Office Administrator : NJ-North Plainfield

Benefits

• 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

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.

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