An agency recruiter and an in-house company recruiter both want to place candidates. That's about where the similarity ends. They're reading your resume for different signals, working against different volumes, and making different decisions with it.

If you're sending the same resume to both, you're either over-specifying it for agency work or under-specifying it for the in-house pipeline. This post is about the difference and how to tailor for each.

What each one is actually doing

An agency recruiter is a third party paid by the hiring company on placement. Their incentive is to place candidates — any qualified candidate, into any of their open requisitions. They're scanning 60-120 resumes a day across multiple roles, and they're looking for "placeable" candidates whose keywords match enough of their inventory that they can be shopped to several reqs.

An in-house recruiter works for the hiring company. They own a specific set of roles. Their volume per role is lower, maybe 20-40 resumes per day per req, and they're matching to that specific job description. Their incentive is to surface the best matches for that role, not to find generally placeable candidates.

The implication for tailoring is real. The agency recruiter wants enough breadth in your keywords that they can map you to multiple openings — "this person could fit our Snowflake req, the dbt role, and the senior data engineer at the late-stage startup." The in-house recruiter wants specificity to their role — "this person has worked on exactly the kind of system we're building."

The agency recruiter is also going to re-format your resume into their template before passing it to the client. That's standard. If your PDF is heavily designed and not editable, they'll either spend time re-creating it (mild annoyance) or send the client a stripped-down version that doesn't represent you well (worse). For agencies, a clean editable Word version helps.

Who fits which channel

Whether to use agencies at all depends on where you sit on two axes: seniority and industry niche.

Senior + niche is where agencies earn their value. If you're a senior engineering manager in FinTech, the population of relevant buyers is small and the agency probably knows half of them by name. One strong relationship with the right specialist agency can outperform a hundred direct applications. Tailor a specialty version of your resume specifically for that agency to shop.

Senior + broad is the mixed case. Agencies can help, but you should also be applying directly. Be specific with the agency about which companies they can submit you to. The worst case is they "submit" you to a company you'd been planning to approach directly — once your name is in via the agency, the company won't talk to you direct, and you've lost the option.

Early-career + niche rarely benefits from agencies for permanent work. The placement fee makes you expensive relative to the value you're delivering, and most early-career niche roles are filled in-house. Agencies are more useful here for contract or temp-to-perm work.

Early-career + broad should mostly skip the agency route. Direct applications, LinkedIn presence, and personal networking outperform. And be alert for predatory "staffing" firms that ask for fees from candidates — never pay an agency to be placed.

The keyword shift in practice

Concretely, the difference between an agency-shopped resume and an in-house-tailored one is about a third of the keywords. The core technical and role-defining vocabulary is shared — the data-engineering version of you owns "Python," "stakeholder management," "cross-functional" in both versions.

The agency version expands on industry and stage signals: "FinTech," "Series B/C," "remote-first." These help the agency map you to a wider set of their openings. The in-house version drops these in favor of role-specific detail: "Snowflake," "dbt models," "led 4 engineers" — the specifics that prove you've done this exact kind of work.

For the underlying mechanics of tailoring keywords, see ats-keywords-vs-recruiter-keywords and tailor-resume-to-job-description.

The conversations before submission

The pre-submission conversation differs too. An agency recruiter will want a comp range before submitting you anywhere. This isn't a trick — they're calibrating which of their reqs are even worth presenting to you. Give a real range, framed as the floor of what you'd accept and a realistic ceiling.

An in-house recruiter usually saves the comp conversation for the phone screen. If you volunteer it on the application, fine, but don't push it; some companies have policies against pre-screen comp discussions.

The "which companies can you submit me to" conversation is the one most candidates skip with agencies and shouldn't. Be explicit: name the companies you've already applied to, name the companies you'd want to approach directly, and confirm with the agency that they'll only submit you to companies on their list, with your sign-off before each submission. This prevents the double-submission problem that can disqualify you from a job you actually wanted.

When the agency version backfires

The trap of the agency-shopped resume is that it's too broad. A resume designed to match six different reqs sometimes matches none of them well. If you're going through an agency, the right move is to send them your master version and a one-page summary of what you'd ideally be placed in — then let them tailor toward that, not toward maximum breadth.

If the agency keeps sending you to roles that don't fit, that's a real signal. Either the relationship isn't right or they're running a volume game rather than a fit game. Drop them; the time you're spending on bad calls is time you could be applying direct.

What this isn't

A few clarifications:

• It's not a recommendation against agencies. For the right candidates in the right markets, they save real time. Just go in with eyes open.
• It's not the same as an executive search. Retained executive search (Heidrick, Spencer Stuart, etc.) is its own animal — different incentives, much smaller candidate pools, longer cycles.
• It's not "you need two resumes." The structure stays the same. The keyword choices and the bullet emphasis shift.

The short version: agency recruiters scan for breadth and placeability; in-house recruiters scan for fit to a specific role. Send agencies an editable, slightly broader version. Send in-house teams a tighter, more role-specific one. The keyword overlap is real but partial.