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Added 22 days ago
Senior Microsoft 365 Solution Developer
Insi
Ottawa, ON
Full-time
We are seeking two Senior Microsoft 365 Solution Developers to support a client based in Ottawa/ON in modernizing legacy regulatory systems using a unified Microsoft 365 ecosystem. You will…
Added 17 days ago
AI Engineer
Insight
Remote, Canada
Full-time · Remote
6+ years of professional software development, including 2+ years in a senior/lead role.
Added 17 days ago
Montréal [hybrid] C# Electronic Trading Developer
QUANTEAM - North America (RAINBOW PARTNERS Group)
Montreal, QC
Full-time
We are looking for a C # Electronic trading Developer for one of our clients, an investment bank set in Montreal
Added 17 days ago
IT Reporting Specialist
MHI RJ Aviation Group
Mississauga, ON
Full-time
IT Reporting Specialist role is a highly visible role interfacing directly with senior business leaders, IT, and data platform teams and is instrumental in ensuring MHIRJ’s leaders have the…
Added 17 days ago
Senior Java Software Engineer
Smart IT Frame LLC
Toronto, ON
Full-time
🔹 Analyze existing C++/.NET legacy systems and contribute to modernization initiatives.
Added 17 days ago
Senior Software Engineer
European Tech Recruit
Toronto, ON · Greater Toronto Area, Canada
$120,000 to $160,000 CAD / year
Full-time
…that connect physical assets with enterprise systems. As a Senior Software Engineer (Full-Stack), you will join a small, highly collaborative engineering team building a next-generation…
Added 24 days ago
Senior Observability Engineer
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Montreal, QC
Full-time
…metrics collection, and log aggregation across Node.js and .NET microservices and event-driven…
Added 23 days ago
Développeur C#/.NET senior ou développeuse C#/.NET senior
Alithya
Toronto, ON
Full-time
As a C#/.NET Senior Developer, you'll contribute to the design, development, and evolution of enterprise applications supporting a variety of business and technology initiatives. Working…
Added 23 days ago
Senior Software Engineer (Trading Technology Software Development)
Pinnacle
Toronto, ON · North York, ON
Full-time
Job Title: Senior Software Engineer (Trading Technology Software Development)
Added 23 days ago
Services Center Mid/Senior .NET Software Developer
Jobgether
Canada
Full-time
…next steps. Our partner is looking for a Services Center Mid/Senior .NET Software Developer based in…
Added 24 days ago
Senior Software Engineer
BettingJobs
Toronto, ON
Full-time
BettingJobs is hiring a Senior Software Engineer a global leader in online gaming, to join a new backend engineering team in Toronto.
Added 25 days ago
Why Senior C# .NET Developers are like apples.
Mongoose Gray
Toronto, ON
Full-time
The Senior C# .NET Developer will work for a fast-paced SaaS scaleup.
Added 27 days ago
Senior Systems Analyst - Technology Services
LeverageTek Staffing Solutions
Ottawa, ON · Greater Ottawa Metropolitan Area
$105,000 to $120,000 CAD / year
Full-time
LeverageTek is actively seeking a Senior Technology Systems Analyst for a permanent, full-time position with its Ottawa/Gatineau-based customer.
Added 27 days ago
Senior / Lead .NET Backend API Developer
TechDoQuest
Canada
Full-time
Design, develop, and maintain backend APIs using .NET and Azure services.
Added 27 days ago
Intermediate AI Engineer (ID#5518)
New Value Solutions
Richmond, BC
Contract
…practices. The successful candidate will work closely with senior engineers, architects, cybersecurity teams, data engineers, and business stakeholders to deliver secure, scalable, and…
Added 27 days ago
Senior Software Engineer
Russell Tobin
Toronto, ON
$80 to $95 CAD / hour
Contract
Job Title: Software Developer - Full Stack - Senior
Added 27 days ago
Nvidia Omniverse Developer
Eclipse Automation
Cambridge, ON
Full-time
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 27 days ago
Developer, Digital Team
Toronto Police Service
Toronto, ON
Temporary
Experience in Client Object Model (CSOM). .Net Framework, C#, ASP.Net, Azure.
Added 23 days ago
Développeur(euse) logiciel sénior / Senior Software Developer
Eaton Corporation
Brossard, QC
Full-time
Eaton's Electrical Engineering Services and Systems division is currently seeking a Senior C# Software Developer to join its team that is currently working on the ADPS project. This role is…
Added 28 days ago
Senior Maximo Technical Specialist (13581)
Toronto Transit Commission (TTC)
Toronto, ON · Greater Toronto Area, Canada
$115,570 to $144,526.2 CAD / year
Full-time
Join the IT Services Department at an exciting time, as we are hiring for a Senior Maximo Technical Specialist to join our team.
Added 28 days ago
Senior Full Stack Software Developer
Robertson & Company Ltd.
Toronto, ON
Contract
Robertson is seeking a skilled Senior Full Stack Software Developer to join our client in support of an existing vacancy.
Added 28 days ago
Senior .NET Developer
Cognizant
Halifax, NS
$61,000 to $100,000 CAD / year
Full-time
Cognizant is seeking a Senior .NET Developer within 5-7 years of deep expertise in application security, vulnerability remediation, and secure software development practices. This role is…
Added 28 days ago
Senior Software Engineer
MPA Recruitment
Halifax, NS
Full-time
As a Senior Software Engineer (.Net) you’ll be responsible for developing high quality solutions which delight our customers and impact the lives of users worldwide. It’s a fast-paced…
Added 1 month ago
Développeur(euse) logiciel .NET / .NET Software Developer
Genetec
Montreal, QC
$65,000 to $115,000 CAD / year
Full-time
Travailler sur les composants FrontEnd et BackEnd du produit en utilisant toutes les technologies principales du Framework .NET
Added 23 days ago
Senior Technical Support Specialist
Open Text Corporation
Waterloo, ON
Other
Solid foundation working with Windows and Linux OS, and any scripting, (ie. Java, SQL, CGI, Perl, .NET or C++)

Cognizant

Senior .NET Developer

Halifax, NS, Canada

Pay: $61,000 to $100,000 CAD / year
Job type: Full-time
Apply by: Oct 3, 2026
Posting language: English
Posted: Sep 3, 2026

Apply About employer

Applications open in a new tab.

