On-Site Administrative Assistant — Plant Operations

TransAlta Corporation; Centralia (WA); On-site; USD 46,000 - 64,000; Full time

Benefits offered by this job

Annual incentives

401(k) plan with 5% employer contrib.

Medical, dental, vision, life

Generous vacation and personal days

Learning and development programs

Employee recognition and rewards

Wellness allowance

Job summary

TransAlta is seeking a highly organized Administrative Assistant to support the Centralia Plant day-to-day operations, coordinating calendars, meetings, travel, and visitor logistics. This on-site role requires strong communication, document management, and the ability to work across teams in a manufacturing environment with a focus on accuracy and efficiency.

The successful candidate will manage multiple tasks, maintain records, and support engagement activities, while ensuring smooth office

Qualifications

• 3+ years of administrative, office coordination, or related experience.
• Proficient with Microsoft Office applications, including Excel, Word, Outlook, and Teams.
• Strong data entry, filing, document management, and organizational skills.
• Experience with SAP is considered an asset.
• Excellent interpersonal, written, and verbal communication skills.

Responsibilities

• Provide administrative support to plant leadership and site personnel.
• Manage calendars, schedule meetings, and coordinate appointments.
• Coordinate logistics for internal meetings, training sessions, and site events.
• Support employee engagement initiatives and company programs, including community campaigns.
• Welcome and coordinate site visitors, vendors, and contractors, ensuring site requirements and logistics are communicated effectively.
• Assist with travel arrangements, catering, room bookings, and meeting preparations.
• Prepare, format, proofread, and distribute correspondence, reports, presentations, and other business documents.
• Maintain electronic and physical filing systems and records.
• Coordinate administrative and financial support activities, including data entry, recordkeeping, invoice processing, purchase requisitions, and periodic banking deposits.
• Order and maintain office supplies and coordinate office service needs.
• Work collaboratively with teams across the business to provide timely administrative support.

Skills

MS Office

Excel

Data entry

Communication

Education

Post-secondary diploma in Administration

Tools

SAP

Microsoft Teams

Job description

TransAlta is seeking a highly organized Administrative Assistant to support the Centralia Plant day-to-day operations, coordinating calendars, meetings, travel, and visitor logistics. This on-site role requires strong communication, document management, and the ability to work across teams in a manufacturing environment with a focus on accuracy and efficiency.

The successful candidate will manage multiple tasks, maintain records, and support engagement activities, while ensuring smooth office