Supervisor, Personnel Administration

Ameren Services Company; St. Louis (MO); Hybrid; USD 89,000 - 137,000; Full time

Benefits offered by this job

Medical coverage on date of hire

Cash balance pension plan

401(k) with company match

Vacation and holidays

Parental leave and family caregiver?

Job summary

Ameren Services (B&CS) is seeking a Supervisor for ASC - Business Administration to oversee daily admin workflows and ensure timely, policy‑compliant operations across Payroll, Print & Mail, FMLA, DOT Admin, and Personnel Administration. The role leads DOT and Personnel Admin teams, upholds data integrity, and drives process improvements.

The ideal candidate will have a bachelor’s degree with several years of supervisory experience, strong MS Office skills, and the ability to collaborate with

Qualifications

• Bachelor’s degree from an accredited college or university in a relevant field of study required with 5 years of relevant experience.
• Associate degree from an accredited college in a relevant field of study required with 7 years of relevant experience or in lieu of higher education, a minimum of 10 years of relevant experience is required.
• Knowledge of regulatory matters preferred. Previous supervisory or high‑level project team leadership experience preferred.

Responsibilities

• Supervise a staff of professionals charged with maintaining accurate employee and/or consultant data in the Human Capital Management system.
• Provides regular performance feedback to staff and ensures day-to-day work is completed.
• Develop, implement, and maintain procedures, controls, and objective metrics to facilitate accurate measurements of performance.
• Maintain and review production to identify, report and troubleshoot problems; take remedial action based on business objectives.
• Identify and implement process improvements to advance operational efficiency.
• Serve as a liaison between Ameren business units and external service providers.
• Maintain integrity of confidential matters.
• Provide oversight of DOT and Drug & Alcohol compliance, unemployment administration, postings, surveys, data maintenance, staffing support.

Skills

Interpersonal skills

Decision making

Organizational skills

Education

Bachelor’s degree in a relevant field

Associate degree in a relevant field

10+ years of relevant experience in lieu of higher education

Tools

MS Office

Excel

Word

Job description

About Ameren Services (B&CS)

Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Ameren Services includes a wide range of skill sets and roles, from finance and legal experts to digital and cyber specialists, plus those charged with ensuring environmental compliance and operational safety. Together, we help execute a strategy that enables Ameren to deliver superior long‑term value to customers, shareholders and the environment.

Our benefits include:

• Medical coverage on date of hire
• 100% employer paid cash balance pension plan
• 401(k) with company match fully vested on date of hire
• Minimum of 15 days paid vacation and 12 paid holidays
• Paid parentalleave and family caregiver leave

Visit our Benefits & Perks Page for more information on benefits provided to regular full‑time employees.

About The Position

The Supervisor, ASC - Business Administration is responsible for overseeing and managing daily workflows in various Administration areas accurately and timely in accordance with company policies, multiple collective bargaining agreements, employee benefits, and state and federal regulations. The supervisor assists the team with their tasks during busy times. This position offers the opportunity to rotate and gain professional growth in the following areas: Payroll, Print & Mail Services, FMLA, DOT Administration, and Personnel Administration.

This position directly oversees the DOT Administration and Personnel Administration teams.

Key responsibilities include:

• Supervise a staff of professionals charged with maintaining accurate employee and/or consultant data in the Human Capital Management system. Administer system changes and updates to systems, including system upgrades while ensuring the integrity of the systems. Act as a lead technical and functional resource.
• Provides regular performance feedback to staff, ensures day‑to‑day work is completed, ensures employees are given tools, training and resources needed to perform and exceed in their jobs.
• Develop, implement, and maintain procedures, controls, and objective metrics to facilitate accurate measurements of performance.
• Maintain and review production to identify, report and troubleshoot various problems and issues; take prompt remedial and corrective action, when necessary, based upon business objectives.
• Encourage and facilitate a culture of operational excellence and continuous improvement by identifying, analyzing, recommending, and implementing process improvements to advance overall operational efficiency.
• Serve as a liaison between Ameren business units and necessary external service providers.
• Maintain a high degree of integrity to safeguard the Company’s position on confidential matters.
• Provide oversight of DOT and Drug & Alcohol compliance, unemployment administration, bulletin board postings, essential function surveys, data maintenance, staffing support, records management, and related business processes.

Qualifications

Bachelor’s degree from an accredited college or university in a relevant field of study required with 5 years of relevant experience. Associate degree from an accredited college in a relevant field of study required with 7 years of relevant experience or in lieu of higher education, a minimum of 10 years of relevant experience is required. Knowledge of regulatory matters preferred. Previous supervisory or high‑level project team leadership experience preferred.

In addition to the above qualifications, the successful candidate will demonstrate:

Ability to make sound decisions and possess a high level of organizational skills; creative self‑starter with strong interpersonal skills - able to work effectively as a team and with various stakeholders at all levels of the organization. Must demonstrate excellent communication skills, including presentation, written and verbal. Must possess strong skills in MS Office, Word, and Excel and the following Ameren competencies: Be Strategic, Continuously Improve, Deliver Results, Engage Respectfully, Foster Collaboration, and Think Customer.

Additional Information

Ameren’s selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill‑based assessment. Specific details will be provided to qualified candidates.

#LI-Hybrid

Compensation Range:

$88,500.00 - $137,200.00

At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance.

If end date is listed, the posting will come down at 12:00 am on that date:

Saturday October 10, 2026

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.