Administrative Assistant

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

Location: Centralia, WA, US

Company: TransAlta

Job Type: Full time - Salaried

Work Arrangement: Full Time On-Site

Administrative Assistant, Centralia

WHO WE ARE

Our Power, Your Possibilities

At TransAlta, we don’t just generate electricity-we generate opportunity. As one of Canada’s largest publicly traded power generators, we’ve been powering communities for over 100 years across Canada, the U.S., and Australia. Our diverse energy portfolio and passionate team are driving the transition to a cleaner, more sustainable future.

We believe in the power of purpose, the strength of collaboration, and the value of continuous learning. If you’re ready to make a real impact in a dynamic industry, you bring the energy and we’ll provide the platform.

TransAlta is seeking a highly organized and proactive Administrative Assistant to support the day-to-day operations of our Centralia Plant. This role is ideal for someone who enjoys variety, building relationships, and helping teams stay organized and productive.

As a key member of the site team, you will provide administrative, coordination, and logistical support to plant leadership and employees. You will help ensure office operations run smoothly, support employee engagement activities, coordinate vendor visits, and maintain accurate records and documentation.

This is a full-time, salaried position based out of our Centralia Plant in Centralia, WA.

A DAY IN THE LIFE

• 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 assisting with community and charitable campaigns (such as United Way initiatives), distributing forms, tracking responses, and coordinating event logistics.
• 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 and address day-to-day operational requirements.

ABOUT YOU

• Post-secondary diploma in Administration is strongly preferred; however, consideration may be given to candidates with proven experience and demonstrated administrative capabilities.
• 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 working with SAP is considered an asset.
• Excellent interpersonal, written, and verbal communication skills.
• Proven ability to manage multiple priorities and adapt to changing business needs.
• High level of accuracy, attention to detail, and professionalism.
• Ability to work independently while maintaining strong collaboration with a broader team.
• Experience supporting employees in an industrial, operations, manufacturing, or plant environment is considered an asset.

THE PERKS

• Annual and long-term incentives available for select roles
• 401(k) plan with 5% fixed employer contributions, up to 5% company matching, and additional employee contribution
• Benefits program for you and your family which includes medical, dental, vision, and life insurance
• Generous vacation and personal days
• Learning and development programs
• Employee recognition and rewards
• Annual wellness allowance

A reasonable estimate of the pay range isUSD$46,200 - USD$64,000 at the time of this posting. Individual pay is determined by job-related skills, relevant experience, education, and/or training. The top end of the range is reserved for individuals with exceptional, directly relevant expertise and a demonstrated history of strong performance within TransAlta. This range reflects base pay only and does not include our competitive bonus program and benefits.

At TransAlta, we’re driven by a Culture of Results, Learning, and Purpose. We prioritize psychological safety, wellbeing, inclusion, and belonging - creating a space where everyone can thrive. We believe that diverse perspectives drive innovation and progress, and we’re committed to building a workplace where you can be your authentic self.

WHAT TO EXPECT

The successful candidate may be required to complete background checks appropriate to the role and may include criminal record, education and employment verification or credit checks. ‘Safety sensitive positions’ will be required to complete pre-employment testing.

Due to the high volume of applications we receive, only those progressing will be contacted.