Volodymyr Sevastianov Email & Phone Number

Lublin, Lubelskie, Poland

Some achievements:Was responsible for key parts of the development process in a team with direct communication with clientDeveloped the first 3 components with new architecture for the new library and shared knowledge with a teamMade 8 unification for component’s parameters. That prevented simultaneous work of a few developers on the same features.Independently organised collaboration with developers of Indian’s team to have simultaneous work on similar components and had updates with 0 merge conflicts.Mentored new team members and helped them to complete the onboarding process, solve issues with tasks and improve best practices on code review.Improve business analytics of the tasks and did about 10 critical corrections to each manual for new components development. And sometimes performed duties of Project Manager on task management (simultaneously with the development process), at the most active part of project delivery

Sweden

Developed from a scratch tree-based structure for multi-level form with nested selectors. Increase the user's speed of creating complex building elements (a few sec instead of min).Invented smart & default naming functions. Increased creating elements speed more than 100 times thanks to automatic naming.Proposed 22 features and UX/UI improvements. UI became more convenient and easy to use.Developed frontend part of element versions functionality that was one of the main features of our comparison and analytics application.Using charts and tooltips of chart.js, I developed a more informative presentation of part of the graphical interface that eloquently places 3.5 times more information in the same space.Did additional releases to production. Clients were happy to receive features they ask 1.5 - 2 times more often (every 1-2 weeks).Supported trainee teammates to become familiar with technologies and our application. that saves 1-3 hours a week of the team leader to let him be fully focused on the development.Used Sentry to identify and quickly fix errors in production in 1-4 hours. which directly helped to retain existing customers.Connected Amplitude product analytics by API, set 32 reports and wrote clear documentation. The product owner got an analytic tool to make strategic decisions on planning new features.Made an improved system confirmation dialogs. that reduced the number of dialogues by 3.5% but warned users when it was necessary only.Implemented 4 types of sorting, including custom. Users got crucial features to manipulate the order of UI elements.And of course: fixed bugs, resolved merge conflicts, optimized performance, wrote unit tests, did code reviews and had great team work.

Львов, Львовская Область, Украина

• Developed new features, pages, and UI elements with React• Replaced WordPress and Jquery by Laravel and Vue• Designed and developed highly responsive pixel-perfect user interface components• Translated designs & wireframes into high-quality code• Used version control systems GitLab and GitHub, following Git-flow workflow• Improved functionality and performance of the App• Communicated with the designer’s team and discuss UX/UI propositionsProject 1: Portal for EmployersQuickly got familiar with the old React codebase and developed 5 useful features to add comments. Admins got a feature to receive feedback from the employers on corporate publications. Project 2: Real estate in United Arab EmiratesIn collaboration with the designer, I develop 8 pixel perfect screens for a new interface with tailwind css.I also discovered 12 significant UX issues on the design stage, convinced the project manager to agree on the redesign with the client, and helped the designer to fix it in 2 hours. That prevents implementation of wrong architectural solutions and saves more than 40 working hours for possible fixes. Project 3: Large site for finding jobs and employees in EuropeIn 7 days I figured out how to work with Laravel and Vue.js. And in close collaboration with backend specialists, I created the frontend part for the multilingual web application from 4 obsolete WordPress websites. Project 4: One of the world's largest confectionery manufacturers portalIn two weeks I developed the frontend for the advanced ticket booking calendar. That gave the possibility to order tickets with different discount options online, increased ticket sales by more than 20% and reduced the load on cash registers by more than 40%. I also developed the frontend for online queue. That feature significantly impacted customer satisfaction

Ukraine

Favorite projects:Healthy food manufacturer online storeI invented and implemented systems for calculating:- smart discounts (both for retail and wholesale clients). That completely changed the business model. Instead of searching and negotiating with new clients, the sales manager began processing orders. The number of orders has increased 8 times in 2 months- cost of a parcel. The store started to deliver products by weight for HORECA (immediately increased products by weight sales more than 5 times).- cost of packaging and cooler. The store started to deliver perishable products in the warm period of the year (additional sales in spring and autumn) - order details and integration with CRM. Speeded up the work on orders management for production director by 60%Raw oils online store (oliya.com.ua)I designed and developed 2 language SEO-optimized (SSR) online store MVP on React.js in 2 weeks. So, customers get first orders in the first month of the start of the project.Educational multilingual portalI led a team of 5+ people (developer, QA, designer, editors) for more than 10 years. Starting from a blog with several visitors, to a rich content educational portal in 3 languages with up to 825 visitors a dayVacation property rentalI developed a website with filter by options, search, different types of view, currency selector, pop-up maps, booking and other forms, calendar of availability. Successful startup that continues to work for more than 8 years.Mobile phone comparison serviceSpecial feature was automatic text processing for uniqueness (for SEO-optimisation). Product descriptions get a uniqueness level of 90-95%, while maintaining readability and semantic quality. Search engine snippets generator and editorInvented and implemented web application (JS) with 2 main modules. Generator parsed the website menu using the provided link and created code from it. Web application became the simplest and handiest search snippet tool at that time.