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Lucas Mellos Carlos

@lucasmelloscarlos

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DevOps Engineer at Alpaca DB scaling Go-based Ledger and Reconciliation systems across AWS, GCP, and Azure.

Brazil

Message

At Alpaca DB, I scale and maintain Go-based Ledger and Reconciliation systems, and automated GitHub Actions pipelines that cut release time by 40%. I also monitor cloud infrastructure across AWS, GCP, and Azure, with 99.9% overall uptime and 99.9999% uptime on critical services.

At SignalWire Inc., I led the migration from Docker Swarm to Kubernetes across a multi-cloud environment. I used Terraform and Terragrunt for provisioning and operated platform tooling including ArgoCD, Istio, AWX, and Falco.

At Lojas Renner S.A., I led DevOps/SRE for OmniChannel operations and built CI/CD pipelines used by 600+ developers. I also drove a FinOps practice that delivered 40% cloud cost savings across AWS and Azure.

Experience

Work history, roles, and key accomplishments

Current

DevOps Engineer

Current

Alpaca DB

Apr 2025 - Present (1 year 5 months)

Scaled and maintained core Go-based systems like Ledger and Reconciliation to handle increasing global user demand. Automated CI/CD pipelines with GitHub Actions, cutting release time by 40% and boosting deployment reliability.

Go GitHub Actions AWS GCP Azure Prometheus Grafana Loki Kafka RabbitMQ

DevOps Engineer

SignalWire Inc.

Apr 2022 - Apr 2025 (3 years)

Led migration from Docker Swarm to Kubernetes in a multi-cloud environment across GCP, AWS, Azure, and OVH, using Terraform and Terragrunt for infrastructure provisioning. Owned production Kubernetes-native platform tooling, including ArgoCD, Istio, AWX, and Falco, ensuring platform reliability and security.

Kubernetes Docker Terraform Terragrunt ArgoCD Istio AWX Falco GitHub Actions Kafka RabbitMQ SOC2 ISO 27001 PCI

DevOps Lead

Lojas Renner S.A.

Nov 2020 - Mar 2022 (1 year 4 months)

Led DevOps/SRE for OmniChannel operations across LATAM, architecting Kubernetes-native Java microservices deployed on AWS and hybrid cloud environments. Operated production databases and ETL pipelines, and implemented Kubernetes-native tooling to enhance reliability and security.

Kubernetes Java AWS Azure Oracle MySQL SQL Server MongoDB Redis Azure Data Factory Kafka RabbitMQ ArgoCD Istio AWX Falco Docker Terraform Ansible Grafana Prometheus Dynatrace Azure Pipelines Jenkins FinOps

Mid-DevOps Engineer

National Service for Industrial Learning (SENAI-RS)

Mar 2019 - Nov 2020 (1 year 8 months)

Architected Kubernetes clusters and maintained multiple RabbitMQ clusters, improving system reliability and scalability through containerization with Docker. Managed and optimized CI/CD pipelines on Azure DevOps, improving deployment speed by 30% for containerized workloads.

Kubernetes Docker RabbitMQ Azure DevOps Python Prometheus Grafana MySQL MongoDB Redis SQL Server

Co-Founder

block.ino

Oct 2018 - Jul 2019 (9 months)

Built low-cost remote labs and hybrid mobile apps for education (Ionic, Node.js), winning national competitions in Brazil.

Ionic NodeJS Remote Labs Mobile Development

Research Internship & Emerging Leader

TELUQ University

Sep 2018 - Feb 2019 (5 months)

Deployed and managed Linux server environments supporting ongoing research projects. Developed remote laboratory setups compliant with IEEE standards, improving accessibility for 200+ students.

Linux IEEE Standards Remote Laboratories

Research Assistant & Technical Head

Remote Experimentation Laboratory (RExLab)

Managed on-prem infrastructure (VMware vSphere, hundreds of Linux servers) and developed remote laboratories. Full-stack development across PHP, JavaScript/jQuery, Node.js, Laravel, Bootstrap, and C/C++; consulted on projects across Brazil and Costa Rica.

VSphere Linux PHP JavaScript jQuery NodeJS Laravel Bootstrap C C++

Education

Degrees, certifications, and relevant coursework

Microsoft Azure

Azure Fundamentals, Cloud Fundamentals

2020 - 2020

Certified as Azure Fundamentals.

Federal University of Santa Catarina

Bachelor of Science, Information and Communication Technologies

B.S. in Information and Communication Technologies with focus on hybrid lab architecture design and integration of large-scale communication systems.

Federal University of Santa Catarina

Master of Science, Information and Communication Technologies

M.S. in Information and Communication Technologies with focus on learning-analytics architecture using MongoDB, Node.js, and Laravel for large-scale, data-driven systems.