Software Development for Logistics of Truck Freight Transportation. Achievements:• Created a Minimum Viable Product (MVP) for the company's flagship product and refactored outdated code, which attracted customer interest and new investments.• Developed an interactive map using Leaflet and OpenStreetMap API with optimal route planning and unlimited location data validation, speeding up delivery by 25%.• Implemented a truck equipment rental management section, performing CRUD operations on over 5000 records and optimized invoicing, reducing application processing time by 30%.• Built a fault tracking section for issues identified after inspections, reducing truck downtime and inspection time from an average of 90 to 30 minutes.• Collaborated with three backend developers, two designers, and a PM, ensuring accurate alignment of project milestones and deliverables.• Conducted thorough code reviews for colleagues, reducing significant errors by 60%, ensuring user trust and system reliability.

1. NFT Blogㅤ• Stack: ReactJS, Redux, Redux Saga, React Bootstrap, React Router, Axios, Bootstrap, CSS, HTML.ㅤ• Implemented: Routing, pagination, saga effects, responsive design, sorting and searching posts, NFT image generator.ㅤ• Code:https://gitlab.com/portfolio6195237/react-blog#nft-блогㅤ• Demo:https://react-nft-blog-1488a0f59dbc.herokuapp.com2. Mortgage Calculator (Commercial Project)ㅤ• Stack: ReactJS, TypeScript, CSS, HTML.ㅤ• Implemented: Custom hooks and scroll bar, content splitting utility, quick search, input hints, logical field connections, keyboard navigation, createPortal, cross-browser and responsive layout.ㅤ• Code:https://github.com/yuriyvyatkin/mortgage-calc#readmeㅤ• Demo:https://yuriyvyatkin.github.io/mortgage-calc3. Task Trackerㅤ• Stack: ReactJS, TypeScript, React Bootstrap, Bootstrap, Jest, CSS, HTML.ㅤ• Implemented: ToDo application for managing a task list. Key functionality is covered by tests.ㅤ• Code:https://github.com/yuriyvyatkin/react-todos#readmeㅤ• Demo:https://react-todos-430106e733d7.herokuapp.com4. Animation of Historical Eventsㅤ• Stack: React, TypeScript, SCSS, GSAP, Swiper, CSS, HTML.ㅤ• Implemented: Slider, responsive interface, encapsulation of logic, synchronous animation execution, Webpack build.ㅤ• Code:https://github.com/yuriyvyatkin/historical-dates#readmeㅤ• Demo:https://yuriyvyatkin.github.io/historical-dates5. Blog Homepageㅤ• Stack: HTML, CSS.ㅤ• Implemented: Cross-browser compatibility; responsiveness to screen sizes, content overflow, and missing images; pixel perfect; semantic tags and attribute names; W3C validation.ㅤ• Code:https://github.com/yuriyvyatkin/blog-main-page#readmeㅤ• Demo:https://yuriyvyatkin.github.io/blog-main-pageCheck out more projects in my portfolio and on GitHub: • Portfolio:https://yuriyv.netlify.app • GitHub (over 100 repositories):https://github.com/yuriyvyatkin

Business Startups Launch. Achievements:• Created intuitive interfaces for business startups currently used by over 15 entrepreneurs in fintech, e-commerce, education, and logistics.• Designed over 25 reusable UI components, such as pagination, controls, input fields, and forms; optimized performance, reducing web application load times by over 40% and achieving high user satisfaction.• Analyzed and restructured code for over 20 projects, ensuring rapid and high-quality implementation of required features and innovative solutions, leading to significant growth in the user base.

Software Development for International Postal Exchange Center. Achievements:• Integrated APIs of international postal services, including track24.ru and Albato, enhancing shipment tracking capabilities and reducing customer inquiries about delivery by 40% through improved transparency and real-time updates.• Debugged and manually tested over 30 modules related to tracking requests, ensuring compliance with UPU standards.• Implemented JWT-based authentication mechanisms, improving user security and reducing support requests, allowing the team to focus on more critical tasks.• Engineered a highly efficient interface, reducing processing errors and enabling terminal staff to complete tasks twice as fast.