All of these signals are problematic. Your references are already vetted and testimonials left on a public profile, No one is going to give you a negative ref

All of these signals are problematic. Your references are already vetted and testimonials left on a public profile, No one is going to give you a negative reference on LinkedIn. That doesn’t provide any meaningful signal. Actual qualifications, like job training and certifications. Even Scrum Training. Certifications don’t prove competence. Anyone can memorize enough to pass a multiple choice test and there have been brain dumps for them for decades. I went through the 6 certification .Net “Architect” path back in 2010 basically as a guided learning path with a goal at the end. I knew even back then they were worthless as far as competence and never put them on my resume. More recently, at one point I had 9 of the then 12 AWS certs as late as 2021. I have 6 of the 9 current ones now and I’m working on the other 3 by the end of the year. I got my first one without ever opening the console in 2018. They also served as a guided learning path so I would know what I didn’t know and I could talk the talk. But I don’t consider myself knowing a service until I’ve used them. They are all very shallow marketing certs except I’ve heard good things about the Kubernetes certifications and that they require hands on problem solving. I want to know you were actually taught the right way at least once, by a reputable source How would you know that? I have a degree in CS. I graduated in 1996. Is the source I was taught COBOL and FORTRAN from “reputable” or “relevant”? A written contract that what you say is your experience is true, and that I can use arbitration to seek damages if you lied Arbitration is biased toward the client and the clients industry. The judges don’t get hired if they consistently make judgments that are against the industry that hires them. A standard set of tests administered by experts chosen at random. What I am looking for when hiring is specific to the company. But they have that already - leetCode style interviews that don’t give a signal to whether they are “smart and gets thing done”.