Web Application Developer Intern Jobs in Waterloo, ON

You are as unique as your background, experience and point of view. Here, you'll be encouraged, empowered and challenged to be your best self. You'll work with dynamic colleagues - experts in their fields - who are eager to share their knowledge with you. Your leaders will inspire and help you reach your potential and soar to new heights. Every day, you'll have new and exciting opportunities to make life brighter for our Clients - who are at the heart of everything we do.

At Sun Life, we're driven by our Purpose: helping our Clients achieve lifetime financial security and live healthier lives. Our values shape how we work: caring, authentic, bold, inspiring, and impactful.

When you join Sun Life, you'll work with passionate colleagues and empowering leaders who support your growth and celebrate your contributions, so you can make a meaningful difference in our Clients' lives.

Discover how you can make a difference in the lives of individuals, families and communities around the world.

Job Description:

About the Role: Software Engineer - .NET

Join the Platforms and Engineering group and help shape the future of Sun Life's technology. We're looking for a talented Software Engineer- .NET to own meaningful projects that drive real impact for our clients' financial security and wellbeing. You will have genuine autonomy to innovate and bring your creative ideas to life within an Agile environment that values fast learning and iterative improvement.

What Makes This Different?

You'll work in an environment where you're empowered to experiment, fail fast, and iterate toward excellence. We value creative thinking and give you real ownership over the impact you deliver.

What will you do?

• Own end-to-end solutions - Collaborate with designers, business analysts, and testing specialists to design and deliver high-quality applications that solve real client problems.
• Drive technical decisions - Participate actively in requirements definition, design reviews, and SDLC planning; your insights will shape project direction and timelines.
• Modernize legacy systems - Evaluate and upgrade existing applications to adopt current technologies and frameworks to reduce technical debt.
• Bridge teams seamlessly - Coordinate with onshore and offshore teams to ensure excellence across development, testing, and implementation.
• Champion quality and security - Embed information security standards into every solution you build while maintaining application performance and stability in production environments.
• Lead through problem-solving - Take ownership of incident analysis, resolution, and performance optimization; escalate strategically when needed.

What do you need to succeed?

Core Requirements:

• Minimum of 3-year professional IT experience demonstrating proficiency with Agile practices and full application development lifecycle expertise.
• Advanced proficiency with C#, .NET, ASP.NET, REST API, SOAP-based web services, Crystal Report, and Powershell.
• Strong SQL and SQL Server knowledge with solid relational database experience.
• Proven expertise with CI/DevOps tools (TFS, Git, Artifactory, NuGet) and unit test automation.
• Experience with Razor and Blazor to build user interface.
• Experience with modern development tools including GenAI and Copilot.

Bonus Qualifications:

• Financial services or insurance industry background.
• Experience with Java.

Additional Requirements

• Participate in rotating on-call support for production environments.
• Participate in periodic weekend / after-hours work to support project implementations and system upgrades.
• Flexibility for occasional after-hours work and periodic travel between Sun Life locations.

Unique Requirements:

This role requires Reliability Status Clearance. In addition to a law enforcement inquiry and a credit check, as part of your application, the Government of Canada will ask if you lived or travelled outside of Canada for 6-consecutive months during the last 5 years, and you must account for all activities during this time.

What's in it for you?

• Being a member of the Sun Life family, a group of people united by our Purpose: to help Clients and Employees achieve lifetime financial security and live healthier lives.
• An environment of continuous learning, development, and improvement.
• Internal mobility is supported by leaders who are dedicated to fueling your professional growth.
• As a hybrid organization, you and your leader use business and Client needs to choose where you work, at home or in the office.

The Base Pay range is for the primary location for which the job is posted. It may vary depending on the work location of the successful candidate or other factors. In addition to Base Pay, eligible Sun Life employees participate in various incentive plans, payment under which is discretionary and subject to individual and company performance. Certain sales focused roles have sales incentive plans based on individual or group sales results.

Diversity and inclusion have always been at the core of our values at Sun Life. A diverse workforce with wide perspectives and creative ideas benefits our Clients, the communities where we operate and all of us as colleagues. We welcome applications from qualified individuals from all backgrounds.

Persons with disabilities who need accommodation in the application process, or those needing job postings in an alternative format, may e-mail a request to thebrightside@sunlife.com.

We are proud to be a hybrid organization that offers our employees the choice and flexibility to work from both the office and virtually based on the needs of the business, our Clients and you.

We may use artificial intelligence to support candidate sourcing, screening, interview scheduling.

We thank all applicants for showing an interest in this position. Only those selected for an interview will be contacted.

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