Looking for a job

Juangonzalo Leon Zanelli

@juangonzaloleonzanel

Systems builder at JLZ Consulting and Rumba Guaguau who shipped a live Florida e-commerce with Stripe payments in 14 days.

Peru

Message

What I'm looking for

I'm looking for async-first work with written communication and EST compatibility, building and delivering web, CRM, and automation systems for small businesses.

At JLZ Consulting, I delivered a live e-commerce storefront for an electric motorcycle importer in Florida in 14 days. I integrated Stripe Checkout, Stripe Tax, webhooks, and Klarna, with inventory reservations reconciled against Stripe to prevent the same unit from being sold twice.

At Rumba Guaguau, I built and deployed Rumba OS, combining a public e-commerce storefront with a 10-module internal CRM. Its self-serve ordering flow cut order-coordination time by about 70%, and scheduled automations support customer retention.

At Impactan, I built an ERP in FastAPI and SQLAlchemy with per-user permissions, sales pipeline, and billing modules. I also coordinated technical documentation for infrastructure projects at Zanelli Consultores, with zero missed regulatory deadlines.

Experience

Work history, roles, and key accomplishments

Current

Freelance Systems Builder

Current

JLZ Consulting

Aug 2026 - Present (3 months)

Designed and delivered web, CRM, and automation projects for small businesses. Built a live e-commerce for a US client in 14 days, integrating Stripe payments and inventory reservations.

Stripe Webhooks Ecommerce Unit Testing End To End Testing JavaScript NodeJS

Current

Co-Founder

Current

Impactan

Jan 2025 - Present (1 year 10 months)

Co-founded a software brand building an ERP, CRM, and bots system. Built the ERP in FastAPI and SQLAlchemy with per-user permissions, sales pipeline, and billing modules.

fastAPI SQLAlchemy ERP CRM Bots Python Testing

Current

Founder & Product Builder

Current

Rumba Guaguau

Jan 2021 - Present (5 years 10 months)

Built and deployed Rumba OS, a public e-commerce storefront and internal CRM, cutting order-coordination time by ~70%. Automated retention with serverless jobs and managed annual revenue through a payment-confirmation flow.