How Tier4 Group Cut 38% of Fraudulent Applications With Alex

The Customer

Tier4 Group is one of the fastest-growing IT recruiting and executive search firms in the US. Founded and led by Betsy Robinson, the company grew 45% in the last year and maintains an NPS score of 96, compared to a staffing industry average in the 20s. That kind of result doesn't happen by accident. It happens by hiring amazing recruiters and pairing them with technology built to scale.

"I don't think we could have grown as fast as we grew last year without having the technology like Alex."

Betsy Robinson, Founder & CEO, Tier4 Group

The Challenge

Recruiting has a math problem. The average recruiter can only review about 200 resumes a day, but a single open role at Tier4 might pull hundreds of inbound applications in the first 24 hours. As demand grew, the team hit a hard human-bandwidth ceiling. The gap that widened most was candidate experience. On top of that, roughly 38% of inbound applications turned out to be fraudulent or fake, meaning recruiters were spending real time on candidates who weren't real.

The Solution

Tier4 integrated Alex, their AI recruiter, as the first step in every hiring process. Every inbound candidate completes a digital interview before reaching a human recruiter, with full transparency provided via a dedicated landing page. Alex works 24/7, screening thousands of applications, catching fraudulent ones immediately (roughly 38% of inbound), and delivering scored, ranked top-five shortlists to recruiters every morning. This frees recruiters to focus on relationship-building and value-based conversations with the strongest candidates.

"Where we started and where we are now is light and day. Not necessarily doing more with less, but doing more with who we have."
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‍Betsy Robinson

The Results

The impact is seen in recruiter efficiency. For a recent role, recruiter Carly received over 500 applicants in 24 hours and had a scored top-five shortlist waiting the next morning. The hire was made in a single day by one recruiter, a task that previously took multiple recruiters a full week. This leverage, supported by AI screening at scale, is foundational to Tier4's 45% growth and 96 NPS. It eliminates bottlenecks and redirects recruiter time from initial screens to high-value relationship-building.

What's Next

For Tier4, Alex isn't a tool. It's a multiplier. As inbound volume grows and fraudulent applications keep climbing, having Alex run the first step of every hire means the team can keep scaling without adding headcount for top-of-funnel work. Recruiters get to do what only humans can do: build relationships, ask the value-based questions, and tell each candidate's story to clients.

"If we can just embrace AI, then use your ability as a human to do all of the other high-value tasks, that's gonna drive your business forward."

‍Betsy Robinson

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