
Dmytro
React Nextjs Developer
Competenze

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Portfolio
Esperienza lavorativa
Fiverr
Full time • 2 yrs 3 mos
Full-stack Engineer
Mar 2025 - Present • 1 yr 4 mos
Worked at Svitla Systems Developed scalable web apps, designed REST APIs, and delivered products from MVP to release in Agile teams. Career Portal (React, Redux Toolkit Query, NestJS, Docker, MySQL, TypeORM): Refactoring: Spearheaded architectural refactoring, eliminating duplicated code to boost codebase maintainability and onboarding speed. Features: Led UI/UX redesign and built content management tools (jobs, skills), increasing admin panel efficiency by 25%. Auth & Search: Integrated LinkedIn SSO and built persistent multi-criteria user filtering for secure, optimized search. MVP: Contributed to a successful MVP launch, accelerating subsequent feature delivery. Agent Portal (Next.js, Tailwind CSS, shadcn/ui, NextAuth.js, Zod, TanStack Query): UI Redesign: Developed 10+ new pages, enhancing platform usability and visual consistency. Onboarding: Engineered an end-to-end user registration flow, reducing user drop-off rate by 15%. Code Quality: Conducted 30+ code reviews, reducing post-release UI bugs by 20%. Demos: Delivered successful live product presentations and tech demos to clients and stakeholders. Company Website (React, TypeScript, WordPress, CSS): Maintained corporate site ensuring 99.9% uptime and smooth cross-browser performance. Developed interactive UI features, including dynamic SVG maps and secure file attachments for job applications.
Angular developer
Nov 2024 - Mar 2025 • 4 mos
Worked at SoftServe Reusable Architecture: Engineered and maintained a library of highly scalable, reusable UI components following clean code principles, cutting frontend development time for new features by 20%. Performance Optimization: Significantly improved enterprise application performance by optimizing Angular's Change Detection strategies (OnPush) and rendering profiles, resulting in a 25% reduction in initial page load times. Full-Stack Collaboration: Collaborated closely with Node.js/Express backend engineers on REST API design, ensuring seamless data contracts, efficient payload sizes, and optimal integration with asynchronous frontend workflows (RxJS). Code Quality & Stability: Conducted rigorous code reviews and authored comprehensive unit test suites, reducing post-release production bugs by 15% within a large-scale enterprise ecosystem. Agile Delivery: Actively participated in all Agile/Scrum ceremonies (sprints, stand-ups, retrospectives), consistently delivering production-ready features within estimated deadlines
Angular developer
Apr 2024 - Nov 2024 • 7 mos
Worked at Adaptive Web Intelligence Solutions Interactive Tooling: Engineered a custom, performance-optimized web-based image editor from scratch, enabling seamless client-side image manipulation and processing. AI Integration: Integrated external AI models and APIs for real-time image generation, managing heavy data payloads and asynchronous workflows with resilient loading and error states. Performance & State: Optimized browser rendering performance for large image datasets and implemented robust state management with advanced retry logic. Cross-Functional Collaboration: Partnered closely with AI research engineers and backend developers to architect clean API responses, ensuring minimum latency and seamless UI integration