Interview questions

Front-end developer phone screen questions: the stack in one pass, a shipped-screen walkthrough, the accessibility standard and pay fit

On this page
  1. What do you need from the hiring manager before the call?
  2. How should a 25-minute front-end developer phone screen run?
  3. Which knockout questions come first?
  4. How do you get the stack in one pass?
  5. How do you run a shipped-screen walkthrough?
  6. Which accessibility standard does the seat need?
  7. How do you ask about AI coding tools and the assessment?
  8. How do you test motivation on a front-end developer phone screen?
  9. How do you ask about pay without asking salary history?
  10. When should you advance a front-end developer?
  11. What should you not ask a front-end developer on a phone screen?
  12. Questions people ask

A front-end developer phone screen is a 20 to 30 minute recruiter call that checks whether the candidate has built and shipped what the seat needs before an engineer spends an hour on a technical round. Confirm the must-have framework and language in production in the last two years, the kind of product (marketing site, single-page app, design system, storefront) and the working pattern. Then take their recent stack in one pass, walk through one screen they shipped (what it did, how it worked with a keyboard, what was slow and how they knew), confirm which accessibility standard the seat works to, and close with motivation and pay expectations. Rules and standards below are dated as of November 2026.

This page is the first-call version. The deeper bank, with state management, cross-browser bugs, bundle size and code review questions, is in front-end developer screening questions; the general method for any engineer, including the ownership ladder, is in software engineer phone screen questions; the full loop is in the interview guide for software engineers. If you are not technical yourself, read how to interview for technical roles as a non-technical recruiter first.

What do you need from the hiring manager before the call?

FactWhy the screen needs itA usable answer (example)
The productA CMS marketing site, a large single-page app, a design system and a storefront are different jobs."Logged-in analytics dashboard used by about 2,000 business customers."
Framework, version and languageThe first knockout; adjacent frameworks are a hiring manager's call, not yours."React with TypeScript; server rendering through the team's framework."
Design system: owned or consumedBuilding components for twenty teams is not the same as using them."We consume the company system and contribute fixes."
Accessibility standardPublic sector and federal work carry a named standard; see the table below."WCAG 2.1 AA; one client is a county government."
Back end expected?"Front end" ads often hide API or Node work."Some API work in Node; no database design."
Assessment and AI tool rulesCandidates ask; the answer should be the same for everyone."90-minute take-home, then a live pairing round; AI tools allowed in the take-home if disclosed."
Employment type and locationFull-time, W-2 contract or corp-to-corp change the pay conversation."Full-time, hybrid two days, overlap 10 to 4 Eastern."

How should a 25-minute front-end developer phone screen run?

  1. Opening (1 to 2 minutes). Who you are, the product and team in two sentences, the length of the call, and your consent line if you record.
  2. Knockouts (4 minutes). Framework and language in production, product type, location and hours, work authorization.
  3. The stack in one pass (4 minutes). Their last two jobs, in a fixed order.
  4. Shipped-screen walkthrough (7 minutes). One screen, three prompts.
  5. Accessibility and assessment fit (3 minutes). The standard the seat needs, the process ahead.
  6. Motivation and pay expectations (4 minutes). Why now, what they need.
  7. Their questions and the next step (2 minutes). Consent to submit, interview times.

The timings are a planning example. If a knockout fails, say so kindly and end the call or redirect.

Which knockout questions come first?

QuestionWhat a good answer sounds likeWeak answer or red flag
The team uses [framework] with [language]. How long have you used each in production, and on what?A time span and a product: "Three years of React, two with TypeScript, on a customer portal."A tutorial or side project only, for a seat that needs production work.
Most of your time here would go to [the product]. Have you built that kind of thing?A close match, or an honest gap with something adjacent.Only marketing pages, for a complex logged-in app, without saying so.
The seat includes [API work in Node / none]. How much server-side work have you done?A clear split: "Mostly UI; I've written a few API routes.""Full stack" that turns out to mean calling existing APIs.
The role is [remote, hybrid, on site] with [overlap hours]. Does that work?A yes, or a clear limit you can take back.No overlap with the team's hours.
Are you legally authorized to work in the US, and will you now or in the future need visa sponsorship?A direct answer to both parts.None from the answer. Ask the same two parts of everyone.

The authorization wording follows the Justice Department's Immigrant and Employee Rights Section FAQ, which says an employer may generally ask whether applicants have the legal right to work in the United States and whether they will need visa sponsorship (as of November 2026).

