DevOps Engineer cover letter example

Hiring managers skim a devops engineer cover letter for one thing: proof you can do this job, in their words. Below is a short letter that does exactly that. Replace the bracketed parts and the results with yours.

Dear Hiring Manager,

I'm applying for the DevOps Engineer role at [Company]. My background in one line: devOps engineer with 6 years running cloud infrastructure for SaaS products.

Two results from my last roles that match what you're asking for:
- Moved 60 services to Kubernetes with Terraform, taking deploys from weekly to 40 a day.
- Cut AWS spend by 34% ($410k a year) with rightsizing, spot instances and storage lifecycle rules.

I also raised uptime from 99.5% to 99.95% by adding health checks, autoscaling and runbooks. Day to day I work with AWS, Kubernetes, Terraform and CI/CD (GitHub Actions), which your posting lists among the core requirements.

I'd welcome a short call to walk through how I'd approach [a priority from the job ad] in the first 90 days.

Best regards,
Tomasz Nowak

Why this letter works

It is short. Under 200 words: it gets read to the end.
Results, not duties. Both proof points carry a number a recruiter can repeat to the team.
It mirrors the posting. AWS, Kubernetes, Terraform, CI/CD (GitHub Actions) are the words devops engineer ads use; swap in the exact terms from yours.
It asks for a next step tied to their priorities, not a generic "hope to hear from you".

Mistakes that get devops engineer cover letters skipped

Repeating the resume line by line instead of picking the two results that fit this job.
"I am a hard-working team player": claims without evidence are ignored.
One letter for every application. The ATS and the recruiter both notice.

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