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I am looking for an experienced developer (or small team) to build a configurable AI-based system for document processing and data extraction. The system must not only extract text from documents, but also interpret and validate the extracted data against external datasets. Core requirements: Import documents (PDF, images) from folders or APIs AI-based document classification (different document types) Data extraction using AI (not template-based only) Validation and matching logic against external data sources (e.g. product catalogs or structured datasets) Ability to handle partial matches, inconsistencies, or missing data Configurable rules for matching and validation (no hardcoding) Feedback loop: when data is not correctly recognized, the system should allow correction and improve future results System features: Modular architecture API-based integration with external systems (ERP or others) Basic interface for configuration and validation Logging, error handling, and traceability Nice to have: Use of LLMs or advanced AI models for document understanding Human-in-the-loop validation workflow Ability to “learn” from corrections over time Tech preferences: Open to proposals, but preferred: Python (for AI/ML components) REST APIs Docker-based deployment on Linux Use of open-source AI tools where possible Goal: Develop an MVP that can be extended into a more advanced system.
Project ID: 40345588
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Active 13 days ago
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151 freelancers are bidding on average €2,309 EUR for this job

I have over a decade of experience in web and mobile development, with a strong background in AI/ML and blockchain technologies. I understand your need for an AI-based document processing system that can efficiently handle document classification, data extraction, and validation against external datasets. My expertise in developing scalable solutions using Python for AI/ML components and REST APIs align perfectly with your project requirements. To address your specific needs, I propose implementing advanced AI models for document understanding and incorporating a human-in-the-loop validation workflow. My past successes in AI/ML development, including projects with blockchain and high-traffic apps, demonstrate my ability to handle the complexity of your task effectively. I am excited to discuss the roadmap for your document processing system further and explore how we can collaborate to bring your vision to life. Feel free to reach out to me through messages to initiate our conversation.
€2,400 EUR in 30 days
8.9
8.9

Hi, I went through your requirement for building a configurable AI-based document processing system. My understanding is that the platform should import PDFs/images from folders or APIs, classify document types using AI, extract key data intelligently (not just templates), and validate the results against external datasets like product catalogs. It also needs configurable matching rules, the ability to handle partial or inconsistent data, and a feedback loop so corrections improve future results. A possible approach would be using Python with OCR + LLM-assisted extraction, a rule-based validation engine, REST APIs for integrations, and a lightweight web interface for configuration and human validation. Docker can package the services for Linux deployment. A few quick questions: How many document types are expected initially? Do you already have sample datasets for validation? Should the learning loop retrain models automatically or store rule-based corrections first? Happy to discuss further and refine the architecture based on your datasets and workflows. Best, SNR
€2,000 EUR in 10 days
9.0
9.0

Hi, You're building an AI document processor that needs to adapt across different use cases—that's the smart play. Before we dive in, what's your priority: accuracy on specific document types, or flexibility to handle anything thrown at it? I've shipped systems like this. Let's talk details. Best Regards, Hasan
€1,500 EUR in 60 days
8.7
8.7

⭐⭐⭐⭐⭐ Build an AI-Based Document Processing System for Efficient Data Extraction ❇️ Hi My Friend, I hope you're doing well. I've gone through your project needs and see you're looking for an experienced developer to create an AI-based system for document processing. You don't need to look any further; Zohaib is here to assist you! My team has completed over 50 projects similar to this. We will build a configurable system that extracts and validates data effectively, ensuring it meets your needs. ➡️ Why Me? I can easily build your AI document processing system as I have 5 years of experience in AI development, data extraction, and system integration. My expertise includes Python programming, REST API development, and Docker deployment. I also have a strong grip on modular architecture and logging systems, ensuring that your project runs smoothly and efficiently. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Python Development ✅ Data Extraction ✅ AI Integration ✅ REST APIs ✅ Docker Deployment ✅ Document Classification ✅ Validation Logic ✅ Modular Architecture ✅ Error Handling ✅ Logging Systems ✅ API Integration ✅ Data Interpretation Waiting for your response! Best Regards, Zohaib
€1,800 EUR in 2 days
8.1
8.1

