Effective screening coding skills of candidates is a critical step in the technical hiring process across organizations. Some of the best ways in which hiring managers and recruiters can check the coding skills background of candidates are:
Conduct effective research on the needs of the job role and identify the skills and knowledge that would be needed for a candidate to be successful in the given job
Dig deep into the developers' portfolios to check their work in advance. Almost all good coders maintain a portfolio of their work and a glimpse of that can offer valuable insights about their knowledge, skills and abilities (KSA).
Screen through GitHub and StackOverflow repositories to skim through any open-source codes your potential candidate may have contributed in the past, their reputation in these platforms and their collaboration skills.
Run online hackathons and get a single-point platform to access a large pool of developer talent in one place.
Run coding assessments digitally to assess the coding skills of candidates in advance across a wide stack of technologies and programming languages
Conduct simulated role-based assessments to evaluate how a candidate would perform on real-life coding projects on the job
Consider using virtual live interview sessions using coding interview tools that help you interview a candidate's knowledge and skills and also conduct live programming sessions using whiteboards, chat boxes, pair programming, etc.