Bohdan Papushoi

February 2025 – Present|Ukraine

Enterprise Analytics Platform: Architected multi-tenant apps using NestJS, PostgreSQL, and React for business analysis via registers (EDRPOU). Built RBAC, DB tenant isolation, and RabbitMQ scraping pipelines.
AI Call Analytics System: Developed audio scoring engine with React frontend (drag-and-drop & SFTP/webitel ingestion), integrated with OpenAI & ElevenLabs APIs for call evaluation.
AI Verification & Asset Valuation: Built document compliance pipelines (Claude API, NBU, YouControl), test generation tools (OpenAI Assistants), and a collateral valuation search engine (Developers.RIA API, web scraping, OpenAI matching) with Excel reporting.
Automated Support Bot & Messaging: Built Helpcrunch automation module utilizing Redis caching, Webhooks, custom rule engines, and RabbitMQ for asynchronous message handling.
Multimodal AI Platform & Billing Engine: Engineered Web & Telegram backend for text, voice, image, and music generation, implementing custom usage analytics and token/credit expense tracking mechanisms (Node-RED, MongoDB).
Project Leadership: Owned backend architecture end-to-end, defined API specs, and mentored Junior developers.

November 2023 – February 2025|Ukraine

AI-Powered Web & Messaging Bots: Developed 5+ enterprise AI solutions for Telegram & WhatsApp using Node-Red, MongoDB, ChromaDB, and Appsmith management dashboards.
RAG Architecture & Knowledge Retrieval: Built context-aware assistants utilizing vector databases (ChromaDB) and RAG patterns for automated document parsing and support.
Multimodal Media Integrations: Engineered workflows with voice synthesis (ElevenLabs, Whisper STT), image processing (Midjourney, Flux), music generation (Suno).

Work Experience