Office Administrative & HR Support Specialist

ADVANCED INFRASTRUCTURE DESIGN; Haines Corner (NJ); On-site; USD 38,000 - 48,000; Full time

Benefits offered by this job

401(k) matching

Dental insurance

Health insurance

Vision insurance

Paid time off

Job summary

ADVANCED INFRASTRUCTURE DESIGN in central New Jersey seeks an Office Administrative Assistant to support day-to-day operations in a professional, detail-oriented environment.

You will assist the Office Manager, Marketing Director, and Engineering staff; manage calendars; handle calls and emails; process documents; and help with onboarding and HR records. This full-time, in-person role requires a strong work ethic and reliability.

Qualifications

• Proficient in Microsoft Office Suite; Word, Excel, PowerPoint, Outlook.
• Excellent verbal and written communication skills.
• Strong organizational, problem-solving, and time management abilities.
• Ability to prioritize tasks, manage interruptions, and multitask effectively.
• Familiarity with general office procedures and administrative systems.
• Proactive, self-motivated, and committed to excellence.
• High attention to detail with the ability to learn quickly.
• College education is required.
• HR experience preferred.
• MBA or accounting-related background is highly desirable.

Responsibilities

• Perform diverse administrative and clerical tasks to ensure efficient daily operations.
• Provide direct support to Office Manager, Marketing Director, and Engineering staff.
• Organize and schedule meetings, appointments, and maintain office calendars.
• Manage incoming calls, emails, and general correspondence.
• Track and order office supplies to maintain inventory; assist with document processing, filing, and record-keeping.
• Support onboarding for new hires and maintain personnel records.
• Handle sensitive and confidential information with discretion.
• Assist with marketing or project-related tasks as assigned.

Skills

MS Office Suite

Communication

Organization

Problem solving

Time management

Prioritization

Office procedures

Proactivity

Attention to detail

HR familiarity

Education

College education

MBA

Accounting

Tools

QuickBooks

ADP

Job description

ADVANCED INFRASTRUCTURE DESIGN in central New Jersey seeks an Office Administrative Assistant to support day-to-day operations in a professional, detail-oriented environment.

You will assist the Office Manager, Marketing Director, and Engineering staff; manage calendars; handle calls and emails; process documents; and help with onboarding and HR records. This full-time, in-person role requires a strong work ethic and reliability.