Short answer: sometimes yes, sometimes no, and the wrong choice in either direction costs you.
A summary section done right is a 2–3 line brief that tells a recruiter exactly who you are and what you bring — before they have to dig for it. A summary section done wrong is the most valuable real estate on your resume wasted on filler that says nothing.
Here's how to know which situation you're in.
When a summary section earns its space
You're changing fields or industries.
If your title and most recent job don't immediately signal relevance to the role you're applying for, a summary gives you a bridge. It's your chance to say: here's what I've done, here's how it connects to what you need, here's why that's not as big a leap as it looks on paper.
When I moved from active law enforcement and campus security into security contract management, my title changed but my core skills didn't. A summary let me frame that transition instead of hoping a recruiter would make the connection on their own.
You have a combination of experience that doesn't fit a single bucket.
If your background spans multiple relevant areas — say, security operations and compliance oversight and team leadership — a summary can tie those threads together in one place. Without it, a recruiter skimming your bullets might not connect the dots.
You're a senior professional and context matters.
At a certain level, a two-line frame at the top saves the recruiter time and shows you understand the role you're going for. "10-year security operations leader specializing in multi-site contract management and compliance" tells me immediately that you're not entry-level and not a generalist. That's useful.
When a summary section wastes space
Your experience speaks clearly on its own.
If your most recent title is a direct match for the role you're applying to — same industry, same level, recent dates — a summary is redundant. The recruiter can see it. You don't need to narrate it.
Every line on a resume costs you space. A summary that repeats what your first two bullets already communicate is dead weight.
You're going to write something generic.
This is the real risk. I've seen thousands of resumes. The most common summary section in existence looks like this:
*Motivated and results-driven professional with extensive experience seeking to leverage skills in a dynamic environment where I can contribute to organizational growth.*
That sentence says nothing. It could be on any resume, for any job, from any person. It doesn't help you — it actually hurts you, because it signals that you didn't think carefully about this application.
If you can't write a summary that is specific to you and relevant to this role, don't write one at all.
You're tight on space.
One page is still the standard for most roles unless you have 15+ years of dense experience. If adding a summary pushes a strong, specific bullet off the page, cut the summary. The bullet is evidence. The summary is commentary. Evidence wins.
What a strong summary actually looks like
It's three things in two or three sentences: what you do, at what level, and what makes you specifically valuable for this role.
Here's a real example from my own resume:
*Security and law-enforcement professional with 10+ years of experience in contract management, campus security leadership, emergency management, and sworn policing. Skilled in multi-site security operations, access control administration, incident response, risk assessment, and compliance oversight.*
Notice what it does: it names the specific domains (contract management, campus security, emergency management, policing), the specific skills (multi-site operations, access control, incident response), and the level (10+ years, director-level implied). There's no filler. Every word is pulling weight.
The test before you keep it
Read your summary. Then ask: could this sentence appear on someone else's resume?
If yes, rewrite it until the answer is no.
A summary section that couldn't belong to anyone but you is worth keeping. Everything else is taking up space your bullets need.