CoderPad.io is my go-to platform for technical interviews. It's perfect for evaluating candidates in real-time. What sets it apart is the ability to execute code within the system [and its ability to replay an interview], making the interview process and feedback / evaluation smoother. I've conducted 30 interviews spanning Python, Java, and Scala, and CoderPad.io has proven to be the ideal solution. Highly recommended for anyone involved in technical hiring.