Overview

Consider joining the MX Holdings family as a Senior HR Operations Manager at our St. Louis, MO location.  In this highly visible leadership role, you will serve as the operational backbone of our HR function — overseeing total rewards, HRIS, people systems, recruiting, and a team of dedicated HR professionals. Reporting to the VP of HR, you will be a strategic partner and hands-on leader, ensuring our programs are competitive, compliant, and aligned with our people-first culture. This is an exciting opportunity for an experienced professional with deep functional expertise to make a meaningful and lasting impact across our family of companies.

Responsibilities

Essential Duties and Responsibilities:

 

Total Rewards and Payroll

• Design, implement, and administer a competitive and integrated total rewards strategy encompassing compensation, benefits, and recognition programs
• Manage the relationship with our outsourced payroll provider, serving as the primary point of accountability for accurate, timely, and compliant payroll processing across all MX Holdings entities
• Oversee compensation program design including annual merit cycles, salary structure reviews, incentive plan administration, and market benchmarking
• Administer employee benefits programs including health, dental, vision, life, disability, and 401(k); manage open enrollment and carrier relationships
• Ensure compliance with applicable regulations including COBRA, HIPAA, ERISA, ACA, PCORI, and CMS requirements
• Analyze and assess the effectiveness of current total rewards programs; benchmark against market data and recommend enhancements
• Prepare and oversee annual discrimination testing on Section 125 plans and other required filings

HRIS

• Own the strategy, administration, and integrity of MX Holdings’ HRIS (ADP Workforce Now), ensuring accurate and complete employee data across all modules
• Manage system configuration, module rollouts, integrations, and vendor relationships in partnership with the HRIS vendor
• Oversee data security, access controls, and compliance with data privacy requirements across HR systems
• Develop, maintain, and distribute HR reports and dashboards; support ad-hoc data requests from business leaders and HR partners
• Evaluate emerging HR technology solutions and lead implementation of new tools that enhance the employee experience

People Systems

• Lead the administration of people systems supporting annual reviews and compensation review cycles; identify opportunities to improve efficiency and user experience
• Lead succession planning efforts for the team by identifying high-potential talent, maintaining a pipeline of ready-now and future candidates, and partnering with leadership to close critical capability gaps
• Drive the development planning process for direct and indirect reports, ensuring each team member has a meaningful, actionable IDP aligned to both business priorities and individual career goals
• Champion the employee engagement survey process end-to-end, driving participation and communicating results to facilitating action planning conversations with the team and holding leaders accountable for follow-through
• Analyze engagement survey data to identify trends, surface key themes, and translate insights into targeted initiatives that measurably improve team culture and retention

Talent Acquisition

• Oversee the full-cycle recruiting function, ensuring a consistent, efficient, and equitable hiring process across all MX Holdings companies
• Lead, coach, and develop the talent acquisition team; establish sourcing strategies, metrics, and best practices
• Partner with hiring managers and business leaders to understand workforce needs and develop targeted recruiting strategies
• Manage the applicant tracking system and ensure data integrity and compliance across all open requisitions
• Champion a positive candidate experience and strengthen MX Holdings’ employer brand across all recruiting touchpoints
• Monitor recruiting KPIs (time-to-fill, quality of hire, offer acceptance rates, etc.) and use data to continuously improve performance
• Ensure recruiting practices comply with EEO and applicable employment laws

People Operations Leadership

• Lead, mentor, and develop a team, fostering a collaborative, high-performance team culture
• Serve as a trusted advisor to HR leadership and business partners on people operations matters
• Identify and implement process improvements that increase efficiency, reduce risk, and improve the employee experience
• Contribute to broader HR strategy and cross-functional initiatives as a key member of the HR leadership team
• Performs other duties as assigned

Qualifications

Ideal Candidate Will Have:

 

Education

• Bachelor’s degree in Human Resources, Business Administration, Finance, or a related field required

Experience

• 8–10+ years of progressive HR experience, with demonstrated breadth across total rewards, HRIS, and recruiting
• 3+ years of direct people management experience with a track record of developing high-performing teams
• Experience managing outsourced payroll vendors and overseeing multi-state payroll compliance
• Preferred: SHRM-SCP, SPHR, or CCP (Certified Compensation Professional) designation

Required Skills, Knowledge, and Abilities

• Hands-on experience with ADP Workforce Now; advanced proficiency across HRIS, payroll, and reporting modules strongly preferred
• Demonstrated knowledge of federal and state wage and hour laws, tax provisions, labor law, and benefit-related regulations
• Deep expertise in benefits administration including 401(k) plans and compliance with COBRA, HIPAA, ERISA, ACA, and related regulations
• Experience administering or overseeing performance management, engagement, and compensation review cycles using HR technology platforms
• Proven track record of managing full-cycle recruiting functions, including ATS administration and employer brand development
• Strong data analysis skills with the ability to translate HR metrics into actionable insights for leadership
• Excellent verbal and written communication skills; ability to effectively present and influence at all levels of the organization
• Strong organizational skills with the ability to manage multiple priorities and deadlines simultaneously
• High attention to detail with a commitment to data accuracy and process excellence
• Demonstrated ability to lead change, build collaborative relationships, and drive continuous improvement
• Proficient in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook, Teams)
• Must be eligible to work in the United States; visa sponsorships are not available
• Must have regular attendance and be available to work on-site in our St. Louis, MO location
• Must be able to pass a pre-employment background check, drug screen, and assessment

Preferred Skills

• Experience in a manufacturing, industrial, or multi-site environment
• Familiarity with FMLA, ADA, AADA, and related federal and state leave laws
• Experience with tax filing in a multi-state environment
• Experience evaluating and implementing new HR technology platforms

About Us

Perks of the Job

• Medical, dental and vision insurance
• Disability and life insurance
• 401(k) with matching contribution
• Generous allotment of paid vacation and paid holidays
•  Enterprise-wide winter break between Christmas and New Year’s holidays
• Competitive wages plus performance-based bonus opportunities
• Employee Assistance Program (EAP)
• Headspace Account for improved emotional well-being
• Ongoing training and professional development
• Ample opportunity for career growth and advancement
• Paid time off for all new parents
• Relocation package may be available, if applicable

Why Our People Love Working Here

• Purpose-driven, friendly, open, and respectful culture
• Highly engaged workforce – as indicated by best-in-class engagement scores
• NEW FOR 2026! Summer Hours- Hybrid work schedule from Memorial Day through Labor Day, consisting of 3 in-office days and 2 remote days per week
• NEW FOR 2026! Up to 10 remote workdays permitted between Labor Day and Memorial Day during normal business hours
• Shared core values of safety, integrity, caring and growth
• Leaders committed to building more diverse, inclusive teams
• On-Demand pay via DailyPay
• Robust recognition and reward program
• Community Impact opportunities including additional time off to volunteer and charitable match up to $250 per employee
• Tuition reimbursement
• Complimentary refreshment bar with beverages and snacks
• Employee discount program with hundreds of partner brands
• Wellness incentive program
• Regular employee celebrations and events

Posted Min Pay RateUSD $116,794.00/Yr. Posted Max Pay RateUSD $151,619.00/Yr.