Boolean Search Strings: How to Surface Hidden Job Openings
A practical, step-by-step guide to building Boolean search strings and using job board filters to find openings that never show up in a standard keyword search.
Sponsored
Why Standard Job Searches Miss So Much
When you type “marketing manager” into a job board, you get whatever the algorithm decides is relevant, plus a flood of postings that used the same generic title. Meanwhile, a company might list the same role as “brand and communications lead” or bury it inside a corporate careers page that never syncs with Indeed or LinkedIn. You’re not missing these jobs because they don’t exist. You’re missing them because you’re searching the way everyone else searches.
Boolean operators fix this by letting you search like a recruiter does. Recruiters use these strings daily to find candidates on LinkedIn; you can flip the same logic around to find jobs instead of people. It takes maybe twenty extra minutes to build a good string, but it can cut hours off your weekly search once you have a few saved.
The Four Operators You Actually Need
You don’t need to memorize a computer science course. Four tools cover almost everything:
- Quotation marks force an exact phrase match. “Customer success manager” returns only that phrase, not pages where those three words appear scattered.
- AND (sometimes just a space, sometimes typed out) narrows results by requiring multiple terms. “Product manager” AND fintech pulls only listings that mention both.
- OR widens results by accepting synonyms. (“Product manager” OR “product lead” OR “product owner”) catches title variations companies use inconsistently.
- NOT or a minus sign (-) excludes terms. “Account manager” -insurance removes an entire industry cluttering your results.
Combine them in one string and you get something like: (“product manager” OR “product owner”) AND (fintech OR payments) NOT insurance. That single search does the filtering work of scrolling through fifteen pages of irrelevant listings.
Where to Actually Run These Searches
Google is your best tool for this, not the job boards themselves. Job board search bars often ignore Boolean logic entirely or only support part of it. Google respects all four operators reliably, and you can pair them with site-specific commands.
Try this structure: site:linkedin.com/jobs “data analyst” AND (Chicago OR remote) -senior. The site: command restricts results to one platform, so you’re essentially running a custom search inside LinkedIn’s job listings without depending on their internal filter, which often resets or ignores your prior selections.
You can do the same for company career pages once you’ve identified a shortlist of employers. Try: site:workday.com “supply chain” “Denver”. Many mid-size and large companies run their career pages on a handful of platforms — Workday, Greenhouse, Lever, iCIMS. Searching by platform (site:greenhouse.io or site:lever.co) surfaces postings across dozens of companies at once, including ones you’d never think to check individually.
Finding Unlisted or Under-the-Radar Openings
The real value of this method shows up when you go after roles that aren’t sitting on the major boards at all. Two tactics work well here.
First, search for the internal language companies use before a role goes public. Many organizations post to their own career page days or weeks before syndicating to Indeed or LinkedIn. A search like site:[companycareerpage].com “hiring” “2024” -intern (adjust the year) can catch postings still in that early window, when competition is lower because fewer people have seen them yet.
Second, target roles that get miscategorized. A operations role might be filed under “business,” “strategy,” or “logistics” depending on who wrote the posting. Build a string with every plausible title variant tied together with OR, then layer in your location or seniority requirement with AND. This is tedious the first time you do it for a new title, but you can save the string and reuse it weekly with only the date range changed.
Using Job Board Filters the Way They’re Actually Built
Boolean search covers the open web, but the boards themselves have underused filter combinations worth knowing.
On LinkedIn, use the “Date posted” filter set to “Past 24 hours” and check it daily rather than weekly. Postings get buried under newer ones fast, and applying within the first day or two measurably improves your odds of a response, since recruiters often review applications in the order they arrive.
On Indeed, the “Company” filter combined with a saved search lets you monitor a specific employer without manually checking their page every few days. Set up alerts for five to ten target companies rather than one broad keyword alert — broad alerts flood your inbox with noise you’ll eventually start ignoring.
Google for Jobs, the aggregator built into Google search results, pulls from smaller sites that never make it onto LinkedIn or Indeed at all, including niche industry boards and some direct employer postings. Search your role plus “jobs” (marketing coordinator jobs) and look for the box with a map pin icon above the standard results.
Building a Repeatable Weekly Routine
One search isn’t worth much. The advantage comes from running the same tightened strings on a schedule, since new postings appear constantly and older ones get buried within days.
Pick three to five Boolean strings that reflect your actual target roles and industries. Save them as bookmarks or in a simple spreadsheet with the string, the platform, and the date you last ran it. Spend fifteen minutes twice a week rerunning them rather than starting from scratch each time you sit down to search.
This approach won’t replace networking or direct outreach, and it won’t work if your target titles are too narrow to generate any results at all. But for surfacing the roles sitting outside the standard algorithm-driven feed, it’s a concrete method that costs you time up front and saves you far more of it later.
Remember: this guide is general information, not professional advice for your specific situation. For decisions with real stakes, check with a qualified professional.