Are you looking for a role that will challenge you and allow you to work at the executive level? Do you enjoy managing priorities, coordinating complex information, and supporting senior leaders in a fast‑paced environment? Would you like to take on a leadership role where you help ensure smooth operations, effective communication, and high‑quality administrative processes? If so, our Chalk River office is looking for an Executive Administrative Assistant to support senior leadership — apply today!

What will you be doing!

• Executive & Office Coordination:
  • Coordinating the daily workflow of the Vice‑President, Compliance and Vice‑President, Mission Optimization offices.
  • Acting as a liaison between executive leadership and the line organization by requesting, reviewing, and distributing information and executive materials.
  • Providing direction to directors on administrative processes, reporting requirements, and documentation standards.
  • Managing complex and confidential materials independently with minimal instruction and guidance.
  • Arranging domestic and international travel, managing executive calendars, coordinating special meetings and site visits, and responding to written and verbal inquiries.
  • Drafting and preparing executive correspondence, briefing notes, presentations, and visual materials on behalf of the Vice‑Presidents.
  • Gathering, organizing, and maintaining sensitive and privileged information in electronic and hard‑copy filing systems.
• Document Control & Reporting Standards:
  • Preparing, issuing, retrieving, and maintaining records and documents in accordance with approved corporate and Quality Assurance protocols.
  • Ensuring executive‑level correspondence, briefings, and reports meet Canadian Nuclear Laboratories' documentation and governance standards.
  • Maintaining organized electronic filing systems to enable timely and efficient access to information.
  • Tracking reporting deliverables and providing status updates and supporting documentation for scorecards and projects.
• Human Resources & Financial Administration Support:
  • Handling sensitive and confidential Human Resources and financial information across all levels of the organization.
  • Supporting Vice‑Presidents, Directors, and Managers in preparing promotion and staffing cases.
  • Coordinating meetings and consolidating inputs for Human Resources processes, including performance management cycles.
  • Producing ad hoc reports and documentation to support Human Resources, Finance, and corporate initiatives.
• General Office Administration:
  • Tracking and ordering office supplies as required.
  • Performing photocopying and printing services.
  • Submitting and following up on maintenance and Information Technology service requests.
  • Preparing and submitting expense reports.
• Committee, Program & Continuous Improvement Support:
  • Supporting Chalk River Accountability Board administration by scheduling agenda items, coordinating meetings, maintaining SharePoint content, and tracking actions in Integrated Management Action and Performance Tracking.
  • Coordinating continuous improvement workshops and process review sessions.
  • Preparing agendas, participant lists, calendars, and meeting invitations.
  • Booking meeting spaces, virtual platforms, audio‑visual equipment, and supplies.
  • Assembling and distributing pre‑work materials, data packages, and templates.
  • Coordinating catering, room setup, and logistics for in‑person events.
• Administrative Leadership & Team Support:
  • Acting as an informal administrative lead within the Compliance and Mission Optimization line organization.
  • Leading the resolution of escalated administrative issues.
  • Coordinating the collection of required information and reports from administrators and line management.
  • Supporting other administrative staff in navigating procedures and processes.
  • Coordinating administrative workflows and deliverables rolling up to the Vice-President's offices.
  • Providing training, work instruction, coaching, and feedback to new or junior administrative staff. Other duties as assigned by your manager.

What we are looking for:

• Education
  • Post-secondary training in Office or Business Administration.
• Experience
  • 6-8 years of relevant experience.
• Knowledge, Skills & Abilities
  • Superior interpersonal skills, efficient and effective communication (written and oral) and organizational skills are essential, as well as great planning skills and a highly organized approach to work.
  • Must possess excellent business/administrative skills and have demonstrated the ability to quickly learn and utilize new applications that support business operations.
  • Advanced knowledge of Microsoft Office Products (Word, Outlook, PowerPoint, Excel) and SharePoint required.
  • Must be team-oriented with demonstrated ability to work well with others and promote a positive work environment.
  • Demonstrated leadership skills with the ability to train and develop others.
  • Demonstrated tact, diplomacy, trust and discretion in handling of sensitive and confidential information.
  • Ability and willingness to work with minimum supervision in a high-pressure, team environment that requires initiative, confidentiality, and demonstrates ability to work efficiently with all levels of personnel, both in person and on the telephone and in remote-work situations.
• Security Clearance Eligibility Required
  • Level 2 Secret requires a minimum of 7 years of verifiable history in Canada, Australia, New Zealand, the United States, and/or the United Kingdom. CNL implements security screening in accordance with the Treasury Board of Canada Secretariat's “Standard on Security Screening” and the “Policy on Government Security.”

Working Conditions:

• Working schedule: Five (5) days per week, seven and a half (7.5) hours per day for a thirty-seven and a half (37.5) hour work week.
• Demanding and diverse situations, stressful deadlines, and multiple priorities.
• Tight schedules and, on occasion, extra hours of work.

Why CNL?

Does the idea of working with a dynamic team across Canada to advance nuclear science and technology for a clean and secure world excite you? At CNL, we’re reinventing ourselves to be industry leaders—pioneering solutions to the problems that matter most.

From building the next generation of clean nuclear and hydrogen energy technologies, to developing targeted cancer treatments, to continuing our global leadership in environmental remediation—we are driven by impact, innovation, and purpose.

What We Offer: A Total Rewards Package

We believe in taking care of our people. Here’s what you can expect as part of our team:

• Paid time off: vacation, sick, personal, and floater days
• Benefits effective Day One – no waiting period
• Tuition support to help you keep learning and growing
• A defined-benefit pension plan or a defined-contribution pension plan, depending on your employee group, to support your long‑term financial security

Do Our Priorities Resonate with You?

• Delivering clean energy for today and tomorrow
• Restoring and protecting the environment
• Contributing to the health of Canadians

If so, you’ll feel right at home at CNL!

Location: Onsite

Located in the heart of the Ottawa Valley, our Chalk River site offers a beautiful natural setting with forests, lakes, and wildlife, right at your doorstep. Surrounded by welcoming communities such as Deep River, Petawawa, and Pembroke, you’ll have access to unparalleled outdoor adventures and a fantastic work-life balance.

Please note: This is a fully on-site position based at our Chalk River Laboratory in Ontario.

Our Commitment to Equity, Diversity & Inclusion

At CNL, we are committed to fostering an environment that promotes equity, diversity, and inclusion. We celebrate and welcome employees, stakeholders, and partners of all backgrounds and identities. Click here to read all about it!

We are proud to uphold a workplace culture grounded in our Core Values:

• Respect
• Teamwork
• Accountability
• Safety
• Integrity
• Excellence

These values drive our employment practices and ensure meaningful career development opportunities and accommodations for all employees.

CNL is an equal opportunity employer. If you require accommodation during any phase of the hiring process, please let us know via jobs@cnl.ca. All requests will be handled with confidentiality.

CNL operates on sites located on the traditional lands, waterways and ceded and unceded territories of Indigenous peoples. CNL recognizes and affirms all First Nations, Métis communities and Inuit in this land we now know as Canada. We acknowledge, respect and seek to better understand Indigenous history, rights and title on the lands where we work and develop projects. We honour and respect the importance of the relationship between Indigenous peoples and their lands, waters and territories.