Oleh – Angular, .NET, .NET Core

Farm management platform.

• Designed and implemented a robust irrigation function that efficiently consumes messages from the IoT Hub and seamlessly stores them into CosmosDB. This important feature ensures real-time data integrity and accessibility;
• Architected and implemented a dedicated API service that provides seamless access to the irrigation data stored in CosmosDB. This service facilitates efficient data retrieval and supports data-driven decision-making;
• Created a time series data processing function which is triggered by IoT Hub and stores the received data in the Azure Data Explorer (ADX);
• Established a dedicated time series API service to streamline access to the time series data stored in the ADX. This service optimizes data retrieval processes and supports analytical queries;
• Engineered a serial number generation feature that ensures unique identifiers for new devices. This critical component enhances device management and their tracking within the system;
• Defined a comprehensive approach for writing integration tests that were specifically tailored for Azure Functions. This initiative ensured an ability to use the TDD approach for extending the Azure Functions functionality;
• Successfully integrated Hangfire to manage and execute recurring tasks that helped to enhance system efficiency and automated critical background processes;
• Designed and implemented a weather forecast service. This service contributes to accurate forecasting and planning for agricultural operations.

A global financial media and technology platform that provides investors with expert market analysis, macroeconomic insights, educational content, and AI-powered investment tools. The platform delivers high-quality financial research through video content, interactive community features, and data-driven analytics to help individual and professional investors make informed investment decisions.

• Designed and delivered platform features across multiple fintech microservices, contributing to architecture decisions, performance improvements, and system optimization;
• Built a real-time unusual-market-move alerting system for published Trade Ideas, enabling timely user notifications and stronger engagement with market activity;
• Implemented share tracking and analytics across Videos, Reports, Trade Ideas, Notes, and News, giving users visibility into peer engagement and content value;
• Developed a 3-level threaded comment system, community and badge features, and live-streaming chat to support richer peer interaction and user retention;
• Automated video transcription to improve content accessibility and make video assets easier to search and discover;
• Integrated Sendbird, Cryptorank, and ContentStack for chat/messaging, crypto market data, and headless CMS capabilities;
• Performed code reviews, investigated production issues, and collaborated with product, QA, and analytics teams to refine requirements and stabilize releases.

E-learning platform for students.

• Designed and implemented a dynamic labeling system for course packs (trial, bought, buy) to enhance the visual representation of the status on the cards of the pack. This feature provided a streamlined and intuitive way to identify and categorize course packs, improving overall user experience;
• Enhanced the utilization of Elasticsearch by optimizing direct access through the integration of Kafka. This strategic implementation not only refines data flow but also enhances system efficiency, ensuring a more resilient and scalable architecture;

A freight exchange service and provider of transportation.

• Led the redesign of the MongoDB database architecture to optimize it for performance and scalability. Successfully executed the migration to the Amazon DocumentDB to enhance the overall database efficiency and reliability;
• Designed and implemented a robust location tracking service to empower real-time tracking of drivers and enable dynamic distance calculations from drivers to target locations. This feature enhanced precision and responsiveness within the system;
• Conducted a performance analysis and successfully optimized the Request Per Second (RPS) for key system endpoints. Implemented enhancements resulting in improved response times and overall system efficiency;

A web application for the automotive field.

• Engineered a comprehensive seven-step wizard, providing a user-friendly and configurable interface;
• Implemented dynamic reconfigurability for each step, allowing users to choose visible fields and set mandatory requirements;
• Conducted rigorous code reviews to ensure code quality and adherence to best practices;
• Crafted technical designs for upcoming features, ensuring a robust and scalable architecture;
• Successfully integrated third-party libraries, expanding the project's functionality and capabilities;