Not unlike codementor, though the landing page maybe has a bit different value proposition. There they offer mentoring, this one looks more like specialized pro

Not unlike codementor, though the landing page maybe has a bit different value proposition. There they offer mentoring, this one looks more like specialized problem solving. But, of course, the two overlap strongly. E.g. on codementor quite a few of my sesssions were about looking into and helping to solve specific issues. Those are actually pretty high adrenaline situations, at least in the beginning, because you only have a few minutes to grasp what's going. Or at least it feels like so and at least you need to start showing signs of understanding the problem. It was pretty fun (and stressful, in a positive way) in the beginning.