Benefits Administrator

We're seeking a Senior Benefits Administrator to join a collaborative HR team in Waltham, MA for a temporary assignment through June. This role is perfect for a detail-oriented HR professional with deep knowledge of health and welfare plans, ACA reporting, and compliance who thrives in a fast-paced, hands-on environment.

You'll play a critical role in ensuring benefits programs are administered accurately, efficiently, and in full compliance with federal and state regulations.

What You'll Do

Administer and ensure compliance for health and welfare benefit programs

Oversee Affordable Care Act (ACA) reporting, 5500 filings , and other compliance-related activities

Maintain adherence to ERISA , HIPAA , and other labor laws and filing requirements

Partner with plan providers to ensure smooth and efficient benefits administration

Manage employee benefits throughout the lifecycle-new hires, life events, open enrollment, and terminations

Serve as the primary contact for employees and leadership on complex benefits questions

Oversee benefits invoicing , self-billing, and timely payment of benefit premiums

Maintain the Oracle Benefits Module , ensuring system accuracy, data integrity, and successful integrations

Collaborate cross-functionally with Payroll, HRIS, HR Operations, Talent Acquisition, and Legal

Support audits, government filings, and create reports to analyze and summarize trends

What You Bring

Bachelor's degree in HR, Business, or related field

Strong experience in health and welfare benefits administration and compliance

Advanced Excel skills (PivotTables, VLOOKUPs) and proficiency in Word and PowerPoint

Experience with Oracle HRMS or similar HRIS systems preferred

Excellent attention to detail, communication, and analytical skills

Proven ability to work independently and manage multiple priorities under tight deadlines

Strong working knowledge of HIPAA, ERISA, ACA , and related benefits regulations

Why You'll Love Working With Us

Competitive hourly rate ($55-$60 / hour)

Weekly pay and direct deposit through Hunter Hamilton

Temporary health benefits during your assignment

Opportunity to make a meaningful impact within a leading HR team

Hybrid flexibility

If you're ready to bring your benefits expertise and compliance knowledge to a dynamic HR environment, apply today and join a team that values accuracy, collaboration, and professional excellence.

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About Hunter Hamilton

Hunter Hamilton is committed to providing equal employment opportunity for all persons regardless of race, color, religion (including religious dress and grooming practices), sex, sexual orientation, gender, gender identity, gender expression, age, marital status, national origin, ancestry, citizenship status, pregnancy, medical condition, genetic information, mental and physical disability, political affiliation, union membership, status as a parent, military or veteran status or other non-merit based factors. We will provide reasonable accommodations throughout the application, interviewing and employment process. If you require a reasonable accommodation, contact your local branch. Hunter Hamilton is an E-Verify employer. This policy is applicable to all phases of the employment relationship, including hiring, transfers, promotions, training, terminations, working conditions, compensation, benefits, and other terms and conditions of employment.

All employees are directed to familiarize themselves with this policy and to act in accordance with it. All decisions with respect to employment matters and other phases of employer-temporary employee relationships will be in keeping with this policy and in accordance with all applicable laws and regulations.

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