Office Administrator

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.

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off
• Training & development
• Vision insurance

Location: North Plainfield, New Jersey

Company: Avantier – Premium Custom Optics Manufacturer

Base Salary: $50,000 - $65,000

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.

• 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

• 3+ 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

• 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

Work Hours: Monday–Friday, 9:00 AM – 6:00 PM

Work Location: In‑person (5 days/week)

Job Type: Full‑time