Cover letter examples

mobile engineer cover letter example (2026)

A mobile cover letter should name the platform and a release users felt — crash, startup, or a store constraint.

When this letter is worth sending

Send when native vs React Native is the fork and you need to show you are on the right side.

Example letter (teaching draft)

Fictional names and companies. Copy the structure, not the metrics. If you cannot discuss a line in an interview, delete it.

Dear Hiring Manager,

I am applying for the Mobile Engineer (iOS) role because you asked for Swift and offline behavior — that is the work I have shipped.

At Lumina I built the offline reading list so saves queued on a flaky commute. I also fixed an image-decode crash on low-memory devices after Crashlytics clustered it.

I am not going to lead with React Native on a Swift JD. Happy to walk through the release that went through review.

Best,
Alex Patel

What this letter does right

  • Platform in sentence one
  • A store or device constraint
  • Crash or performance only with a real baseline

Common mistakes for this role

  • Expert on both platforms when you shipped one
  • Screenshot-only proof
  • Fake App Store ranking

Pair it with the resume example

The letter should not repeat the resume. It should pick one proof and one company-specific sentence. See the matching mobile engineer resume example. Generator walkthrough: AI cover letter guide.

Frequently asked questions

Cross-platform on a native JD?

Lead native. Mention RN as extra unless RN is the job.

Include TestFlight stats?

Only with a time window you can explain.

Related cover letter examples

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