Swift coding tests

Hiring Swift developers means looking for candidates with a good understanding of Swift syntax, the ability to navigate optionals and control flow, framework expertise, and knowledge of memory systems. They also need strong problem-solving skills, the ability to communicate effectively, and the willingness to stay current with evolutions in tech. 

You can measure all these skills and more using our library of over “400+” scientifically validated tests.

A universal coding test enables candidates to choose which of the available coding languages they’d like to use to solve a coding challenge (you pick the languages). This improves their experience while giving them a chance to showcase their ability to think critically, adapt, and problem-solve without being limited to a specific programming language. This way, you can find applicants with the general programming prowess you need. You also won’t limit your candidate pool to just Swift experts.

You can easily create a custom coding test with TestGorilla. Simply pick Swift as one of your coding languages of choice (you can select up to 20 languages for candidates to choose from). Then, create a detailed test question. This should include the instructions for the coding challenge that your candidates will see. It should also set out “test cases” – examples that demonstrate which inputs the code should handle, plus the expected outputs. This way, you can make sure candidates’ code meets your requirements.

TestGorilla’s individual Swift tests can last 10-35 minutes depending on the complexity of the test. However, you can combine up to five tests (including non-Swift tests like our Culture Add test) to create a longer assessment that evaluates candidates’ skills in various areas – from working with arrays to communication. 

Creating your own Swift coding challenge? You can customize the length by considering the amount of time to give for each question, the number of questions, and the types of questions.

You can create an assessment in less than ten minutes. Simply name the assessment, choose up to five tests (for example, our Entry-Level Algorithms test), answer a few short questions, and finalize the test. That said, creating custom questions and adding these to your assessment will take you a bit longer.

As part of a structured, skills-based hiring process, we recommend asking a standardized set of interview questions to all Swift developer candidates. This ensures consistency and helps you fairly assess each applicant’s technical skills, problem-solving abilities, and experience.

For entry-level Swift developers, you might ask foundational questions such as:

• What are optionals in Swift, and how do they work?

• How does memory management work in Swift?

For more experienced Swift developers, consider deeper technical questions like:

• Explain the difference between structs and classes in Swift. When would you use each?

• What is the purpose of the Combine framework, and how does it improve reactive programming in Swift?

Beyond technical skills, it’s also important to assess soft skills like communication, teamwork, and adaptability—especially for collaborative development environments. Pairing structured interview questions with Swift coding assessments can help you identify the best candidate for your team.