About the Role
The Senior Systems Engineer contributes to operational excellence through technology and solid engineering practices. They ensure the reliability, security, and continuous improvement of the company’s IT platforms, supporting operational efficiency and long-term development.
Key Responsibilities
Collaborate with the team and management to ensure project delivery and effective incident resolution, including participation in on-call support outside regular hours.
Manage the full lifecycle of engineering projects, performing complex technical tasks and proposing solutions that follow best practices.
Maintain and enhance the overall health and reliability of IT environments.
Diagnose and resolve a wide range of technical issues using standards, documentation, and industry best practices.
Support product and service owners by analyzing requirements and contributing to the writing and review of detailed technical specifications.
Continuously improve processes and procedures to optimize team efficiency and service quality.
Document system architectures, workflows, and operational procedures for technical teams and management.
Maintain accurate system inventories and configuration records.

Your future duties and responsibilities

Required Qualifications
Bachelor’s or Master’s degree in engineering, computer science, or related field.
Over 10 years of relevant experience, with proven senior-level contributions on complex projects.
Expertise in email security platforms such as Cisco IronPort; knowledge of Proofpoint is a plus.
Strong experience with Microsoft messaging platforms: Exchange Online / Microsoft 365, Exchange 2016/2019/SE.
Excellent understanding of email security mechanisms: SPF, DKIM, DMARC, anti-spam, anti-malware.
Proficiency in PowerShell scripting and command-line administration.
Experience with Active Directory, Group Policies (GPO), DNS, load balancers, ADFS, Entra ID, and SAML.
Ability to administer and optimize Windows Server 2016/2019 environments.
Familiarity with virtual machines, vendor appliances, and standard server engineering tools.
Strong diagnostic, troubleshooting, and root cause analysis skills.
Experience with ServiceNow and change/incident management processes.
Exposure to system integration projects in mergers & acquisitions contexts.

Required qualifications to be successful in this role

Nice-to-Have
Strong team spirit with willingness to share knowledge and support colleagues.
Ownership mindset with strong problem-solving skills, creativity, and continuous improvement orientation.
Clear, structured, and effective written and verbal communication.
Professional attitude: reliability, accountability, policy adherence, and readiness to take on additional responsibilities.
Languages
French and English (English proficiency required for collaboration with U.S.-based teams).

CGI offre une estimation raisonnable de la fourchette salariale pour ce poste. Le calcul de cette fourchette dépend de divers facteurs, notamment le niveau de compétence, le marché géographique, l’expérience, la formation ainsi que les licences et certifications professionnelles. Les décisions en matière de rémunération dépendent des particularités de chaque cas. Une estimation raisonnable de cette fourchette salariale se situe entre 60,000$-115,000$ ce poste est vacant.

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Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

At CGI, we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

To learn more about accessibility at CGI, contact us via email. Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries.

Come join our team—one of the largest IT and business consulting services firms in the world.