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Office Administrator Entry Level

Avantier Inc. • Full-time • Plainfield, New Jersey, United States • $50k - $65k / year • 16h ago

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
Paid time off
Vision insurance

Office Administrator Entry Level

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