Question 1
Difficulty: easy
How do you approach auditing a web application for accessibility issues, and what tools or methods do you rely on most?
Sample answer
I start with a mix of automated checks and manual review because neither one is enough on its own. Automated tools are useful for catching obvious issues like missing alt text, color contrast failures, form labeling problems, and ARIA misuse, but they only surface part of the picture. I usually begin by running a scan, then I manually test key user flows with a keyboard, screen reader, and zoom settings. I pay close attention to focus order, visible focus states, error handling, and whether interactive elements behave consistently. I also check semantic structure in the DOM, because good accessibility often starts with good markup. When possible, I verify against WCAG criteria and document issues in a way that’s specific enough for engineers to act on. I try to prioritize findings by user impact, so teams can fix the blockers first and avoid getting overwhelmed by a long, low-value checklist.
Question 2
Difficulty: medium
Tell me about a time you had to convince a product or engineering team to fix an accessibility issue that they initially treated as low priority.
Sample answer
In one project, the team wanted to ship a new checkout flow quickly, and accessibility concerns were seen as polish rather than a release requirement. The biggest issue was that several form errors were only shown visually, so screen reader users would have had no clear way to understand what went wrong. Instead of framing it as a compliance problem, I walked the team through the experience as a real user would encounter it. I demonstrated how frustrating it was to submit the form and get no useful feedback. I also showed how the same fix improved the experience for everyone, especially on mobile and in high-stress checkout situations. Then I proposed a small, practical remediation plan with clear ownership and minimal design changes. That shifted the conversation from debate to action. We implemented the fix before launch, and the team later started including accessibility checks earlier in the sprint because they saw how it reduced rework.
Question 3
Difficulty: hard
How would you make a custom UI component, such as a dropdown or modal, accessible from the start?
Sample answer
I’d start by asking whether a custom component is truly necessary, because native elements are almost always the most accessible option. If a custom component is justified, I design it around expected keyboard and assistive technology behavior first, not visuals first. For a modal, that means trapping focus inside while it’s open, moving focus to a logical element when it opens, restoring focus on close, and making sure escape closes it when appropriate. I also make sure background content is hidden from screen readers while the modal is active. For a dropdown or listbox, I’d define clear keyboard interaction patterns, manage selected and active states carefully, and ensure roles and labels are correct. I work closely with designers and engineers so the interaction model is documented early. I also test the component with keyboard only, screen readers, and zoom because custom UI often breaks at the edges. My goal is to make accessibility part of the component’s definition, not an afterthought.
Question 4
Difficulty: medium
What is your process for testing accessibility with a screen reader, and how do you decide which screen reader to use?
Sample answer
My approach depends on the platform and the user base, but I always test in a way that reflects real usage rather than just checking boxes. For web on Windows, I usually start with NVDA because it’s widely used and very practical for fast iteration. If the product has a large enterprise audience or specific support needs, I also test with JAWS. On macOS and iOS, I use VoiceOver, and on Android I may use TalkBack if the product is mobile-heavy. I listen for how content is announced, whether landmarks and headings create a useful structure, and whether form fields, buttons, and dialogs have understandable names and states. I also check whether dynamic updates are announced appropriately, especially for validation and live content. I keep notes on both the technical issue and the user experience impact, because a fix often depends on knowing what the screen reader actually conveyed. The key is not just hearing output, but understanding whether the interaction is efficient and predictable for the user.
Question 5
Difficulty: hard
Describe a situation where you found an accessibility bug that automated testing did not catch. How did you identify it?
Sample answer
One of the most important bugs I found involved a component that passed automated checks but still failed badly for keyboard and screen reader users. It was a searchable menu that looked fine in static review, and the automated scanner didn’t flag anything serious. When I tested it manually, I noticed the focus moved into the menu, but the active option wasn’t announced clearly, and arrow-key navigation behaved inconsistently after filtering results. The issue came from the way state was updated in the DOM rather than the markup itself. That’s the kind of problem automation often misses because the code can be syntactically valid while still being unusable. I documented the exact keystrokes, the expected behavior, and what the assistive tech announced. Then I worked with the engineer to align the implementation with ARIA patterns and make the component behave more predictably. The fix improved usability for screen reader users and also made keyboard interaction more stable for everyone.
