How CtrlS streamlined high-volume campus hiring with role-specific assessments

CtrlS Datacenters is India's largest Tier-4 data-center operator. In 2026 it raised roughly ₹7,000 crore at a $4.8 billion valuation and set a target of 4GW of capacity by 2031, with new campuses breaking ground from Hyderabad to Bhopal. Building at that pace means hiring engineers at that pace, and most of that talent comes straight from campus.

Hiring engineers across dozens of campus drives

CtrlS hires graduate engineers across electrical, mechanical, civil, electronics, instrumentation, and computer science disciplines for its data center and cloud infrastructure business. Running campus recruitment across multiple colleges meant comparing candidates from different universities, curricula, and interview panels. The team needed one consistent way to evaluate technical knowledge regardless of where a candidate studied.

One reusable assessment framework

Instead of creating a new assessment for every hiring drive, CtrlS built a reusable assessment library inside Testlify. The team created 331 custom assessments covering engineering aptitude, discipline-specific technical knowledge, and role-based hiring requirements across multiple engineering streams. Recruiters could launch new campus drives using existing templates instead of rebuilding assessments from scratch, making hiring faster while keeping evaluation consistent.

Consistent hiring at campus scale

The program invited 9,135 candidates, with 8,460 completing their assessments, resulting in a 93% completion rate. Candidates submitted more than 470,000 responses across the assessment program, allowing recruiters to compare graduates from multiple campuses using the same evaluation standard. Instead of relying on college-specific interviews, CtrlS established one repeatable hiring process for graduate engineering recruitment.