The single most important differentiator in technical recruiting is whether the firm’s recruiters specialize by discipline or cover everything generically. A firm that places software developers, cybersecurity analysts, data engineers, DevOps engineers, and IT support staff through the same pool of generalist recruiters cannot build the candidate relationships, technical screening capability, or market intelligence that any of those disciplines actually requires.

What to ask: “Who would be the recruiter for a senior data engineer with dbt and Snowflake experience? What’s their background in that specific area? How many data engineering placements have they made in the last six months in our market?”

The answer should include a specific person with a specific background. If the answer is “our team,” you’ve learned something useful.

Every agency claims speed. The honest timeline for a specific role in a specific market at your bill rate or salary band is a function of actual candidate availability, not marketing language. The difference between 10 business days and 30 business days to submit qualified candidates is material, and it varies significantly by role type, location, compensation, and whether the agency has genuine current pipeline vs. a database that hasn’t been refreshed.

What to ask: “For a senior [role] in [location] at approximately [compensation range], what’s your realistic time to first qualified submission? What’s been your actual average for similar roles in the last 90 days?”

An agency that consistently hedges on this question rather than giving a concrete answer may not know what their actual performance looks like.

Résumé says “Kubernetes.” Does the candidate actually know it at a depth that will pass your technical interview? A recruiter who can’t evaluate that question will submit candidates who can’t answer it in your hiring process, wasting your engineering team’s time on interviews that should never have happened.

What to ask: “Walk me through how you screen a senior DevOps engineer. What specifically do you verify? What questions do you ask? Do you use technical assessments? Who creates them and who evaluates the responses?”

Look for specificity and genuine technical content in the answer. “We have a rigorous screening process” is not an answer, it’s a claim. The actual process is what matters.

Every agency places candidates who turn out not to be the right fit occasionally. This is not, in itself, a disqualifying characteristic, it happens to the best agencies. What matters is how they handle it: how quickly they acknowledge the problem, how proactively they move to address it, and what their actual replacement timeline looks like.

What to ask: “Tell me about a situation where a placement didn’t work out for a client. How did you find out? What happened next? How long did it take to find a replacement?”

Agencies that deflect this question, claim they’ve never had this experience, or answer very generically are telling you something useful.

References from client organizations in similar industries, filling similar roles, with similar program contexts should be readily available from any agency that has been doing this for more than a year. Generic references from different industries or different role types are less useful than you’d hope.

What to ask: “Can you connect me with two or three clients you’ve supported on IT staffing in [your industry or a close parallel] in the past year? I’d like to specifically ask them about time to fill, candidate quality, and how they handled any placements that didn’t work.”

The willingness to provide specific references, and the quality of the references they provide, tells you more than the references’ content in many cases.

The strongest signal of a staffing partner who will genuinely serve your needs, rather than just process your requisitions, is the quality of questions they ask before and during the pitch.

Do they ask about your technology stack? Your team structure? Your program context? The definition of success in the role beyond the job description? The specific technical problems you’re trying to solve? Or do they mostly tell you about their capabilities and ask when you’d like to start?

An agency that doesn’t understand your actual context before they start sourcing will source to the job description rather than to your actual need. The resulting candidates will meet the written requirements while missing the factors that actually determine success in the role.

For organizations with cleared program requirements, security clearance expertise is non-negotiable. Does the agency understand the difference between clearance levels? Do they know how to verify claimed clearance status? Do they understand the timeline implications of new investigations vs. reinvestigations?

For organizations with co-employment concerns or large contingent workforces, compliance sophistication matters. How does the agency structure engagements to minimize co-employment risk? What does their worker classification approach look like?

After the pitch meeting, ask yourself: Did they make me feel like they understood my situation specifically, or did they make me feel like I was one of many client organizations getting the same presentation?

The agencies that genuinely understand technical recruiting in your domain ask better questions, give more specific answers, and acknowled, get uncertainty honestly rather than projecting universal confidence. Those are the agencies that deliver.

PDS has specialized in IT, engineering, and aerospace staffing since 1987. Our recruiters work within defined technical verticals, our screening is built for the roles we fill, and our long-term client relationships exist because we perform, not just because we pitch well.

Talk to our team and ask us the questions above. We’re happy to answer them directly.