1. Let me begin by saying that most of the reviews on Glassdoor are fake/deliberate/motivated. If your look through the most recent reviews, you will find them mostly similar, defensive of the company and belittling people who give bad reviews. This tells you something about the moral compass of the company who is ready to put in fake reviews to improve its perception.
2. The work life balance stuff that most mention is as true as you can imagine. During my time, I was repeatedly called dead in the night to look at some issue, which is fine if you are on call, but that's not the case. You get called for things like code reviews which can definitely be done in normal work hours and which wouldn't lead to any delay of deliverables. 15-16 hours workdays are a norm and meetings at 2-3 AM are not uncommon at all. Planning is abysmally bad and Scrum practices are not followed. They give unrealistic deadlines for huge goals and expect you to have a perfectly working code.
There is no focus on good engineering practices like Test case coverage, CI/CD etc and things are as ad-hoc as possible.
They try to convince you this is fine by saying company is in "Hyper Growth Phase" which is absolutely ridiculous. Growth is no excuse for unrealistic deadlines, bad planning and overworked team.
3. Pay-- Let me start by saying the pay is not even close to industry standard. On the top of it, they have the audacity to tell you that industry is paying way too much for your skillset and it is good that here, you can have the perfect salary for your skillset. They mention that Tekion compensates you by ESOPs but there is no buy-back option of these and you don't know when the company will IPO so they aren't much use.
3. Bonus: There is no yearly bonus, no gifts, no additional perks. All you have is your salary. Yearly compensation increase is dismal.
4. Work culture: Let me start by saying that the entire company culture is work hard and don't play. Even the HRs work on Saturdays and Sundays so you can imagine an engineer's condition.
Managers inherit the culture which they see from above and even belittle you when you tell them you can't work 15-18 hours a day by saying thats not how you would survive in this industry.
5. In the end I would advise to not be a part of the company with such shady tactics and bad culture. From my experience and my colleagues, more than 90% of the companies in the industry are way better than this. So if you have a choice between Tekion and something else, definitely tilt towards the other one even if the pay is higher at Tekion.