Sr. Security Engineer – Offensive Security/Penetration testing

About the Position

Sr. Security Engineer – Offensive Security/Penetration Testing

Date published: Oct 08, 2026

Location: Toronto / Canada

Job category: Digital

Work model: Hybrid

As a Senior Security Engineer, you will make an impact by leading the implementation and optimization of Tenzai security solutions while strengthening enterprise Threat & Vulnerability Management (TVM) capabilities. You will be a valued member of the Cyber, Data & Security team and work collaboratively with Engineering, DevOps, and Risk & Compliance stakeholders.

Responsibilities

• Lead the onboarding, configuration, and ongoing maintenance of Tenzai security solutions across the enterprise
• Design and implement scalable security processes to support Tenzai deployment and ongoing operations
• Integrate Tenzai with existing security tools, platforms, and workflows to ensure seamless functionality
• Conduct proactive vulnerability assessments and ethical hacking activities to identify and mitigate risks
• Continuously enhance security posture through process optimization, automation, and tool improvements

Requirements

• 6–8 years of experience in Cybersecurity, Security Engineering, or a related field
• Hands-on experience with Tenzai implementation, configuration, and ongoing support
• Strong expertise in designing and implementing enterprise-scale security processes
• Practical knowledge of ethical hacking and penetration testing techniques
• Experience with vulnerability management tools and security orchestration platforms
• Ability to collaborate effectively across cross-functional teams

Nice to Have

• Experience working within Threat & Vulnerability Management (TVM) programs
• Familiarity with integrating security solutions into complex enterprise environments
• Strong process-oriented mindset with a focus on scalability and automation
• Excellent communication skills with the ability to translate technical concepts into actionable insights
• Certifications in cybersecurity or ethical hacking (e.g., CEH, OSCP)

We Offer

• Competitive salary ranging between $105,000 - $120,000 per year
• Hybrid work model requiring 2 to 3 days a week in a client or Cognizant office in Toronto, Ontario
• Cognizant’s discretionary annual performance-based bonus
• Comprehensive benefits supporting physical, mental, and financial wellbeing

About the Company

Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process, and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes, and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.

Additional employment information

Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government-issued ID during each interview.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status, or any other characteristic protected by federal, state, or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.

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Benefits that help you thrive and grow

Our benefits program is built with you in mind-so you can enjoy a fulfilling, balanced, and healthy life.

Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program, and more.

Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities to explore new technologies, industries, and locations-and build the skills you need to grow your career.

Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

Your path to Cognizant

Here’s what you can expect from our hiring process. Please keep in mind that it may vary by role and location. Explore our FAQs to learn more.

Step 1: Apply to the right opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

Step 2: Connect with your recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

Step 3: Show off your skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

Step 4: Decision time

Our team will then review each candidate’s potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us-but you can count on us to keep you updated.

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Portfolio Delivery Lead

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AVP of Delivery Excellence

Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.

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