Question 6
Difficulty: medium
How do you collaborate with designers to ensure accessible experiences without constantly blocking their creative process?
Sample answer
I try to position accessibility as part of good design rather than a constraint that shows up too late. The best collaboration happens when I’m involved early enough to catch issues before they become expensive, but not so late that I’m only reviewing finished mockups. I usually focus on the areas where designers have the most leverage: color contrast, focus visibility, reading order, target size, form layout, and whether interaction patterns will work with keyboard and assistive tech. I also like to translate guidelines into practical design decisions, because designers are much more receptive when they understand the why behind a rule. If a concept has accessibility risks, I suggest alternatives instead of just saying no. For example, I might propose a different information hierarchy or a clearer error pattern. That keeps momentum going while still protecting the user experience. In my experience, design teams respond well when accessibility feedback is specific, timely, and tied to user impact.
Question 7
Difficulty: hard
What would you do if a release was approaching and you discovered a serious accessibility issue in a critical workflow?
Sample answer
I’d first assess the severity in terms of user impact and business risk, not just the technical description of the issue. If it affects a core flow like sign-up, checkout, or login, I’d treat it as urgent. I’d reproduce the issue, document the exact failure, and confirm whether there’s a temporary workaround or if users are completely blocked. Then I’d bring the right people together quickly: engineering, product, design, and if needed, release management. I’d recommend a fast decision based on the facts. If the fix is small and low-risk, I’d push for remediation before release. If the fix is larger, I’d suggest a risk-based call, but I would not let the team ignore the issue or assume it can wait indefinitely. I’d also want a concrete follow-up plan, not just a promise to revisit later. In my experience, transparency and clear prioritization are what keep accessibility from becoming a recurring last-minute surprise.
Question 8
Difficulty: medium
How do you evaluate whether an application meets WCAG requirements without becoming overly checklist-driven?
Sample answer
I use WCAG as a framework, but I try not to reduce accessibility to a box-ticking exercise. The standards are essential because they give teams a shared language and measurable criteria, but the real goal is usable experiences for people with different abilities and contexts. When I review a product, I map findings to relevant success criteria so engineers and stakeholders know what standard is affected. At the same time, I think in terms of user tasks: Can someone complete a form? Understand the page structure? Recover from an error? Navigate without a mouse? That user-centered lens helps me spot issues that may technically look compliant but still create friction. I also pay attention to edge cases like zoom, motion sensitivity, and cognitive load. If a team only hears “WCAG failure,” they may fix the symptom. If they understand how a person experiences the issue, they tend to build better long-term solutions. That balance is what I aim for in my audits and recommendations.
Question 9
Difficulty: medium
Tell me about a time you had to write or improve accessibility documentation or standards for a team.
Sample answer
At one company, accessibility knowledge was scattered across a few people, which meant teams were repeating mistakes and relying on memory instead of a clear standard. I helped create a lightweight internal guide that covered the most common UI patterns we used, like forms, dialogs, navigation, and data tables. Rather than turning it into a huge policy document, I focused on practical examples: what good markup looked like, how keyboard behavior should work, and what testing steps each team should run before review. I also added screenshots, code snippets, and short explanations of common failures, because people are more likely to use documentation that feels actionable. We paired that with a simple review checklist for design and engineering. The result was fewer back-and-forth cycles and better consistency across teams. What I learned from that experience is that documentation only helps if it is easy to find, easy to understand, and clearly connected to day-to-day work.
Question 10
Difficulty: easy
How do you stay current with accessibility best practices, browser changes, and evolving assistive technology support?
Sample answer
I treat accessibility as a field that requires ongoing learning, because browser behavior and assistive technology support do change over time. I keep up by reading implementation notes, following platform and browser release updates, and staying connected to accessibility communities where practitioners share real-world findings. I also like testing patterns myself when something new is introduced, because support can vary in ways that documentation doesn’t always capture. For example, a feature may work well in one browser and fail in another, or a screen reader may announce a state differently than expected. I find it useful to compare notes with other engineers and accessibility specialists, especially when there’s ambiguity around ARIA patterns or browser support. I also try to learn from end users whenever possible, because the most useful feedback often comes from how people actually navigate products in daily life. Staying current isn’t just about collecting information; it’s about validating what matters in practice and bringing that back into implementation decisions.
