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Added 18 days ago
Développeur Senior C# / WPF
Amaris Consulting
Brossard, QC
Full-time
You will be supporting different projects through your expertise as Senior C# / WPF Developer.
Added 16 days ago
Sr Software Developer
Royal Bank of Canada
Toronto, ON
Full-time
We are seeking a Senior Java Developer to design, build, and maintain high-performance applications that facilitate basket trading & handle streaming data within Global Equities business.…
Added 19 days ago
Fullstack .NET Engineer | igaming | Base + Benefits
Pentasia
Toronto, ON
$100,000 to $135,000 CAD / year
Full-time
My client is seeking a highly skilled Senior Full Stack .NET Developer to join a fast-paced technology team responsible for developing and enhancing mission-critical platforms. This role…
Added 19 days ago
Senior Dotnet Developer
Tata Consultancy Services
Toronto, ON
$90,000 to $110,000 CAD / year
Full-time
As a Senior Software Developer, you will design, develop, and implement robust internal applications and platforms while leading technical development initiatives.
Added 21 days ago
Sr Software Developer
RBC
Toronto, ON
Full-time
We are seeking a Senior Java Developer to design, build, and maintain high-performance applications that facilitate basket trading & handle streaming data within Global Equities business.…
Added 20 days ago
Principal Enterprise Architect
RBC
Toronto, ON
Full-time
Minimum of 12 years of experience in Microsoft .NET platform development or Java/Linux development.
Added 17 days ago
Principal Enterprise Architect
Royal Bank of Canada
Toronto, ON
Full-time
Minimum of 12 years of experience in Microsoft .NET platform development or Java/Linux development.
Added 19 days ago
Senior Solution Designer, Information Technology
CIBC Mellon
Toronto, ON · Greater Toronto Area, Canada
Full-time
Reporting to the Director, Solution Design the Senior Solution Designer, will be play a key role in shaping CIBC Mellon’s technology and digital landscape. They will be responsible for…
Added 1 month ago
Senior Fullstack Developer
DATA Communications Management Corp
Richmond Hill, ON
$90,000 to $110,000 CAD / year
Full-time
As a Senior Fullstack Developer, you will take ownership of complex, end-to-end development features across our platform. You'll work across the stack from data models and APIs to the React…
Added 19 days ago
Senior Software Engineer
European Tech Recruit
Toronto, ON
Full-time
Senior Software Engineer – Cloud Platform & Data Architecture | .NET | Azure | AI
Added 19 days ago
Senior Software Engineer
European Tech Recruit
Toronto, ON
Full-time
🚀 Senior Software Engineer – Full-Stack & Frontend | React | TypeScript | Azure
Added 17 days ago
Senior Full Stack Engineer
RBC
Toronto, ON
Full-time
Design, develop, and maintain RESTful APIs and microservices using C# and .NET framework.
Added 17 days ago
Senior Full Stack Engineer
Royal Bank of Canada
Toronto, ON
Full-time
Design, develop, and maintain RESTful APIs and microservices using C# and .NET framework.
Added 17 days ago
Senior Backend Software Developer - Data Integration
Coveo
Montreal, QC
As a senior software developer, you’ll tackle a wide range of technical challenges, from building reusable solutions for data transformation and enrichment to evolving distributed cloud…
Added 19 days ago
Senior Technical Solution Architect – Dynamics 365 CRM
Endeavour Solutions Inc. -Dynamics 365 ERP, CRM & Cloud
Mississauga, ON
Full-time
In this senior technical leadership role, you will define solution architecture, lead technical design workshops, and guide the implementation of complex Dynamics 365 CRM and Power Platform…
Added 19 days ago
Senior .NET Developer – Application Security
Cognizant
Halifax, NS
Full-time
As a Senior .NET Developer, you will make an impact by strengthening the security posture of enterprise applications through vulnerability analysis, remediation, and secure software…
Added 19 days ago
Senior .NET Developer – Application Security
Cognizant
Halifax, NS
Full-time
As a Senior .NET Developer, you will make an impact by strengthening the security posture of enterprise applications through vulnerability analysis, remediation, and secure software…
Added 19 days ago
Senior .NET Developer – Application Security
Cognizant
Halifax, NS
Full-time
As a Senior .NET Developer, you will make an impact by strengthening the security posture of enterprise applications through vulnerability analysis, remediation, and secure software…
Added 19 days ago
Staff Engineer - Backend & Architecture
MapsPeople
Toronto, ON
Full-time
This is a senior technical leadership role for an engineer who thinks beyond individual services and features. You will help define our backend architecture, drive technical standards…
Added 26 days ago
Sr. Programmer Analyst - Research Computing - Regular Full-Time 2026-18484 (2026-18484)
Sunnybrook
Toronto, ON
Full-time
Summary: Reporting to the Research Computing Manager, the Senior Programmer Analyst plays a key role in developing, supporting, and optimizing critical research and operational applications…
Added 17 days ago
Sr. DevOps Engineer
Borrowell
Remote, Canada
$100,000 to $150,000 CAD / year
Full-time · Remote
We are seeking a Senior DevOps Engineer to design, automate, and manage the mission-critical cloud infrastructure supporting our marketplace. As a key member of our DevOps team, you will…
Added 17 days ago
Nvidia Omniverse Developer
Eclipse Automation
Cambridge, ON
The Senior NVIDIA Omniverse Developer will work under the Omniverse lead developer to design, build, test, and scale Omniverse-based tools for industrial automation. This person will be…
Added 17 days ago
Senior Full-Stack Developer
Flinks
Remote, Canada
Full-time · Remote
We're hiring Senior Full-Stack Developers to build and own the client-facing product experiences at Flinks. You'll work across the Angular/TypeScript front end and the C#/.NET back end,…
Added 20 days ago
Senior Technical Architect, Application Development & Support
Canadian Standards Association
Toronto, ON
Full-time
Acts as lead developer and technical design authority for applications in scope, setting coding standards, design patterns, branching strategy, and definition of done for internal and…
Added 17 days ago
Senior Software Engineer, Backend
Tilt Finance
Remote, Canada
$190,000 to $230,000 CAD / year
Full-time · Remote
The Opportunity: Senior Software Engineer, Backend

