Danijel

Obradovic

- Worked on 20+ projects across different industries like social apps, crowdsourcing platforms, tech marketplaces, and healthcare. Some of the changes I worked on helped improve user engagement by around 20%. - Teamed up with backend devs to rethink parts of the architecture, which made data flow a lot more efficient (roughly 30% improvement). - Helped keep communication smooth between teams and made sure the client-server side of things stayed clean and performant (saw about a 25% boost there). - Took part in building scalable solutions and handling requirements across 10+ projects, making sure everything matched what clients actually needed.

- Built and shipped smart contracts for 7 Ethereum projects (things like data backup, presale, staking, voting). Focused a lot on security and transparency. Those projects ended up contributing around $500K/year in revenue. - Turned 200+ pages of Figma designs into a React-based micro frontend (React 17, Tailwind, Storybook, etc.). - Improved how data loads on the frontend by optimizing API calls — ended up cutting load time quite a bit (around 50%+ faster for large datasets). - Spent time tightening up smart contract security, adding better testing and reducing vulnerabilities by roughly half.

- Designed, developed, and maintained a mobile wallet with a company name for Android and iOS on Ethereum and Binance Smart Chain (BSC) networks utilizing React Native, thereby enhancing user engagement by 13%. - Enhanced operational efficiency on DiamondSwap's NFT(Non-Fungible Token) smart contract, resulting in a 15% reduction in transaction processing costs.