I’m a self-taught software engineer whose career began at the age of 15. The last half decade has been largely focused on cloud infrastructure running distributed systems.

Here are a few of my open-source contributions.

If you wish to send me something that only myself is able to read, encrypt some message into a file with my pgp key and email it attached to devbytom@gmail.com.

Professional experience
Kittl

Senior DevOps Engineer @Platform 2024 - current

  • Led migration from PaaS to Kubernetes, standardizing deployment workflows and enhancing scalability while contempting growing costs
  • Designed and operated Kubernetes-based preview environments and CI/CD for a monorepo, enabling per-PR environments and eliminating Render/Vercel (~€60k/year savings)
  • Engineered continuous delivery for monorepo production releases, improving release consistency and reducing manual effort
  • Built and operated a cost-efficient observability platform using Grafana and VictoriaMetrics, replacing Coralogix (~€25k/year savings)
  • Drove application instrumentation, SLO-based alerting, and operational runbooks, reducing alert fatigue and improving incident response quality
  • Modernized traffic management by migrating from NGINX Ingress to Gateway API with Cilium and Envoy
Trade Republic

Software Engineer @DataPlatform 2023 - 2024

  • Implemented DataHub to improve data discovery and governance
  • Supported the Fincrime team to deliver the anti-fraud ML platform with AWS SageMaker
  • Joined the Platform Engineering L2 Oncall
    • Troubleshooted incidents, improved alerts’ playbooks, and enhanced monitoring

Site Reliability Engineer @ApplicationPlatform 2022 - 2023

  • Managed a broad variety of AWS resources
  • Tackled over monitoring gaps
  • Planned and executed infra migration from kOps to EKS
Jusbrasil

Site Reliability Engineer 2021 - 2022

  • Managed AWS/GCP environments terraforming through Atlantis
  • Employed GitOps practices with ArgoCD
  • Developed features for tracking Infrastructure costs and monitoring idle Cloud resources
  • Established Kubernetes constraints with OpenPolicyAgent to prevent resources out of good practices premises
  • Implemented distributed tracing with Jaeger and OpenTelemetry (but switched the approach in favor of Pixie and eBPF)
  • Established protocol-agnostic Prometheus metrics standards amongst our services
Descomplica

Site Reliability Engineer 2019 - 2021

  • Maintained AWS infrastructure through Terraform
  • Assisted engineering teams with infrastructure and continuous delivery matters
  • Developed automated delivery pipelines from GitHub events and Jenkins builds to Spinnaker deployments
  • Provisioned, managed, and monitored Kubernetes clusters
  • Performed incident troubleshooting and implemented solutions/alerts/battle cards to prevent/deal with them
  • Fought against a ransomware hacking attempt and prevailed (thanks to AWS support)
  • Developed distributed load tests for benchmarking features and drawing their limits
IBM Global Financing

Software Engineer 2018 - 2019

  • Provisioned, managed, and monitored OpenShift clusters
  • Developed automated delivery pipelines with OpenShift builds
  • Delivered the IBM Global Financing Ratecard automation software
    • Business logic about integrating decoupled entites preventing analysts from lots of manual and repetitive work
    • Backend written in javascript(NodeJS)
    • Frontend written with Angular framework
WorkGroup

Software Engineer 2015 - 2017

  • Maintened legacy .NET applications
  • Implemented continuous integration practices using Git (Bitbucket)
  • Developed a mobile application called HelpMeCars (already suspended)
    • Business logic about connecting customers and tows/insurance services
    • Backend written in javascript(NodeJS)
    • Frontend written with Ionic framework
RS Solutions

Software Engineer 2014 - 2015

  • Developed Delphi-based software for an electronics repair laboratory production line
  • Developed e-commerce store in ASP .NET MVC integrated to company’s ERP product
Tasken

Software Engineer 2009 - 2012

  • Maintained one of the largest debt recovery software in Brazil
  • Broke some knowledge barriers and let Delphi behind for C# and .NET
Digidata courses

Software Engineer 2008 - 2008

  • Performed a couple of database migrations
  • Started to learn SQL
  • Got hired after finishing the Delphi course