10 Accessibility Development Interview Questions and Answers for ios engineers

flat art illustration of a ios engineer

1. What inspired you to specialize in accessibility development?

Since early on in my development career, I have been drawn towards creating inclusive and accessible experiences for users. One particular project stands out in my mind, where I was tasked with designing and developing a website for a local government agency. During user testing, we discovered that a significant portion of our target demographic was unable to interact with the current design due to inaccessible features. Seeing the impact that inaccessibility had on these users sparked a passion in me to specialize in accessibility development.

As a result, I poured my energy into learning about various accessibility techniques and keeping up-to-date with emerging accessibility technologies. I also began advocating for accessibility within the development community - sharing my findings, educating others, and collaborating with accessibility-focused organizations, ultimately leading to improving accessibility across multiple projects.

2. Could you describe your experience with accessible design patterns and techniques?

I have extensive experience with creating accessible design patterns and techniques that comply with WCAG 2.1 guidelines. In my previous role as a web developer for a large e-commerce company, I was responsible for implementing accessibility features that helped increase the overall user experience for people with disabilities.

For instance, I implemented keyboard navigation features on the website that allowed visually-impaired users to navigate using only the keyboard. This resulted in a 15% increase in overall website traffic from users with disabilities.

  1. Additionally, I utilized ARIA attributes to improve accessibility for screen readers. For example, I added alt tags to images, which assisted visually-impaired users to understand what an image represented. This, in turn, resulted in a 20% boost in the website's conversion rate from users with screen readers.
  2. I also ensured that the website's color contrast ratios met the WCAG 2.1 standards. This made the website more accessible to users with color blindness or low vision, which led to a 10% increase in engagement from these users.
  3. Another technique I utilized was to create an accessible form validation system. I implemented client-side validation and error messaging, which made it easier for people with disabilities to submit forms. This resulted in a 25% decrease in form submission errors.

Overall, my experience with accessible design patterns and techniques has allowed me to enhance the overall user experience for individuals with disabilities while also providing tangible benefits to the company, such as increased traffic, conversions, and decreased errors.

3. How do you ensure that the apps you develop are usable and accessible to all users, regardless of ability?

At the beginning of each project, I collaborate with stakeholders, designers, and developers to establish accessibility requirements and ensure that all components are optimized for accessibility. I conduct usability and accessibility tests with diverse participants, including those with disabilities, to identify any barriers or limitations.

  1. First, we implement semantic HTML and ARIA attributes to ensure that screen readers can accurately interpret and convey the purpose and structure of each component.
  2. Next, we use high contrast colors and provide alternative text for images to accommodate users with visual impairments.
  3. We also ensure that keyboard navigation is possible, and that all interactions can be performed with a keyboard, as many users rely solely on keyboard navigation.
  4. To improve clarity and readability, we use consistent and concise language, and employ simple and clear layouts.
  5. We also test our apps for compatibility with assistive technologies, such as screen readers or refreshable braille displays.

These efforts have ensured that our apps are well received and accessible to all users. In fact, after implementing these accessibility measures in a recent project, we received positive feedback from users with disabilities who praised the ease with which they could use the app. Additionally, our app passed a third-party accessibility audit with flying colors, further solidifying our commitment to accessible development.

4. What is your process for identifying and addressing accessibility issues in existing apps?

My process for identifying and addressing accessibility issues in existing apps involves a thorough evaluation of the app's user interface design, architecture, and codebase.

  1. First, I conduct an accessibility audit using automated testing tools such as Axe and Wave to identify common issues such as lacking alternative text for images and improper use of headings.

  2. Next, I manually test the app using assistive technologies such as screen readers and keyboard-only navigation to ensure that all functionality is available to individuals with disabilities.

  3. If any issues are found, I prioritize them based on severity and impact on user experience.

  4. Then, I collaborate with the development team to implement solutions such as adding appropriate ARIA attributes or updating code to follow WCAG guidelines.

  5. Finally, I conduct additional manual testing to verify that the issues have been resolved and that the app is accessible to individuals with disabilities.

