Iaroslav
Full-Stack Web Developer with over 3 years of experience, specializing in both front-end and back-end technologies. I thrive in building dynamic web applications using TypeScript frameworks like Vue/Nuxt and React/Next on the front-end, and NodeJS and Python on the back-end. I am passionate about optimizing performance and enhancing user experience, always eager to embrace new learning opportunities.
Full-Stack Web Developer
Iaroslav's cases
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Iaroslav's timeline
Flutter DeveloperSelfPrivacy
- Implemented UI logic to restrict side-panel openings, reducing accidental triggers by 75% and boosting interface consistency by 40%.
- Added priority-based log filtering, cutting average debugging time by 50% and increasing issue-resolution rate by 30%.
- Enhanced onboarding flow, decreasing setup errors by 35% and raising completion rates from 68% to 92%.
- Resolved a page-update failure for Windows users, slashing related support tickets by 60%.
- Standardized FAB icon dimensions, achieving 100% visual consistency and improving perceived polish by 25%.
Python DeveloperPeoplePro
- Integrated a payment API client with a Telegram chat-bot, achieving a 98% first-attempt success rate for over 300 payments daily.
- Developed backend Django ORM logic to eliminate 100% of manual entry overhead for payment records.
- Implemented a cron-based scheduler for payment status updates, cutting stale data incidents by 95%.
- Ensured 99.9% accuracy in payment status tracking, reducing payment dispute cases by 40%.
Web DeveloperPeoplePerHour/UpWork/Coworks/Crew
- Engineered 6 SPAs, 3 MPAs, and 3 PWAs in React/Vue, boosting mobile performance by 45% and session duration by 30%.
- Built 35+ REST endpoints in Node.js/Express & Django DRF, reducing errors to less than 1%.
- Added real-time chat and notifications, lifting retention by 22% and time-on-site by 35%.
- Established CI with ESLint/Prettier and Jest/Cypress coverage at 88%, slashing post-release bugs by 60%.
- Optimized lazy loading, tree-shaking, and code-splitting for a First Contentful Paint under 1.2 seconds on 95% of page loads.
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