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Added 17 days ago
DevSecOps – MTL / DevSecOps – Montréal
Aduna Global
Montreal, QC
Full-time
Aduna's Security team protects the company, our CSP partners, and the data flowing through our APIs, while enabling engineering to move fast and adopt AI safely. As a Senior Security…
Added 20 days ago
Lead Software Engineer, AI & Emerging Tech
CPP Investments | Investissements RPC
Toronto, ON
Full-time
You’ll partner with cross-functional teams like Information Security, Engineering, Risk, Legal and Compliance teams to define and agree on AI platform controls, implement those controls…
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 20 days ago
Cloud Security Engineer - Advanced
Zebra Technologies
Mississauga, ON
Full-time
Working knowledge of secure SDLC, DevSecOps, CI/CD pipelines, Terraform or similar infrastructure-as-code tooling, container and Kubernetes security, API security, and secure configuration…
Added 20 days ago
Senior DevSecOps Engineer
Wissen Technology
Calgary, AB
Full-time
Own and manage core AWS Networking and Identity - VPCs, Transit Gateways, Direct Connect, VPN, Route 53, Security Groups, NACLs.
Added 20 days ago
Development Team Lead
Lifemark Health Group
Brampton, ON
$100,000 to $120,000 CAD / year
Full-time
…development work while championing cloud-native development, DevSecOps, CI/CD, automated testing, observability, application security, and AI-assisted software…
Added 18 days ago
Directeur(trice) principal(e) de l’architecture de solutions/Senior Director, Solution Architecture
McKesson
Montreal, QC
Full-time
Expérience avec les plateformes cloud, les stratégies API, les microservices, l’architecture événementielle (event-driven), le DevSecOps ou l’ingénierie de plateformes.
Added 20 days ago
Development Team Lead
Lifemark Health Group
Brampton, ON
$100,000 to $120,000 CAD / year
Full-time
…development work while championing cloud-native development, DevSecOps, CI/CD, automated testing, observability, application security, and AI-assisted software…
Added 20 days ago
Bilingual Enterprise Solutions Architect
Arctiq
Montreal, QC
Full-time
…requires a broad understanding of all practices (Enterprise Security, Modern Infrastructure, and Platform Engineering) with depth in Platform Engineering disciplines including Developer…
Added 18 days ago
Server Engineer
Black Duck Software, Inc.
Calgary, AB
…productivity. Black Duck, a recognized pioneer in application security, provides SAST, SCA, and DAST solutions that enable teams to quickly find and fix vulnerabilities and defects in…
Added 6 days ago
Sr. Manager, Software Development (SaaS)
Open Text Corporation
Richmond Hill, ON
Other
…to get in and shape the direction of the next generation of developer tools and environments that OpenText is building for OCP…
Added 10 days ago
Senior Full Stack Developer - AI & Developer Productivity
RBC
Toronto, ON
Full-time
Embed AI-enabled engineering practices to improve developer productivity, reduce time-to-market, and raise code quality through model-assisted scaffolding, test generation, and…
Added 21 days ago
Solution Architect
Aviso
Toronto, ON
$150,000 to $168,000 CAD / year
Full-time
Act as a technical lead in project/product development utilizing agile methodologies and DevSecOps automation practices
Added 19 days ago
Senior Full Stack Developer - AI & Developer Productivity
Royal Bank of Canada
Toronto, ON
Full-time
Embed AI-enabled engineering practices to improve developer productivity, reduce time-to-market, and raise code quality through model-assisted scaffolding, test generation, and…
Added 19 days ago
Senior Solutions Engineer, Mid-Enterprise
Docker
Remote, Canada
Full-time · Remote
Docker has been one of the most loved brands in developer tooling, trusted by more than 20 million monthly users and over 20 billion container image pulls. From solo founders to the world's…
Added 23 days ago
Senior DevOps Engineer (Python & GitHub Platform) - Hybrid
Cognizant
Halifax, NS
$49,000 to $95,500 CAD / year
Full-time
Ensure adherence to DevSecOps, security, compliance and operational standards
Added 24 days ago
Senior Application Technical Lead
IDEKA Services Conseils
Toronto, ON · Greater Toronto Area, Canada
Full-time
The role combines application design, technical leadership, architecture, and developer enablement, with a strong focus on Front-End architecture and Cloud technologies.
Added 24 days ago
Consultant/Senior Consultant, Cloud Security
Deloitte
Toronto, ON
Full-time
DevSecOps Platforms and Security Scanning Tools: Experience with tools and platforms that integrate security into the development process, along with expertise in security scanning tools to…
Added 19 days ago
Senior DevOps Engineer
SOVRA
Remote, Canada
Full-time · Remote
…AI-driven development workflow that requires a disciplined, security-minded engineer to own the platform layer end to…
Added 24 days ago
Technical Cyber Risk Assessment Manager, Deloitte Global Technology
Deloitte
Toronto, ON
Full-time
Validate actual control effectiveness by reviewing live configurations, security tooling outputs, logs, and architecture implementations.
Added 20 days ago
Mainframe Developer
TD
Toronto, ON
Full-time
Validate all GitHub Copilot-generated or AI-assisted output through developer review, approved coding standards, testing, security controls, and established change-management processes.
Added 24 days ago
Oliver Wyman - Principal Architect
Oliver Wyman
Toronto, ON
Full-time
…platforms, architectures, technical debt, operating models, security posture, and implementation…
Added 24 days ago
GIS Developer
Bridgenext
Toronto, ON · Greater Toronto Area, Canada
$115,000 to $130,000 CAD / year
Full-time
Bridgenext is seeking an experienced GIS Developer to design, develop, test, maintain, and enhance geospatial applications and data-management solutions supporting timberland, agriculture,…

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

About The Role

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 enterprise application security through vulnerability analysis, remediation, and the implementation of secure coding practices. You will collaborate with cross-functional teams to integrate automated security scanning into CI/CD pipelines and provide technical mentorship on secure development.

Requirements

Candidates must have a bachelor's degree and strong experience in .NET/C# development with a deep understanding of OWASP standards and security scanning tools. Proven ability to perform root cause analysis and remediate vulnerabilities identified via SAST, DAST, and SCA is required.

Skills

.NET
C#
Application Security
OWASP Top 10
SAST
DAST
SCA
Penetration Testing
Checkmarx
Fortify
AppScan
SonarQube
CI/CD
Secure SDLC
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
CSSLP
GWAPT
GSEC
Security+
Azure
AWS
Threat Modeling
Secure Architecture
Risk Assessment
Vulnerability Remediation
Enterprise Applications
Software Engineering

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