JULIAN RUBINO
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Available for collaboration
$ cat about.txt
I'm very passionate about what I do. Although my role
is SRE/GRE, in reality, I wear a lot of hats — DevOps,
Developer, IT, [Security Engineer] and more.
I work with Cosmos L1 chains, EVM and non-EVM networks,
deploying smart contracts, operating nodes, running
validators, and building dApps across multiple chains.
[Security and cryptography] are core to everything I
build — from key management and HSM/multi-sig setups,
to validator slashing protection, threshold signatures,
hardened pipelines (SAST/DAST), secrets management with
Vault, Zero Trust architectures, and threat modeling.
I've built internal tools like multichain faucets,
communication bots, testnet swap dApps, and custom
metrics exporters. I manage infra on GCP, AWS, and
Hetzner bare metal with focus on automation, cost
reduction, and protocol stress testing.
Certified: Terraform Associate · CKA · SumoLogic · RedHat
Omnichain Blockchain Protocol — Cosmos L1 connecting L1 & L2 networks
GRE wearing many hats — SRE, DevOps, Developer, Security Engineer. Operating multiple chain nodes including validators and RPCs. Building internal tools like a multichain faucet, communication bots, testnet swap dApp, and custom metrics exporters. Managing infra across GCP, AWS, and Hetzner bare-metal with focus on cost optimization and automation via Terraform and Ansible. Protocol-level stress testing and localnet deploy automation.
Bitcoin Staking & Shared Security Protocol
Architecting cloud infrastructure for a protocol bringing Bitcoin's economic security to proof-of-stake chains. Designing CI/CD pipelines, deployment automation, and monitoring for distributed validator networks and Bitcoin staking operations.
Global Mobile Gaming Company — millions of daily active users
Migrated all games from bare-metal to cloud infrastructure. Built a complete, reliable, and secure cloud environment to handle millions of requests and users for top-grossing mobile games.
Cloud-native PaaS Platform
Owned the design, build, monitoring, and expansion of the PaaS (OpenShift) platform. Delivered a fully featured and secure platform with DevSecOps pipelines managing multi-tenant cloud-agnostic infrastructure.
Cryptocurrency Exchange & Fintech Platform
Managed, automated, and maintained multi-cloud infrastructure on AWS and GCloud. Operated BSC, Bitcoin, and Ethereum nodes for a crypto exchange serving thousands of users.
Supply Chain Technology Platform
Developed an internal CI/CD web application using MERN stack integrated with infrastructure. Managed and deployed infra on AWS using Terraform and Ansible, running production Kubernetes clusters for 300+ microservices.
Full-stack Web Applications
Developed full-stack web applications for local clients using the MERN stack. End-to-end delivery from design to deployment.
1st place hackathon project — a cross-chain token dispersion dApp that lets users send tokens to multiple wallets across different blockchains in a single transaction.
Hackathon-winning on-chain gaming dApp where users can bet and compete against other players in real-time minigames using any token on any connected blockchain.
Led the infrastructure and DevOps efforts for the digital transformation of a central bank in Colombia.
Purpose-built chaos engineering and stress testing toolkit designed to push blockchain networks to their absolute limits.
Intelligent notification and paging bot integrated with Slack that routes critical alerts and actionable events.
Comprehensive load and performance testing infrastructure using Locust and k6.
Internal developer tool that dispenses testnet tokens across multiple blockchain networks.
Built a full internal CI/CD web application using MERN stack integrated with infrastructure.
$ echo "Let's build something amazing together"
Let's build something
amazing together.
Julian Rubino is a Staff Engineer and Senior Site Reliability Engineer (SRE) based in Argentina, specializing in DevOps, cloud infrastructure, blockchain technology, and cross-chain protocols. With 8+ years of experience, Julian has worked across multiple industries including blockchain, gaming, fintech, and enterprise cloud services.
Security & Cryptography: Applied cryptography, key management, Hardware Security Modules (HSM), multi-signature schemes, threshold signatures (TSS), validator security, slashing protection, Zero Trust Architecture, IAM, HashiCorp Vault, secrets management, SAST, DAST, smart contract security, code audits, threat modeling, penetration testing, vulnerability management, bug bounty programs, container security, supply chain security.
Infrastructure & Cloud: Kubernetes, Docker, Terraform (Certified Associate), Ansible, AWS, Google Cloud Platform (GCP), Hetzner bare-metal, Helm, ArgoCD, OpenShift, Crossplane, Spacelift, DigitalOcean, Cloudflare.
Blockchain: Cosmos SDK, Tendermint, EVM chains, non-EVM chains, Bitcoin, Solidity, smart contract development, dApp development, node operations, validator operations, on-chain governance, DeFi protocols, cross-chain interoperability, lending protocols.
Languages: Go (Golang), Python, TypeScript, JavaScript, Rust, Bash, Shell scripting.
DevOps & CI/CD: CI/CD pipelines, GitHub Actions, GitLab CI/CD, Jenkins, ArgoCD, GitOps, deployment automation, pipeline security (DevSecOps).
Monitoring & Observability: On-chain monitoring, custom metrics exporters, Prometheus, Grafana, Loki, Vector, Datadog, Hypernative, New Relic, SumoLogic.
Other: Load testing (Locust, k6), chaos engineering, FinOps, cloud migration, bare-metal to cloud, microservices architecture, MERN stack, full-stack development.
Systems Engineering — Universidad del Salvador, Argentina
Sr. Site Reliability Engineer at an omnichain blockchain protocol (Cosmos L1 connecting L1 and L2 networks). Operating multiple chain nodes, validators, RPCs. Building internal tools including multichain faucet, communication bots, testnet swap dApp, custom metrics exporters. Managing infrastructure on GCP, AWS, Hetzner bare-metal. Terraform and Ansible automation. Protocol stress testing and localnet automation.
Sr. DevOps & Solutions Architect at a Bitcoin staking and shared security protocol. Cloud infrastructure architecture, CI/CD pipelines, deployment automation, monitoring for distributed validator networks.
Sr. Site Reliability Engineer at a global mobile gaming company with millions of daily active users. Migrated games from bare-metal to cloud infrastructure.
Sr. Software Engineer at a cloud-native PaaS platform. OpenShift platform design, DevSecOps pipelines, multi-tenant cloud-agnostic infrastructure.
SSr. Site Reliability Engineer at a cryptocurrency exchange and fintech platform. Multi-cloud infrastructure, BSC, Bitcoin, and Ethereum node operations.
Site Reliability Engineer at a supply chain technology platform. Internal CI/CD web application, production Kubernetes clusters for 300+ microservices.
Freelance Web Developer building full-stack applications with MERN stack.
UniSend (unisend.finance) — 1st place hackathon winner. Cross-chain token dispersion dApp for sending tokens to multiple wallets across different blockchains.
BetZillah — 1st place hackathon winner. On-chain gaming dApp with cross-chain wagering and trustless settlement.
Central Bank Digitalization — Digital transformation of a central bank in Colombia.
Blockchain Chaos & Stress Testing — Chaos engineering toolkit for pushing blockchain networks to their limits.
Ops Notification Bot — Intelligent Slack-integrated paging and alerting bot.
Load Testing Framework — Performance testing infrastructure using Locust and k6.
Multichain Internal Faucet — Developer tool dispensing testnet tokens across EVM and Cosmos chains.
In-house CI/CD Platform — Full-stack CI/CD web application managing 300+ microservices.
Email: julian.rubino0@gmail.com
GitHub: github.com/julianrubino
LinkedIn: linkedin.com/in/julianrubino
Location: Argentina (Remote worldwide)