Cilas B.

Cilas B.

Londrina, Parana, Brazil
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About Me

Cilas is a Senior DevOps Engineer heavily focused on build and deployment systems. He designs and implements solutions on observability, reliability, security, and access governance into systems and processes. Cilas has 12+ years of IT experience, including 6 years specializing in on-premise and cloud infrastructure and 3 years in the game industry. He builds and deploys DevOps solutions for multiple products across web and mobile projects and assists the dev team with bugs and new feature implementations using open-source and cloud solutions.

Backend

Database

DevOps

Workflow

JIRA Github Gitlab GitHub Actions

Other

Work history

UpStack
UpStack
Senior DevOps Engineer
2021 - Present (4 years)
Remote
  • Delivering CI/CD as part of an Agile team to improve performance by automating and streamlining operations and processes.

  • Helping build and improve infrastructure, application, and performance development and ensuring tight security including data encryption, security groups, and environmental scanning.

  • Ensuring high-quality deliverables and implementing DevOps and security best practices in fast-paced environments.

CBELTRAME
CBELTRAME
DevOps Engineer Advisor | AI Startups
2025 - Present
Remote
  • Advising AI-driven companies on scalable, secure, and cost-efficient cloud-native infrastructure.

  • Building ML platforms and CI/CD pipelines that empower rapid experimentation, reproducibility, and model deployment.

  • Architecting MLOps pipelines integrating Kubernetes, Kubeflow, MLflow, and Argo Workflows to streamline model training, testing, and deployment.

DevOpsDevOps Engineer Artificial IntelligenceMachine LearningCI/CD Pipelines MLOpsML Pipelines KubernetesKubeflowMLFlow Argo Workflow
Mindera
Mindera
Senior DevOps Engineer for Staffline
2025 - Present
Remote
  • Helping the team to re-architect legacy applications previously running on ECS and Lambda, transitioning them into a Kubernetes-based environment.

  • Conducting deep investigations into legacy systems to migrate Public API Gateways into Private API Gateways, including redesigning Lambda Functions to run within VPCs when necessary.

  • Implementing Traefik as the ingress controller to route traffic from Kubernetes to Private API Gateways, improving integration and streamlining developer workflows.

  • Leveraging Apache Kafka to decouple services, ensure idempotency, and provide reliable, persistent event streaming across distributed systems.

DevOpsKubernetesLambda Functions AWS Lambda Amazon API Gateway Amazon Virtual Private Cloud (VPC)traefikApache Kafka Distributed Systems
Mindera
Mindera
Senior DevOps Engineer for 2K Games
2022 - 2025 (3 years)
Remote
  • Worked with K8s in multi-regions to provide a better user experience for end users (gaming industry) using GKE, Helm Charts, Argo CD, Terragrunt, Prometheus, Grafana, Kibana, and Elasticsearch.

  • Enhanced CI/CD tools to facilitate the work and improve the product, simplifying the workflows using Jenkins and GitHub Actions, including E2E tests, stop buttons, more control over environment promotion, scaling up and down for lower environments, saving costs for lots of K8s clusters.

  • Worked to better fit thousands of concurrent players such as 250K+ users, providing the necessary architecture to handle the load.

  • Helped the platform to better control workloads by scheduling game servers and other services using taints and tolerations.

  • Hardened Kubernetes ingress security by implementing Cloud Armor rate-limiting policies and WAF rules, mitigating DDoS threats.

  • Designed and maintained multi-region Kubernetes infrastructure for a multiplayer gaming platform serving 250K+ concurrent players using k6 load testing, ensuring 99.9% uptime and optimal user experience.

  • Worked on a multi-cloud POC (AWS-GCP), solving workload portability, IAM, and networking challenges.

  • Worked on the cost reduction in Kubernetes lower environments by 40% through an agentless architecture using GitHub Actions pipelines and Bash scripts for dynamic cluster scaling.

  • Optimized CI/CD workflows using Jenkins and GitHub Actions, implementing E2E tests and automated release management to reduce deployment time and improve system maintainability.

  • Managed PostgreSQL and Redis instances for high availability, developing automated disaster recovery strategies and custom configurations tailored to the gaming studio’s needs.

  • Planned and delegated DNS zone to AWS on GCP Cloud, facilitating DNS centralization for the client.

