Human Resources Generalist

Trileaf Corporation; St. Louis (MO); On-site; USD 60,000 - 76,000; Full time

Benefits offered by this job

401k with company match

Short-term disability, long-term-dis.,

Life Insurance – 100% Employer paid

3 weeks PTO per year

Job summary

Trileaf Corporation is seeking an HR Generalist to manage payroll administration, benefits programs, onboarding, and HR compliance from its St. Louis, MO headquarters.

The role supports employees and managers, ensuring guidance on HR policies and confidential handling of information. Primary duties include onboarding coordination, benefits administration, payroll processing, HRIS maintenance, and employee relations support, with collaboration across departments to uphold a positive workplace

Qualifications

• Bachelor’s degree in Human Resources or related field preferred.
• 3–5 years HR experience including payroll and benefits administration.
• Experience with payroll processing and payroll systems.

Responsibilities

• Coordinate new hire onboarding and orientation.
• Administer employee benefits programs and open enrollment.
• Process semi-monthly payroll accurately and maintain payroll records.
• Maintain HRIS data and accurate reporting.
• Support employee relations and policies adherence.
• Assist in training program development and delivery.
• Ensure compliance with employment laws and audits.
• Conduct exit interviews and track retention trends.

Skills

Payroll administration

Benefits administration

Employee relations

HR policy guidance

Confidential data handling

Education

Bachelor’s degree in Human Resources

Tools

HRIS

Payroll systems

Job description

Company:

Trileaf Corporation is a nationwide environmental, architecture, and engineering consulting firm that assists clients with environmental due diligence, regulatory compliance, and engineering & architectural design. Trileaf serves the wireless communications, real estate, and financial industries from its headquarters in St. Louis, MO and many branch offices throughout the U.S.

Position Summary:

The HR Generalist supports the day‑to‑day operations of the Human Resources department with a primary focus on payroll administration, benefits administration, employee relations, onboarding, compliance, and HR operations. This role serves as a resource to employees and managers by providing guidance on HR policies, procedures, payroll, and benefits while supporting a collaborative workplace culture.

Essential Duties and Responsibilities:

• Coordinate and facilitate new hire onboarding and orientation to support a positive employee experience and timely integration into the organization. This includes preparing onboarding materials, processing employment documentation, and partnering with managers to support successful onboarding activities.
• Administer employee benefits programs including medical, dental, vision, retirement, leave programs, and other benefit offerings. Coordinate annual open enrollment, process qualifying life event changes, respond to employee questions, and serve as the primary liaison with benefit vendors and brokers.
• Process semi‑monthly payroll accurately and on schedule. Review payroll data for completeness and accuracy, maintain payroll records, process employee status changes, monitor timekeeping records, and assist with payroll‑related inquiries while maintaining confidentiality.
• Maintain and update employee records and HRIS data to support accurate reporting, compliance, payroll processing, and personnel documentation.
• Support employee relations efforts by responding to employee questions and concerns, assisting managers with employee issues, and helping maintain a positive and professional work environment.
• Provide guidance to employees and managers regarding HR policies, procedures, benefits, payroll practices, and employment‑related processes.
• Assist in the development, implementation, communication, and consistent application of HR policies, procedures, and programs.
• Partner with the HR Director to identify training and development needs, coordinate employee training programs, maintain training records, and assist with facilitation of HR‑related training initiatives.
• Maintain compliance with federal, state, and local employment laws and regulations. Assist with audits, required reporting, record retention, and updates to HR practices to align with legal requirements.
• Conduct exit interviews, track trends and feedback, and provide recommendations to improve employee retention and engagement.
• Assist with additional HR and administrative duties as assigned to support departmental and organizational objectives.

Skills & Qualifications Needed:

• Bachelor’s degree in Human Resources, or related field preferred.
• Minimum of 3–5 years of Human Resources experience required, including payroll and benefits administration.
• Experience processing payroll and working with payroll systems required.
• Working knowledge of federal, state, and local employment laws and HR best practices.
• Experience administering employee benefits programs and supporting open enrollment processes.
• Proficiency with HRIS, payroll systems, Microsoft Office Suite, and related HR technology.
• Strong attention to detail and accuracy, particularly with payroll, employee records, and confidential information.
• Ability to maintain confidentiality and exercise sound judgment in sensitive situations.
• Experience with employee relations, policy interpretation, and HR administrative processes preferred.
• SHRM-CP, PHR, CPP, or other HR/payroll certification preferred but not required.
• 401k with company match
• Short-term disability, Long-term disability & Life Insurance – 100% Employer paid
• 3 weeks of PTO per year

The listed salary range for this position is an expected range. The actual offer will be at the company's sole discretion and determined by relevant business considerations, including the final candidate's qualifications, years of experience, skillset, geographic location, and current market data.

All offers of employment are contingent upon the successful completion of a comprehensive background check, including criminal history, education verification, employment verification and drug test. This may also include credit and motor vehicle record checks depending on the position.

Trileaf Corporation is an Equal Opportunity. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, genetic disorder, disability, protected veteran status or any other characteristic protected by state, federal, or local law.