Raja K.
Fintech CTO & AI Engineer | Payments | Fraud ML | RAG
20+ years in fintech and banking and the last 5 deep in production AI. From Oracle and IBM enterprise systems to hands-on CTO and Lead Engineer of a live EU payments platform, to production AI in regulated environments. I don't build demos. I build systems that run under load, with real financial consequences. Recent production builds: ā RAG platform processing 1M documents (ColPali + BGE) - 5 enterprise deals ā Fraud detection ML for KSA fintech - 70% loss reduction, 100k txns/month ā Fine-tuned LLM Knowledge Assistant - deployed to 5 enterprises Fintech AI: fraud detection Ā· KYC/AML Ā· credit scoring Ā· open banking Ā· PSD2 Ā· Stripe/Plaid AI systems: RAG pipelines Ā· LLM agents Ā· HITL workflows Ā· computer vision (YOLO, VLMs) Stack: Python Ā· PyTorch Ā· LangChain/LangGraph Ā· FastAPI Ā· React/Next.js Ā· CISSP certified Available for production AI and fintech engagements. EU-based, immediate start.