Victor Hugo Juan

VJ

Open to opportunities

Victor Hugo Juan

@victorhugojuan

I build Python backend and applied AI systems for real-time communication, lead capture, and reliable integrations.

What I'm looking for

I'm looking to build production-oriented backend and applied AI systems, especially real-time products using LLMs, RAG, reliable asynchronous workflows, and strong observability.

I've built backend services for QuintoAndar Group's TokkoBroker, supporting Tokko Chat, a WhatsApp communication platform for real estate agencies to centralize conversations and manage leads.

I migrated chat flows to asynchronous processing with Celery, Redis, and RabbitMQ; implemented WebSocket device-linking and status flows; and integrated multiple WhatsApp providers through decoupled abstractions. I also contributed to Tokki, the internal LLM gateway, using LangChain and LangSmith for orchestration, tracing, tool-based workflows, and evaluation.

I'm currently building a multi-tenant AI lead-capture SaaS with Django, DRF, FastAPI, RAG, pgvector, structured LLM outputs, prompt versioning, and usage observability.

Earlier, I delivered backend systems for financial accounts, mobile entertainment and telecom integrations, traffic-light monitoring, and VoIP and legacy-network tooling. I bring 5+ years of Python experience across API design, asynchronous workflows, testing, observability, and real-time systems.

Experience

Work history, roles, and key accomplishments

QT

Python Developer

QuintoAndar Group / TokkoBroker

Dec 2022 - May 2026 (3 years 5 months)

Served as a backend reference for Tokko Chat, a WhatsApp communication platform for real estate agencies. Integrated multiple WhatsApp providers, migrated chat flows to asynchronous processing, and contributed to the internal LLM gateway.

Python Django Django REST Framework Celery Redis RabbitMQ WebSockets Langsmith Pytest Prometheus Grafana Sentry Kibana

Education

Degrees, certifications, and relevant coursework

UA

Universidad Tecnológica Nacional - Facultad Regional Buenos Aires

Electronic Engineering, Electronic Engineering

Completed advanced coursework in Electronic Engineering.

UF

Universidad Nacional de Tres de Febrero

Sound Engineering, Sound Engineering

Pursued Sound Engineering studies, which were not completed.

Tech stack

Software and tools used professionally

MySQL

PostgreSQL

Django

Redis

JavaScript

RabbitMQ

MQTT

Django REST framework

FastAPI

Grafana

Kibana

Prometheus

SQLAlchemy

WhatsApp

Hugo

pytest

LangChain

Pydantic

pgvector

LangSmith

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