Gustavo | Senior SRE · DevOps · DevSecOps · Blockchain Infrastructure

■ HEPHAESTUS LABS · GUSTAVO'S CORNER OF THE WEB SAVE SLOT 01 ■ AUTOSAVE ON

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LV.9

GUSTAVO

⚔SENIOR SRE · DEVOPS · DEVSECOPS · PLATFORM ENG

⚒FOUNDER · HEPHAESTUS LABS

◙SÃO JOSÉ DOS CAMPOS · BRAZIL · UTC-3

◈REMOTE · USD CONTRACTS · ASYNC-FRIENDLY

96/100

89/100

→ LV10

⬇DOWNLOAD CV PDF · Updated 2025 · EN/PT-BR available

CHARACTER STATUS

👋 Hey! I'm Gustavo — a bald, bespectacled infrastructure nerd from São José dos Campos, Brazil. I share my home with my wonderful fiancée and two chaos-gremlins disguised as Maine Coon cats. 🐱🐱

Founder of Hephaestus Labs, I work with American tech companies as a senior SRE and DevOps consultant. My days are split between keeping Kubernetes validator fleets alive, slashing cloud bills, and brewing strong coffee. Off the clock: cooking ambitious meals, playing Cryptid with friends, or tinkering with hardware I probably shouldn't be taking apart.

› Site Reliability Engineering (SRE)
› Platform / DevOps Engineering
› DevSecOps & Security Hardening
› Blockchain Validator Ops
› Cloud Cost Optimisation

✓ Full-time Remote Contracts
✓ Infra Audit & Consultancy
✓ Staff Augmentation (SRE/DevOps)
✓ Validator Node Operations
✓ Technical Writing & Runbooks

MASTERED ABILITIES

GRANDMASTER

MASTER

EXPERT

ADEPT

☸

KUBERNETES

GRANDMASTER

Platform engineering, multi-cluster ops & validator fleet management at scale.

✦ 25-node validator fleet, multi-region OVH

✦ Kyverno admission control & policy-as-code

✦ GPU nodepools, GKE, k3s on bare-metal

✦ Zero-downtime deploys & incident response

␤

ARGOCD / GITOPS

GRANDMASTER

Fully declarative org-scale GitOps pipelines. If it isn't in git, it doesn't exist.

✦ App-of-apps patterns, drift detection

✦ Multi-cluster sync & automated rollbacks

✦ Secret management with Vault & ESO

✦ Progressive delivery with Argo Rollouts

☁

CLOUD ARCHITECTURE

GRANDMASTER

Multi-cloud design with a relentless focus on cost & reliability.

✦ GCP → OVH migration, saved $7.5k/mo

✦ GCP · OVH · Latitude.sh · Hetzner

✦ 90TB/mo P2P blockchain traffic engineering

✦ Network design, BGP, private peering

⛏

BLOCKCHAIN OPS

MASTER

✦ Chainflip, EigenLayer AVS, Solana, NEAR MPC
✦ Validator reputation & epoch monitoring
✦ TSS nodes, P2P mesh, DDoS mitigation

⚙

CROSSPLANE / IaC

MASTER

✦ Crossplane v2 compositions & XRDs
✦ Terraform modules, org-scale provisioning
✦ Control plane as code, provider configs

◌

OBSERVABILITY & SRE

MASTER

✦ Prometheus, Grafana, multi-cluster alerting
✦ SLO/SLA design, on-call runbooks
✦ Validator dashboards built from scratch

⬡

PROXMOX / HOMELAB

EXPERT

✦ RTX 4090 GPU passthrough, Ollama in LXC
✦ k3s on Synology NAS, VLAN segmentation

🛡

CYBERSECURITY

ADEPT

✦ InfoSec Tecnólogo @ FIAP · Zero Day FIAP
✦ Infra hardening, threat modelling, RF/SDR

KNOWN TECHNOLOGIES & TOOLING

KubernetesArgoCDCrossplaneTerraformHelmKyverno GCPOVHAWSHetznerLatitude.sh PrometheusGrafanaLokiOpenTelemetry ChainflipEigenLayerSolanaNEAR MPCCanton DockerVaultProxmoxNeovimNushelln8nLinuxBashPythonGoGitGitHub ActionsGitLab CI

QUEST LOG

► ACTIVE QUEST

HEPHAESTUS LABS — FOUNDER & PRINCIPAL SRE

USD-generating DevOps & SRE consultancy serving American tech companies. Designing, deploying, and maintaining mission-critical cloud and blockchain infrastructure fully remote from Brazil.

FOUNDERSREDEVOPSDEVSECOPSREMOTE

► ACTIVE QUEST

SOLANA VALIDATOR — HARMONIC CLIENT

Operating a Solana validator node running the Harmonic client. Monitoring identity balance, stake delegation, vote activity, and consensus participation across epochs.

SOLANAHARMONICSTAKINGVALIDATOR

■ COMPLETED

CHAINFLIP VALIDATOR FLEET × 25 NODES

Architected and operated 25 Chainflip validator nodes across OVH Managed Kubernetes in multiple EU regions. Solved DDoS false-positives and cut ~$7.5k/mo GCP egress on ~90TB/mo of P2P traffic.

KUBERNETESCHAINFLIPOVHCOST OPTDDOS

■ COMPLETED

EIGENLAYER AVS OPERATIONS

Deployed and managed EigenLayer AVS restaking nodes. Evaluated reward activity and slashing conditions to optimise node selection and maximise restaking yields.

EIGENLAYERAVSDEFIRESTAKING

■ COMPLETED

NEAR MPC NODE OPERATIONS

Operated NEAR MPC nodes for threshold signature schemes. Managed P2P connectivity, keygen ceremonies, and node sync across distributed node sets.

NEARMPCP2PTHRESHOLD-SIG

EQUIPPED GEAR

☸

Kubernetes

␤

ArgoCD

⚙

Crossplane

☁

GCP / OVH

◈

Terraform

⬡

Proxmox

◙

Neovim

◆

Nushell

⛏

Chainflip

⟳

n8n

▣

Docker

◌

Prometheus

📊

Grafana

🔐

Vault

⚑

Latitude.sh

◧

Taskwarrior

■ WHAT I'M INTO RIGHT NOW

◈ Information Security Tecnólogo @ FIAP
◈ Hardware Hacking & RF / SDR Exploration
◈ Mesh / P2P Network Architecture
◈ DEF CON · BSides SP · Zero Day FIAP Community

BLOG · TECHNICAL WRITE-UPS

Infrastructure deep-dives, incident post-mortems, blockchain ops notes, and homelab experiments. I write the posts I wish existed when I was debugging at 2am.

SEND A RAVEN

Got an infra challenge? I'd love to hear about it. Whether it's a full contract, a one-off audit, or just a chat about your stack — reach out, I don't bite. USD · Remote · Async-friendly.

⌧

◈

linkedin.com/in/gustavo

✉

[email protected]

⬇

CURRICULUM VITAE

Download PDF · EN / PT-BR

■ TIMEZONE › BRT (UTC-3)
■ LANGUAGES › PT-BR ■ EN-US

AVAILABLE FOR NEW CONTRACTS · 2025