Open to opportunities

Ernest User

@ernestuser5

Message

I build deployable AI applications using RAG, agentic workflows, LLM APIs, and Python backends.

Zambia

Message

What I'm looking for

I'm looking to build production AI applications involving LLMs, RAG, agentic workflows, backend systems, APIs, databases, and cloud deployment.

I build end-to-end AI applications that turn LLM capabilities into reliable, deployable software systems. My work combines RAG, agentic workflows, Python backends, APIs, databases, and web interfaces.

I built Marketing Agent, an agentic AI marketing platform with planning, content generation, human approval stages, workflow controls, frontend interfaces, data storage, and application APIs.

I also developed a multi-platform Caption Generator and a Reflection Agent with iterative self-evaluation, configurable execution loops, prompt optimization, and rate-limit troubleshooting.

Across my projects, I use FastAPI, LangGraph, LangChain, PostgreSQL, Redis, ChromaDB, Docker, JavaScript, and React to design, test, debug, and deploy AI systems.

Experience

Work history, roles, and key accomplishments

Current

Independent AI & Software Engineer

Current

Self Employed

Jan 2024 - Present (2 years 8 months)

Design, develop, test, and deploy end-to-end AI applications from system architecture through production deployment. Build Python-based AI backends and REST APIs using FastAPI, integrate LLM APIs, and design RAG pipelines and agentic workflows.

Python fastAPI REST APIs LLM APIs RAG LangGraph Lang Chain PostgreSQL SQLite Redis ChromaDB Docker cloud deployment JavaScript React

Education

Degrees, certifications, and relevant coursework

Self-Directed AI & Software Engineering Development

Professional Development, AI & Software Engineering

2024 -

Focused on practical AI engineering, LLM applications, RAG, agentic systems, backend engineering, APIs, databases, cloud deployment, machine learning, and production application development.