Professional recruiting certifications — AIRS Certified Internet Recruiter (CIR) or Advanced CIR, AIRS Professional Recruiter Certification (PRC), LinkedIn Certified Professional–Recruiter, ASA Certified Staffing Professional (CSP), or NAPS Certified Personnel Consultant (CPC). Proven AI/ML recruiting depth: successful placements of machine learning engineers, data scientists, or AI researchers/engineers, with the technical fluency to screen credibly for ML frameworks (e.g., PyTorch, TensorFlow), data pipelines, MLOps, and model deployment.