At Vention Development LLC, I built a Node.js backend and GraphQL API for a communication and reporting product used by multiple organizations. I designed its data separation and connected services through RabbitMQ.
I also built a document-processing pipeline with file validation and connected documents to a RAG pipeline, so the AI assistant could answer questions using each organization's files. I added real-time chat and connected the existing frontend to the backend.
At EPAM Systems, I built the PawCare frontend so veterinary clinics could take appointments online. I implemented appointment availability and booking confirmation through the clinic API, and provided separate screens for clients, veterinarians, administrators, and reception.
At LeverX, I built a NestJS backend for an online vinyl store, including its catalog, search, and customer features. I integrated Stripe checkout and payment confirmation emails, and separated staff tools from customer accounts.
