Clean code, thorough testing, and secure fintech integration ensure apps are production-ready and reliable. I collaborate closely with clients to understand both technical and business requirements, turning their ideas into fantasy sports applications with integrated fintech systems that are secure, user-friendly, and designed for long-term growth.