Open to opportunities

Vitor Moreira User

@vitormoreirauser

Message

I build backend systems and LLM-integrated SaaS products with Python, Django, FastAPI, MCP, and RAG.

Brazil

Message

What I'm looking for

I'm looking to build backend and AI-powered products end-to-end, working on production systems, scalable data workflows, APIs, and LLM integrations where I can continue growing as a software engineer.

At Salesrun, I build production features for a multi-tenant B2B retail intelligence SaaS serving 15+ client companies. I led the migration from 12+ fragmented n8n workflows to a centralized Python MCP server, reducing conversational AI response latency from 7 seconds to 3 seconds.

I work across Django, DRF, FastAPI, data modeling, APIs, and production rollout, and optimized 500k+ record sales-data imports by 55%. I’ve also built AI products using RAG, pgvector, embeddings, and guardrails, and deployed Django infrastructure with Docker, Nginx, Celery, Redis, PostgreSQL, and Linux.

Experience

Work history, roles, and key accomplishments

Current

Junior Software Engineer

Current

Salesrun

Oct 2025 - Present (10 months)

Architected and led the migration of a conversational AI service from fragmented n8n workflows to a centralized Python-based MCP server, cutting response latency from 7s to 3s. Delivered end-to-end features for a multi-tenant B2B platform, optimized bulk data imports, and implemented security audit logging on GCP.

Python Django DRF fastAPI MCP RAG Pandas BigQuery Google Cloud Platform AI Agents

Software Engineering Intern

Salesrun

Dec 2024 - Oct 2025 (10 months)

Shipped production features and bug fixes across the full development lifecycle of a Django platform, participating in code reviews and automated testing. Promoted to Junior Software Engineer within 10 months.

Django Python Code Review Testing

Software Engineering Intern

Techno Software

Jun 2024 - Dec 2024 (6 months)

Developed and maintained REST APIs with Java, Spring Boot, and SQL Server for a client-facing credit recovery platform, delivering new endpoints and improving third-party integrations.

Java Spring Boot SQL Server REST APIs

Teaching Assistant, Introduction to Programming

Universidade de Ribeirão Preto

Feb 2024 - Jun 2024 (4 months)

Mentored 10+ students across two programming classes on C, pointers, data structures, and control flow, supporting practical exercises and group projects.

C Data Structures Mentor