Rafael Matias
DevOps Software Engineer at Ethereum Foundation
Zurich, Zurich, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolRafael Matias is a DevOps Software Engineer with 12 years of experience building and maintaining resilient infrastructure for blockchain and enterprise systems from Zurich. He has deep back-end and DevOps expertise in Go, contributing to prominent open-source Ethereum projects like Swarm and Erigon where he streamlined APIs, modernized builds, and removed legacy components to improve deployment reliability. At the Ethereum Foundation and as a contractor for Swiss Re he focused on production-grade deployments, database initialization, and operational hardening across distributed systems. Rafael combines hands-on coding with infrastructure automation and a knack for untangling legacy technology debt—a practical strength reflected in repeated repository migrations and release work.
12 years of coding experience
9 years of employment as a software developer
IT: Networking and Programming, IT: Networking and Programming at Escola Secundária Júlio DantasBachelor of Science (BSc), Information Systems and Computer Engineering, Bachelor of Science (BSc), Information Systems and Computer Engineering at ISEL - Instituto Superior De Engenharia De Lisboa
Portuguese, German, English
Github Skills (20)
transaction10
transactional10
docker10
apidoc10
dockers10
go10
api10
ethereum10
blockchain10
golang10
devops10
buildr9
etherum9
database-design9
p2p9
Programming languages (25)
Github contributions (5)
ethersphere/swarm
Jun 2019 - Dec 2019
Swarm: Censorship resistant storage and communication infrastructure for a truly sovereign digital society
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:22 commits, 98 PRs, 116 pushes in 5 months
Contributions summary:Rafael primarily focused on maintaining and improving the Swarm project's infrastructure and core functionality. Their contributions included updating the project's Go version, removing unnecessary conversions in the API, and adding the user's address to the KademliaInfo structure. Furthermore, the user worked on correcting flag descriptions and disabling USB devices, while also addressing build-related issues, such as removing Debian package and Ubuntu PPA support and removing the Go 1.12 job. The user's work was also focused on releasing new versions.
swarmcensorshipblockchaincommunicationinfrastructure
gobitfly/eth2-beaconchain-explorer
Dec 2021 - Nov 2022
Open source golang based explorer for the eth2 beacon chain
Role in this project:Back-end Developer
Back-end DeveloperContributions:13 commits, 2 PRs, 1 comment in 11 months
Contributions summary:Rafael primarily focused on fixing bugs related to transaction parsing and unmarshalling within the context of an Ethereum 2.0 beacon chain explorer. They addressed issues in retrieving and displaying gas prices and made changes to database schema. Furthermore, the user worked on integrating the genesis fork version for signature validation and added chainId configurations. Their contributions involved modifying code related to Ethereum transaction processing, database interactions, and configuration management.
golangeth2-beacon-chainethereumbeacon-chainblockchain
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