How do you get the stack in one pass?

Ask once, for the last two jobs, in a fixed order, and write the answers down as said: "For each of your last two jobs, what framework and version, what language, how were pages rendered, how did the app handle state and data, how did you style it, what did you test with, and was there a design system?" People who did the work answer in seconds; people who sat next to it answer in categories.

JobFramework and versionLanguageRendering (client, server, static)State and dataStylingTestingDesign system
Current or last       
The one before       

Three checks you can run without judging the code:

  • Versions and dates. "Which version, and did you upgrade it?" Someone who led or survived a major upgrade remembers it.
  • Theirs or the team's. "Who chose that approach?" is enough to hear whether they decided, used or just watched.
  • Gaps said plainly. "We had almost no tests" is a better sign than a perfect list that matches the job ad word for word.

How do you run a shipped-screen walkthrough?

Ask before the call for one live page or screen they built, or, if it sits behind a login or an NDA, for a description of it. Then use the same three prompts for everyone. You are not judging the code; you are hearing whether they owned the screen in production.

  1. "What does this screen do, who uses it, and what part of it was yours?" Good: a user and a task, then their part, separated from the team's. Weak: a list of libraries.
  2. "If I used it with only a keyboard, or with a screen reader, what would happen?" Good: focus order, labels, what they tested by hand and one problem they fixed. Weak: "We ran an automated checker" and nothing else.
  3. "What was the slowest moment on that screen, and how did you know?" Good: a metric, how they measured it and what changed. Weak: "It felt fast."

For the third prompt, Google's web.dev guidance gives the answer key: Largest Contentful Paint within 2.5 seconds, Interaction to Next Paint of 200 milliseconds or less and Cumulative Layout Shift of 0.1 or less, measured at the 75th percentile of page loads, segmented across mobile and desktop (as of November 2026). INP replaced First Input Delay as a Core Web Vital in 2024. A candidate who names one of these and a before-and-after has worked on performance; one who only names a lab score may not have.

Which accessibility standard does the seat need?

Ask the hiring manager, then ask the candidate which standard their last product targeted. Three standards come up most, as of November 2026:

Who the product is forStandardSource
Most productsWCAG 2.2 is the current W3C Recommendation (the version dated 12 December 2024). It adds nine success criteria to 2.1 and removes 4.1.1 Parsing.W3C
US state and local governmentsThe ADA Title II rule uses WCAG 2.1 Level AA. After an interim final rule published April 20, 2026, compliance is due April 26, 2027 for governments of 50,000 or more people and April 26, 2028 for smaller ones and special district governments.ADA.gov
US federal agencies and the technology they buyThe Section 508 standards require electronic content to conform to WCAG 2.0 Level A and AA, incorporated by reference.U.S. Access Board

A good answer names a version and level and something they did to meet it: "We worked to 2.1 AA; I rebuilt our date picker because it trapped keyboard focus." A weak one names the acronym only. The screening bank has the follow-up questions on custom components and testing; the same standards matter for designers, covered in UX designer phone screen questions.

How do you ask about AI coding tools and the assessment?

QuestionWhat a good answer sounds likeWeak answer or red flag
How do you use AI tools in your work, and what do you not use them for?Specific uses (boilerplate, tests, explaining unfamiliar code) and a line they hold, such as not pasting client code where policy forbids it.No limits at all, or claims never to have tried one, with a portfolio full of generated code.
How do you check code you did not write yourself before it ships?Reads it, runs it, tests it, and can explain any line in review."If it works, it works."
The process is [take-home and live round], and the rule on AI tools is [policy]. Does that work for you?A yes, or a clear objection you can take back early.Declines any assessment for a client that requires one.

Give every candidate the same task and the same rule. How to score a take-home is in how to evaluate a take-home assignment, and how to check that the candidate can explain their own submission is in how to verify take-home assignment authorship.

How do you test motivation on a front-end developer phone screen?

QuestionWhat a good answer sounds likeWeak answer or red flag
What has you open to a move right now?A specific push or pull: a frozen legacy stack, no design partner, wants product work instead of agency sprints."Just looking", with nothing about the work.
What kind of front-end work do you want more of, and less of?Close to the seat: "More accessibility and design system work, less marketing pages."Wants the opposite of what the seat does.
If your company offered more to stay, what would it take?"Nothing realistic", with a reason."A senior title would do it." Counteroffer risk; tell the client.
Where else are you interviewing, and how far along?Stages and dates, names optional."Nowhere", then an offer deadline appears.

