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Fractional Payroll Specialist (Part-Time | Hybrid)

Fractional Payroll Specialist (Part-Time | Hybrid)

Mosaic Human Capital SolutionsSan Antonio, TX, US
30+ days ago
Job type
  • Part-time
  • Quick Apply
Job description

About the Role :

  • Mosaic Human Capital Solutions is expanding and seeking a Fractional Payroll Specialist to join our growing team.
  • In this role, you’ll be deployed to support clients, primarily small to mid-sized businesses, with end-to-end payroll administration and process improvement across payroll and HR functions .
  • This is a part-time, hybrid position offering significant flexibility, but candidates must reside in the San Antonio, TX area for occasional onsite work with clients.

Key Responsibilities :

  • Manage and process client payrolls accurately and on time using ADP or similar systems ; ensure proper handling of deductions, taxes, and reporting.
  • Evaluate existing payroll processes (many of which may be manual) and recommend improvements to enhance accuracy, efficiency, and compliance.
  • Serve as a liaison between clients and Mosaic to provide responsive, consultative HR / payroll support.
  • Assist with onboarding, HRIS updates, and other HR administrative tasks as needed.
  • Stay up to date with applicable federal and state employment laws and payroll regulations.
  • Provide basic training and support to client HR / payroll contacts on system use and improved workflows.

    • Required Qualifications :

  • San Antonio, TX-based, with the ability to travel locally to client sites when needed. 3+ years of hands-on payroll experience , including direct use of ADP or comparable platforms.
  • Strong understanding of payroll fundamentals, including benefit deductions, garnishments, tax filings, and wage / hour compliance.
  • Proven ability to identify inefficiencies in manual payroll processes and implement improvements.
  • Excellent organizational skills, attention to detail, and ability to manage multiple client accounts.
  • Strong interpersonal skills and comfort working directly with client stakeholders.

    • Preferred :

  • Experience working in a consulting or multi-client environment.
  • Familiarity with broader HR functions (e.g., benefits administration, onboarding, HRIS).

    • Position Details :

  • Part-time : ~20–30 hours / week to start, with potential to grow over time (if desired).

    • Hybrid :

  • Mix of remote work and local travel to client sites.
  • Flexibility in scheduling with deliverables-based accountability.
  • Mosaic Human Capital Solutions is an equal-opportunity employer.
  • We celebrate diversity and are committed to creating an inclusive environment for all employees.
  • All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, veteran status, or any other legally protected status.
  • Applicants must be authorized to work in the United States.
  • Employment offers are contingent upon successfully completing background checks and any applicable pre-employment requirements.
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    Payroll Specialist • San Antonio, TX, US