Oleksandr – React, Typescript, JavaScript

Primary responsibility consisted of supervising and managing the company’s product cloud infrastructure and intorducing fixes and/or improvements based on the end user requests. The infrastructure consisted of a multitude of accounts belonging to one AWS Control Tower managed by IaC (Infrastructure-as-Code), mostly using Amazon CloudFormation. Other parts consisted of CI/CD Tools (Octopus Deploy, TeamCity) and several custom automation solutions written in Python [rogramming language and platform-specific shell scripting languages (Powershell/bash)

• Developed and maintaining leaderboard components, creating new markup
• Added new features to the API services
• Communicated with the team, coming up with new ideas for promotion tools

A leaderboard module integrated into slot games.

• developed the leaderboard components
• fixed bugs and maintained the project.

A dasboard for managing photo stock and products.

• developed the general app architecture (front-end and backend) and components;
• deployed to Firebase environment;
• maintenaned application.

A web platform designed for insurance agents to collect data about the property, calculate risks, and create and manage quotes and policies — wildlife in national reserves and parks located in South Africa.

• designed the interaction of applications and API;
• enhanced custom components library;
• uncovered and highlighted deficiencies and made recommendations for improvement;
• communicated with the client;
• managed tasks, risks, and time estimation.

An application was developed for automating the processes in the curtain manufacturing factory. It consisted of separate applications sharing one database. The primary application was web-based to manage the current stock of ready production and orders written in Django. The other applications were a client application for RaspberryPi workstations, used to operate various factory machines written in Python + Tkinter, and an application for handheld barcode scanners running Android written in Ionic framework.

• implemented new components;
• maintained the application;
• covered the project with tests.

An application for managing factory processes and workflow (stock, orders, etc.).

• developed and maintained the application;
• wrote unit and integration tests.

An application using canvas to create logos with drag’n’drop features.

• refactored the code (breaking into different components from a single monolith React app);
• added new features;
• fixed bugs.

The project aimed to develop a dashboard that aggregates the data from the client machines in the network displays the charts with overall CPU and hard-drive performance, and acts as a plugin for a third-party system administration dashboard.

• created the front-end application from scratch;
• helped the back-end developer in developing the RoR API;
• troubleshoot and addressed server issues.