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Senior .NET Full-Stack Engineer

00069121801

About the role

We are seeking a highly qualified .Net FSE with min 7+ years’ experience developing and building high-performing, scalable, enterprise applications. As a .Net FSE, you will play a pivotal role in designing, developing, and maintaining high-quality software solutions. You will leverage your expertise in ASP .NET, .Net Framework, SQL, IBM MQ, and Azure cloud to drive innovation and efficiency. This role offers the opportunity to work in a dynamic environment, contributing to impactful projects that align with the company’s vision.

In this role, you will:

· Backend & API Development — Design and implement robust ASP.NET Core Web APIs and microservices that meet complex enterprise requirements with high performance, security, and maintainability, while also building and consuming REST-based and legacy service integrations using ADO.NET and .NET Framework components.

· Database Engineering — Develop, optimize, and review SQL queries, stored procedures, and database schemas using SQL Developer to ensure reliable data access and optimal response times for both transactional and reporting workloads.

· Front-End Development — Create and enhance ASP.NET MVC and Web Pages user interfaces using JavaScript and jQuery to deliver intuitive, accessible, and responsive experiences aligned with product expectations.

· Messaging & Integration — Integrate and manage IBM MQ-based messaging flows to enable reliable asynchronous processing, fault tolerance, and graceful error handling across distributed systems.

· DevOps & Tooling — Leverage Git and Azure DevOps for branching, pull requests, code reviews, and automated build/release pipelines, while responsibly using GitHub Copilot to boost productivity without compromising code quality or security.

· Testing, Collaboration & Documentation — Maintain Postman collections and automated API tests for functional and regression coverage, collaborate within an Agile team across the full sprint cycle, and document technical designs, flows, and runbooks to support smooth handover and consistent operations.

· Production Support, Reliability & Observability (SRE) — Provide production support by applying SRE practices (defining SLIs/SLOs and analyzing error budgets), using Dynatrace and related observability tooling to monitor health, trace transactions, and proactively tune performance before user impact, and performing root cause analysis of incidents by correlating logs, metrics, traces, and database statistics to implement targeted fixes and preventive measures that reduce recurrence and improve resilience.

Work model: Hybrid

We strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position open to qualified applicants in Toronto, ON, requesting 3 - 4 days at office per week. Regardless of your working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.

Please note: A few of our roles may require in-person interviews at Cognizant offices or client locations, depending on project or client needs.

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:

· 7+ Years of proven experience.

· Primary - ASP .NET Core, MVC, Microservices, Web API, MSSQL, Helios, Yaml, GitHub.

· Secondary - Front End Framework (React/Angular, jQuery), IBM MQ, SRE practices, deep observability, L2/L3 Support Procedures, Vendor/Cross team Collaboration and Agile delivery.

*Please note, this role cannot offer visa transfer or sponsorship now or in the future*

These will help you stand out:

· Hold a bachelor’s degree in computer science or related field.

· Possess the ability to work independently and manage multiple tasks effectively.

· Bring a proactive approach to learning and adopting new technologies as needed.

· Excellent communication skills.

· Problem solving skills.

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.

Salary and compensation:

The annual salary for this position will be between $60,000 to $115,000 per year depending on the experience and other qualifications of the successful candidate. This position is also eligible for Cognizant’s discretionary annual incentive program and stock awards, based on performance and subject to the terms of Cognizant’s applicable plans.

Applications will be received by June 22nd, 2026.

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

· Medical/Dental/Vision/Life Insurance.

· Paid holidays plus Paid Time Off.

· 401(k) plan and contributions.

· Long-term/Short-term Disability.

· Paid Parental Leave.

· Employee Stock Purchase Plan.

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.


What we offer

  • The chance to work with impact. Here, you’re empowered to bring your biggest thinking to help our company and clients improve everyday life.
  • Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
  • The opportunity to thrive on a high caliber team with heart. We celebrate each other’s experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
  • A comprehensive total rewards package, including a competitive salary and a pension plan with matching contributions.
  • Flexible health and financial benefits to support you and your eligible dependents—from day one.
  • True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.  

About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.

Other employment-related information
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.

Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.

Your path to Cognizant

Wondering what to expect after you apply? Here’s a peek at our recruitment process—and keep in mind that not all candidates advance through every step and the process may vary depending on your role and location.

Your Application Midnight Blue RGB

Step 1: Application

Find an open role that aligns with your skills and career goals and show us why you’re the person for the job. Consider joining our Talent Community if you don’t find the right opportunity.

Phone Call Midnight Blue RGB

Step 2: Recruiter call

If one of our recruiters sees a fit, they’ll set up a short introductory call to learn more about you and how your experiences and skills align with the role.

Step 3: Interview(s)

If you and our team would like to continue the process, you’ll meet with one of our hiring managers. Some roles may also require technical assessments and/or client interviews.

Step 4: Final decision

Our hiring team will then review each candidates’ potential to succeed in the role. This process may take some time because we want to get it right—but you can count on us to keep you updated.

Benefits that help you thrive and grow

Our teams achieve incredible things when they feel fully supported. That’s why our benefits program is built around the diverse needs of our people—so they can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

Financial wellbeing

We regularly review market data to ensure compensation is competitive and reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, discount programs, etc.

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Physical and mental wellbeing

Physical and mental wellbeing

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

Your Career, Your Way
Your career, your way

Your career, your way

With 90% of our associates building skills through GenAI training, job shadowing, industry certifications and more, you have everything you need to build a full career.

Professionals
Real-world impact

Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

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