Senior Backend Engineer | Python, FastAPI, Event-Driven Systems, GCP & AI-Assisted Development at Luizalabs (2026-01 – Present)
- Designed and maintained backend services for large-scale marketplace and financial systems, contributing to the evolution of distributed backend architectures and event-driven workflows.
- Developed and maintained event-driven workflows to process business-critical events across marketplace and financial operations.
- Worked with message-driven systems involving Apache Kafka, Google Pub/Sub, and RabbitMQ, supporting asynchronous processing and service integrations.
- Built and maintained cloud-native backend applications on Google Cloud Platform (GCP), working with deployment workflows involving ArgoCD and Kubernetes-based infrastructure.
- Used AI-assisted development workflows with Claude AI, Cursor, OpenSpec, and agent-based practices to support technical planning, specification-driven development, implementation, and delivery quality.
Backend Engineer | Python, Django, FastAPI | AWS & Microservices at Inspand (2025-01 – 2026-01)
- Led backend architecture, scalability, and evolution of the company's core platform, serving 100–10,000 users across enterprise clients in Brazil.
- Resolved a critical production incident affecting inter-service communication, restoring system availability in under 2 hours by redesigning authentication flows with OAuth2 and JWT.
- Improved performance of high-traffic reporting APIs by optimizing MongoDB and PostgreSQL queries, applying indexing, caching strategies, and reducing payload size.
- Designed secure service-to-service authentication across REST microservices, improving reliability and context-aware communication between internal systems.
- Proposed an architectural migration from Django to FastAPI for high-throughput reporting services focused on scalability and response-time improvements.
- Developed asynchronous processing pipelines with Celery and monitored production environments using AWS CloudWatch and ECS.
Backend Engineer | Python, Django, FastAPI, GCP & API Integrations at Movva (2022-05 – 2025-01)
Promoted from Full Stack Developer to Backend Engineer, taking ownership of backend architecture, integrations, scalability, and system reliability.
- Redesigned the notification system using the Abstract Factory pattern in Python, reducing development and testing time for new notification types from 2 hours to 20 minutes — an 83% improvement.
- Resolved critical security vulnerabilities involving application logs and file data exposure, reducing recurring production incidents from 30 to 4 per month.
- Led third-party communication integrations with Twilio, Zenvia, and Salesforce Mobile Connect, while building secure file upload workflows with signed URLs on Google Cloud Storage for files larger than 30MB.
- Built and deployed cloud-native backend services on GCP using Cloud Run, Firestore, Artifact Registry, Docker, Flask, FastAPI, Django, and Django REST Framework.
Backend Engineer | Python, Django, DRF, AWS & CI/CD at Arbache Innovations (2021-04 – 2022-05)
Promoted from Backend Intern to Backend Engineer, contributing to the development, scalability, and reliability of core platform features.
- Built a competency assessment platform using Django, Celery, Redis, and AWS, contributing to a 40% increase in new client acquisition.
- Designed a batch registration pipeline capable of processing up to 500 employees, reducing onboarding time from 4 hours to 5 minutes — a 92.5% improvement.
- Improved CI/CD pipelines using GitHub Actions, Docker, and Docker Compose, reducing deployment time by 67%.
- Designed asynchronous processing workflows with Celery and Redis, reducing batch processing time by 86%, and maintained REST APIs with optimized PostgreSQL queries and third-party integrations.
