The Human Resources Supervisor will serve as the on‑site HR leader for AMETEK employees at the O’Brien facility in St. Louis, MO, with additional HR responsibilities supporting employees within the Midwest & Western Region. This role partners closely with Business Unit and Divisional HR teams to drive HR strategy, ensure compliance, and deliver best‑in‑class HR practices. This position also plays a critical role in attracting, retaining, and engaging top talent while supporting the business through effective and scalable people solutions. Essential Duties & Responsibilities:​ • Serve as the on‑site Human Resources Supervisor for the AMETEK O’Brien facility in St. Louis, MO, with responsibility for day‑to‑day HR operations and employee relations at the site. Provide regional/divisional HR support to additional assigned locations. • Partner closely with Business Unit and HR leadership to execute HR strategy, ensure compliance, and drive consistent HR practices across the region. • Operate with a strategic HR mindset while maintaining a strong, hands‑on generalist approach to daily HR execution. • Act as a trusted advisor to site and functional leaders, providing coaching and guidance on talent management, performance, employee relations, and organizational effectiveness. • Ensure consistent, fair, and compliant treatment of employees in alignment with company policies and employment laws. • Lead and support workplace investigations and recommend appropriate corrective or disciplinary actions when necessary. • Oversee talent acquisition activities for the site, partnering with divisional recruiting resources for specialized or hard‑to‑fill roles. • Strategically leverage AI and data‑driven tools to improve HR processes such as workforce planning, talent insights, compliance tracking, and operational efficiency, in alignment with AMETEK policies and governance.