Product Live Tech Interview / Live Coding

Turn interviews into hands-on sessions

Run more effective live coding and whiteboard technical interviews. Understand how candidates think and solve problems.

Live
Live coding — Senior Backend Engineer
SR
DK
AL
00:31:04
End session
Question 2 of 3
Rate limiter middleware
Implement a sliding-window rate limiter for the API gateway.
From template library
Backend · System design
Data structures · Warm-upDone
Debugging · Follow-upUp next
Integrity monitor
Active
Copy/paste trackingClear
Tab focus monitorClear
AI-code detectionClear
rate_limiter.py
2 editing
Python 3.12
1import time
2from collections import deque
3
4class RateLimiter:
5 def __init__(self, limit, window):
6 self.limit = limit
7 self.window = window
8 self.hits = {}
9
10 def allow(self, key, now=None):
11 return len(q) <= self.limitSofia · candidate
12
13# What about burst traffic at the window edge?Daniel · interviewer
All tests passing 4/4 · 0.8s
RUN
Scorecard
Shared live
Problem solving4/5
Code quality5/5
Communication4/5
No cheating detected
Plagiarism · paste events · AI-generated code
Why switch

Memorized algorithms don't show who delivers

On day one, a senior engineer opens the editor with an AI assistant, picks up a vague ticket, generates the scaffolding, reviews what the AI produced and writes the hard parts. A technical interview needs to test exactly that.

Traditional technical interview
Live Interview on Coodesh
Implement from memory an algorithm AI writes in seconds.
Real problems, with or without AI, as you define for the role.
One senior engineer hour for every candidate.
An async technical screen filters first; live, only finalists.
Every interviewer scores differently.
A scorecard with criteria and weights set before the conversation.
Nobody sees tab switches or pasted code.
Integrity signals running in the background.
Test in one tool, interview in another.
Test and interview on the same platform, with the same record.
How it works

From technical screen to decision, on one platform

1

Filter with the technical screen

Quizzes, coding challenges graded by unit tests and projects, applied to every candidate. The async step does the heavy lifting and frees your engineers to interview only people who have shown they can do the work.

2

Interview the people who passed, live

Live coding or whiteboard with questions from the library or your own. You follow the candidate in real time as they code and explain their decisions, with the integrity monitor running in the background.

3

Score on the scorecard and decide

Criteria and weights are set before the interview. The reviewer arrives with the reading done, confirms or adjusts the score and adds comments. Two different reviewers use the same yardstick, and the decision stays with people.

Features

Everything a technical interview needs

Live coding

The candidate codes in real time while the interviewer follows along.

Whiteboard

System and architecture design for roles that need depth.

Library questions

Use ready-made templates by topic or write your own questions.

Shared scorecard

Criteria and weights set up front, filled in during the conversation.

Integrity monitor

Copy-paste, tab focus and AI-generated code, in the background.

Automatic review

For open-ended steps, the platform scores each criterion and points to evidence.

Same identity

A photo at the start and periodic snapshots to compare the candidate across steps.

Test and interview together

Same assessment or chained assessments, with no new tool for the candidate.

English, Spanish, Portuguese

Set up the assessment in English, Spanish or Portuguese.

AI fluency

Assess who can work with AI, not who pretends it doesn't exist

Developers use coding assistants on the job. The useful question now is whether the person knows how to prompt, review, fix and explain what the AI delivered. On Coodesh, you decide per assessment whether AI use is allowed and write the criteria accordingly.

  • Quality of the final solution.
  • Ability to justify decisions in the conversation with the interviewer.
  • Spotting errors in generated code.
  • Critical thinking on a real-world problem.
Integrity

Focus on the conversation, not on policing

Integrity monitoring runs passively and alerts you when it finds meaningful clusters of suspicious activity.

Tab and window changes

Alerts for tab switches and frequent window resizing.

Pasted code

Copy and paste of code is logged during the session.

Multiple monitors

A signal when the candidate uses more than one screen.

Third-party tools

Alerts for help from outside tools, even those that claim to be invisible.

Continuous identity

A photo at the start and periodic webcam snapshots, flagging an absent face, more than one person or a different person.

Languages

The main programming languages, across 30+ careers

From frontend and backend to data and DevOps. If your stack isn't in the library, create your own question or ask the Coodesh team.

Languages

Coding questions in the languages your team uses.

