LLM & agentic AI
LangGraph, LangChain, hand-rolled agent/job orchestration, RAG, MCP, AWS Bedrock (Guardrails), Groq, NVIDIA NIM, Ollama, prompt engineering and injection defence
Eval, optimisation & fine-tuning
RAGAS (faithfulness, context precision/recall), custom cost/latency/cache-hit metrics, LoRA/QLoRA/PEFT, quantisation, semantic caching, tiered model routing
Retrieval & multimodal
Qdrant, Supabase pgvector, hybrid search and reranking, Tesseract OCR, vision-LLM screenshot queries
ML & backend
XGBoost, PyTorch, Transformers, SHAP, Python, FastAPI, PostgreSQL, Redis, Docker, Kafka, Airflow
Data & cloud
SQL, PySpark, Power BI, AWS (Lambda, EKS/ECS, S3, Step Functions, SES, SQS, SNS)