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Full-stack engineer cover letter example: results first

A cover letter for full-stack engineer jobs that leads with what you achieved, not with what you were responsible for. Copy it, replace the parts in [brackets] and use the words of the posting you answer.

Open full-stack engineer jobs today
508
Can be done from home
31%
Median advertised pay
$205K
Dear Hiring Manager,

I am applying for the Full-Stack Engineer position at [Company]. I have [number] years of experience as a full-stack engineer, most recently at [Current company], where my focus is API design, relational databases, automated testing.

Two results from that work:
- Built team billing end to end, from the PostgreSQL schema to the React screens, in 9 weeks; it now brings 18% of new revenue
- Replaced page reloads with live updates on the dashboard; time spent in the product rose 22%

[One or two sentences on why this company: a product you use, a goal from the posting, a problem you can help with.] I would bring the same focus on measurable results, and hands-on experience with React, TypeScript and Python, which the posting asks for.

I would welcome the chance to talk about how I can help. Thank you for your time.

Sincerely,
[Your name]

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Questions about a full-stack engineer cover letter

What should a full-stack engineer cover letter include?
Three things: the role you are applying for, one or two results from your full-stack engineer work with numbers, and one specific reason you want this company. Name the skills the posting names; for this work the most frequent today are React, TypeScript, Python.
Do full-stack engineer jobs ask for a cover letter?
None of the 90 open full-stack engineer postings with a full description here mention a cover letter in their text (counted today). The application form often has a separate field for one: when it does, a short letter still helps.
How long should a full-stack engineer cover letter be?
Three short paragraphs, under 250 words: a screen without scrolling. Recruiters read the first lines and the results; everything else is skipped.

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