Original job description

Cognizant is seeking a Senior .NET Developer within 5-7 years of deep expertise in application security, vulnerability remediation, and secure software development practices. This role is ideal for a seasoned .NET professional who can independently analyze, prioritize, and remediate security vulnerabilities across enterprise applications with minimal onboarding support.

The ideal candidate will possess extensive hands-on experience reviewing security scan findings, implementing secure coding standards, and collaborating with cross-functional teams to improve the overall security posture of applications. From Day 1, the candidate should be capable of evaluating security reports and implementing effective remediation strategies across the software development lifecycle.

Key Responsibilities

Analyze and remediate application security vulnerabilities identified through SAST, DAST, SCA, and penetration testing assessments.
Review and address findings generated by security tools such as Checkmarx, Fortify, AppScan, SonarQube, and similar platforms.
Implement secure coding practices following OWASP Top 10 standards and industry best practices.
Perform root cause analysis of security vulnerabilities and provide sustainable remediation solutions.
Collaborate with architects, developers, DevOps engineers, and security stakeholders to ensure timely resolution of security findings.
Support Secure Software Development Lifecycle (SSDLC) initiatives and maintain compliance with security requirements.
Participate in peer code reviews with a focus on security, maintainability, and performance.
Integrate and improve automated security testing and remediation capabilities within CI/CD pipelines.
Provide technical guidance and mentorship to development teams on secure software design and vulnerability prevention.
Assist in establishing application security standards and promoting security awareness across project teams.

Required Qualifications

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent professional experience.
Strong experience developing enterprise applications using Microsoft .NET Framework and/or .NET Core/.NET 8+.
Extensive experience identifying and remediating application security vulnerabilities.
Strong understanding of:

OWASP Top 10
Secure Coding Practices
Authentication and Authorization
Session Management
Input Validation
Encryption and Data Protection

Hands-on experience with security scanning tools such as:

Checkmarx
Fortify
SonarQube
AppScan
Veracode or similar platforms

Experience analyzing findings from:

Static Application Security Testing (SAST)
Dynamic Application Security Testing (DAST)
Software Composition Analysis (SCA)
Penetration Testing Reports

Experience working in Agile software development environments.
Strong troubleshooting, analytical, and problem-solving skills.
Excellent verbal and written communication skills.

Work Authorization

Candidate must be legally authorized to work in Canada without the need for employer sponsorship now or in the future.

Why Apply?

At Cognizant, you will work alongside some of the world's leading technology experts to solve complex business challenges while helping organizations strengthen their security posture. We are committed to fostering an inclusive environment where innovation, collaboration, and professional growth are encouraged.

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. Consider your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting perspectives to this role.

Salary And Other Compensation

The annual salary for this position is between CAD $61,000 and CAD $100,000, depending on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.

Benefits

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

Medical, Dental, Vision, and Life Insurance
Paid Holidays plus Paid Time Off
401(k) Plan and Company Contributions
Long-Term and Short-Term Disability Coverage
Paid Parental Leave
Employee Stock Purchase Plan

Application Deadline

Applications for this position will be accepted until 9/17/2026. Candidates are encouraged to apply as early as possible, as the posting may close sooner if a sufficient pool of qualified applicants is identified.

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.

Please note: Some roles may require in-person interviews at Cognizant offices or client locations, depending on project or client requirements.

Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, disability, veteran status, or any other characteristic protected by applicable law.

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More about this job

Responsibilities

Analyze and remediate application security vulnerabilities identified through various scanning tools and penetration testing. Collaborate with cross-functional teams to implement secure coding standards and improve the overall security posture of enterprise applications.

Requirements

Requires a Bachelor's degree and 5-7 years of experience in .NET development with deep expertise in application security and vulnerability remediation. Must be proficient with security tools like Checkmarx or Fortify and have a strong understanding of OWASP Top 10 standards.

Skills

.NET Framework
.NET Core
Application Security
Vulnerability Remediation
Secure Coding
OWASP Top 10
SAST
DAST
SCA
Checkmarx
Fortify
SonarQube
AppScan
Veracode
Agile
CI/CD

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
Life Insurance
Paid Holidays
Paid Time Off
401(k) Plan
Company Contributions
Long-Term Disability Coverage
Short-Term Disability Coverage
Paid Parental Leave
Employee Stock Purchase Plan

Visa sponsorship

Not detected in the job text

Keywords

.NET Framework
.NET Core
.NET 8+
Application Security
Vulnerability Remediation
SSDLC
OWASP Top 10
SAST
DAST
SCA
Penetration Testing
Checkmarx
Fortify
AppScan
SonarQube
Veracode
Authentication
Authorization
Session Management
Input Validation
Encryption
Data Protection
Agile
CI/CD
Root Cause Analysis
Enterprise Applications
Software Engineering
IT Consulting
Secure Coding

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