Your colleague messed up everything with the inputs and labels.
Everything is not working as it should.
Radio buttons should only have one value.
Use the name developer for this.
You also need to properly bind labels to fields using the front, back and full identifiers.
This task is part of the Full-Stack JavaScript Course
If you have any issues with it, you can ask for community help below the post
Feel free to help others if you’ve already solved the task
index.html
<!DOCTYPE html>
<html>
<head>
<title>Dev profile</title>
</head>
<body>
<form>s
<label for="front" >Become Front-end developer</label>
<input id="back" type="radio" name="front">
<label for="back">Become Back-end developer</label>
<input type="radio" name="back">
</form>
</body>
</html>