  • Monitored and enhanced system performance with Prometheus, Grafana, and Datadog, creating dashboards that reduced troubleshooting time.

Truelogic Software
Truelogic Software
Senior DevOps Engineer
2022 - 2022
Remote
  • Migrated Kubernetes apps from AWS (EKS) using Jenkins to GCP (GKE) using GitLab.

  • Worked with a Python tool to deploy Kubernetes apps using Terragrunt, Helm, Vault, GCP, and GitLab.

  • Applied AWS S3 to configure lifecycle policies, security policies, and other configurations to save costs.

  • Worked on an eCommerce project, performing the right scalability for resources on Q4 Holidays.

  • Worked with a Python tool to deploy Kubernetes apps using Terragrunt, Helm, Vault, GCP, and GitLab, ensuring faster app bootstrap and deployment.

  • Used Vault to mount secrets in K8s, improving security and data privacy.

  • Managed Kafka MSK, ensuring resilient and highly available streaming storage.

Trimble
Trimble
DevOps Engineer
2020 - 2022 (2 years)
Remote
  • Helped to move Rancher apps using Docker Compose to K8s (35+ apps) using Datadog, Helm Charts, Buildkite, Bitnami Sealed Secrets, and EKS.

  • Worked on Ubuntu 14 upgrade to Ubuntu 20 for EC2 legacy deployments and used Packer and Ansible to create the AMIs.

  • Created custom Terraform modules to facilitate the team's needs such as Lambda, API Gateway, CloudFront, etc. including Datadog monitoring settings and default values.

Atos
Atos
Support Server Analyst | Monitoring Analyst
2015 - 2020 (5 years)
Londrina, Brazil
  • Implemented DevOps tools to automate manual processes for deploying, managing, configuring, and monitoring solutions.

  • Performed in-depth performance tuning, hardware troubleshooting, and maintenance on servers and cloud solutions.

  • Monitored servers, handled storage and backups, and troubleshot platform and integration issues on systems.

Showcase

DevOps Engineer - Automatic IAM User Key Rotation
DevOps Engineer - Automatic IAM User Key Rotation
  • Implemented automated IAM user key rotation process using Python (boto3) for increased project security

  • Utilized Lambda to trigger new key creation, stored in the AWS Secret Manager

  • Designed system for old key deactivation and deletion past 90-day maximum active period

DevOps Engineer - Patching Servers On-premises
DevOps Engineer - Patching Servers On-premises
  • Implemented Ansible AWX for automated patching in Linux and Windows Servers within a VMware cluster

  • Took server snapshots, halted services, applied patches, and rebooted servers to ensure system health post-patching

  • Checked and assured services were functioning correctly after reboot

DevOps Engineer - Datadog Monitoring
DevOps Engineer - Datadog Monitoring
  • Implemented monitoring solutions to track metrics and maintain processes

  • Worked with Datadog for log, metrics, and trace implementation for Kubernetes and Java apps

  • Utilized Helm Chart, Datadog, Kubernetes, and Docker in monitoring implementation

Education

AWS Certified Solutions Architect - Professional (Expires Dec 2027)
AWS Certified Solutions Architect - Professional (Expires Dec 2027)
AWS
2024 - 2024
Associate Cloud Engineer Certification (Expires Mar 2027)
Associate Cloud Engineer Certification (Expires Mar 2027)
Google
2024 - 2024
CKS: Certified Kubernetes Security Specialist (Expires Nov 2024)
CKS: Certified Kubernetes Security Specialist (Expires Nov 2024)
The Linux Foundation
2022 - 2022
CKA: Certified Kubernetes Administrator (Expires Mar 2025)
CKA: Certified Kubernetes Administrator (Expires Mar 2025)
The Linux Foundation
2022 - 2022
Amazon Web Services Solutions Architect Associate (Expired Jan 2025)
Amazon Web Services Solutions Architect Associate (Expired Jan 2025)
Amazon Web Services (AWS)
2022 - 2022
HashiCorp Certified: Terraform Associate (Expired Feb 2023)
HashiCorp Certified: Terraform Associate (Expired Feb 2023)
HashiCorp
2021 - 2021
DevOps Essentials
DevOps Essentials
ITCERTS
2020 - 2020
B.Eng Computer Engineering
B.Eng Computer Engineering
UNOPAR - Brazil
2012 - 2016 (4 years)