Alexey – React, React Native, Node.js

The company's goal is to provide software for its own healthcare network by creating AI-based EHR to drastically improve physicians' workflow across the US clinics

• Led a team of Node.js and React.js developers, providing regular code reviews, mentorship, and guidance to two middle engineers.
• Designed and implemented a scalable Electronic Health Record system using a microservices architecture.
• Designed and implemented an application for complex questionnaires for social workers in Los Angeles.
• Designed and implemented integration for creating Lab orders within multiple laboratories in the US.
• Delivered a patient-facing mobile app using React Native and Expo, focusing on performance, usability, and secure data access.
• Supported production-grade Kubernetes-based microservice infrastructure, ensuring system reliability and scalability.
• Clean code practices through consistent code reviews, refactoring efforts, and performance optimizations.
• Participated in technical interviews to assess and onboard new engineering talent.

The goal of the project was to combine Smart home ecosystems into a single platform.

• Created architecture and implementation of a mobile framework for 3rd-party UI developers
• Implemented a lightweight orchestrator for Docker containers that integrates with the system core and runs on the Raspberry Pi
• Implemented a service for running JavaScript scripts in a sandboxed environment
• Implemented a mechanism for routing data updates via WebSocket from the System Core on the Raspberries to the connected Cloud services and UIs
• Reviewed code and mentorship of 2 junior developers
• Implemented unit tests for different parts of the ecosystem

The project's goal was to allow health care professionals to view diagnostics results and write clinical reports based on the video stream provided by the hardware produced by a leading American medical device company.

• Developed front-end applications for Health Care Providers in the United States and Europe and successfully launched a new product
• Designed Front-end architecture
• Led a team of 3 front-end developers
• Performed code review
• Performed technical interviews
• Performed refactoring and code optimization
• Covered the most critical part of the existing project with end-to-end tests
• Implemented project-specific end-to-end testing system based on Nightwatch.js and integrated with TeamCity CI
• Migrated the large (100k SLOC) front-end project from a legacy framework (Dojo) to React.js
• Implemented the patient-oriented mobile application using React Native
• Designed communication protocol for IoT devices communication based on MQTT protocol
• Performed migration of the old huge 15-year repository from SVN to Git

Complex Web application for Matlab and Excel models management and Cost-Effectiveness marketing application that allowed the company to customize its marketing campaigns.

• Developed mobile front-end application using React.js and PhoneGap
• Developed backend services (user management, scenarios and model execution service) using Node.js and Express.js
• Deployed the back-end project to Linux servers using Ansible
• Expanded projects functionality

Groupon-like mobile application for the Israeli market.

• Developed mobile PhoneGap-based application
• Migrated project from jQuery to React.js
• Performed refactoring and optimizations