+234 816 746 2431 davidessienshare@gmail.com

DevOps Engineer

Bitmama/ChangeraRemote (Lagos, Nigeria)Jan 2021 – Nov 2024

Role overview

As a DevOps Engineer at Bitmama/Changera, I was responsible for designing, managing, and optimizing Kubernetes-based production infrastructure across multiple services and environments, ensuring high availability and cost efficiency.

Key responsibilities

  • Designed and managed Kubernetes-based production infrastructure on DigitalOcean using Terraform.
  • Implemented CI/CD pipelines with GitHub Actions, Helm, and ArgoCD to automate deployments.
  • Collaborated with developers to troubleshoot issues across application, infrastructure, and networking layers.
  • Set up monitoring and alerting using Prometheus and Grafana to improve system visibility and reduce MTTR.
  • Automated cluster scaling to handle traffic spikes and optimize resource usage.

Selected achievements

  • Maintained 99% uptime for production infrastructure while managing costs effectively.
  • Transformed manual deployment processes into automated, reliable workflows.
  • Improved system observability and reduced mean time to recovery through proactive monitoring.

Tools and technologies

  • Infrastructure: Kubernetes, Terraform, DigitalOcean
  • CI/CD: GitHub Actions, Helm, ArgoCD
  • Monitoring: Prometheus, Grafana
  • Scripting: Bash, Python
Kubernetes (EKS/GKE)TerraformGitHub ActionsHelmArgoCDDigitalOceanPrometheusGrafana