Senior Software Engineer

AI Engineering · Full Stack · Cloud

Building production-ready AI systems.

I’m Xolani Masuku, a software engineer with 10+ years of experience across frontend, backend and cloud. Now I’m focused on AI applications, retrieval and agents built for real use.

Field note / 001Applied AI
System outline01—04
Question→Retrieve
& reason
→Checked
answer
Evidence inHuman in the loop
Currently exploring reliable AI workflows

Tools I work with

PythonFastAPIReactNext.jsLLMsRAGLangGraphPostgreSQLAWSDocker

Selected work / in progress

Projects with a point of view.

Small, focused systems that show how I think about building AI features for the real world.

01 / 04 In progress

Claims · Agents · RAG

Insurance AI Platform

An AI-assisted claims workflow that grounds recommendations in policy documents and leaves consequential decisions with people.

PythonFastAPILangGraphPostgreSQL
Project overview
02 / 04 In progress

Retrieval · Search · Citations

Production RAG

A document question-answering service built around traceable retrieval, useful citations and measurable answer quality.

PythonFastAPIpgvectorRedis
Project overview
03 / 04 In progress

Orchestration · Tools · MCP

Agent Workflows

A workflow lab for routing work across focused agents, typed tools and explicit human approval steps.

PythonLangGraphMCPFastAPI
Project overview
04 / 04 In progress

Quality · Regression · Observability

AI Evaluation Framework

A practical test harness for retrieval, citations, structured outputs and tool selection across changing prompts and models.

PythonpytestOpenTelemetryLLM APIs
Project overview

Current focus

Make the clever part dependable.

Building reliable AI applications means bringing together language models, structured outputs, retrieval, agents, evaluation, security and cloud infrastructure.

LLM applicationsRAGAI agentsMCPEvaluationAI security

Engineering toolkit

Depth across the stack.

AI engineering

LLMs · RAG · agents · LangGraph · MCP · evaluation

Application engineering

Python · FastAPI · TypeScript · React · Next.js

Data & infrastructure

PostgreSQL · pgvector · Redis · AWS · Docker

A foundation in software

Experience before the hype.

More than a decade building and maintaining software across frontend, backend and cloud. Now applying that engineering discipline to AI systems that people can understand, trust and operate.

10+years building

Notes from the work

Latest articles.

All articles
01 / NOTES

The first field notes are taking shape alongside the projects. Check back soon.

Open to good conversations

Have a problem worth solving?

Get in touch