The Real Cost of a Bad Tech Hire

When a bad hire leaves or is let go, you pay the full hiring cost again. For a $140k engineer this is $52,000-$70,000 in recruiter fees, interview time, and onboarding. If the bad hire lasted 12 months, you have effectively paid two years of hiring costs.

A bad tech hire typically operates at 40-60% of the expected productivity level throughout their tenure. For a $150k developer over 12 months, that is $60,000-$90,000 in underperformance. Multiply by team drag effects and the total can reach 2x.

Engineering managers and senior engineers spend disproportionate time managing, reviewing, and fixing the work of a bad hire. Research consistently shows managers spend 2-3x as much time on underperformers as high performers. That time has an opportunity cost.

Code written by a substandard developer often requires significant remediation. Technical debt created by a bad hire typically takes 6-18 months to fully address. If 3 senior developers spend 10% of their time cleaning up bad code for a year, that is $50,000-$70,000.

High performers are sensitive to quality standards. A visible bad hire who is not managed out signals poor leadership judgment and can drive top performers to look elsewhere. Losing one senior developer due to morale issues costs another $80,000-$120,000 in replacement costs.

In customer-facing or critical infrastructure roles, the impact of a bad hire extends to product quality, system reliability, and customer satisfaction. Bugs shipped, features delayed, and incidents caused all carry financial consequences beyond HR metrics.