Job Search Tips

How to Research a Company Before an Interview (The Right Way)

Most candidates preparing for an interview do the same thing: read the company's About page, skim the LinkedIn profile, maybe check the overall Glassdoor rating. It feels thorough but it mostly isn't. The most useful information about what it's actually like to work somewhere isn't in the polished content a company publishes about itself. It's in what people say when they leave. Here's a company research method that most job seekers never think to use, and why it's one of the highest-signal things you can do before walking into an interview.

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The Insight: Job Postings and Exit Reviews Often Use the Same Language

Here's the pattern that surfaces once you start paying attention. These phrases often appear in job postings

  • "fast-paced environment,"
  • "wear many hats,"
  • "entrepreneurial culture,"
  • "high-impact role"

And they show up again in negative exit reviews, just without the positive framing.

Or,

"We move fast and wear many hats" in a job description.

"Constantly understaffed and expected to do three jobs" in a 2-star review.

Same reality, different spin.

This isn't a coincidence. Companies describe their culture the way they experience it internally, and that internal experience gets reflected in both the marketing copy and the honest departures. Once you start reading exit reviews before interviews, you'll start seeing the translation key everywhere.

Why Exit Reviews Specifically (Not Overall Ratings)

The overall Glassdoor rating is nearly useless for pre-interview research. A 3.8 out of 5 tells you almost nothing actionable. Companies with serious cultural problems often maintain decent aggregate scores because current employees (who have reasons to stay positive) outnumber or outreview departing ones.

Exit reviews are different. People who have already left have no incentive to protect the company's reputation. They're also writing with the benefit of hindsight; they know how the story ended, which gives their observations more weight than someone still in the middle of it.

What you're looking for isn't individual complaints. One angry review about a bad manager could be a personal conflict. What you're looking for is pattern repetition: the same issue surfacing across multiple reviews from different people at different times. When that happens, you're not reading someone's bad experience, you're reading the company's operating reality.

How to Use Glassdoor Exit Reviews as Interview Prep: A Step-by-Step Method

Step 1: Filter for the exits

On Glassdoor, focus on reviews by "Former Employee." Sort by most recent to see what's changed (or hasn't) over time. Don't start with the 1-star reviews, start with the 2 and 3-star ones. These tend to be the most nuanced: people who had genuinely mixed experiences and are trying to be fair, which makes their specific criticisms more credible.

Screenshot of a Glassdoor review for Amazon showing a 2-star rating. The review title reads "Poor compensation structure".
Recent Glassdoor review for Amazon

Step 2: Look for repetition, not severity

Read 15 to 20 reviews and take note of anything that appears more than twice; specific phrases, specific names, specific complaints about process, management style, or structure. You're pattern-matching, not scorekeeping.

Common patterns worth flagging:

  • The same manager or director mentioned negatively by multiple reviewers
  • Repeated references to lack of career growth or internal promotion
  • Consistent complaints about workload, hours, or understaffing
  • Multiple mentions of poor communication from leadership
  • Phrases like "great place to start but not to stay"

Step 3: Cross-reference with the job posting

Take the patterns you've identified and hold them up against the job description. Vague but positive-sounding language in a posting often maps directly to a specific complaint in the reviews. Build your own translation key:

Job Posting LanguagePossible Exit Review Translation
"Fast-paced environment"High turnover, understaffed, reactive culture
"Wear many hats"Poorly defined roles, scope creep, overwork
"Entrepreneurial mindset required"Limited process, inconsistent support
"High-impact role"High pressure, limited resources
"Collaborative culture"Decision-making unclear, too many stakeholders

This isn't cynicism, it's calibration. Some companies genuinely are fast-paced in a healthy way. The exit reviews will tell you which kind you're dealing with.

Step 4: Build your interview questions from what you find

This is where the research pays off directly. For each pattern you identified, build a question that lets the interviewer respond without signaling that you've done this research. You want honest answers, not defensive ones.

If reviews mention unclear career progression: "Can you walk me through how someone in this role typically grows over two to three years? Are there examples of people who've been promoted internally from this position?"

