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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.