Administrative Assistant – Branch Operations Support

Administrative Assistant – Branch Operations Support 

Location: Westbury, NY
Job Type: Full Time 

Miller Environmental Group (MEG) is seeking an Administrative Assistant to support daily branch operations. This role provides critical administrative, clerical, and operational support to both office and field teams, helping ensure projects, documentation, and internal processes run efficiently. 

The Administrative Assistant plays a key role in maintaining organized records, supporting payroll and accounts payable processes, assisting with system entries, and serving as a central point of contact for employees, vendors, and customers. 

Why Work for Miller Environmental Group? 

Be part of a fast-paced organization that supports environmental emergency response and remediation efforts. This role is essential in keeping operations running smoothly and supporting teams doing meaningful, mission-critical work. 

Compensation & Benefits:

• Starting pay: $25/hour+, depending on experience 
• Medical, dental, and vision coverage beginning the first day of the month following hire 
• 401(k) with dollar-for-dollar company match up to 4% 
• 15 paid days off annually (which increases each year of service) plus 10 paid holidays 
• Company-paid life insurance 
• Long-term career growth with a company that promotes from within and invests in its people 

Key Responsibilities: 

• Manage incoming calls and greet visitors in a professional and friendly manner 
• Sort, distribute, and manage incoming and outgoing mail (electronic and physical) 
• Scan, upload, and maintain project and office documentation, including customer and company system entries 
• Maintain compliance-related records, including job files and employee documentation 
• Support project file setup and ongoing documentation tracking for active jobs 
• Assist with timesheet collection, payroll hour entry, and coordination with centralized payroll 
• Process vendor invoices, reconcile purchase orders, and support accounts payable processes 
• Maintain office supplies, kitchen items, and office equipment to ensure operational readiness 
• Prepare basic correspondence, reports, and spreadsheets as requested 
• Provide general system entry support and assist employees with basic system navigation issues 
• Assist with preparation and submission of customer-required documentation (e.g., certificates of insurance, portal uploads, compliance forms) 
• Support subcontractor documentation and contract file maintenance as needed 
• Assist with administrative projects and other duties as assigned 

Required Qualifications:

• 1–3 years of administrative, clerical, payroll support, bookkeeping, or customer service experience (or equivalent experience) 
• Must be at least 18 years old 
• High School Diploma or GED 
• Proficiency in Microsoft Office (Word, Excel, Outlook) 
• Strong organizational skills with attention to detail and accuracy 
• Ability to multitask and manage deadlines in a fast-paced environment 
• Strong communication skills, both verbal and written 
• Ability to work independently with minimal supervision 
• Basic problem-solving skills and ability to assist with simple system or user issues 
• Must pass a post-offer drug screen and background check in accordance with applicable law 

Work Environment & Physical Demands:

• Work is performed primarily in an office setting 
• Frequent sitting, typing, and use of computers and office systems 
• Occasional walking, standing, bending, and light lifting (up to 10 lbs) 
• Regular interaction with employees, vendors, and customers in person and via phone/email 
• Moderate noise level consistent with a professional office environment
• Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions. 

About Miller Environmental Group: 

Miller Environmental Group is an environmental services company specializing in emergency response, remediation, and industrial cleaning. With multiple branch locations and rapid deployment capabilities, MEG supports clients during routine operations and critical incidents—helping protect people, property, and the environment.   Miller Environmental Group is an Equal Opportunity Employer, including veterans and individuals with disabilities.