I design and build software systems that connect product strategy, reliable engineering, and day-to-day operations.
I have more than six years of professional experience across full-stack development, systems integration, applied AI, data architecture, payments, automation, and Web3.
I currently lead technology architecture, product strategy, and engineering quality as CTPO and Co-Founder of InzaiQ.
- Systems architecture: modular design, domain boundaries, REST APIs, workers, event-driven integrations, and transactional workflows.
- Full-stack engineering: TypeScript, JavaScript, Python, PHP, React, Vue, Node.js, Django, Flask, and Laravel.
- Applied AI: LLM integration, structured outputs, model evaluation, confidence thresholds, fallbacks, and human review for high-impact decisions.
- Data and transactions: SQL and NoSQL, ingestion, validation, idempotency, reconciliation, provenance, evidence hashes, and reproducible processing.
- Platform and operations: Linux, Docker, Nginx, CI/CD, observability, access controls, backups, and cloud/VPS deployments.
- Web3 and payments: EVM/Polygon, wallets, on-chain and off-chain reconciliation, Stripe, and transaction-state management.
I turn complex functional models into implementable systems by defining domains, contracts, ownership, risks, and acceptance criteria before scaling.
My engineering decisions are evidence-driven. Critical paths should be observable, testable, reproducible, and auditable through structured logs, metrics, traces, versioned rules, automated quality gates, and explicit decision records.
I prefer simple modular architectures over premature microservices. Physical separation should be justified by throughput, security, fault isolation, or clear operational ownership.
A deterministic time-budget controller and MCP server for AI agents.
- Built in Rust with MCP over stdio and JSON-RPC.
- Includes a policy engine, lifecycle management, thread-safe task control, monotonic timing, atomic persistence, tests, and reproducible quality gates.
AI-powered WhatsApp automation 路 InzaiQ
Conversational automation platform integrating AI, operational rules, APIs, CRM workflows, and managed services.
- Role: CTPO, systems architecture, full-stack engineering, and AI integration.
- Focus: reliable conversation flows, operational controls, integrations, deployment, and observability.
SaaS product for AI-assisted Amazon content workflows.
- Designed the product architecture, model abstraction, generation pipeline, result evaluation, billing integration, and operational workflow.
REST API for Gmail authentication, integration, and notification processing using Django REST Framework.
Languages
TypeScript 路 JavaScript 路 Python 路 Rust 路 PHP 路 SQL
Frontend
React 路 Vue.js 路 SCSS 路 Bootstrap 路 Progressive Web Apps
Backend and data
Node.js 路 Express 路 Django 路 Flask 路 Laravel 路 REST APIs 路 PostgreSQL 路 MySQL 路 MongoDB 路 Redis
Infrastructure and delivery
Linux 路 Docker 路 Docker Compose 路 Nginx 路 GitHub Actions 路 CI/CD 路 VPS and cloud deployments 路 Monitoring 路 Backups
Specialized areas
LLM applications 路 MCP 路 Stripe 路 EVM/Polygon 路 Wallet integrations 路 Transaction reconciliation 路 Data provenance
My work combines architecture with direct implementation. I have led technical decisions, roadmap prioritization, code review, QA, deployment, documentation, incident analysis, and coordination with specialists in lean startup environments.
For areas such as advanced AI research, regulated financial technology, smart-contract security, and cybersecurity, I define interfaces and acceptance criteria, involve the right specialists, and integrate the result into the wider system.
- Email: juanjesuscubells@inzaiq.com
- LinkedIn: Juan Jes煤s Cubells G贸mez
- Company: InzaiQ