403b Administration and Oversight: Maintain accurate records for audit purposes and perform monthly audit and reconciliation of 403b accounts.Group Health Insurance Management: Manage group health insurance payments and assist the Director of Human Resources with health plan-related matters.Leave of Absence Management: Assist the Director of Human Resources in managing leaves of absence, ensuring compliance with company policies and regulations.Flexible Spending Account (FSA) Administration: Manage FSA benefits, including enrollment, contributions, and reimbursements, ensuring compliance with regulatory requirements.Financial Reconciliation: Assist accounting with monthly HR-related account reconciliations and record appropriate General Ledger entries for review and posting by the Controller.Union Dues Processing: Process monthly union dues payments, maintain documentation of payments, and liaise with unions regarding payment processing.Tuition Benefit Management: Manage tuition benefit requests, including processing applications and tracking tuition loan repayments.Medicare Reimbursements: Process quarterly Medicare reimbursements accurately and in a timely manner.Additional Responsibilities: Assist with other HR-related duties as assigned, contributing to the overall effectiveness and efficiency of the HR department.MPI does not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, marital status, or based on an individual's status in any group or class protected by applicable federal, state or local law. MPI encourages applications from minorities, women, the disabled, protected veterans and all other qualified applicants.Bachelor's degree in Human Resources, Business Administration, or a related field.3+ years of experience in benefits administration, with a focus on retirement plans, health insurance, and leave management. Experience with 403b or 401k administrationStrong attention to detail and accuracy in financial record-keeping and reconciliation.Excellent communication skills, both written and verbal.Proficiency in Microsoft Office Suite and HRIS software.Knowledge of relevant laws, regulations, and compliance requirements (e.g., ERISA, ACA, FMLA).