You will get an AI-Powered Document Search Backend (OCR + FastAPI)
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Project details
I’ll build a complete AI-powered backend for document and image search, combining OCR, CLIP embeddings, and a FastAPI architecture for fast, scalable results. Unlike generic setups, this backend is designed for production reliability, clean code, and security, built exactly the way modern AI systems should be.
You’ll receive a modular Python backend that can process PDFs or images, extract text automatically, generate embeddings for semantic search, and return structured, ranked results to your frontend. Every system I build is optimized for long-term maintainability and comes with clear API documentation and versioned data handling.
You’ll receive a modular Python backend that can process PDFs or images, extract text automatically, generate embeddings for semantic search, and return structured, ranked results to your frontend. Every system I build is optimized for long-term maintainability and comes with clear API documentation and versioned data handling.
Machine Learning Tools
ChatGPT, Google Sheets, GPT-3, Microsoft Excel, Microsoft Power BI, NLTK, NumPy, pandas, Python, Python Scikit-Learn, scikit-learn, SciPy, Scrapy, Sonnet, SQL, Tesseract OCR, Word2vecWhat's included
| Service Tiers |
Starter
$1,000
|
Standard
$2,500
|
Advanced
$5,000
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 1 | 2 | 3 |
Model Validation/Testing | |||
Model Documentation | - | ||
Data Source Connectivity | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$300 - $1,200
Admin dashboard / monitoring panel
(+ 1 Day)
+$700Frequently asked questions
58 reviews
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IV
Inez V.
Sep 10, 2025
Experienced AI Developer Needed for Pan-European HR Compliance Tool
As the CEO of a company dedicated to revolutionising HR compliance across Europe, I had a clear vision: to transform my intellectual property and framework into an innovative, user-centric software solution. Cristian not only understood this vision—he brought it to life with precision, creativity, and technical excellence.
From concept to completion, Cristian was instrumental in translating complex regulatory and operational requirements into a practical, scalable tool that aligns with both European labour law and GDPR standards. His ability to absorb intricate ideas and convert them into functional features was nothing short of impressive. Beyond his technical expertise, Cristian is highly intelligent, personable, and an absolute pleasure to collaborate with.
I am profoundly grateful for Cristian’s contribution to this project and cannot recommend his skills highly enough. He has been a key partner in turning a vision into reality, and I would work with him again without hesitation.
From concept to completion, Cristian was instrumental in translating complex regulatory and operational requirements into a practical, scalable tool that aligns with both European labour law and GDPR standards. His ability to absorb intricate ideas and convert them into functional features was nothing short of impressive. Beyond his technical expertise, Cristian is highly intelligent, personable, and an absolute pleasure to collaborate with.
I am profoundly grateful for Cristian’s contribution to this project and cannot recommend his skills highly enough. He has been a key partner in turning a vision into reality, and I would work with him again without hesitation.
WN
William N.
Oct 14, 2024
Python Developer - Participants Needed for Paid research Study
well done.
CS
Chris S.
Dec 5, 2023
All-around Software Engineer, DevOps, QA
Cristian was very knowledgeable and responsive, especially due to the short time pressure.
JD
Jeremy D.
Oct 3, 2023
Seafile System Administrator
thank you for all your help
RL
Rich L.
Sep 26, 2023
Senior full stack engineer for AI / LLM startup
Cristian worked independently and did consistently high quality work for us. Very happy with the result.
About Cristian
AI Systems Architect | RAG Pipelines | LLM Automation | Python FastAPI
100%
Job Success
Timisoara, Romania - 4:33 am local time
15+ years in data-intensive software. The last 3+ years focused entirely on LLM-powered products across regulated and high-stakes domains: legal compliance, HR, energy markets, healthcare, financial data, and CX analytics.
Before AI engineering, I spent 8 years as a scientific software engineer at CNRS (French National Research Centre), building research-grade crystallographic software and managing HPC infrastructure. That background in scientific computing and peer-reviewed research is what separates my work from typical AI integrations: I build systems with rigour, not just speed.
What I deliver:
• RAG pipelines over large document corpora with semantic search, hybrid retrieval, and citation tracking (Pinecone, pgvector, sqlite-vec)
• LLM orchestration — multi-step autonomous workflows, streaming chat, prompt management, structured output with validation
• Production FastAPI backends with auth, caching, background processing, and OpenAPI docs
• Data ingestion and extraction pipelines (PDF, Excel, XML, OCR) with AI + traditional fallback strategies
• Full deployment: Docker, Nginx, Gunicorn, DigitalOcean, Azure
Current production systems include:
— Multi-country HR compliance audit platform with branded report exports
— Portuguese labour law compliance engine with OCR and vector-indexed legal corpus
— AI sales outreach platform orchestrating Perplexity research + Claude composition
— CX analytics platform with streaming LLM chat, survey RAG, and embeddable sessions
— Real-time lightning risk monitoring system processing EUMETSAT satellite data
— Automated payroll extraction from mixed-format archives with banking field validation
I own the full backend scope with minimal oversight. Direct communication, clear progress, blockers flagged early.
Steps for completing your project
After purchasing the project, send requirements so Cristian can start the project.
Delivery time starts when Cristian receives requirements from you.
Cristian works on your project following the steps below.
Revisions may occur after the delivery date.
Kickoff and requirements check
Review your overview, sample files, and hosting preference. Confirm scope, success criteria, and deliverables for the chosen tier.
Architecture and data model
Finalize the stack, database schema, storage layout, and security approach. Share a simple diagram and endpoint list for approval.