Python
JavaScript
TypeScript
Java
C#
Go
Kotlin
Swift
PHP
C/C++
SQL
and more
1M+
talents already assessed on the platform
4x
faster to identify qualified talent
99%
assessment accuracy
70%+
less time spent on hiring processes

All your favorite tools, connected

Our ecosystem of deep integrations makes it easy to streamline your technical hiring processes.

SólidesAlura para EmpresasLinkedInUdemyGithubGreenhouseExcelInHireRecrutaiGupy

Frequently Asked Questions

A technical interview is the step where the company watches the person solve a real technology problem instead of just talking about their experience. A good technical interview assesses four things: reasoning (how the person breaks the problem down), code (quality, organization and technical choices), communication (how they explain decisions and trade-offs) and architectural depth when the role requires it. On Coodesh, these four areas can be covered in a single assessment, combining hands-on coding questions, a whiteboard for system design and answers by video, audio or a conversation with an AI interviewer.

In live coding, an engineer from the company follows the candidate in real time while they code. In an async interview, the candidate solves the problem in their own time within a set window, and the evaluation happens afterwards based on what was submitted and recorded. Live coding gives more signal on how the person thinks under pressure and costs one senior engineer hour per candidate. Async scales to dozens of candidates and frees the technical team to interview only finalists. Coodesh is designed so the async step does the heavy lifting of technical screening, and the human conversation happens with people who have already shown they can do the work.

By making it a criterion instead of pretending AI doesn't exist. Developers use coding assistants on the job, so the useful question is no longer whether they can code without help but whether they know how to prompt, review, fix and explain what the AI delivered. On Coodesh, the company decides per assessment whether AI use is allowed and writes the criteria accordingly: quality of the final solution, ability to justify decisions in the video explanation or the conversation with the interviewer, and spotting errors in the code.

With evaluation criteria (a scorecard) defined before the interview and automatic review applied to them. For each open question, the company writes weighted criteria; the platform scores each criterion, generates a summary and points to evidence in the candidate's submission. The human reviewer arrives with the reading done: they confirm, adjust the score where they disagree and add comments. What used to take 40 minutes of review per candidate takes a few minutes, and two different reviewers use the same yardstick. The decision stays with the person.

Integrity signals notify interviewers when the system detects meaningful clusters of suspicious candidate activity, such as repeated copy-paste, frequent window resizing and tab switching. Coodesh alerts interviewers to tab switches, copying and pasting code, multiple monitors and help from any third-party tools, even those that claim to be invisible. Integrity monitoring runs passively in the background, so interviewers stay focused on the conversation instead of policing behavior.

With photo ID and a continuous record. Coodesh lets you require a photo of the candidate at the start of each assessment and periodic webcam snapshots throughout, with automatic analysis that flags an absent face, more than one person or a change of person. Because the technical test and the technical interview live on the same platform, the reviewer can compare the record of each step for the same candidate without another tool.

The technical screening test is objective and scales: quizzes, coding challenges graded by unit tests and projects, applied to every candidate to filter who has the required foundation. The technical interview is open-ended and deep: free-form coding without automated tests, whiteboard and real-time explanation, applied to those who passed the screen to observe reasoning, communication and decisions. Both live in the same assessment or in chained assessments, with the same integrity features, and the candidate doesn't have to learn a new tool between steps.

Most hiring processes still ask candidates to implement an algorithm, testing memorization of algorithms that AI can generate in seconds. On day one, a senior engineer opens VS Code with Copilot or Claude, picks up a vague Jira ticket, uses AI to create the basic structure, critically reviews what the AI produced, finds where it's wrong or incomplete and writes the most complex parts on their own. Coodesh was built to test exactly these skills: AI fluency, code quality, critical thinking and real-world problem solving, in an environment that mirrors how developers actually work.

Coodesh coding questions cover the main languages on the market, such as Python, JavaScript, TypeScript, Java, C#, Go, Kotlin, Swift, PHP and C/C++, among others, and the library maps more than 30 careers, from frontend and backend to data and DevOps. The assessment can be set up in Portuguese, English or Spanish, so you can use the same process for roles in Brazil, Latin America and beyond. If you need a stack or scenario that isn't in the library, you can create your own question or ask the Coodesh team.

Interview only people who have already shown they can do the work

Create your free account and run your first technical screen with one of your real roles.

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