Mettl has some excellent coding simulators to assess the practical knowledge of coders across various languages including Java, C#, Javascript, HTML etc. The coding assessment along with the Remote Proctoring Feature would help you reach maximum number of candidates as they can give the assessments from any location. This in turn would save your time and cost of logistics. You can easily filter out the candidates with best skill potential. Here is the link to one of those portals. Online Assessments Software for Recruitment, Training, Contests, Exams, Test Preparation