Denis Policastro
Staff DevOps Engineer at Nethermind
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolDenis Policastro is a Staff DevOps Engineer based in São Paulo with nine years of experience bridging software development and operations, currently shaping infrastructure and reliability at Nethermind. He started as a full-stack developer in 2014, bringing practical expertise in JavaScript, Go, Bash and a growing interest in Rust to his platform and automation work. Denis specializes in AWS infrastructure as code with Terraform, CI/CD (GitHub Actions, ArgoCD), Kubernetes orchestration and Prometheus-based observability, consistently building scalable, secure production systems. His consulting background honed a client-facing mindset for deadline-driven, cost-conscious solutions and he has partnered with hundreds of engineers to improve operational workflows. He also maintains blockchain infrastructure such as Ethereum nodes, adding niche expertise that informs his work at crypto-focused companies. Outside daily ops he contributes tooling and experiments on GitHub (0xDones), reflecting a hands-on, craft-oriented approach to platform engineering.
8 years of coding experience
9 years of employment as a software developer
Mackenzie Presbyterian University
Portuguese, English, Spanish, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (200)
env10
minecraft10
controller10
command-line-interface10
microservices10
k8s10
javascript10
charts10
kustomize10
dotenv10
continuous-delivery10
secrets10
helm10
jsonnet10
pipeline10
Programming languages (19)
Github contributions (5)
0xDones/terraform-monorepo-example
Jan 2022 - Jul 2022
Learn how to design a scalable Terraform monorepo
Contributions:14 commits, 14 pushes, 1 branch in 5 months
scalablemonorepodevopsinfrastructure-as-codeterraform
refl3ction/nodejs-blockchain-app
Apr 2020 - Feb 2022
Node.js application based on bitcoin's blockchain
Contributions:13 commits, 10 PRs, 21 pushes in 1 year 10 months
node-jsblockchaincryptocurrencynodejsbitcoin
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