Sr. Windows System Administrator (Email Server) – OpenText – Mississauga, ON, CA This Full time on site position offers great opportunities for career growth.
OpenText is a global leader in information management, where innovation, creativity, and collaboration are the key components of our corporate culture. As a member of our team, you will have the opportunity to partner with the most highly regarded companies in the world, tackle complex issues, and contribute to projects that shape the future of digital transformation. AI-First. Future-Driven. Human-Centered. At OpenText, AI is at the heart of everything we do—powering innovation, transforming work, and empowering digital knowledge workers. We are hiring talent AI can't replace to help us shape the future of information management. Join us.
OpenText™ Cybersecurity SMB& Consumer solutions help organizations protect their most valuable and sensitive information with products, services, and training. The OpenText Cybersecurity portfolio provides a broad portfolio of data security and data protection solutions that help companies prevent, detect, respond, and recover from the latest cybersecurity threats. As a global leader in secure information management, OpenText empowers businesses to stay ahead of the ever-evolving cyber threats. OurCybersecurity Enterpriseportfolio is formidable, offering innovative solutions that safeguard organizations from malicious attacks, data breaches, and cyber vulnerabilities. By joining our team, you'll be at the forefront of developing and implementing state-of-the-art security technologies, protecting critical assets and sensitive information for clients worldwide.
Your Impact Are you a Windows Systems Administrator that excels in what you do and can help make our team better? You like working with physical servers, Hyper‑V, VMs and Azure? We do that too.



We handle all aspects of mail flow for our spam filtering and Microsoft Exchange products, server upgrades, migrations, and retiring the old hardware. We also work with various email MTAs, SCOM, Virtual Machine Manager, IIS, Octopus for automation, and troubleshooting applications on the servers. On‑call rotation will be required for 24x7x365 support of production environments.
What The Role Offers Manage infrastructure of Windows Servers, Hyper‑V/Virtual Machine manager, Azure, and a fleet of VMs.
Troubleshooting SMTP, TLS, and various email transport issues.
Working with F5 load balancers to ensure mail flow is evenly weighted between the servers.
Assisting our software development department as they deploy current services and build new applications.
Troubleshoot IIS issues.
Responsible for security and patching of the systems.
What You Need To Succeed Highly detail-oriented with ability to manage multiple issues simultaneously.
10+ years of Windows server management experience.
Bachelor’s degree in Information Systems or equivalent experience.
Strong knowledge of enterprise deployment tools such as Octopus or Ansible.
Expertise in DNS, Active Directory, SMTP, TLS, load balancing, networking, virtualization, cybersecurity, Azure, and Microsoft SQL.
Working knowledge of Linux is a plus.
Benefits Compensation: At OpenText, we offer a thoughtfully designed benefits package that supports your physical, emotional, and financial wellbeing.



As you move through the hiring process, we’re happy to provide more details about our compensation programs, including variable and commission compensation opportunities for eligible roles, vacation entitlement, and paid time off.
Salary Range: $81600 - $122400 CAD per annum; Depending on the candidate’s education, experience, skills, geographical location, and alignment with internal equity and external market, actual salary may vary and be higher or lower than the range posted.
Commitment to Diversity and Inclusion OpenText's commitment to diversity and inclusion surpasses legal requirements, evident in ourEqual Employment Opportunity Statement of Policy which promotes a respectful and empowering environment for employees of all backgrounds, culture, national origin, race, color, gender, gender identification, sexual orientation, family status, age, veteran status, disability, religion, or other basis protected by applicable laws.
Accommodation Request If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please submit a ticket atAsk HR.
Our proactive approach fosters collaboration, innovation, and personal growth, enriching OpenText's vibrant workplace.
AI Usage Disclosure As part of our commitment to transparency, we use artificial intelligence (AI) tools to assist in various stages of our recruitment process, including resume screening, candidate matching, interview scheduling, and communications. These tools are designed to improve efficiency, reduce bias, and enhance candidate experience. All decisions regarding hiring are made by qualified human professionals, and we continuously monitor our AI systems to ensure fairness and compliance with applicable regulations.

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📌 Sr. Windows System Administrator (Email Server) at OpenText (Ontario)
🏢 opentext
📍 Ontario