Donald Stewart
Donald Stewart

Senior Site Reliability Engineer

Actively looking · Member since 26 Sep 2026
Location
San Diego, United States
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Site Reliability and Cloud Infrastructure Engineer with more than 14 years of experience building resilient, highly available enterprise platforms. I specialize in multi-cloud architecture, automated Day-2 operations, reliability engineering, and infrastructure automation across AWS, Google Cloud Platform, and Microsoft Azure.

I design declarative, maintainable infrastructure using Terraform, Ansible, CloudFormation, OpenTofu, and Pulumi. My work focuses on eliminating operational toil, improving deployment reliability, and creating scalable self-service platform capabilities for engineering teams.

I have deep experience with Kubernetes, including Amazon EKS and Google Kubernetes Engine, along with Docker, Helm, Kustomize, ArgoCD, and service-mesh technologies. I have supported platforms serving up to 50,000 concurrent users while maintaining availability targets as high as 99.99%.

I build observability and incident-response practices using Prometheus, Grafana, Datadog, OpenSearch, and PagerDuty. I am focused on reducing MTTR through actionable telemetry, automated rollback processes, disaster-recovery procedures, and reliable runbooks.

I have delivered secure CI/CD and internal developer platform solutions using GitLab CI/CD, Harness CD, GitHub Actions, Jenkins, Backstage, and cloud-native APIs. I also mentor cross-functional engineering teams on SRE principles, production readiness, and automated disaster recovery.

My technical background includes Python, Go, JavaScript/TypeScript, Bash, REST API design, cloud networking, IAM, zero-trust security, and VMware virtualization. I am motivated by building robust systems that make software delivery safer, faster, and easier for developers.

Notice period: 2 weeks

Skills

35 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Senior Site Reliability Engineer, Environment Automation GitLab

I engineer resilient global infrastructure using cloud-native hybrid deployments on Google Kubernetes Engine and Amazon EKS. I integrate Prometheus-based monitoring pipelines to improve observability and reduce mean time to resolution.

I architect multi-cloud reference architectures across AWS, GCP, and Azure using the GitLab Environment Toolkit. These self-managed environments are designed to support up to 50,000 active concurrent users.

I develop Terraform modules and Ansible playbooks for automated provisioning and configuration management. I also mentor teams on SRE practices, automated disaster recovery, production runbooks, and continuous-delivery workflow integrations.

Staff Software Engineer, Cloud Platform Engineering Harness

I spearheaded automated cloud release pipelines using Odin, built on AWS Step Functions and Lambda, to enable safe blue/green deployments of 12-factor microservices to AWS Auto Scaling Groups during a 20x increase in user traffic.

I automated infrastructure provisioning with Terraform and Python, raising mission-critical deployment success rates from 90% to 97% while supporting hundreds of daily production releases. I also migrated legacy monolithic applications into containerized Docker microservices deployed across isolated AWS VPC subnets with strict IAM and zero-trust controls.

Senior DevOps Engineer Coinbase

Infrastructure Engineer VMware

I configured enterprise hypervisor storage arrays and integrated VMware vSphere Replication into ESXi host clusters to establish automated disaster-recovery and failover testing capabilities.

I automated hypervisor lifecycle management and environment provisioning across vSphere 5.1 data centers using custom vmrun batch scripts, reducing laboratory setup time by 65%.

Education

Learning history

University of California, San Diego

Bachelor of Science, Computer Science

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