DevOps Engineer Cover Letter Example

Dear Hiring Manager,

I am writing to apply for the Senior DevOps Engineer position at your company. With eight years of experience designing and managing cloud infrastructure at scale, I bring deep expertise in Infrastructure as Code, container orchestration, and CI/CD systems that enable engineering teams to ship with confidence and speed.

In my current role, I designed and manage AWS infrastructure supporting 220 microservices with 99.99% uptime, serving 18 million monthly active users. I implemented Terraform across three cloud environments, reducing provisioning time from days to under 15 minutes and enabling self-service infrastructure for 12 product teams. I also built CI/CD pipelines with GitHub Actions and ArgoCD that support 60+ daily deployments with zero-downtime rolling updates. Most importantly, I led our incident response program and established SRE practices that reduced mean time to recovery from 3.5 hours to 18 minutes.

Your company's commitment to developer experience and infrastructure reliability resonated with me -- particularly your recent move toward a platform engineering model. I have led similar platform team transitions and understand the organizational and technical challenges involved. I also bring significant cost optimization experience, having reduced cloud spend by $450K annually at my current company through rightsizing, reserved instances, and intelligent auto-scaling.

I would welcome the opportunity to discuss how my infrastructure expertise can contribute to your platform engineering vision. Thank you for your time.

Sincerely,

[Your Name]