A technical interview platform is software for interviewing a software engineer over video, with a shared code editor in which the candidate and the interviewer both see and run the same code. It replaced the whiteboard interview in an office. Many such platforms also supply the interviewers themselves: a panel of experienced engineers who interview candidates for other companies. This is called interview as a service.
The platform has three main parts. The shared code editor runs the candidate's code in many programming languages, so the interviewer can watch it pass or fail. The video call is recorded and proctored, which means the platform checks that the candidate is alone and is not reading answers from another screen. The question bank holds problems sorted by skill and difficulty, so that every candidate for one role gets questions of the same level.
Why would a company let someone else interview its candidates? Interviewing is slow work. A senior engineer may spend one hour on each interview, plus time to write notes. A company hiring 20 engineers may need 150 first-round interviews.
Consider a software start-up in Jaipur with eight engineers. It needs three backend engineers, and 60 candidates have passed its coding assessment. Its own engineers cannot spare 60 hours. So it hands the first round to an interview platform. The platform matches each candidate with an engineer on its panel who knows the same technology. Each interview lasts 60 minutes. The candidate solves one coding problem in the shared editor and then explains how they would design a simple system, such as a booking service.
After each interview, the panel engineer fills in a structured scorecard. It gives a rating from 1 to 4 for each skill, such as coding, problem solving and system design. It also gives a final recommendation, with written evidence for each rating. The scorecards go into the start-up's applicant tracking system. The start-up's own engineers interview only the 9 candidates with the strongest scorecards, in the final round. They can also watch a recording of any first-round interview.
A structured scorecard also makes interviews fairer, because every candidate is judged on the same skills. Some platforms add interview intelligence, which transcribes and analyses each recorded interview. Colleges and students use similar tools for mock interviews before placements, often through a campus recruiting platform.