Job Description

SEIU Local 509

Receptionist / Office Assistant

Based in Marlborough, MA

ABOUT SEIU LOCAL 509
SEIU Local 509 is a fast-growing, progressive union representing over 28,000 state workers, human service workers, higher education faculty and family child care providers in Massachusetts. This position is part of the Local’s communications department. In the current political environment, the union has a steadfast vision to increase participation and power among its rank-and-file membership.

SEIU Local 509 is part of the Service Employees International Union (SEIU), one of the largest and fastest-growing labor unions in the United States.

DUTIES AND RESPONSIBILITIES:

• Greet visitors at front desk and cover incoming calls
• Collect and distribute all incoming mail and manage mailboxes
• Track and document credit card activities
• Maintain internal electronic meeting and meeting room calendar
• Order and arrange food for all internal meetings
• Maintain orderly reception area, common areas, storage 
• Maintain, inventory and order office supplies, swag and equipment
• Compile and complete mailings
• Fill building and office work-orders
• Provide assistance to meeting participants
• Assemble new member packets 
• Maintain directory and internal forms and documents
• Assist during events with registration, setup and logistics
• Assist with conference registration, logistics and travel booking for staff and union members
• General data entry, copying and filing
• Other administrative duties as needed

SUPERVISION RECEIVED:
This position is supervised by the Director of Administration

QUALIFICATIONS:

• Ability to be flexible and balance several projects simultaneously
• Proficiency in Microsoft and Google Suite 
• Ability to communicate well and function across the sectors and tiers of the union including staff, members, officers, vendors, and visitors
• Openness to learning new systems
• Attention to detail and grammar; Bilingual Spanish skills a plus

COMPENSATION, BENEFITS & LOCATION
This is a full-time bargaining unit position based in Marlborough, MA with regular hours of Monday – Friday, 9am-5pm, and occasional evening/weekend assignments.

As of 1/1/26, the salary range for this position is $61,847.47 – $70,439.77 depending on experience. Benefits include, at no cost to the employee: health insurance with FSA and HRA, dental insurance, short and long-term disability, a pension, an optional 401k, and generous paid time off.

Must have a driver's license, vehicle registration, and/or intent to purchase a vehicle. Our main office is located in Marlborough, MA.

SEIU Local 509 requires new employees to have a record of COVID-19 vaccination or a valid accommodation at the time of hire.

HOW TO APPLY
To apply to this position, please submit an updated résumé and a thoughtfully written cover letter to jobapplication@seiu509.org and indicate “ Receptionist/Office Assistant ” in the subject line. The application deadline is December 21, 2025 .

Candidates who advance should expect in-person interviews at our Marlborough, MA headquarters in early January. The expected start date is late January 2026.

We want to interview the best candidates for our organization. If you think you have the skills to fill the role and serve our mission, even if you don’t meet every qualification in the list, please consider applying. We review all applications thoroughly and are open to considering candidates from many different backgrounds.

If you would like to request accommodation during the interview process, please email mconway@seiu509.org . Accommodation requests will be handled confidentially. Please do not send inquiries about the status of your application.

SEIU Local 509 is an equal opportunity employer and does not discriminate on the basis of sex, race, color, religion, sexual orientation, gender identity or expression, national origin, cultural heritage, ancestry, political belief, age, marital status, pregnancy, physical or mental disability or veteran status. SEIU Local 509 is compliant with the Americans with Disabilities Act and we are committed to making special accommodations for your interview or work as a member of our team.

WHEN APPLYING: Be sure to indicate that you saw this information at .

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