Job Description Overview AtkinsRéalis is one of Canada's largest private sector nuclear engineering groups. We have been providing a wide range of services to the nuclear industry in Canada and around the world for more than 60 years. We are proud to be the steward of Canadian CANDU nuclear technology. Reporting to the Functional Manager, Administrative & Executive Support, or Administrative Support Supervisor, the Administrative Assistant is responsible for performing a variety of complex administrative tasks requiring a thorough knowledge of company and/or project policies and procedures. This position requires the ability to work independently and as part of a team, exercising judgment and initiative, and may be required to provide support for several departments. This role will be based in Mississauga, ON. Under minimal supervision and with a high degree of confidentiality and diplomacy, the Administrative Assistant is accountable for providing senior-level administrative support to ensure the smooth and successful operation of the office and associated projects. Your role Providing comprehensive and proactive administrative support, exercising sound judgment, discretion, and confidentiality in support of managers, project teams, and multiple departments as required. Managing calendars, priorities, and communications (including email monitoring where applicable), anticipating conflicts and responding effectively to changing deadlines, priorities, and project/business needs. Coordinating internal and external meetings and events, including scheduling, preparation of materials, minute-taking, and follow-up actions. Acting as a professional liaison with internal stakeholders and external clients, suppliers, partners, and government contacts, handling sensitive information with integrity and diplomacy. Administering travel arrangements, expense reports, timesheets, and reporting activities, ensuring accuracy and compliance with corporate and project policies, procedures, and codes of conduct. Maintaining accurate project records, databases, documentation and knowledge management systems. Supporting special assignments and ad hoc initiatives as required, contributing to continuous operational efficiency and effective project delivery. Fiscal responsibility as required. Extent of Public Contact: Customers, suppliers, partners, government agencies, contractors, and all levels of management and personnel. About you Post-secondary education or related business diploma/certificate. Minimum of 3 years of administrative experience. Experience working in a consulting firm and/or knowledge of engineering terminology and document types considered an asset. Experience with ORACLE considered an asset. Experience with Concur considered an asset. Working knowledge of SharePoint and Document Control modules considered an asset. Advanced computer skills with Microsoft Office (Word, PowerPoint, Excel, Calendar). Demonstrated ability to handle sensitive issues with confidentiality and professionalism. Highly organized, detail-oriented, and able to manage multiple priorities. Excellent verbal and written communication skills. Rewards & benefits Explore the rewards and benefits that help you thrive – at every stage of your life and your career at AtkinsRéalis in Canada. Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs. Make the most of diverse opportunities for training and professional development to grow your skills and expertise. And take advantage of our hybrid working culture and generous time-off policies to balance a fulfilling career with your personal life. Be rewarded. Find out more. About AtkinsRéalis We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people. Find out more. Additional information AtkinsRéalis cares about your privacy. AtkinsRéalis and other subsidiary or affiliated companies of AtkinsRéalis (referred to throughout as “AtkinsRéalis”) are committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data. By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice. Appropriate accommodation will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA). Successful applicants will be notified about AtkinsRéalis’ accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process. Worker Type Employee Job Type Regular At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences. Created by the integration of long-standing organizations dating back to 1911, AtkinsRéalis is a world-class engineering services and nuclear company dedicated to engineering a better future for our planet and its people. We create sustainable solutions that connect people, data and technology to transform the world's infrastructure and energy systems. We deploy global capabilities locally to our clients and deliver unique end-to-end services across the whole life cycle of an asset including consulting, advisory & environmental services, intelligent networks & cybersecurity, design & engineering, procurement, project & construction management, operations & maintenance, decommissioning and capital. The breadth and depth of our capabilities are delivered to clients in strategic sectors such as Engineering Services, Nuclear and Capital. News and information are available at Atkinsrealis or follow us on LinkedIn.