Cognizant

Senior .NET Developer – Application Security

Halifax, NS, Canada

Pay: The annual salary for this position ranges from $80,000 to $93,500, depending on experience and qualifications.
Job type: Full-time
Apply by: Oct 1, 2026
Posting language: English
Posted: Sep 1, 2026

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Original job description

As a Senior .NET Developer, you will make an impact by strengthening the security posture of enterprise applications through vulnerability analysis, remediation, and secure software development practices. You will be a valued member of the application development and security team, collaborating with architects, DevOps engineers, developers, and cybersecurity stakeholders to deliver secure, resilient, and compliant solutions.

In This Role, You Will

Analyze and remediate application security vulnerabilities identified through SAST, DAST, SCA, and penetration testing assessments.
Implement secure coding practices across .NET applications in alignment with OWASP standards and industry best practices.
Review, investigate, and resolve security findings generated by tools such as Checkmarx, Fortify, AppScan, SonarQube, and similar platforms.
Perform root cause analysis of security issues and implement sustainable remediation strategies to prevent recurrence.
Collaborate with development, architecture, DevOps, and security teams to ensure timely resolution of identified vulnerabilities.
Support Secure SDLC initiatives and ensure compliance with organizational and client application security requirements.
Conduct code reviews with a strong focus on security, maintainability, and application performance.
Contribute to CI/CD pipeline improvements by integrating automated security scanning and remediation processes.
Provide technical guidance and mentorship on secure development practices and vulnerability prevention.

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 3 days a week in a client or Cognizant office. Regardless of your working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.

What You Need To Have To Be Considered

Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field.
Strong hands-on experience developing enterprise applications using .NET and C#.
Proven experience identifying, analyzing, and remediating application security vulnerabilities.
Deep understanding of OWASP Top 10 vulnerabilities, secure coding principles, and application security best practices.
Experience working with SAST, DAST, SCA, and penetration testing reports.
Hands-on experience with security scanning tools such as Checkmarx, Fortify, AppScan, SonarQube, or equivalent.
Experience performing root cause analysis and implementing long-term security fixes.
Familiarity with CI/CD pipelines and integrating automated security controls within software delivery processes.
Ability to work independently and begin reviewing and remediating security findings with minimal onboarding support.

These will help you stand out

Security-related certifications such as CSSLP, GWAPT, GSEC, Security+, or similar.
Experience securing applications hosted in cloud environments such as Azure or AWS.
Knowledge of DevSecOps methodologies and automated compliance frameworks.
Experience with threat modeling, secure architecture reviews, and security risk assessments.
Strong communication skills with the ability to influence technical and non-technical stakeholders.

Compensation

The annual salary for this position ranges from $80,000 to $93,500, depending on experience and qualifications. This role is also eligible for Cognizant’s discretionary annual incentive program, subject to performance and applicable plan terms.

Disclaimer: The salary, other compensation, and benefits 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.

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 as someone who can bring new and exciting things to this role.

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More about this job

Responsibilities

The role focuses on strengthening the security posture of enterprise applications through vulnerability analysis and remediation. You will collaborate with cross-functional teams to implement secure coding practices and integrate automated security scanning into CI/CD pipelines.

Requirements

Candidates need a bachelor's degree and strong hands-on experience in .NET/C# development and application security remediation. Proficiency with security scanning tools and a deep understanding of OWASP standards are required.

Skills

.NET
C#
Application Security
OWASP Top 10
SAST
DAST
SCA
Vulnerability Remediation
Secure SDLC
CI/CD
Checkmarx
Fortify
AppScan
SonarQube
Root Cause Analysis
Code Review

Benefits

Discretionary Annual Incentive Program
Wellbeing Programs

Visa sponsorship

Not detected in the job text

Keywords

.NET
C#
Application Security
OWASP
SAST
DAST
SCA
Penetration Testing
Checkmarx
Fortify
AppScan
SonarQube
Secure SDLC
CI/CD
DevSecOps
Azure
AWS
CSSLP
GWAPT
GSEC
Security+
Threat Modeling
Secure Architecture
Risk Assessment
Vulnerability Analysis
Root Cause Analysis
Enterprise Applications
Software Engineering
Cybersecurity
Compliance

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