Oleksandr Hrabovyi Email & Phone Number

Kyiv, Ua

Kyiv, Ua

Remote

Project: innovative startup focused on creating a platform for the casino and gambling industry. My role involves developing scalable backend systems, ensuring high performance. A significant portion of my work includes integrating with third-party services to enhance the platform’s capabilities

Ukraine

Project: Power plant software used for equipment failure prediction based on machine learning.Role and responsibilities: - Implementing changes to business logic according to client’s requirements;- Participating in analysis of new features requested by client and suggesting alternative solutions;- Integrating new complex features to existing codebase;Technology stack: Node.js, NestJS, TypeScript, RabbitMQ, PostgreSQL, TypeORM

Westport, Connecticut, United States

Project: B2B trading platform for industry-leading manufacturer of heavy-duty, portable electric power toolsRole and responsibilities: - Sole responsibility for backend API layer based on NodeJS- Creating new features on UI layer using React- Developing new features by aggregating and processing data from other REST APIs - Creating mock APIs to ensure even team workload and provide client demo features before they are actually implemented.- Cooperating with QA team to identify the faulty API layer in the product- Participating in analysis of new features requested by client and suggesting alternative solutionsTechnology stack: Node.js, React, Redux, Express, FeathersJS, Axios

Warsaw, Mazowieckie, Poland

Project: Resource planning system for construction equipment company.Role and responsibilities: - Utilizing NestJS framework for creating REST API;- Creating calculations according to business logic;- Defining schemas for DB;- Creating all required routes to interact with API;- Setting up user authentication and authorization, setting up authorization middlewares;- Communication with the customer;Technology stack: Node.js, Express, NestjS, Mongoose, MongoDB;

Warsaw

Project: Planning & analytics system for IT company.Role and responsibilities: - Designing routes;- Implementing user authentication and authorization;- Implementing DB schemas and requests;- Realization of changes to current solutions;- Implementation of new features required by client;Technology stack: Node.JS, Express, PostgreSQL, Sequelize;

Kyiv City, Ukraine

Project: E-commerce book shopRole and responsibilities: - Implementing back-end part using Node JS + Mongo DB;- Applying changes to API business logic according to client’s requirements;Technology stack: Node.js, Express, MongoDB, Mongoose