Using this process, I was able to increase the accessibility score of an existing app from 50% to 90%, resulting in a much better experience for individuals with disabilities and improved compliance with accessibility laws.

5. What are some common accessibility challenges you have encountered in your work?

As a web developer, I have encountered several accessibility challenges in my work. One common challenge that I have seen is providing proper alt text for images. Alt text is important for people who are visually impaired and use screen readers to navigate web pages. In my previous project for a non-profit organization, I conducted a usability test and found that 60% of visually impaired users were unable to navigate the website due to missing or insufficient alt text.

  1. Another challenge that I have encountered is color contrast. Poor color contrast can make it difficult for people with color vision deficiencies to read text on a web page. In a recent project to redesign a popular news website, I implemented the WCAG 2.1 standards for color contrast and conducted a user survey. The feedback from users indicated a 75% increase in readability, which showed the positive impact of addressing color contrast issues.
  2. Navigation structure is another area where I have faced accessibility challenges. I worked on a project where the navigation menu was not labeled correctly, and it was difficult for screen reader users to understand the menu structure. I revised the menu structure and added ARIA attributes to make it clear and usable for screen reader users. After implementing these changes, user feedback showed a 90% increase in successful navigation among screen reader users.

These are just a few examples of accessibility challenges that I have encountered in my work. However, I believe that with proper planning, testing, and implementation of accessibility features, we can improve the usability of web content for all users.

6. Can you walk us through your experience with screen readers and VoiceOver in iOS development?

In my previous role as an iOS developer, I had the opportunity to work on a project that required high accessibility standards. As a result, I gained extensive experience with screen readers and VoiceOver in iOS development.

  1. One of my main achievements was implementing VoiceOver for an app that was previously not accessible. Users with visual impairments could not use it, but after implementing VoiceOver, the app received positive feedback from those users. It was great to see the positive impact that my work had on the app's overall accessibility.
  2. I also have experience with testing apps using VoiceOver. I have used the screen reader during various stages of development to make sure that the app is usable by individuals with different levels of vision. I can confidently say that my expertise in this area contributed to the high accessibility score achieved by the app when we tested it against the accessibility guidelines.
  3. In addition to VoiceOver in iOS development, I am also familiar with other accessibility tools such as TalkBack on Android and NVDA on Windows. This knowledge has allowed me to create cross-platform apps that are accessible to users with disabilities across different devices.
  4. Lastly, I have experience in creating custom VoiceOver commands for users with specific accessibility needs. I worked on a project where we needed to add a custom command for one of our users who had a particular type of visual impairment. We created a custom command that allowed the user to access the app's features more easily using a unique swipe gesture. The command was a success and the user was able to use the app without any difficulties.

Overall, my experience with screen readers and VoiceOver in iOS development has allowed me to develop apps that are more inclusive of a wider range of users. I am excited to bring this expertise to my next role and continue to make a positive impact in the realm of software accessibility.

7. What assistive technology have you worked with in your previous projects?

Throughout my previous projects, I have worked with a number of assistive technologies to help make websites and applications accessible to users with disabilities. One such technology is screen readers, which convert written text into spoken words for users who are blind or have low vision.

In a recent project, we implemented a number of improvements to make the site fully accessible, including optimizing the HTML to ensure logical page structure and labeling all form fields correctly. As a result, we saw a significant increase in the site's usability for users with disabilities. In fact, after just a few weeks, we saw a 30% increase in traffic from users with assistive technology.

  1. Screen readers
  2. Braille displays
  3. Voice recognition software

Aside from screen readers, I have also worked with Braille displays, which provide tactile feedback for users who are blind, and voice recognition software, which allows users who have difficulty typing or who are unable to use a mouse to navigate the site through voice commands.

Overall, my experience with assistive technology has shown me the importance of creating accessible websites and applications, and I am committed to continuing to prioritize accessibility in all of my future projects.

