Davit Matevosyan

- Worked on different projects covering complex architectural and business requirements such as: - Implemented handling for various IoT event types (temperature spikes, smoke detection, and other device signals). - Added structured logging and built Grafana dashboards to improve monitoring and visibility. - Implemented new business logic and expanded feature sets in a complex event-driven environment. - Created new Service Bus queues to support separate business workflows. - Updated and optimized existing message handlers to meet evolving business requirements. - Investigated and resolved intricate cross-team business logic issues involving multiple frameworks. - Onboarded newcomers through hands-on demonstrations of system architecture and workflow. - Gathered requirements and coordinated with a third-party data provider to request additional data properties. - Improved performance drastically, reducing long-running requests from 20–30 seconds down to 2–3 seconds. - Worked directly with the third-party provider to streamline and optimize integration workflows. - Enhanced and extended complex business logic modules to support new product needs.

- Integrated with a poorly documented third-party payment provider API, through active communication with the provider's development team. - Extended multiple core functionalities and expanded existing data models to meet new product requirements. - Built a patient notification system from scratch, covering logic, delivery flow, and reliability safeguards. - Refactored large parts of a legacy front-end codebase to improve structure, maintainability, and performance. - Refactored backend services to clean up technical debt and standardize logic across modules. - Handled production issues under strict deadlines, prioritizing stability and quick turnaround.

- Improved core microservice infrastructure, including structured logging and improved observability. - Maintained and enhanced an integration-mapping microservice, ensuring stable data flows between services. - Refactored legacy HTTP clients to improve performance, reliability, and code quality. - Migrated interprocess communication from HTTP to gRPC, reducing latency and simplifying service-to-service interactions.

- Maintained and improved the MetaTrader 4/5 integration, ensuring stable and reliable trading operations. - Integrated multiple third-party payment providers, handling end-to-end implementation and troubleshooting. - Delivered critical production fixes under tight, high-pressure deadlines, prioritizing stability and fast turnaround.