Cognizant

Sr. Software Engineer - Penetration Testing & Red Teaming

Cognizant$105K — $120K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 6-8 years of experience in security engineering or software development with a strong security focus
  • Advanced software development skills with proficiency in languages like Python, JavaScript, or Java
  • Hands-on experience with penetration testing methodologies and tools
  • Experience in leading red team engagements
  • Familiarity with offensive security tools such as Burp Suite and Metasploit
  • Strong understanding of security principles across applications, infrastructure, and systems

Responsibilities

  • Design and develop custom security tools and automation scripts
  • Solve complex engineering challenges in cybersecurity and software development
  • Build integrations between security tools and enterprise platforms
  • Conduct comprehensive penetration testing to identify vulnerabilities
  • Support red team operations to simulate real-world attack scenarios

Benefits

  • Hybrid work model offering flexibility
  • Support programs for a healthy work-life balance
  • Discretionary annual performance-based bonus
  • Comprehensive benefits supporting physical, mental, and financial wellbeing
Full Job Description
About the role

As a Senior Software Engineer - Penetration Testing & Red Teaming, you will make an impact by bridging software development and offensive security to strengthen enterprise defenses. You will be a valued member of the Threat & Vulnerability Management (TVM) team and work collaboratively with engineering, DevOps, and cybersecurity stakeholders.

In this role, you will:
  • Design and develop custom security tools and automation scripts to support penetration testing and vulnerability assessment initiatives
  • Solve complex engineering challenges that require deep expertise in both software development and cybersecurity
  • Build integrations between security tools and enterprise platforms to improve security workflows and automation
  • Conduct comprehensive penetration testing across applications, infrastructure, and systems to identify vulnerabilities
  • Participate in and support red team operations to simulate real-world attack scenarios and validate security controls

Work model:

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role's business requirements, this is a hybrid position requiring 2-3 days a week in a client or Cognizant office in Toronto, Ontario. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered:
  • 6-8 years of experience in security engineering or software development with a strong security focus
  • Advanced software development skills with proficiency in one or more programming languages (e.g., Python, JavaScript, Java, or similar)
  • Hands-on experience with penetration testing methodologies and tools
  • Experience participating in or leading red team engagements
  • Familiarity with offensive security tools such as Burp Suite, Metasploit, and similar platforms
  • Strong understanding of application, infrastructure, and system security principles

These will help you stand out:
  • Experience developing custom security tooling or automation frameworks
  • Deep understanding of attacker tactics, techniques, and procedures (TTPs)
  • Exposure to cloud and container security environments
  • Strong problem-solving mindset with the ability to think like an attacker while building secure systems
  • Excellent communication skills with the ability to clearly document findings and provide remediation guidance

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply-even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out and bring fresh perspectives to this role.

We regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between $ 105,000 - $120,000 per year. Where the successful candidate may fall within the range depends on relevant education, work and/or management experience and other business-related and job-necessary qualifications. This position is also eligible for Cognizant's discretionary annual performance-based bonus, as well as benefits that support your physical, mental and financial wellbeing.

Cognizant will only consider applicants for this position who are legally authorized to work in Canada without requiring employer sponsorship, now or at any time in the future.

Applications will be accepted until June 28, 2026.

About Cognizant

TriZetto is Powering Integrated Healthcare Management. With technology solutions touching more than half the U.S. population today, TriZetto is uniquely positioned to drive the convergence of core benefit administration, care management and constituent engagement. TriZetto provides premier information technology solutions that enable payers and other constituents in the healthcare supply chain to improve the coordination of benefits and care for healthcare consumers.

Cognizant Careers

Join the vibrant team at Cognizant, a leading provider of information technology, consulting, and business process services. Cognizant is not just a company; it's a community where innovation, leadership, and diversity are valued and where every team member is encouraged to thrive.

Work You’ll Do

At Cognizant, we are dedicated to helping the world's leading companies build stronger businesses — not just for today but for the future. This commitment to growth and sustainability is what makes Cognizant a unique place to advance your career.

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Whether you're looking for an entry-level position or a more senior role, Cognizant offers a plethora of job opportunities that could be perfect for you. Our hiring process is designed to be transparent and engaging, ensuring that every candidate is able to showcase their skills and potential fully.

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Kickstart your career with Cognizant’s internship programs. These opportunities allow you to gain hands-on experience, develop your professional skills, and network with experts in your field. An internship at Cognizant is a stepping stone to full-time employment and a chance to see how your studies apply in the real world.

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Cognizant is committed to the professional growth of its employees. With access to cutting-edge training, leadership programs, and diversity initiatives, you can build a career that’s equipped for the demands of tomorrow’s business landscape.

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Our employees enjoy a range of benefits designed to support their physical, financial, and emotional well-being. Cognizant’s culture is built on a foundation of respect and inclusivity, where everyone’s contribution is valued. Join us and be part of a team that celebrates diversity and is driven to make a positive impact on the world.

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Learn more about Cognizant
Size
340,400 employees
Market Cap
$28.7 billion
Industry
Net Income
$1.3 billion
Founded
1994
5 Year Trend
+6.5%
Revenue
$16.6 billion
NASDAQ

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