I'm Arthur Mastropietro, a passionate Software Engineer with 15+ years of experience crafting scalable, reliable, and high-performance systems. I specialize in Golang, with strong expertise in blockchain, microservices, and AI integrations. I love solving complex problems, writing clean code, and collaborating with great teams. Besides that i also play guitar in a heavy metal band, but that does not pay the bills.
- Backend Architecture: I build distributed systems in Go using Hexagonal Architecture, gRPC, Pub/Sub, and event-driven patterns.
- Blockchain Engineering: Over 7 years of experience with Solidity, smart contracts, NFTs, Web3 infra and Ethereum tools.
- Frontend Development: I develop cross-platform apps with React, React Native and Expo.
- Cloud & DevOps: Experience with GCP, AWS, Docker, Kubernetes, GitHub Actions, CI/CD.
- Observability & Resilience: I implement metrics, logs and traces using OpenTelemetry, Prometheus, Grafana, Loki.
- AI & RAG: I integrate AI via LangChain-style architectures, embeddings, vector stores and document pipelines.
Senior Software Engineer – Melitax Team
📆 Dez 2024 – Present
- Developing backend services in Go for tax processing and financial systems in Latin America.
- Heavy focus on performance, observability (OpenTelemetry, Datadog, New Relic), and event-driven architecture.
Senior Software & Blockchain Engineer
📆 Nov 2023 – Nov 2024
- Built scalable microservices in Go using GCP, Postgres, Redis, NATS, and Kubernetes.
- Led development of smart contracts and Web3 integrations.
- Implemented metrics, tracing, and alerts with Prometheus, Grafana, and OTEL.
Senior Software Engineer
📆 Mar 2018 – Oct 2023
- Lead blockchain engineer for NFT products and Web3 infrastructure.
- Built NFT Indexer, marketplace, and tokenized assets using Go and Solidity.
- Migrated entire platform to Google Cloud and introduced full CI/CD with GitHub Actions.
Head of Technology
📆 Dec 2020 – Jun 2022
- Designed scalable healthcare platform architecture in Go, Node.js, and React.
- Oversaw technical team and infrastructure on GCP, PostgreSQL, and Kubernetes.
Web Developer
📆 Nov 2014 – Jul 2017
- Contributed to the LifeSupport platform using PHP, Node.js, React.
- Led code quality improvements and technical debt reduction efforts.
- Worked across startups, agencies, and consultancies with stack including PHP, Angular.js, Bootstrap, AWS.
A platform for Brazilian musicians to form bands, jam online, and collaborate
Tech: Go · WebRTC · MongoDB · React · AWS · Socket.io
- Bachelor in Systems Analysis and Development – Anhembi Morumbi
- Postgraduate in Software Engineering – Anhembi Morumbi
Cheers 🍻