Security Consultant performs ongoing client support for complex technical performance issues and develops recommendations to ensure adherence to service level agreements and customer service excellence. Consultant will specialize in Managed Detection and Response service on Microsoft technology stack, primarily Sentinel and Defender, and act as a subject matter expert. In addition, the Sr Consultant is required to provide input on how to drive process improvements, gain efficiencies, and create opportunities for improved workflow and automation.

The Sr

Consultant acts as a primary technical owner on the assigned accounts. This role requires strong hands-on proven working experience on various SIEM technologies. This should include deployment, management, customization, and optimization of SIEM.

Services

Delivery – 50% job weight Perform new customer onboarding. Act as an escalation point for SOC analysts as well as assigned customers in case of complex technical questions. Handle technical account management responsibilities for assigned customers. Conduct weekly, monthly and quarterly service review calls with assigned customers.

Perform Quality

Assurance reviews. Mentor team with technical advice / support. Recommend and implement process improvements in order to drive efficiencies, reduction of the average time to troubleshoot, and reducing false-positive alerts.

Embodies Trusted

Advisor techniques to build client’s trust and influence loyalty. Helps improve the business, proactively engages when service is inconsistent, or risk is identified. Identifies and manages out of scope requirements and facilitates the resolution.

Accountable for executing on identified recommendations to improve client’s security posture. Conducts technical, procedural and incident handling knowledge transfer training sessions. Contributes to the development of service definition and content packs.

Participate notably in assigned self-paced training. Attends training sessions or shadowing activities,



and obtains industry related certifications as determined by Manager. Bachelor's degree (B.A./or 3-year diploma in Engineering, Computer Science, or a Technology related field and 5 years of Security Support experience in a client-focused workplace, and/or working in security operations center, OR ~9 years total of Information Technology experience to include 5 years of Security Support experience in a client-focused environment, and/or working in security operations center. ~ At least 2 advanced or expert level certifications in Managed Security Services discipline, including but not limited to: CCIE Security; IBM QRadar Security: Administrator and Deployment Professional; Exabeam: Advanced or Principal Implementation Engineer; Microsoft SC-200, SC-100. ~ Demonstrated strong hands-on working experience on SIEM technologies. ~ The position is part of a 7-day per week, 24-hour per day managed services operations.

To provide the required coverage, must be available to work other shifts including weekends, holidays, and overtime, perform on-call duties. ~ Excellent prioritization and time management skills, including the ability to manage their time without supervision to focus on priorities and handle multiple tasks simultaneously. ~ Experience designing, implementing, and supporting IT infrastructure and Information Systems Design or support involving hardware, software and services at an enterprise level for at least one discipline in the Managed Security Services portfolio. ~ Direct involvement in working with internal and external teams to implement and troubleshoot complex configuration hardware, software and services.



~ Experience presenting ideas and solutions to clients and adapting presentation style to fit particular client situations. ~ Demonstrated ability to establish positive working relationships and conduct complex and important work critical to the organization in a team, consulting environment. ~ Proven ability to select resolutions and techniques that meet technical requirements within the context of best practices, and make recommendations to achieve targeted objectives. ~ Consistently achieves high levels of customer satisfaction. ~ Microsoft Sentinel is a plus. Other SIEM like QRadar, Splunk, Exabeam, SumoLogic is an asset. ~ Microsoft SC-200, SC-100 certifications are a plus. Each of our roles isassignedasalaryrange that is informed by multiple sources of market data.5 -hourworkweek, andpaid on a bi-weekly payroll schedule.

CDW is a Fortune 500 technology solutions provider that helps businesses, government, education, and healthcare organizations achieve what’s possible through technology. At CDW we act as one—building trust, speaking candidly, and working together to achieve more. We play to win—focusing on what matters most and delivering for our customers.

We believe meaningful work happens when people feel supported, heard, and empowered to contribute. That’s why we think of ourselves as coworkers, not just employees—working together to solve complex challenges and deliver real impact for our customers and communities. As a full‑stack, full‑lifecycle technology partner, CDW brings deep expertise, strong relationships, and broad industry knowledge to help turn ideas into outcomes.

When you join CDW, you become part of a collaborative environment where your work matters, your growth is supported, and your contributions help shape what’s next. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status or any other basis prohibited by state and local law. #

📌 Senior Security Consultant - Managed Services (Mississauga)
🏢 CDW
📍 Mississauga