Why web developer cover letters often undersell the work
Web development is one of those fields where the work is visible to millions of people but the cover letters describing it are often invisible. Candidates list frameworks and languages without showing what they built. "Proficient in React and Node.js" appears in thousands of applications. The hiring manager needs to see what your code actually does in production: traffic served, performance achieved, and standards met.
This example from Jake Newbury shows how to present web development work with the specificity it deserves. He works at Box UK in Cardiff and is applying for a Web Developer role at BBC Wales.
Open with a connection to the company
Jake's opening is distinctive. He does not start with a list of technologies. He starts with a personal connection: he interned at Wales Online during university and experienced editorial web development firsthand. Fast turnarounds, real traffic, content that matters to people. He frames the BBC role as returning to that kind of work with considerably more experience.
Your takeaway: If you have a genuine connection to the company or its industry, lead with it. A personal story told in two sentences is more memorable than a skills summary.
Show production-grade work with performance data
The body of Jake's letter is packed with specifics. He built the Natural Resources Wales website on Next.js with a headless CMS: 1.2 million monthly visitors, fully bilingual in English and Welsh, and WCAG AA compliant across all 240 page templates. He has delivered eight client projects on time and within budget. He improved Core Web Vitals to "Good" across all three metrics for five client sites. He set up automated accessibility testing in CI that caught 92 violations before launch.
His previous work includes rebuilding a recruitment website from WordPress to Next.js and Sanity, cutting page load from 5.8 seconds to 1.9 seconds, and building a candidate portal used by 4,200 people.
Your takeaway: For each project, include the technology, the scale (traffic or users), and the quality metric (performance scores, accessibility compliance, delivery record).
Address what makes this role different
Jake closes by naming two things that draw him to the BBC specifically: the bilingual challenge (he has already shipped a production Welsh-language site and contributes to open-source Welsh language tools) and the audience scale and editorial pace that distinguish media development from agency work.
What to include in your web developer cover letter
- Live projects with traffic numbers and technology stack
- Performance improvements (Core Web Vitals, page load times)
- Accessibility compliance with specific standards met
- Delivery track record (projects delivered on time and budget)
- Testing and CI practices you have implemented
- A specific reason for wanting this company or industry
What to leave out
Do not list every language and framework you know. Do not describe yourself as a "full-stack developer" without specifying what you have shipped. Do not mention personal projects unless they have significant traffic or community adoption.
Final thoughts
A web developer cover letter should prove that you build things people use, at scale, with quality. Traffic numbers, performance scores, and accessibility standards are your strongest arguments. Combine those with a genuine reason for wanting the role and keep the whole thing concise. The code speaks, but first your cover letter needs to get you through the door.
