TFI Group AI Platform

Architected and developed a comprehensive enterprise AI platform for TFI Group, a leading tax consultancy specializing in Housing Development, Land Remediation Relief, R&D tax credits, and Capital Allowances in the UK. The platform demonstrates up-to-date AI application development with multiple sophisticated AI systems working in coordination. Built Tina AI Assistant - an advanced conversational AI with multi-model support, featuring intelligent file referencing using @filename syntax, real-time web search integration, and dual-scope vector stores for personal and organizational knowledge. Implemented streaming responses, conversation persistence, and context-aware personalization. Developed a beta Dan AI Consultation System - a specialized voice-enabled virtual tax consultant with real-time speech-to-text/text-to-speech capabilities, domain-specific persona optimization, and structured consultation workflows mimicking professional tax advisory sessions. Created sophisticated document processing pipelines with multi-stage AI analysis workflows including Python-based PDF extraction, Deepgram audio/video transcription with speaker diarization, intelligent content chunking, parallel AI processing across multiple models, reference validation with fact-checking, and automated report generation with Excel output. Implemented advanced schema management framework for dynamic AI behavior configuration, including customizable question sets, LLM parameter control, writing style rules, version control with rollback capabilities, and training example management for consistent AI outputs. The platform showcases enterprise-grade features including MFA with TOTP-based 2FA, domain-restricted authentication, role-based access control, hierarchical file organization with vector search, cost optimization with token usage tracking, and production-ready error handling with fallback strategies.