Office Administrator North Plainfield

Office Administrator

Full Time • North Plainfield
Benefits:
  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Paid time off
  • Training & development
  • Vision insurance
Office Administrator
Location: North Plainfield, New Jersey
Company: Avantier – Premium Custom Optics Manufacturer
Base Salary: $50,000 - $65,000

About Avantier Inc.
At Avantier, you won’t just “have a job”—you’ll work on real, cutting-edge technology used in aerospace, defense, and life sciences.

We are a global photonics company (25+ years), specializing in custom optical design, engineering, and manufacturing for high-tech industries worldwide.

Position Overview
Avantier is seeking an experienced Office Administrator to support daily office and operational activities. We are looking for someone who has previously worked in a similar role and can confidently manage administrative tasks, communication, inventory coordination, and follow-ups in a fast-paced environment.

The ideal candidate is organized, proactive, detail-oriented, and comfortable managing multiple priorities while communicating effectively across teams.

Key Responsibilities
  • Prepare packing slips, invoices, and related documentation
  • Manage emails, follow-ups, and internal/external communication
  • Prioritize tasks based on urgency and business needs
  • Maintain office procedures, records, and organizational systems
  • Assist with inventory tracking and office supply coordination
  • Handle incoming phone calls and route inquiries appropriately
  • Support managers and cross-functional teams with daily operations
  • Identify and communicate issues proactively
  • Assist with ad-hoc operational, administrative, and office tasks as needed

Qualifications
  • 2+ years of experience in an office coordination, administrative, or operations support role
  • Experience with invoicing, documentation, inventory management, and phone handling
  • Strong written and verbal communication skills
  • Proficient in Microsoft Office (Excel, Outlook, Word)
  • Strong organizational and time management skills
  • Ability to multitask and work independently
  • High attention to detail and accuracy
  • Self-motivated with a proactive mindset

Why Join Avantier
  • Competitive compensation and full benefits (Medical, Dental, Vision, 401k)
  • Opportunity to work in a growing high-tech industry
  • Collaborative, hands-on environment with real impact

Additional Information
  • Work Hours: Monday–Friday, 9:00 AM – 6:00 PM
  • Work Location: In-person (5 days/week)
  • Job Type: Full-time
Compensation: $50,000.00 - $65,000.00 per year




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