Felipe Marques
Software Engineer
Overview
Mid-Level Full-Stack Developer @Keeper
Social Links
About
I'm a full-stack developer. I work across backend, frontend, mobile and the infrastructure that runs it.
At MindGroup I architected and shipped 3 production systems that run legal and financial operations for client businesses. I took a critical query from 5s to 240ms and cut 40+ hours of manual work every month. I co-founded FazzLeads, a platform for real estate agencies that now serves 6 paying clients and hundreds of leads a month. I'm at Keeper today, a fintech for graduation fundraising.
Outside of work I build distributed systems and developer tools, including DemoCraft.
Stack
Experience
Keeper
- Location
- São Paulo, SP, Brazil
- Location type
- (Hybrid)
MindGroup Consulting e Marketing
- Location
- Sorocaba, SP, Brazil
- Location type
- (Hybrid)
FazzLeads
- Location
- Remote
- Location type
- (Remote)
Education
SENAI Sorocaba
- Period
- Jan 2025 — Present
Associate Degree, Systems Analysis and Development
Data Science, Data Analysis, Java, Algorithms, Machine Learning, Software Engineering, Networks
SENAI Sorocaba
- Period
- Jan 2023 — Dec 2024
Technical Degree, Systems Development
MySQL Database, Networks, TypeScript, Java, OOP, Algorithms
Certifications(1)
DeepLearning.AI
Jan 2026Supervised Machine Learning: Regression and Classification
Credential: L2MYYHXMHCPD
Linear, Multiple & Polynomial Regression, Gradient Descent, Regularization (L1/L2), Logistic Classification, Neural Networks, Practical ML Development
Projects(4)
Portfolio Agent
A durable, bilingual AI agent embedded in this portfolio to answer questions about my career, projects, and technical decisions.
Built with Vercel Eve, OpenRouter, and a local multilingual Whisper pipeline running through Transformers.js in a Web Worker.
Canonical facts · transparent knowledge gaps · local speech-to-text
- Eve
- OpenRouter
- Transformers.js
- Next.js
DemoCraft
An open-source toolkit for creating polished and reproducible product demos from real application workflows.
Demo flows are defined in TypeScript, executed in a real browser with Playwright, and rendered deterministically with Remotion.
- TypeScript
- Playwright
- Remotion
- React
Real-Time Crash Game
A real-time multiplayer crash game designed to keep rounds, balances, and payments consistent across distributed services.
Built with event-driven microservices, Saga orchestration, Inbox/Outbox patterns, WebSockets, observability, and more than 330 automated tests.
330+ automated tests
- NestJS
- RabbitMQ
- PostgreSQL
- WebSockets
PayFlow
A financial transfer system built with three Go microservices that communicate exclusively through asynchronous messaging.
Uses choreographed Saga orchestration, DDD boundaries, idempotent operations, and OpenTelemetry tracing to ensure financial consistency across distributed services.
- Go
- PostgreSQL
- RabbitMQ
- Docker
Reading(5)
- The Two Reacts
Dan Abramov · overreacted.io
A melhor explicação de server vs client components que eu li.
- MVCC, explicado sem drama
PostgreSQL Docs · postgresql.org
- Patterns of Distributed Systems
Unmesh Joshi · martinfowler.com