Artem L.

Developed a fullstack web app (NestJS + React) deployed to Azure Container Apps, featuring a ChatGPT-like interface with support for multiple conversations, response rating, and follow-up questions. Built tools to manage and prioritize data sources — users can upload files, add links, and mark key people whose messages carry more weight in the analysis. Implemented a section for generating reports and charts based on conversation data. Set up a module for changing AI models and managing ML-related settings. Created a WhatsApp scraper service to collect group messages and media files, including QR-code-based authentication. Integrated with Microsoft Teams and WhatsApp to streamline communication. Added features like shared conversations, system health checks, and a dashboard to control data ingestion.

Backend Development: Designed and implemented RESTful APIs using NestJS, deployed on AWS EC2, to generate tax-related chatbot responses integrated with a fine-tuned LLM. Database Integration: Optimized queries and data management in MongoDB Atlas (hosted on AWS), ensuring efficient retrieval of tax data and user interactions. AI Model Integration: Integrated the backend with a fine-tuned, domain-specific LLM hosted on AWS SageMaker to provide accurate and context-aware tax insights. Frontend Development: Scaffolded and developed the React frontend, deployed via AWS CloudFront, implementing complex state management and WebSocket-based real-time features. Authentication & Security: Integrated AWS Cognito for authentication, enabling OAuth, multi-factor authentication (MFA), and role-based access control (RBAC). Used AWS S3 for static asset storage.

Engineered RESTful APIs for storing reports and metadata. Developed a service for generating medical report PDFs. Wrote unit and e2e tests for backend/frontend. 80% of the total coverage. Implemented feature-rich AI-driven document editor with formatting, annotations, QR/barcode generation, version history, voice commands and report summaries. Designed and integrated a template manager with predefined document templates. Coordinated between separate teams totaling 100+ member teams