Internal referrals remain one of the most reliable ways to get a resume noticed, since most companies route referred candidates to a recruiter directly instead of letting them sit in an applicant tracking queue with hundreds of others. The problem is that most advice on getting a referral assumes you already know someone on the inside. If you don't, the process looks different, but it's still very doable.
Before reaching out to someone you've never met, check for weak ties: alumni from your college, former colleagues who moved to that company, or people in industry-specific groups on LinkedIn. Use LinkedIn's alumni tool (visit the company page, click "Alumni" under the About tab filtered by your school) to surface people who share your educational background. A shared college or even a shared former employer gives you a legitimate, non-awkward reason to reach out.
Cold outreach fails when it opens with "Can you refer me?" Lead instead with a specific, genuine question about their role or the team's work — something that shows you've actually looked at what they do. A message like "I noticed you moved from data analytics to product at [Company] — I'm exploring a similar transition and would value 15 minutes of your perspective" gets a far higher response rate than a direct ask, because it doesn't put the other person on the spot before they've decided whether they want to help you.
If they agree to talk, use the time to ask about the team, the hiring manager, and what the role actually involves day to day. Only near the end, once there's some rapport, ask whether they'd be comfortable referring you if a relevant opening comes up — and make it easy to say yes by sending your resume and a short note they can forward with minimal effort on their part.
A referral improves your odds; it isn't a prerequisite. If outreach doesn't produce one within a reasonable window, apply directly and keep building the relationship in parallel — recruiters do sometimes attach a late referral to an application already in process. The goal of all this isn't to game the system, it's to get a real person who can vouch for your interest and fit, which tends to matter more the smaller or more competitive the applicant pool is for that specific role.