// Software Architect & Product Builder · AI (RAG · MCP · Agents) · AI-Assisted Development

OSCAR DIAZ
>_ full-stack.

Full-Stack Developer and Software Architect with 10+ years leading digital transformation. I build scalable web and mobile applications end-to-end — from UI/UX to robust backend orchestration. Expert in React, Next.js, Node.js, Python and Flutter, with a strong focus on AI-assisted development (RAG, MCP, Agents) to optimize workflows. I bridge complex technical architecture with user-centered product goals.

~/oscar-diaz — zsh
oscar@portfolio:~$ whoami
senior_full_stack · 10y+ · AI-assisted
oscar@portfolio:~$ stack --top
react · node.js · flutter · mysql · aws · llm-apis
oscar@portfolio:~$ status
● available_for_hire
Oscar Diaz

// AI-Assisted Development · Agents · Automation

I help companies automate processes, products and operations with AI agents, workflows and RAG. I work daily with agents like Claude Code, Cursor and OpenClaw to ship faster and orchestrate tasks end-to-end.

Custom AI Agents

Design and delivery of autonomous agents for support, sales, operations and engineering. Integrated with APIs, tools and databases.

Workflows + Automation

Process orchestration with LLMs, n8n, Zapier and custom Node/Python pipelines. From ticket to resolution with no human in the loop.

RAG over your knowledge

Retrieval-Augmented Generation systems with embeddings, vector DBs (pgvector, Pinecone) and strict context control to answer from your own documents.

AI-Assisted Engineering

Accelerated delivery with Claude Code, Cursor, GitHub Copilot and OpenClaw. I ship 3–5x faster while keeping quality and architecture.

stack Claude CodeCursorOpenClawGitHub CopilotOpenAI APIAnthropic APILangChainn8npgvectorPineconeRAGNode.jsPython

// Entities I've worked with

UNICEFColombian Air ForceNational PoliceNavyArmyCAFAMDIPOLSIMAPLos Patios MunicipalitySociedad SalesianaPublic Health Dept.UNICEFColombian Air ForceNational PoliceNavyArmyCAFAMDIPOLSIMAPLos Patios MunicipalitySociedad SalesianaPublic Health Dept.

// Companies & brands

CISCOGoProFEMSA (OXXO)YanbalRedebanAndrés Carne de ResKokorikoBICA BeautyBeClevermanIridian ConsultingEnovateVumiRifeoSinte SolucionesSoousePagos InteligentesCISCOGoProFEMSA (OXXO)YanbalRedebanAndrés Carne de ResKokorikoBICA BeautyBeClevermanIridian ConsultingEnovateVumiRifeoSinte SolucionesSoousePagos Inteligentes

// Architecture & stack

ReactNext.jsAngularNode.jsExpressTypeScriptPHPPythonGo.NETFlutterSwiftKotlinMySQLPostgreSQLMongoDBRedispgvectorAWSGCPDockerCI/CDClaude CodeCursorOpenClawGitHub CopilotLangChainRAGn8nReactNext.jsAngularNode.jsExpressTypeScriptPHPPythonGo.NETFlutterSwiftKotlinMySQLPostgreSQLMongoDBRedispgvectorAWSGCPDockerCI/CDClaude CodeCursorOpenClawGitHub CopilotLangChainRAGn8n

Need a custom web build with AI-assisted development?

Let’s work together to ship your product faster with solid architecture and AI agents.

✉ Hire me

// Let’s talk