Vladyslav – Typescript, JavaScript, Node.js

A product from a leading consultancy that provides the ability to create an environment for data analytics and cloud teams with a catalogue of tools. Platform provides such feature:

• Every team has own cabinet, where can manage access, members, tools inside of project, see billing options and current state
• User can create and manage own tools and post it to marketplace inside of platform
• Knowledge base with wide range articles integrated from different sources

• Redesigned the existing UI
• Built different shared packages inside of monorepo
• Worked on customer support and feedback
• Wrote integration and e2e tests
• Migrated project from React to Next
• Developed forms with a wide range of dependencies and different flows, depending on the user's choice

This product helps people create high-performing video ads quickly and easily. On the service, users are able:

• Create and edit videos
• Use pre-defined templates

• Worked on redesigning application
• Involved in covering project with Typescript
• Involved in backend optimisation and refactoring
• Worked on adding new endpoints
• Fixed performance issues

Service provides the ability to set up infrastructure for Analytics projects where you can create a team of people and add different services to the project. Every team can control the budget and cost of that project.

• Supported existing code on the platform
• Created functionality page constructor using CraftJs
• Wrote integration and E2E test
• Involved part in developing the backend part for page constructor using NestJs and MongoDB

MVP version of the project for making reports with importing all related services and data. Involved into developing MVP version of project from scratch, we developed platform where users can build UI blocks (HTML, CSS,JS) which later will be converted into Java build blocks and user can use it for building UI.

• Involved in design and developing a platform from scratch
• Implemented Auth for project
• Covered project tests using Jest/React-testing-library
• Developed UI component libraries and store it as separate private NPM package
• Performed code reviews

Project for one of the largest consulting companies platform providing analytics services for customers, where users can search, read details and requirements of tools. Also, users can understand the cost of usage.

• Added Auth and SSO auth
• Took part in backend service (updating API, adding new endpoints)
• Wrote tests using React-testing-library, Jest
• Added developer tools (ESLint, Pre-commit hooks)
• Performed code review
• Involved into planning and designing new features
• Migrated project to Typescript

An educational project for Carnegie Mellon University. This LMS platform provides such features:

• Students can take lectures prepared by lectors.
• Students and teachers have their personal cabinet, where they have notifications, assignments, etc.
• Reading books with such features as commenting, bookmarking, etc.
• Teachers can create a schedule and students can check this lecture schedule

• Supported existed front-end
• Implemented auth for the platform
• Involved in redesigning feature for reading books
• Built reusable UI components
• Worked on fixing bugs and user feedback improvements
• Integrated Github Action workflows
• Added developer tools such pre-commit hooks, prettier.

Horse racing statistics platform which aggregates data about races from different sources. Platform provides such features:

• Table with a wide range of indicators on horses in real time (polling)
• Table could be filtered and sorted by different combination of topics
• Get detailed information about the horses and jockeys
• Bookmark your favourite horses and jockeys
• Schedule of future races

• Redesigned application with highly loaded table
• Added filtering and custom sorting to the table
• Worked on performance optimisation for UI
• Implemented polling to update data in real time

One of the largest E-commerce platforms in Ukraine with a wide range of products and services for customers.

• Worked on migration from Vanilla js + PHP Twig to SPA using Vue.js
• Added new features to the platform and took part in the discussion of new features
• Supported CRM system and legacy parts of the platform
• Focused on core web vitals optimisations and SEO optimisations since its was pretty important as for E-commerce product.