Hire a frontend developer who knows the browser, not just React
To hire a frontend developer, source from shipped work: live sites, component libraries, GitHub and npm. Test JavaScript fundamentals, rendering performance and accessibility, not framework names. BLS puts the May 2025 median for web developers at $92,650, while product-company frontend roles often benchmark against software developers at $135,980.
Which frontend developer are you actually hiring?
Frontend developer BLS describes [front-end developers](https://www.bls.gov/ooh/computer-and-information-technology/web-developers.htm) as the people who "create the technical features for a website's look": layout, components and the code between the design and the browser.
The title covers a marketing-site builder, a React engineer on a complex web app and a design engineer who lives in Figma and code. Decide which one before you search, because each sits in a different pool.
Where to find frontend developers worth hiring
Frontend work is public more often than backend work. Use that: you can see the result before you send a single message.
- Live sites and apps they built: open DevTools and look at what shipped
- GitHub repos for component libraries, design systems and UI tooling
- npm package maintainers in the part of the stack you use
- CodePen and personal sites, especially for CSS and animation depth
- Speaker lists from frontend conferences and local JavaScript meetups
- Reactiflux and similar framework communities, where people answer hard questions in public
- Profile search for employed engineers who show none of the above
- Adjacent titles: UI engineer, UI developer, web developer, design engineer, JavaScript engineer
Search strings for a frontend developer
Framework names alone return thousands of tutorial-level profiles. Add a signal of depth: accessibility, performance or a design system someone owned.
BOOLEAN
("frontend developer" OR "front-end developer" OR "frontend engineer" OR "UI engineer" OR "design engineer")
AND (React OR Next.js) AND TypeScript
AND ("design system" OR "component library" OR accessibility OR WCAG OR "Core Web Vitals")
NOT (intern OR bootcamp OR recruiter)
GOOGLE X-RAY
site:github.com "design system" React TypeScript "Storybook"
site:linkedin.com/in ("frontend engineer" OR "UI engineer") "design system" React
PLAIN-ENGLISH BRIEF
Senior frontend developer, 5+ years, React and TypeScript, who has built or maintained a design system used by several teams and cares about accessibility and performance. B2B SaaS. Remote, US time zones.
What does a frontend developer cost in 2026?
BLS files web developers and software developers separately. Which line fits depends on the work, so read both before you set a band.
| Measure | Figure | Read it as |
|---|---|---|
| Median pay, web developers (May 2025) | $92,650 a year | Closer to agency and marketing-site roles |
| Median pay, software developers (May 2025) | $135,980 a year | Closer to frontend engineers on a software product |
| Median pay, web developers and digital designers (2025) | $99,520 a year, $47.85 an hour | The group figure BLS headlines |
| Jobs in 2025, web developers and digital designers | 220,100 | A much smaller code than software developers |
| Projected growth, 2025 to 2035 | 5 percent | BLS rates this faster than average |
| Openings per year | About 13,600 | Replacements included |
Sources: BLS web developers and software developers, read 5 October 2026.
Why framework names are a weak filter for frontend hiring
Almost every frontend profile lists React. That word tells you someone has used it, not that they know why a component re-rendered 40 times or why a modal traps keyboard users. Screen on the browser: the event loop, layout and paint, focus order, and how the network shapes what a user sees first.
A developer with strong fundamentals moves between React, Vue and Svelte in weeks. One who only knows a UI kit stalls the first time a page is slow and the kit has no answer. When you have to choose, hire the fundamentals and teach the framework.
What to assess in a frontend developer, with example questions
5 areas, each anchored in something the candidate built. Ask what they measured, not what they would do.
Walk me through the last performance problem you fixed in a frontend app. How did you know it was slow?
A metric first, such as Interaction to Next Paint or Largest Contentful Paint, then a cause they found in a trace, such as a heavy re-render or a layout shift.
Which metric moved, and what exactly did the trace show before your change?
Tell me about a bug caused by a closure or the event loop.
A real case, such as a stale state value inside a useEffect, and how typed props or generics stopped that class of bug coming back.
What accessibility fix are you proudest of shipping?
A named fix, such as an aria-live region for async errors or focus trapping in a modal, and how they checked it with VoiceOver or axe.
How did you test it, and who found the original problem?
When do you keep state local, and when does it go somewhere shared?
