Senior Systems Analyst

Connect with us LinkedIn, Instagram, Facebook, Twitter Thinking about a change? Join EllisDon We recognize that the construction industry is changing at a rapid pace, and we continually strive to be at the forefront. Our core values empower people to deliver great careers to one another and develop creative solutions for complex problems on some of the most exciting projects. It doesn’t matter what your expertise and craft is—there are no boundaries. We are a group of professionals with a variety of expertise within pre‑construction, construction, and post‑construction. To learn more, check out our Cradle to Grave services and hear from our team directly about what a career at EllisDon could look like for you. As you can see, we are a diverse bunch. Above all, we are a group of individuals with unique experiences and at EllisDon, we choose to celebrate the strength in our differences, every day. EllisDon’s commitment to Inclusive Diversity is to work together to create an environment where every employee feels safe to be their true and authentic self. Ultimately, EllisDon’s purpose is to provide people with similar values the opportunity to achieve their full potential; to deliver that opportunity for great careers to one another; and to contribute meaningfully to the community we share with others. In case you’re curious, here’s what the industry thinks of us and some of the impacts we've made to the communities we work in, and our latest Impact report. You As a Senior Systems Analyst Will Develop and maintain enterprise architecture models, standards, and best practices for systems and applications. Lead the design and implementation of data protection strategies, to safeguard against unauthorized access, modification, and deletion, including encryption, secure storage, IAM controls. Provide expert technical guidance on security and compliance frameworks (e.g., ISO 27001, NIST, GDPR). Drive architecture and strategic planning for scalable, modular, and integrated technology solutions. Collaborate with cross‑functional teams to ensure seamless integration of systems and data protection solutions. Analyze system performance and security metrics; recommend and implement enhancements. Prepare and present executive‑level reports on infrastructure health, risk posture, and compliance status. Diagnose and resolve complex configuration and troubleshooting issues across multi‑vendor, multi‑site environments. Administer and optimize Microsoft 365 ecosystem (Exchange Online, SharePoint, Teams, Intune) for scalability and long‑term growth. Oversee cloud‑based solutions (Azure, AWS, SaaS platforms), including DNS services, patching, and upgrades. Manage NTFS and network share permissions, ensuring proper access control and governance. Create and maintain comprehensive documentation for corporate systems and processes. Stay current with emerging technologies and evaluate their applicability to enterprise environments. Mentor and provide technical leadership to junior team members. Foster a culture of continuous improvement, automation, and operational excellence. Is this the right role for you? Bachelor’s degree in Computer Science, Information Technology, or a related field. 10+ years of full‑time, industry‑level experience as a Systems & Infrastructure Analyst or equivalent senior role. Minimum 6+ years of IT support experience, including 2+ years administering Microsoft 365 (M365/O365), Microsoft Entra ID, Intune, and Active Directory Services. Extensive experience in administration and maintenance of Active Directory, Group Policy (GPO), DHCP, DNS, DFS, ADFS, SMB, NTFS permissions. Strong knowledge of storage technologies (Azure Cloud, SAN, NAS, DAS, Converged & Hyper‑Converged) and cloud‑based data protection solutions. Hands‑on experience with NASUNI hybrid cloud solutions is an asset. Expertise in Microsoft 365 suite and Azure infrastructure, including Data Governance, Identity Management, and Single Sign‑On (SSO). Proficiency in Windows Server (2019, 2022, 2025) installation, configuration, patching, and security hardening. Experience with SQL databases and Azure SQL Instance administration. Strong understanding of Security Governance, Compliance, Incident Management, Change Management, and Risk Assessment. Proven ability to manage hybrid enterprise networks (on‑premises and cloud). Familiarity with PowerShell scripting for automation and administration (asset). Excellent problem‑solving, analytical, and troubleshooting skills, with attention to detail and superior time/project management. Self‑motivated, able to work independently, and take initiative in a fast‑paced environment. Commitment to continuous learning and adoption of emerging technologies, especially in enterprise and construction environments. Go ahead and be yourself. We'll pay you for it We are an equal opportunity employer. We welcome people of any age, culture, subculture, gender identity or expression, sexual orientation, nationality, ethnicity, race, size, mental or physical status, veteran status, religion, language, political opinion, working‑style preference, family status, education, and socio‑economic status. The EllisDon core values of Integrity and Mutual Respect welcomes everyone, at work and in the community, and our value of Mutual Accountability, means that we all have a role to play. As an EllisDon employee, this will ultimately be your commitment to Inclusive Diversity. Accommodation for Applicants with disabilities will be made during the recruitment process when requested. We are committed to providing a positive candidate experience and ensuring timely updates are provided to all candidates. If you haven’t already, be sure to create a profile on our Careers page here to remain up to date on the status of your application and learn about new career opportunities as they arise. Get notified about new Senior System Analyst jobs in Mississauga, Ontario, Canada. Referrals increase your chances of interviewing at EllisDon by 2x Seniority level Mid‑Senior level Employment type Full‑time Job function Information Technology Industries Construction #J-18808-Ljbffr