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Development & IT Consultation with Igor B.

4.9 · 217 reviews

Development & IT Consultation with Igor B.

4.9 · 217 reviews

AI Integration Specialist | LLM & Automation Expert

I help businesses integrate AI-driven solutions into products and workflows - fast, reliable, and production-ready.

What I Do:
• Build end-to-end AI pipelines for data enrichment, document processing, chatbots, and analytics.
• Integrate OpenAI, LangChain, OpenRouter, Azure AI, Langfuse, Perplexity into web apps and APIs.
• Automate workflows using Python, FastAPI, Node.js, and cloud platforms (Azure, AWS).
• Design LLM-powered agents for reasoning, RAG search, and process automation.
• Implement cognitive search, OCR, and data transformation for enterprise use cases.

What You Get:
• Scalable architecture for AI/LLM integrations.
• Secure, cost-optimized deployments on cloud or on-prem.
• Production-ready workflows with full observability: monitoring, logging, and metrics.

Let’s build AI systems that deliver real business value at scale - beyond prototypes.
Get personalized advice on:
AI & Machine Learning AI Data Annotation & Labeling AI Integration AI Speech & Audio Generation Prompt Engineering langfuse langchain azure bot service azure ai vision azure cognitive services

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Igor B.Status: Offline

About Igor

Igor B.Status: Offline
Senior Backend Engineer | Python, Node, .NET | AI Integration & ETL
100% Job Success
4.9  (217 reviews)
Belgrade, Serbia - 2:15 am local time
I build scalable backend systems, data pipelines, and automation platforms used by SaaS, fintech, and e-commerce companies.

With 14+ years of backend engineering experience, I specialize in designing high-performance APIs, distributed ETL pipelines, and large-scale automation infrastructure.

$500K+ earned on Upwork across 270+ projects building backend systems and data platforms.

Key strengths:
• Backend architecture (Python, FastAPI, Node.js, .NET, PostgreSQL, Supabase, Celery/RabbitMQ/Redis)
• Data pipelines & ETL systems
• AI integrations and RAG pipelines on vector databases (pgvector, Pinecone, Qdrant)
• Large-scale data extraction and reverse engineered APIs
• Distributed workers and automation infrastructure

I focus on performance, reliability, and long-term maintainability, delivering backend platforms that grow with the business and remain stable under heavy load.

Core technologies

Python, FastAPI, Node.js, .NET Core, PostgreSQL, Redis, Supabase, Qdrant, Pinecone, Docker, Celery, RabbitMQ, Playwright, Selenium, Scrapy, REST APIs, GraphQL, ETL pipelines, vector search, distributed workers, cloud infrastructure (AWS/GCP/Azure), LLM, Langchain, Langfuse, BMAD

What to expect

Schedule the consultation
Choose from the freelancer’s available days and times.
Get advice for your custom needs
Share details about your project and what you want to talk about. The freelancer will review and reach out if they have questions.
Join the Zoom meeting
1-on-1 meeting with the freelancer to discuss your needs and project.
Approve the work
The freelancer will finish up the documents you asked for and send them to you for approval:
    Before the consultation

    Here’s what Igor will need to know before you meet

    1. What would you like to discuss?
    Rating is 4.9 out of 5.
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    TN
    Troy N.
    5.0
    Oct 29, 2025
    Extremely knowledgeable and competent consultant.
    IN
    Ivan N.
    5.0
    Sep 23, 2025