About
8+ years building distributed systems, high-performance microservices, and AI integrations. Specialized in Node.js, TypeScript, cloud architectures, and delivering measurable impact.
Core Skills
Backend & Languages
Node.js, TypeScript, PHP, Go, Python
Cloud Platforms
AWS, Azure, Google Cloud, Kubernetes, Docker
AI & Integration
LangChain, OpenAI API, RAG, Prompt Engineering
Databases
PostgreSQL, MongoDB, Redis, Elasticsearch
Professional Experience
Backend Engineer - Linx
Feb 2022 – Present | Remote (Brazil)
- Own and evolve omnichannel OMS microservices (freight quotation, inventory, routing logic, custom freight rules) in SCRUM squads
- Refactored freight-quotation domain into dedicated CRUD microservice (13 entities, 40+ endpoints) using Node.js 22+, Express 5, MySQL 8, Redis, Elasticsearch, AWS S3/SQS/SNS
- Designed async data pipelines with SQS workers, SNS notifications, and S3 streaming validators; automated OpenAPI 3.0 documentation
- Performance program: Node clustering + library optimization → avg latency ~600 ms → 194 ms (−68%), p99 3.6 s → 446 ms (−88%), 5xx 4% → 0.1% (−97.5%)
- Contributed to Go-based freight cost API and maintained Azure AKS GitOps stack with FluxCD, Prometheus/Grafana, cert-manager
Freelance Developer (Self-Employed)
2016 – Present | Remote
- Deliver B2B backend and AI consulting projects across distributed systems, automation, and data APIs
- Brazilian Companies Data API: Built with Node.js, Redis, PostgreSQL achieving ~95% fewer repeat queries and sub-second cached responses
- AI-powered automation: Using LangChain and OpenAI API (RAG pipelines, prompt engineering, document generation) achieving ~80% API cost reduction
- WhatsApp → AI Assistant Gateway: Integrated BullMQ/Redis and Auth0; token caching cut auth overhead by ~95%
Backend Developer - Screencorp
Nov 2020 – Feb 2022 | Remote
- Led corporate communications platform development with real-time features
- Extracted push notifications into dedicated Node.js microservice for improved scalability
- Implemented WebSocket-based real-time communication features
Technical Lead - Global MKT
Aug 2016 – Sep 2019 | Hybrid
- Led team of 4–6 developers building e-commerce and marketing solutions
- Managed server infrastructure and deployment pipelines
- Achieved ~US$ 56k/year infrastructure cost savings through optimization
Key Projects & Metrics
- Freight CRUD Microservice: −97.5% 5xx errors through distributed tracing and retry mechanisms
- Performance Optimization: −68% avg latency (600ms → 194ms), −88% p99 latency on critical endpoints
- Brazilian API Gateway: 95% cache hit rate with Redis optimization, sub-second responses
- AI Legal Assistant: −80% LLM API costs via semantic caching, −90% manual document analysis
- WhatsApp Integration: −95% auth overhead through token caching, event-driven architecture
- Infrastructure Optimization: $56k annual savings through cost analysis and resource optimization
Certifications & Languages
Certifications
LPI Linux Essentials (LE-1) - November 2021
Languages
- Portuguese: Native
- English: Full Professional Proficiency
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