A reasoned choice between local state, a store like Redux or Zustand, and a server cache like TanStack Query, with the bug that taught them the difference.
Describe the hardest component you built from scratch.
Something demanding, such as a virtualized table or a multi-step form, with controlled inputs, loading and error states and keyboard focus all handled.
A frontend developer hiring process that strong candidates finish
Frontend candidates drop out of long take-homes more than any other step. Keep the build exercise short and paid, or replace it with a review of work they already shipped.
- Name the product surface Marketing site, complex web app or design system. Write 3 must-haves and the browsers and devices that matter.
- Source from shipped work Search profiles and public work together. Before reaching out, open the candidate's live work and note one specific thing in it. "Your date picker on the booking flow handles keyboard input better than ours does."
- Run a structured first interview Cover performance, JavaScript depth, accessibility, state and UI build against one scorecard, so candidates are compared on the same criteria.
- Review real code together 60 to 90 minutes on a small component or on their own repo. Watch how they reason about states, not how fast they type.
- Meet the designer they would work with A short session on a real design handoff shows how they push back on a spec and where they fill gaps.
- Decide within a week Independent scores first, discussion second. Frontend engineers with public work get contacted often; a slow loop loses them.
How The Cognitive fits a frontend developer search
Each result card opens with a "Why this match" line traced to the profile.
Write the brief above in plain English and The Cognitive searches ~900M public profiles. Anyone who misses a must-have drops below the people who meet it; nobody is removed. Reveal verified emails and phone numbers for the developers you keep, and see an "Open to work" badge and tenure per role before you write.
The short version
- Decide which frontend role you mean before you search; the pools barely overlap.
- Source from shipped work, and mention one specific thing you saw in it.
- Screen on browser fundamentals, accessibility and measured performance, not framework names.
- Replace long take-homes with a short paid task or a review of real code.
- Benchmark pay on the BLS line that matches the work.
More for hiring frontend developers
Frontend developer job description · Frontend developer interview questions · AI interviewer for frontend developers · AI sourcing tool · Google X-ray search for recruiters · Hire a UX designer
Frequently asked questions
How much does it cost to hire a frontend developer?
Salary is most of it. BLS put the May 2025 median at $92,650 for US web developers and $135,980 for software developers; a frontend engineer on a software product often sits closer to the second. Add sourcing tools, your engineers' interview hours and any agency fee. A short, structured loop keeps the non-salary part low.
Where do I find frontend developers?
Start with work you can see: live sites, GitHub component libraries, npm packages, CodePen and frontend conference speakers. Then search profiles for employed developers who keep their work private. The Cognitive searches ~900M public profiles from a plain-English brief and shows an "Open to work" badge and tenure per role on each person.
How long does it take to hire a frontend developer?
No reliable public figure exists for frontend roles specifically. What makes it slow is predictable: a vague brief, waiting for applicants instead of sourcing, and take-home projects that strong candidates abandon. Sourcing from day 1 and keeping the exercise short removes most of the delay.
Should I give frontend candidates a take-home test?
Only a short one, and pay for it if it runs past 2 hours. Strong developers with jobs skip long unpaid take-homes, and weak ones can get help with them. A live review of code they already wrote, or a 60 to 90 minute pairing session, tells you more.
What is the difference between a frontend developer and a web developer?
BLS groups both under web developers and splits front-end, which builds the look and the interface, from back-end, which builds the framework the site runs on. In job ads, "web developer" often means someone who does both on smaller sites, while "frontend engineer" usually means a specialist on a larger product.
Can an AI interview test frontend skills?
It can test reasoning: why a page was slow, how they fixed an accessibility bug, where state should live. The Cognitive runs a live, two-way AI video interview with questions that adapt to each answer and up to 5 resume claims probed. It is not a coding environment, so keep a code review round for finalists.
What does The Cognitive cost?
AI Sourcing and AI Interview each start at $99/month. Plans are monthly and you can cancel anytime. Each interview plan includes a monthly allowance of interviews, and extra ones come from a top-up.
Is there a free trial?
Yes. Every new account gets a free trial with 100 sourcing credits and 2 AI interviews. That is enough to run a frontend developer search and interview 2 candidates before you pick a plan.
Explore: AI interviewer for frontend developers · Frontend developer interview questions · Frontend developer job description · Hire software engineers · Pricing