Senior Account Support Specialist

Milliman is hiring a part-time Senior Account Support Specialist for our San Diego Health IT Consulting Practice. This position primarily provides support and training to Milliman employees on custom proprietary Timesheet & Billing systems. This position also performs other Finance Department processes as needed. Who We Are Independent for over 75 years, Milliman delivers market-leading services and solutions to clients worldwide. Today, we are helping companies take on some of the world’s most critical and complex issues, including retirement funding and healthcare financing, risk management and regulatory compliance, data analytics, and business transformation. Milliman invests in skills training and career development and gives all employees access to a variety of learning and mentoring opportunities. Our growing number of Milliman Employee Resource Groups (ERG’s) are employee-led communities that influence policy decisions, develop future leaders, and amplify the voices of their constituents. We encourage our employees to give back to their varied professions, including leadership in professional organizations. Please visit our web site ( https://www.milliman.com/en/social-impact ) to learn more about Milliman’s commitments to our people, inclusion, and sustainability. Through a team of professionals ranging from actuaries to clinicians, technology specialists to plan administrators, we offer unparalleled expertise in employee benefits, investment consulting, healthcare, life insurance and financial services, and property and casualty insurance. What You Will Do In this role, you will have the following responsibilities: Support users with time entry, invoicing, and billing in a custom accounting system Train users on time entry, invoicing, and billing in a custom accounting system Provide support for the billing system interface with an Enterprise Legal Management system Provide excellent customer service Assist with Month-end close Provide treasury and banking support, as needed Research and record incoming electronic payments and exceptions, as needed What We Are Looking For Professional Qualifications Associate or bachelor's degree in accounting or finance. Minimum 5 years of experience in accounting position. Strong proficiency in software like Microsoft Excel and Word. Individual(s) must be legally authorized to work in the United States without the need for immigration support or sponsorship from Milliman now or in the future. The Team This position is with the San Diego office of Milliman. Location The expected application deadline for this job is September 30, 2026. Candidates hired into this role will be required to work in-person in the Milliman office in San Diego, California on a weekly basis, but flexible work arrangements will be considered. Compensation The overall range for this role is $29.43 - $45.59 per hour. A combination of factors will be considered, including, but not limited to, education, relevant work experience, qualifications, skills, certifications, etc. This is a non-exempt overtime eligible role. Benefits We offer a competitive benefits package which includes the following based on plan eligibility: Employee Assistance Program (EAP) – Confidential support for personal and work-related challenges. 401(k) Plan – Employees scheduled to work greater than 1,000 hours per year are eligible for a 401(k) plan that includes a company matching program and profit-sharing contributions Discretionary Bonus Program – Recognizing employee contributions. Paid Time Off (PTO) – Begins accruing on the first day of work. Full-time employees accrue 15 days per year, and employees working less full-time accrue PTO on a prorated basis. Holidays – A minimum of 10 paid prorated holidays per year. Transportation – Pre-tax savings for eligible transit and parking expenses. Equal Opportunity All qualified applicants will receive consideration for employment, without regard to race, color, religion, sex, sexual orientation, national origin, disability, or status as a protected veteran. #LI-HYBRID