Patrick Hayden

Applied AI Engineer

Built and deployed production-grade LLM applications, RAG systems, and AI agents using Python, LangChain, LangGraph, and vector databases. Designed scalable AI services and implemented evaluation frameworks, guardrails, and monitoring to improve reliability.

PythonLang ChainLangGraphVector DatabasesRAGAI AgentsfastAPIPostgreSQLRedisDockerCI CDLLM EvaluationGuardRailsMonitoring

Machine Learning Engineer

Bloomberg

Built and deployed an end-to-end automated ML pipeline supporting Bloomberg's core Search product. Re-engineered a complex 15-step manual ML process into a one-click automated workflow, improving efficiency and reproducibility.

Machine LearningAirflowPythonData PipelinesModel TrainingModel EvaluationMonitoringSearchRanking

Artificial Intelligence Developer

Contributed to the development of AI-powered applications and LLM features using Python, OpenAI APIs, LangChain, and FastAPI. Built and tested RAG pipelines and integrated AI capabilities with REST APIs and databases.

PythonOpenAI APILang ChainfastAPIRAGVector DatabasesSemantic SearchPrompt EngineeringLLM Evaluation

Junior Software Developer

Developed and maintained web applications and REST APIs using JavaScript, React, Node.js, and Python. Built new features, resolved bugs, and improved performance and reliability.

JavaScriptReactNodeJSPythonREST APIsSQLGitAgile Development