Welcome to the LSI Resume blog
A short introduction to what we'll publish here — long-form posts on ATS mechanics, resume optimization for specific roles, and the science behind why most resume advice on the internet is wrong.
Welcome to the LSI Resume blog. We built the free ATS resume checker because the existing ones — JobScan, Resume Worded, TopResume — all do roughly the same thing: take your money, give you a score, hide what they actually checked behind a paywall. We thought the candidate deserved better — so we built a free tool with no signup gate, and this blog to write candidly about how ATS systems actually work and what candidates can do about it.
What we'll publish
Three categories of posts, in roughly equal proportion:
ATS mechanics. Detailed pieces on how each major ATS engine (Workday, Greenhouse, Lever, Taleo, iCIMS) parses your resume, what they weight, and how they differ. Most ATS posts on the internet are 800 words of generic advice; ours go to the technical detail level — actual regex anchors, real failure modes, reproducible examples.
Role-specific optimization. Deep dives per role: how a senior PM resume differs from a senior data scientist resume, what each one's keyword universe looks like in 2026, what conventions have changed in the last 5 years. Each post pairs with one of our curated keyword lists by role.
Recruiter behavior, honestly described. What recruiters actually do in their first 6 seconds with your resume — based on eye-tracking studies, not vibes. What patterns get rejected before any human reads a word. Which polish problems are recoverable and which are not.
Why a blog?
Two reasons.
The first is honest: this is content marketing. We sell a $400 done-for-you resume rewrite service. People who land on a blog post about "what Workday actually does with your resume" might also be in the market for someone to do the optimization for them.
The second is more interesting: there's a lot of bad resume advice on the internet. "Use action verbs." "Quantify your achievements." "Tailor for the job." This is all true and all useless — every recruiter knows it, every candidate has heard it, and following it doesn't move the needle. The actually-useful advice is much more specific to engine, role and context, and almost nobody publishes it because it doesn't generalize. We can publish it because we built the analyzer — we have the data on what actually moves the score, and we can write about it.
What's next
The first batch of posts will go up over the next few weeks. If you want to suggest a topic — a specific ATS engine, a role we haven't covered, a recruiter behavior you want explained — the contact form is at the parent site.
In the meantime, the analyzer is free and runs in your browser. Drop your PDF; see exactly which of these issues affect your specific resume.
Test your own resume against everything in this post
The free analyzer runs in your browser, simulates 5 ATS engines, and surfaces every issue with a snippet + fix. No signup, fully private.