About Me

Backend Software Engineer focused on applied AI, software architecture, internal systems, automation, and data. I build platforms with Python, FastAPI, Node.js, TypeScript, SQL, and cloud infrastructure to turn real operations into reliable, observable, and evolvable software.

My work combines multi-agent RAG platforms, AI assistants, product backends, automation, data pipelines, and internal systems. I design AI solutions as part of the software itself: with retrievable context, controlled tools, memory, fallback behavior, permissions, logs, and traceability.

I also work with backend architecture, queues, caching, tests, CI/CD, observability, data security, and integrations when they belong to a larger system. The goal is to reduce manual work, clarify operational flows, and keep systems easy to evolve in real usage.

Patrick Araujo profile avatar for backend software engineer and integration specialist

Professional Experience & Enterprise Environments

Loja do Sapo
Icaiu
WR
Federico Nacucchio y Asociados
Loja do Sapo
Icaiu
WR
Federico Nacucchio y Asociados
Loja do Sapo
Icaiu
WR
Federico Nacucchio y Asociados

Freelance & Contract Work

1 LATAM contract
Loja do Sapo

Loja do Sapo

Backend platforms, applied AI, automations, integrations, dashboards, and operational systems.

2 consolidated roles
iCaiu

iCaiu

Systems integration, data pipelines, cloud, BI, backend automation, and solution architecture.

1 current role
WR Auto Pecas

WR Auto Peças

Technical operations, process automation, inventory control, internal tooling, and systems support.

1 role

Engineering Operating Model

System boundaries
Clear contracts between UI, backend, agents, workers, and storage
I keep each responsibility in its own layer so business rules, models, tools, data, and integrations can evolve without invisible coupling.
Replayable execution
Inputs, states, traces, normalized models, and audit trails
AI, automation, and data workflows need to be rerunnable: failures should be inspectable, correctable, and replayable without losing original context.
Operational Feedback
Signals before surprises
Dashboards, logs, real-time events, scheduled checks, and failure summaries help expose drift before it turns into hidden risk.
AI-Assisted Delivery
Agent speed with engineering review
I use AI agents to accelerate exploration, scaffolding, and validation while keeping architecture, security, and production behavior under human review.

Languages, Technologies & Stack

Languages & Core Stack Python JS JavaScript TypeScript FastAPI AWS Deluge HTML5 CSS3 Docker SQL
Academic & Certification Exposure Java PHP React C C++ C#
Data & Cloud PostgreSQL Supabase Google Cloud Cloudflare Workers ETL Pipelines Data Modeling
Integrations REST APIs GitHub Actions Zoho Systems Integration Process Automation
Architecture Backend Architecture Applied AI RAG LLM Integrations Async Processing Caching System Design Operational Dashboards Rules Engines Integration Governance
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Contact & Professional Inquiries

PkLavc
pklavc

Backend Software Engineer focused on applied AI, software architecture, automation, backend systems, Python, Node.js, SQL, ETL pipelines, reliability, and scalable operational platforms.