Hi, This is Elias from Miami. I checked your project description and understand you’re looking to build a modular AI document-processing system that can ingest PDFs/images, classify document types, extract key data, validate it against external datasets, and support correction workflows so the system improves over time. I’ve worked on similar Python-based automation and data-processing systems, including OCR/AI extraction flows, API integrations, configurable validation logic, and Docker-based deployments. My approach would be to design the MVP in layers: document intake and classification, AI extraction pipeline, configurable matching/validation engine, human review flow for exceptions, and a clean API + admin interface so the system is reliable now and easy to extend later. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – What document types do you want the MVP to support first, and do you already have sample files for each type? Q2 – What external data sources need to be used for validation in phase one: ERP APIs, product catalogs, spreadsheets, or databases? Q3 – For the feedback loop, do you want corrected entries to retrain/customize the extraction logic automatically, or should they first improve results through configurable rules and human-reviewed mappings? Looking forward to hearing from you.
€2,250 EUR in 7 days
8.0
8.0

Hi there, I have completely read your project details, and we are ready to start immediately. We will build a configurable AI-based document processing system that not only extracts text but also intelligently validates and matches the data against external datasets, allowing for flexible, scalable growth. Our approach is to create a modular system with AI-driven document classification, data extraction, and validation using flexible, rule-based logic. The system will support continuous improvement through a feedback loop and can easily integrate with external systems via APIs. 1. Do you have any specific external datasets or systems you'd like the platform to integrate with initially (e.g., ERP, CRM)? 2. Are there any specific AI models or libraries you'd prefer for the document understanding component (e.g., OpenAI, SpaCy)? 3. Would you like to incorporate a particular user interface for the configuration and validation process, or should it be basic for the MVP? I would love to chat with you about your project in more detail. Looking forward to connecting with you! Regards, Saima.
€1,500 EUR in 7 days
7.4
7.4

With strong experience in AI development, Python, and automation, I am confident in building your AI-based document processing system efficiently. I specialize in GPT-4o, Claude, LangChain, and RAG systems, allowing me to create intelligent data extraction solutions that go beyond fixed templates. I can develop a modular and scalable system with Docker-based deployment on Linux, along with seamless REST API integrations and database handling. My experience with tools like n8n, Make, and Zapier helps in building smooth data pipelines and external integrations. I focus on delivering a solid MVP that is optimized for performance and easily extendable into a more advanced system. My goal is to ensure reliability, efficiency, and long-term scalability. Thanks & Regards, Jay
€2,250 EUR in 7 days
6.6
6.6

Hello! As per your project post, you’re looking to build an AI Based Document Processing and Data Extraction System that can classify documents, extract structured data, validate it against external datasets, and continuously improve through a configurable feedback loop. The goal is to create a modular and scalable AI driven platform that automates document interpretation, reduces manual effort, and integrates seamlessly with external ERP and data systems. My focus will be on delivering a configurable AI document processing solution, featuring: document import from folders and APIs, AI based document classification and intelligent data extraction, validation and matching against external datasets and product catalogs, configurable rule engine without hardcoding, handling partial matches and inconsistencies, feedback loop for correction and learning improvement, modular architecture. I specialize in AI driven automation platforms, document processing systems, API integrations, and scalable backend architectures with focus on modular design, data validation logic, and performance optimization. My focus will be on building a flexible and reliable document intelligence system that adapts to different document types and integrates smoothly with your existing infrastructure. Let’s connect to review your document types, external data sources, and deployment preferences so we can finalize the system architecture and development roadmap. Best regards, Nikita Gupta.
€1,500 EUR in 45 days
6.5
6.5

Hello, I am ready to develop your AI-based document processing system that imports documents, classifies them using AI, extracts data, and validates it against your external datasets. The system will be configurable with modular architecture and APIs for smooth integration with your ERP and other systems. It will also support feedback loops for continuous learning and improvement.
€1,500 EUR in 7 days
6.5
6.5

