Senior Manager, HR Operations

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page,  We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at

The Senior Manager, HR Operations leads the company’s HR Shared Services and operational delivery model, ensuring HR services across the employee lifecycle are accurate, compliant, and scalable. This role blends hands‑on operational leadership with strategic ownership, building strong teams, clear standards, and disciplined processes that enable exceptional employee and manager experiences.

This leader brings deep operational judgment, strong attention to detail, and a commitment to continuous improvement—questioning what exists, learning quickly, and raising the bar on how work gets done. They develop people, build trust across functions, and use systems and data as enablers to deliver reliable service and insight at scale.

Responsibilities include overseeing onboarding, offboarding, employee data management, HR transactions, reporting, and vendor partnerships; setting service standards and performance metrics; partnering with HR, Finance, IT, and Legal; and establishing the foundation for future automation and systems enablement.

• Lead and develop the HR Shared Services team, building strong managers, clear accountability, and a culture of service excellence and continuous improvement.
• Own end-to-end HR service delivery across the employee lifecycle, including onboarding, offboarding, job changes, PARs, benefits administration, payroll coordination, and reporting.
• Establish and manage service standards (SLAs, KPIs, quality controls) to ensure speed, accuracy, compliance, and a consistent employee experience.
• Design and optimize HR work streams, simplifying processes, reducing handoffs, and eliminating manual, low-value work.
• Build and maintain SOPs and knowledge resources to ensure consistency, scalability, and business continuity.
• Partner cross-functionally with HRBPs, Finance, IT, business owners and Legal to align HR operations with policy, compliance, and business priorities.
• Own HR operational reporting, delivering reliable insights on service performance, workforce trends, and data quality.
• Serve as the Tier 3 escalation point for complex employee and manager issues, ensuring fair, timely, and well-documented resolution.
• Build the foundation for automation and systems enablement, translating operational needs into scalable, self-service and system-driven solutions.
• Maintain professional demeanor and behavior at all times in all forms of communication.
• Perform other duties as assigned by leadership.

• Typically requires a bachelor's degree.
• Bachelor’s degree in Human Resources, Business Administration, or related field (or equivalent experience)
• The skills required for this role are typically demonstrated by twelve plus years of relevant experience.
• 10+ years of progressive HR Operations, HRIS, or People Systems leadership in high-growth, complex, or highly regulated environments.
• Strong working knowledge of enterprise HRIS platforms (e.g., Workday) as operational and reporting enablers. Deep, hands‑on expertise as a Workday Functional Lead or Product Owner, across multiple modules (HCM, Compensation, Payroll, Benefits, Time, Talent, Reporting) will be given preference.
• Proven experience building enterprise HR operating models, governance frameworks, and SOX‑compliant controls and driving process improvement, automation, and operational rigor across HR transactions and services.
• Demonstrated success leading large‑scale Workday implementations, global rollouts, or major system transformations.
• Advanced capability in people analytics, workforce planning, and executive-level reporting.
• Experience managing HR vendors and supplier relationships, including contract oversight and invoice validation.
• Strong cross-functional leadership…