How do you ask about pay without asking salary history?

Many states and cities bar employers and their agents from asking about current or past pay, as of November 2026; the list is in salary history ban states. Ask what the candidate needs for this seat, in the employment type the seat offers.

Ask thisNot this
"What base and total compensation do you need, and how do you weigh equity?""What's your current salary?"
Contract seat: "What hourly rate do you need on a [W-2 / corp-to-corp] basis?""What rate is your current client paying?"
"The range for this seat is [range]. Does that work?""Can you send a pay stub so I can match it?"

If the candidate volunteers a number, keep it out of your notes and the submittal and record the expectation instead. This is general information, not legal advice; check the law where the job is located.

When should you advance a front-end developer?

Knockouts (all must be yes)

  • The must-have framework and language in production within the last two years.
  • A product close to the seat's, or a gap the hiring manager has agreed to consider.
  • Location and overlap hours work as stated.
  • Accepts the assessment process and the rule on AI tools.
  • Work authorization answered, and sponsorship needs known.
Area123
Stack matchAdjacent framework onlySame framework, different scaleSame framework and a similar product
Ownership of the shipped screen"We" throughoutOwned parts of itOwned it end to end, including what broke
AccessibilityAcronym onlyKeyboard and labelsA named standard and a fix they made
Performance"It felt fast"A lab scoreA field metric with a before and after
Motivation and fitNo clear reasonReason given, fit unclearSpecific reason that matches the seat

An example rule to agree with the hiring manager: advance when every knockout passes, stack match and ownership score at least 2, and two other areas score 3. Hold when one fact, such as how much server-side work they did, needs a question from an engineer. Decline when a knockout fails. Once hired, the 30-60-90 day plan for software engineers can be adapted for the first months.

What should you not ask a front-end developer on a phone screen?

The EEOC says pre-employment inquiries should be limited to what is needed to judge whether someone is qualified, that questions which reveal race, sex, national origin, age or religion may be used as evidence of intent to discriminate, and that employers may not ask about disability before an offer.

Do not askAsk instead
"When did you graduate?""Which version of [framework] did you start on, and on what product?"
"We want a digital native. How old are you?""Which browsers and devices did your last product support?"
"Where are you from originally?"The two-part work authorization question, asked of everyone.
"Do you need any accommodations? Are you disabled?"Tell every candidate how the assessment works and that accommodations are available on request.

The full list is in illegal interview questions. For the design side of the same team, see graphic designer phone screen questions. If you take the screen through your computer, Interview Signal keeps the framework and assessment questions pinned until you ask them and writes the stack and the walkthrough answers into the scorecard with the candidate's own words beside them, with no bot in the call.

Questions people ask

What should I ask a front-end developer on a phone screen?

Confirm the must-have framework and language in production in the last two years, the kind of product they built and the team's working pattern. Then take their last two jobs' stack in one pass (framework and version, rendering, state and data, styling, testing, design system), walk through one screen they shipped with three prompts about what it did, how it worked with a keyboard and what was slow, and finish with motivation, the assessment format and the pay they need, asked as an expectation.

Which accessibility standard applies to a government website?

For state and local governments in the US, the Justice Department's ADA Title II rule uses WCAG 2.1 Level AA, and an interim final rule published April 20, 2026 moved compliance to April 26, 2027 for governments of 50,000 or more people and April 26, 2028 for smaller ones and special districts. Federal agencies follow the Section 508 standards, which incorporate WCAG 2.0 Level A and AA by reference. WCAG 2.2 is the current W3C Recommendation.

What Core Web Vitals numbers count as good?

Google's web.dev guidance says Largest Contentful Paint should occur within 2.5 seconds, Interaction to Next Paint should be 200 milliseconds or less, and Cumulative Layout Shift should be 0.1 or less, measured at the 75th percentile of page loads, separately for mobile and desktop. INP replaced First Input Delay as a Core Web Vital in 2024.

Should I ask front-end candidates how they use AI coding tools?

Yes, as a workflow question rather than a trap. Ask what they use AI tools for, how they review and test code they did not write themselves, and what their last employer's policy allowed. Then tell them the client's rules for the take-home and the live round, so the assessment measures the same thing for everyone.