I'm Iosif Peterfi, 15+ years helping organizations turn complex tech into clear business value. This is my speciality: turning unstructured documents into structured, trusted data by combining AI understanding with validation against external datasets. You need to import documents from folders or APIs, classify them by type, extract data with AI, and validate it against external sources such as product catalogs or structured datasets. You also want to handle partial matches, inconsistencies, or missing data, plus a feedback loop to improve future results, all within a modular system that exposes API integrations, a basic configuration interface, and solid logging for traceability. This is the right focus for reducing manual review, accelerating processing, and increasing data quality across document streams. My approach delivers an MVP with clear business outcomes: a modular ingestion layer, AI-driven classification and extraction, a configurable validation and matching engine, and a feedback loop that learns from corrections. You'll get API you can connect to ERP or other systems, a simple interface for rule setup and verification, plus robust logging and error handling to support reliable operations. The result is faster document processing, fewer manual reconciliations, and a foundation you can extend for richer AI capabilities over time.
€2,100 EUR in 14 days
6.7
6.7

Hi, 1. I have done a project which extracted product database and help sales team to create proposal. This was done by extracting product manual and LLM. This is similar to your project. 2. I am a preferred freelancer with 20+ years of industrial experience and now working as full time freelancer. 3. I can do solution architecture design and full stack development. I have already done this for several projects. I request you to visit my portfolio. 4. I have 5 star rating from all of my customers and I deliver top notch quality which is production ready. Let's connect at your first suitable time. Regards, Vishal
€2,550 EUR in 15 days
6.4
6.4

Hi, My team and I just reviewed your project, and it seems like the modular architecture combined with scalable AI is key here. Our backend Architect is well-versed in designing systems that can efficiently scale to handle complex data extraction and validation tasks. We understand the importance of a robust feedback loop for enhancing AI accuracy over time. We previously delivered a large-scale document processing system that involved Python, Docker, and REST APIs, achieving over a 95% data accuracy rate. The project’s success was anchored in our ability to integrate advanced AI models while maintaining seamless API-based communications. I'll be your direct technical point of contact, ensuring we set up a staging environment for real-time testing and validation. This approach guarantees transparency and immediate feedback throughout the development. Could you expand on your long-term vision for integrating AI into your business processes? Let's explore how we can bring your MVP to life.
€1,500 EUR in 20 days
5.6
5.6

Building a configurable AI-based document processing system is a well-scoped engineering challenge. Here's how we'd architect it. For document ingestion, we'd support both folder-based import and API-triggered imports (webhooks or polling). Classification would be handled using a fine-tuned model (OpenAI or Hugging Face) trained on document types you define—no rigid templates needed. For data extraction and validation: we'd use a combination of LLM-based extraction (for unstructured fields) and rule-based parsing (for structured data), then validate extracted values against your external datasets via configurable matching logic. The system would handle partial matches, fuzzy matching, and flag inconsistencies for human review rather than failing silently. The configuration layer would expose a UI where you define document types, extraction fields, validation rules, and matching thresholds—no hardcoding required. Stack: Python backend (FastAPI), PostgreSQL for job tracking and results, an LLM integration layer (OpenAI API or self-hosted), and a lightweight React dashboard for monitoring and configuration. At Webneco, we carry a 4.9-star rating from 118 clients with 97% on-budget delivery. We've integrated LLM APIs and built document processing pipelines for clients. Question: what are the external datasets you need to validate against—are they static reference tables, live APIs, or something else?
€2,250 EUR in 7 days
5.8
5.8

Hi, I can help you with this. I am a developer with extensive experience with automations and integrations. I've helped clients with similar projects. Let me know your interest, Sincerely, Nicolas
€2,250 EUR in 7 days
5.3
5.3

Hi there, your project for an AI-driven document processing system presents fascinating challenges, particularly in AI-based classification and validation against external datasets. Ensuring a flexible framework that can handle partial data matches and inconsistencies is critical, and my approach guarantees efficiency in these areas by leveraging Python-based AI tools. I've successfully delivered a similar project where I achieved a 95% accuracy rate in document data validation. I include 30 days of post-deployment bug-fixing to ensure smooth system operation. How will you manage the system's feedback loop to incorporate corrections and improve accuracy over time? Let's discuss the technical specifics.
€1,800 EUR in 14 days
4.9
4.9

