Juan Sales
Rust Engineer at Terminal 3
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolJuan Sales is a Rust engineer based in Barcelona with over 14 years of production experience building distributed systems, blockchain protocols, and scalable backend platforms. He has led engineering and architecture efforts from startup to enterprise—serving as CTO, principal engineer, and tech lead—while recently focusing on Rust-based blockchain work including Narwhal protocol enhancements and a Blake3-backed B3FS. Comfortable across cloud-native tooling (AWS, Kubernetes, Terraform) and async Rust stacks (Tokio, Tonic, CosmWasm), he blends deep systems engineering with practical product delivery. He also brings a teaching background and formal CS training (MSc), which he leverages to mentor teams and refactor complex cryptographic/KMS protocols for production. An early employee at high-throughput SaaS and a recurring architect for payment and security-critical systems, he pairs hands-on implementation with architectural rigor.
14 years of coding experience
21 years of employment as a software developer
UPC Universitat Politècnica de CatalunyaBachelor of Computer Science Computer Science, Bachelor of Computer Science Computer Science at Universidad CAECE
English
Stackoverflow
141reputation
2kreached
0answers
2questions
Github Skills (54)
crypto10
cdn10
servant9
querying9
haskell8
dropbox-api8
plutus7
dropbox-sdk7
cryptocurrency6
azure6
api6
mocking6
sharepoint6
onedrive6
office3656
Programming languages (10)
Github contributions (5)
jproyo/upc-miri-tfm
Apr 2021 - Jan 2022
This Repository is for gathering the code and results for the TFM
Contributions:1 PR, 154 pushes, 9 branches in 9 months
tfmgathering
mxhero/puppet-dovecot
Jan 2015 - Oct 2017
Contributions:9 PRs, 9 pushes in 2 years 10 months
dovecotpuppet
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