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Borislav N.

Borislav N.

Senior LLM Engineer | AI Agents, RAG, Voice AI

I help companies build production AI systems that automate workflows, improve customer operations, and turn complex data into useful decisions. Over the last 5+ years, I have delivered 20+ projects across fintech, proptech, media, and content platforms. My work includes AI support agents connected to Zendesk and internal APIs, compliance and adverse media monitoring for European banks, multi-agent investment analysis systems, trend detection pipelines, RAG applications, and real-time voice assistants. I work end to end, from solution design and backend development to LLM orchestration, evaluation, deployment, and integration. I am strongest in projects that need both solid engineering and practical AI product thinking. What I can help you build: • AI agents and workflow automation • RAG systems and knowledge bases • LLM and NLP applications • Voice AI and real-time conversational systems • Information extraction, classification, summarization, and search • Python backends, APIs, and AI integrations Core stack: Python, FastAPI, LangGraph, LangChain, OpenAI, Claude, Gemini, Mistral, Llama, Whisper, Pinecone, ChromaDB, PostgreSQL, Docker, and AWS. If you need an engineer who can turn an AI idea into a reliable shipped product, I would be glad to help.

🇪🇸Barcelona, Spain$60/hr100% JSS5.00 (5)Since Nov 2022

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#27,192 / 412k
🇪🇸Country#334 / 4,023
Revenue, last 30 days
$0
Total earnings
$135k

Billed in all: $142k

World#27,192 / 412k
🇪🇸Country#334 / 4,023
Per project
$9.6k
Projects, last 6 months
0
World#209,850 / 412k
🇪🇸Country#1,967 / 4,023
Projects in all
14

Across 15 contracts

13% fixed87% hourly
World#168,283 / 412k
🇪🇸Country#1,568 / 4,023

Earnings, last 30 days

$142kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$138k$140k$142k$144kOct 8Oct 23Nov 7

Skills