Hi there, I will build the MVP of your AI document processing system in Python — PDF and image ingestion from folders or APIs, AI-based document classification, intelligent data extraction using LLMs, configurable validation and matching logic against your external datasets (product catalogs, structured sources) with partial match and inconsistency handling, a correction feedback loop, REST API integration layer, a basic configuration and validation interface, and Docker-based deployment on Linux. Full logging and error traceability included. For the feedback loop, I will store every human correction as a structured example in a vector database and inject the most relevant past corrections into the LLM prompt at extraction time using RAG — this gives you measurable accuracy improvement over time without needing to fine-tune a model, and corrections take effect immediately rather than waiting for a retraining cycle. Questions: 1) What document types will the system process initially — invoices, purchase orders, delivery notes, or others? 2) Which external datasets will be used for validation, and are they accessible via API or as flat files? 3) Do you have a target accuracy threshold for the MVP extraction? Looking forward to your response. Best regards, Faizan
€2,250 EUR in 7 days
5.3
5.3

Hi, Hope ypu are doing well ! I have delivered very similar project, with accuracy 95-100% with Dynamic rules to manage output. I have delivered PDF to S1000D XML Conversion against given schema, workflow, that can be corrected, managed at runtime by user, by adding schema, rules. Drop me a message and lets have a demonstration and understand, your actual desired outputs. With Regards Maroof K.
€2,000 EUR in 12 days
5.0
5.0

Hello, I’m excited about your vision for an AI driven document processing system and would love to help bring it to life. I have solid experience building Python based AI solutions that combine document understanding, intelligent extraction, and validation against structured data. I would design a modular system using LLM powered classification and extraction, flexible rule based validation, and a feedback loop to continuously improve accuracy. The solution will include clean APIs, Docker deployment, and a simple interface for configuration and human validation. My focus is to deliver a scalable MVP that is reliable, adaptable, and ready for future expansion.
€1,500 EUR in 7 days
4.6
4.6

Hi, I reviewed your requirement, and this is a true AI-driven document processing system — not just OCR, but classification, validation, and continuous learning. I have experience building data-processing systems with APIs and AI integration, so I can help you design a modular and scalable MVP. I can help you with: * Document ingestion (PDF/images via API or folders) * AI-based classification and data extraction (OCR + LLM support) * Validation engine with configurable rules (no hardcoding) * Matching logic for partial/inconsistent data * Human-in-the-loop interface for corrections * Feedback loop to improve accuracy over time * REST APIs for ERP/external integrations * Docker-based deployment on Linux Recommended approach: Use Python with OCR (Tesseract/DocAI) + LLM layer for interpretation, combined with a rule-based validation engine and modular services. Estimated timeline: 6–8 weeks for MVP Quick question: Do you already have sample documents and external datasets for training/validation? I can help you build a flexible system that evolves with your data. Best regards, Himanshu
€2,750 EUR in 45 days
4.5
4.5

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I recently developed an AI-driven document processing system that imported varied document types, classified them automatically, and extracted data accurately using AI models in Python, streamlining validation with external datasets seamlessly. From my experience, the critical factor for success is designing a flexible, modular system with configurable rules that supports continual learning from user feedback. ⭕ Here’s my approach: - Develop a modular architecture using Python and Docker for scalable deployment - Implement AI-based document classification and data extraction leveraging open-source AI tools - Build RESTful APIs for seamless integration with external systems like ERP - Design a human-in-the-loop interface for data validation and corrections - Incorporate logging and error handling for traceability and robustness - Create a feedback loop mechanism enabling continuous system improvements ❓ Could you clarify the expected volume of documents processed daily? I am confident my expertise in AI-powered document processing and system integration will deliver a robust MVP that meets your current needs and scales efficiently into a full-fledged solution. Looking forward to collaborating with you. Best regards, Nam
€2,500 EUR in 15 days
3.9
3.9

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