Hire engineers on what they can do.
Ready-made technical tests at four levels, plus AI interviews that probe the gaps a test shows.
Free to start. No card.
Go- Levels
- Junior to Staff
- Question types
- MCQ, code reading, debugging, coding
- Code languages
- 10, incl. Python, JS, Go, Java
- Take-home
- None. It's in the browser
- Library
- 1056 ready-made tests
The problem
With Winkle
The problem
Buzzword CVs
Every CV lists the same frameworks.
Code reading, debugging and coding questions show real ability.
The problem
Take-homes take forever
Days of work for candidates, hours of review for you.
A timed test in the browser, scored as they finish.
The problem
Seniority is fuzzy
A title says little about the level someone actually works at.
Four levels, Junior to Staff, each with its own questions.
How it works in Winkle.
- 01
Pick the skill and level
From Junior to Staff, for the language or tool you hire for.
- 02
Review the questions
Multiple choice, code reading, debugging and coding, all editable.
- 03
Candidates take it
In the browser, timed, with a code editor for coding questions.
- 04
Scored with reasons
Written and code answers scored against a rubric, reasons shown.
- 05
Interview the gaps
Follow up with an AI interview on what the test showed.
Ten languages. One editor.
Set a coding question in the language the job uses. Candidates write it in the browser, with nothing to install. Pick one to see where they start.
The starter each candidate opens on, in each language.
A level is a different question.
Junior to Staff, each with its own questions, so a senior test isn’t a junior one with a harder timer.
Junior · measures
Reads code and gets the basics right
Code output
What does this print? A loop appends to a slice inside a function.
Illustrative questions. Each level has its own set.
Test first. Then interview the gap.
What the test proved doesn’t need asking again. The interview guide skips it and writes its questions for what’s still unknown.
From the test
Proven
Not shown yet
The interview guide
Skip, already proven: Go, SQL, APIs
For Concurrency
Walk me through how you'd stop a worker pool leaking goroutines.
For Edge cases
Your merge function gets an empty list. What happens, and what should?
Illustrative. The guide reads the candidate’s verified skills.
What you get.
Code questions
Code reading, debugging and writing code in 10 languages, in a browser editor.
Four levels
Junior, Mid, Senior and Staff, each with its own questions.
Rubric scoring
Every answer scored against a rubric, with the reasoning shown.
Interview next
Probe the weak spots in a follow-up AI interview.
Which languages are covered?
The public test library lists every skill and level available today. Browse it before you sign up, or have a test drafted for any other stack.
What does the follow-up interview ask?
The interview guide reads which skills the candidate has already proven and which are still unknown. It skips the proven ones and writes its questions for the gaps.
How are coding answers scored?
Against the question's rubric, with the reasoning shown, so you can see why a solution scored as it did.
Start with this, free.
Ready-made technical tests at four levels, plus AI interviews that probe the gaps a test shows.
Free to start. No card.