8. How do you stay up to date with the latest accessibility standards and guidelines?

As a developer, keeping up to date with the latest accessibility standards and guidelines is crucial to ensure that my work is inclusive and accessible to everyone. I stay updated on the latest developments by:

  1. Attending webinars and conferences focused on accessibility development.
  2. Reading blogs and articles related to accessibility development.
  3. Following key industry influencers and experts on social media platforms like Twitter and LinkedIn.
  4. Regularly checking the World Wide Web Consortium's (W3C) website for updated accessibility guidelines and standard updates.

One example of my dedication to staying informed and updated was when I attended the AbleCon conference in 2022. This conference is dedicated to accessibility in technology, and I attended multiple talks and workshops that focused on the latest accessibility standards and technologies. I gained valuable information on how to ensure that websites and applications are accessible to people with disabilities.

Additionally, I follow several accessibility experts on Twitter, such as WebAIM and the A11y Project. This has allowed me to keep up to date with the latest developments, like when WebAIM shared their 2022 Screen Reader User Survey. I was able to learn what screen reader users are currently using, which browser and operating system combinations are most popular, and how people with disabilities are using the web in general. This data has helped me design and create accessible applications that meet the needs of people with disabilities.

9. Can you describe how you work with designers and other developers to integrate accessibility into the app's overall design and functionality?

At my previous company, I worked closely with the design team to ensure that all wireframes and mockups were created with accessibility in mind. This allowed for a smoother integration process as we could detect any potential issues early on in the development process.

  1. During the development phase, I regularly collaborated with other developers in code reviews to ensure that accessibility guidelines were being met.
  2. In order to test the functionality and usability of the app for users with disabilities, I worked with testers who had disabilities to get feedback on the accessibility features.
  3. One example of a successful integration of accessibility features was in a mobile app we developed for a client. We incorporated features such as screen reader compatibility, large text options, and high contrast mode. These features were well-received by users and resulted in an increase in app downloads and positive reviews.

Overall, my approach to integrating accessibility into an app's overall design and functionality involves collaboration with designers and developers, regular code reviews, and testing with users with disabilities to ensure a positive user experience for all.

10. Could you give an example of a project where you had to implement a complex accessibility feature? What was the outcome?

Example project: Implementing a complex accessibility feature for an e-commerce website that had a large catalog of products.

  1. First step: Conducted a thorough analysis of the website and identified areas that required improvements. This included studying the website code, running accessibility testing tools, and reviewing user feedback.

  2. Second Step: Prioritized the identified issues based on their impact on users and the complexity of remediation. We divided the issues into three priority levels and tackled them in that order.

  3. Third Step: One of the key accessibility issues on the website was the lack of keyboard navigation for users. We implemented custom keyboard navigation using JavaScript to ensure that users could easily navigate through the website without physically using a mouse.

  4. Fourth Step: Another accessibility issue we faced was the lack of alternative text for product images. We solved this problem by running a script that analyzed and generated relevant alternative text for each of the product images on the website. This made the website more accessible for visually impaired users.

  5. Outcome: After we implemented the changes, we conducted a post-implementation accessibility test, which showed a significant improvement in website accessibility score. The website's score improved from 40% to 90%.

The user feedback after the changes were implemented was remarkable. We received positive feedback from visually impaired users, praising the custom keyboard navigation and alternative text features. We also saw a significant rise in user engagement, with more users spending longer periods on the website and the bounce rate decreasing to 23%, which was an improvement from 45% before the changes.


In conclusion, being prepared for an accessibility development interview will increase your chances of landing your dream job. Writing a cover letter might seem tedious, but it's an opportunity to showcase your personality and stand out from other applicants. Check out our guide on writing a captivating cover letter for iOS Engineers. Also, having an impressive CV is crucial when applying for a job. Our guide on writing a resume for iOS Engineers can help you create the perfect one that will catch the recruiter's eye. If you're ready to take the next step in your career, search for remote iOS engineer jobs on our job board. We have many exciting job openings waiting for talented developers like you. Don't wait; start your job search today!

Search for remote iOS engineer jobs by clicking here.

Looking for a remote tech job? Search our job board for 30,000+ remote jobs
Search Remote Jobs
Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or lior@remoterocketship.com