Administrative Assistant #32659
John Leonard Employment Services
Portsmouth, NH · Posted September 28, 2026
More in New Hampshire job market · Construction & Real Estate · Administration jobs
About the job
Location: Portsmouth, NH | On-site 5 days/week
Salary Range: $45K-$50K
Schedule: Full-time | Monday-Friday, 8:30-5:30
Required: 5+ years of experience in administrative support, office management, executive assistance, bookkeeping, or a related role
Applicants must be authorized to work in the United States without sponsorship. This position is not eligible for employer-sponsored work authorization now or in the future.
About the Opportunity
We are seeking a confident, highly organized, and detail-oriented Administrative Assistant to support the day-to-day operations of a busy professional services firm.
This is a broad, hands-on position with responsibilities spanning office administration, executive support, facilities, human resources, marketing, accounts payable, technology, and regulatory compliance . The successful candidate will be comfortable managing multiple priorities, communicating with clients and vendors, and taking ownership of tasks from start to finish.
Qualifications & Skills
5+ years of experience in administrative support, office management, executive assistance, bookkeeping, or a related role
Experience in a professional services environment preferred
Advanced proficiency with Microsoft Office , including Outlook, Word, Excel, and PowerPoint
Experience with Salesforce, videoconferencing platforms, and general office technology
Strong organizational and time management skills
Ability to multitask, prioritize, and manage competing deadlines
Exceptional attention to detail and follow-through
Strong written and verbal communication skills
Professional and polished approach when interacting with clients, prospects, vendors, and colleagues
Ability to handle confidential financial, client, and personnel information with discretion
Strong judgment and ability to work independently
Proactive approach to identifying problems and improving processes
Willingness to take ownership and contribute to a collaborative team environment
Key Responsibilities
Office Administration & Facilities
Serve as a primary front-desk contact for visitors, deliveries, mail, and general inquiries
Maintain office supplies, common areas, and day-to-day office operations
Coordinate meeting logistics, parking, and office arrangements
Maintain digital files, records, and other administrative documentation
Support the smooth and efficient operation of the office
Executive & Travel Support
Coordinate calendars, business travel, itineraries, and scheduling
Arrange gifts, flowers, cards, and other special requests
Respond to ad hoc requests from executives, clients, and prospects
Provide general administrative and executive support as needed
Human Resources & Marketing
Assist with employee onboarding and offboarding , including paperwork, access setup, background checks, and candidate scheduling
Support recruiting and interview coordination
Assist with marketing initiatives, mailings, presentations, and promotional materials
Provide administrative support for internal events and projects
Accounts Payable & Vendor Management
Coordinate vendor communications and documentation
Code credit card expenses through Bill.com
Collect and maintain vendor W-9 forms
Assist with accounts payable and other basic bookkeeping-related tasks
Compliance & Regulatory Support
Provide administrative support to an affiliated broker-dealer
Assist with FINRA and regulatory compliance documentation
Maintain compliance manuals, paperwork, and calendars
Assist with monthly brokerage statement reconciliation
Coordinate compliance meetings and related administrative tasks
Information Technology
Serve as a liaison with outside IT and telecommunications vendors
Coordinate procurement and maintenance of laptops, mobile devices, and audiovisual equipment
Track technology support tickets and follow up on outstanding issues
Provide general administrative support for office technology
Apply Today
Ready to put your administrative, organizational, and problem-solving skills to work? Apply today for this Administrative Assistant opportunity in Portsmouth, NH.
Founded in 1969, JOHN LEONARD, a woman-owned business, is the premier staffing choice in Boston and beyond. We provide Temporary/Contract, Direct Hire, Temp-to-Hire, and Payroll services as part of our comprehensive service offerings. JOHN LEONARD is an equal opportunity employer committed to representation, belonging, and accessibility in the workplace. All applicants are encouraged to apply and will receive consideration for employment without regard to race, religion, color, national origin, age, sex, sexual orientation, disability status, or any other characteristic protected by applicable law.