Senior .NET Application Security Engineer (Hybrid)

Cognizant; Halifax; Hybrid; CAD 80,000 - 94,000; Full time

Benefits offered by this job

Discretionary annual incentive

Wellbeing programs

Hybrid work arrangement

Job summary

Cognizant is seeking a Senior .NET Developer – Application Security to strengthen enterprise app security through vulnerability analysis, remediation, and secure development practices. You will work with architects, DevOps, developers, and cybersecurity stakeholders to deliver secure, compliant solutions.

The role includes hands-on vulnerability remediation, secure coding across .NET apps, and collaboration with cross-functional teams to ensure timely fixes.

Qualifications

• Must have a Bachelor's degree in a related field.
• Proven hands-on experience building enterprise .NET apps in secure SDLC contexts.
• Strong knowledge of OWASP Top 10 and secure coding practices.
• Experience with security testing tools (SAST/DAST/SCA) and remediation.
• Ability to analyze findings and implement long-term fixes efficiently.

Responsibilities

• Analyze and remediate application security vulnerabilities identified through testing.
• Implement secure coding practices across .NET/C# projects.
• Review findings from Checkmarx, Fortify, AppScan, and SonarQube.
• Perform root cause analysis and sustainable remediation.
• Collaborate with DevOps, architecture, and security teams to fix issues.
• Support Secure SDLC and ensure compliance with requirements.
• Conduct secure code reviews focusing on security and performance.
• Contribute to CI/CD pipeline improvements with automated security checks.
• Provide mentorship on secure development practices.

Skills

NET & C#

Security vulnerabilities

OWASP Top 10

SAST/DAST/SCA

Security scanning tools

CI/CD security

Independent remediation

Education

Bachelor's degree in Computer Science/IT/Software Engineering

Tools

Checkmarx

Fortify

AppScan

SonarQube

Job description

Cognizant is seeking a Senior .NET Developer – Application Security to strengthen enterprise app security through vulnerability analysis, remediation, and secure development practices. You will work with architects, DevOps, developers, and cybersecurity stakeholders to deliver secure, compliant solutions.

The role includes hands-on vulnerability remediation, secure coding across .NET apps, and collaboration with cross-functional teams to ensure timely fixes.