Experience

Join.To.IT

• Ukraine
• Software Development
• 1 - 100 Employee

• Back End Developer

  • Feb 2023 - Present

  • Developed a feature-rich calculator for furniture costing, enhancing operational efficiency and pricing accuracy. • Managed user-specific access and material availability updates, refining system control and data visibility. • Upgraded legacy code to accommodate new features, enhancing system maintainability and performance. • Utilized database denormalization to optimize PostgreSQL query performance, improving system response times. • Developed a feature-rich calculator for furniture costing, enhancing operational efficiency and pricing accuracy. • Managed user-specific access and material availability updates, refining system control and data visibility. • Upgraded legacy code to accommodate new features, enhancing system maintainability and performance. • Utilized database denormalization to optimize PostgreSQL query performance, improving system response times.



TechMagic

• Poland
• IT Services and IT Consulting
• 100 - 200 Employee

• Back-end Developer

  • Mar 2022 - Jan 2023

  • Created APIs for MongoDB data retrieval, improving data interaction and accessibility. • Initiated migration schemas, enhancing database schema evolution. • Established and configured OAuth for robust user authentication and authorization. • Refined SQL queries and devised complex subqueries, augmenting database performance. • Created an API for updating board data in real-time, akin to Jira's functionality. • Implemented schema descriptions and data validation for JavaScript using the Joi library, enhancing data integrity and system reliability. • Created a service for seamless data conversion from Excel to MongoDB, streamlining data input processes. • Managed MongoDB and Sequelize schema migrations, maintaining database consistency and relevance. • Converted a Python project to Node.js using TypeScript, enhancing code maintainability and performance Show less



Emma

• Internet Publishing
• 1 - 100 Employee

• Full Stack Developer

  • Jan 2021 - Jan 2022

  • Augmented the functionalities of existing web applications, improving operational efficiency. • Generated and presented detailed reports and statistics. • Established a CI/CD pipeline, boosting development efficiency and product reliability. • Implemented real-time price updates for all database items using Puppeteer, ensuring data accuracy. • Developed features for generating and scheduling reports in PDF and Excel formats. • Implemented download/upload features from/to Firebase storage for efficient document management. • Automated the bill payment process, enhancing financial transaction efficiency. Show less



Business Group Logistics

• Ukraine
• Freight and Package Transportation
• 1 - 100 Employee

• Full Stack Engineer

  • Jan 2020 - Jan 2021

  • Developed a real-time web application using Google Maps API for tracking and data visualization. • Designed and implemented the application's architecture, ensuring scalability and performance. • Configured user access levels for information security and access control. • Integrated Google Authentication for secure user access. • Developed a real-time data update API, facilitating timely tracking information. • Developed a real-time web application using Google Maps API for tracking and data visualization. • Designed and implemented the application's architecture, ensuring scalability and performance. • Configured user access levels for information security and access control. • Integrated Google Authentication for secure user access. • Developed a real-time data update API, facilitating timely tracking information.



BCommute

• Киев, Украина

• Full Stack Engineer

  • Jan 2019 - Jan 2020

  • Integrated Google Authentication for secure user access. • Customized the "vue-beautiful-chat" widget with Firebase for efficient real-time chat. • Implemented a chatbot for appointment coordination. • Developed an admin panel for managing chat rooms, customer information, and appointments. • Engineered an appointment scheduling system based on client interactions, using a decision tree approach for business logic implementation. • Integrated Google Authentication for secure user access. • Customized the "vue-beautiful-chat" widget with Firebase for efficient real-time chat. • Implemented a chatbot for appointment coordination. • Developed an admin panel for managing chat rooms, customer information, and appointments. • Engineered an appointment scheduling system based on client interactions, using a decision tree approach for business logic implementation.