Artem – Typescript, React, React Native

A financial services company that provides an online expense management service for businesses. It's a huge open-source project with a market cap of more than 350mln USD.

• Was engaged in architecture, documentation preparation, and development of new features;
• Improved performance of the sidebar in 3 times and with caching in 15 times;
• Fixed tons of difficult issues as an Open-source contributor;
• Initiated and finished the transition from moment.js to date-fns within the whole application;
• Closely worked with new features.

This technology makes insurance risk transfer faster and more efficient. It connects investors and cedents to transfer and trade insurance risk. Through the platform, cedents can reduce their cost of capital, and investors get access to a broader universe of uncorrelated investment opportunities.

• Connected application with firebase (firestore, storage, auth, etc.);
• Implemented dynamic huge forms for both investors and cedents;
• Started migration to TypeScript;
• Implemented advanced text edit inputs;
• Improved and refactored almost the full application;
• Debugged and resolved a huge amount of issues.

Basketball application that was built for the USA basketball NBA league to cover all basic needs for players, such as finding personal drivers, order cleaning, booking a room or hotel, and much more.

• Created front-end architecture;
• Worked directly with client;
• Successfully delivered project on time;
• Resolved bunch of issues;
• Integrated with NBA API;
• Added authentication;
• Implemented difficult nested navigation and deep-linking.

An e-commerce platform that has grown a lot in the last couple of years. The company works with the biggest supply shops like Auchan and Carrefour. This system allows supermarkets and restaurants to handle the day-to-day store info, products, offers, orders, and anything related to products available for the end consumers on the app.

• Led the development of the project and delivered everything on time;
• Mentored junior developers;
• Optimized dynamic SEO in React application using SSR with Firebase and Node.js;
• Implemented reporting system on the client's dashboard;
• Made a huge refactor moving from JavaScript to TypeScript;
• Significantly improved app performance by cleaning Redux storage; optimized forms
• Integrated with external APIs;
• Worked a lot with GraphQl for headless CMS.

An innovative tool that allows users to seamlessly create, manage, and analyze surveys within your Slack workspace. With this system, users can easily gather feedback and insights from their employees and generate reports.

• Created front-end architecture;
• Connected an application with an API;
• Built Reporting system;
• Added an automated system for sending surveys to Slack.

The freelance platform is a user-friendly system with a unique design and animations that simulate a Solar System-like layout and connects businesses with skilled freelancers worldwide. The system includes communication, collaboration tools, and payment processing.

• Created unique animations;
• Built a Solar System-like design;
• Implemented payment system;
• Configured navigation for the whole application;
• Added multiple pages using React;
• Integrated an application with API;
• Implemented communications system using sockets;
• Fixed a bunch of bugs and issues.

A management system that received 1.3mln $ of investments that helps businesses manage resumes, send them to customers, generate PDFs, generate email signatures, track employee vacations and sick leaves, and much more.

• Created PDF generation system with React;
• Built email signatures generation system;
• Implemented a huge form for an online resume preview;
• Wrote unit tests;
• Debugged and resolved bugs and issues.

A web application that may help to replace the traditional methods of appointment with a doctor. This application will help people unable to come to the hospital to receive full-fledged feedback from the doctor using video conversion. At this stage, the doctors with whom we cooperated released the first version of the application for testing it with real patients.

• Created front-end architecture;
• Implemented chat and video chat solutions from scratch using sockets;
• Added admin panel for doctors;
• Implemented a calendar with time slots for doctors.