If reviews mention leadership communication problems: "How does the team typically stay aligned on priorities when things shift quickly? What does communication from senior leadership usually look like day to day?"

If reviews mention a specific manager: "What's your management style like when a team member is dealing with a heavier-than-usual workload?"

The goal is to give them an opening to either confirm the pattern (which is valuable information) or genuinely contradict it (also valuable). Either way, you're walking out with more signal than the candidate who asked about team culture in the abstract.

Step 5: Use what you find to make the go/no-go call before you apply

The most underused part of this method is the decision not to proceed. If every departing employee over a two-year period is pointing to the same structural problem like toxic leadership, constant reorganizations, chronic understaffing, that information is available to you before you invest time in interviews, before you get excited about an offer, before you end up six months into a job you already saw the warning signs for.

Turning down an application based on this research can feel overly cautious. It usually isn't. The patterns in exit reviews are often the most honest preview of what your day-to-day will actually look like.

Other Negative Sources Worth Using Before an Interview

Glassdoor exit reviews are the most reliable single source, but they're not the only one worth checking.

  • LinkedIn employee tenure data: Look up the company on LinkedIn and filter employees by department. If the average tenure in the team you'd be joining is 14 months, that's a data point. If several people in that role left within a year and moved to competitors, that's a pattern.
  • The "Interview Experience" section on Glassdoor: This section shows you how candidates describe the interview process, whether it was disorganized, whether offers were made and rescinded, whether the process was transparent. It's also useful for calibrating what to expect in your own interview.
  • Reddit: Search the company name in subreddits like r/cscareerquestions, r/jobs, or industry-specific communities. Reddit tends to surface very specific, unfiltered accounts of what working somewhere is actually like, including things that wouldn't make it into a formal review.
  • The company's own job posting history: Search the job title on LinkedIn or Indeed and look at how long the role has been posted and whether it's been reposted recently. A role that's been open for six months, or one that was posted, removed, and reposted, is worth asking about directly.

What to Do With Red Flags You Find

Finding red flags in your research doesn't automatically mean you should withdraw. It means you should go into the interview with specific questions and pay close attention to how they're answered.

There's a difference between a company that has resolved a past problem and one that's still in the middle of it. If the exit reviews are from three or four years ago and more recent employees are describing a different experience, the pattern may have shifted. If the complaints are consistent through last month, they probably haven't.

The other thing to watch for in the interview itself: how does the interviewer respond when you ask about challenges? Someone who answers with specificity and honesty like: "we've had some turnover in this team and here's what we've learned from it", is a fundamentally different signal than someone who gets vague, defensive, or pivots immediately to positives.

Honestly confronting known issues is a green flag. Performing surprise at the existence of challenges is a red one.

How This Connects to Your Interview Performance

There's a secondary benefit to doing this research that goes beyond red-flag detection: it makes you a noticeably better interviewer.

Candidates who ask specific, informed questions about real organizational dynamics stand out immediately from candidates who ask generic questions about culture and next steps. It signals genuine interest, intellectual seriousness, and the kind of due diligence that good hires do.

It also puts you in a more confident position in the room. When you know what the real challenges are, you're not hoping the company turns out to be a good fit, you're actively evaluating whether it is. That shift in posture is perceptible, and interviewers respond well to it.

Connecting the dots: The way you close an interview matters just as much as your preparation going in. Once you've surfaced concerns through your research, the best way to address them directly is with a strong closing question . See our guide on the best question to ask at the end of every interview.

Frequently Asked Questions

What Does This Mean For You?

The most useful information about what it's like to work somewhere is written by people who already know how the story ends. Exit reviews exist, they're specific, and most of the candidates you're competing against aren't reading them carefully.

Spend an hour before your next interview reading through the exits. Build your questions from what you find. Walk in knowing what the real challenges are instead of hoping they don't exist.

The worst outcome is you turn down a role that had serious warning signs. That's not a bad outcome.

Filed UnderJob Search Tips
Helen Burton

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Helen Burton

Expert career advisor helping job seekers land their dream roles through strategic applications and personalized guidance.

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