Intern, Backend Software Engineer - Team Interstellar - Winter 2027

For 30 years, we’ve been on a mission to change banking for good. We challenge the traditional bank stereotype, fostering a culture where innovation thrives and bold ideas are celebrated.

You’ll be empowered to grow your career in a supportive environment where you can own and shape your journey on your own terms. You’ll redefine what’s possible by contributing to work that impacts millions of Canadians, taking ownership of your decisions and outcomes, supported by mentors who will push you to think bigger and challenge the status quo. 

Are you ready to redefine what’s next?

As a backend engineer intern, 

• You will help design, build, and scale these platforms. 

• You will write backend code for production systems dealing with high traffic, strict regulatory rules, and large data transformations.

• You will build new API features, write automated tests, and improve deployment pipelines.

• You will gain hands-on experience with cloud infrastructure, ETL processes, and modern deployment practices.

• You will collaborate with other engineers, product managers, and architects to deliver features. Senior team members will provide technical guidance and mentorship.

Our Tech Stacks:

• Languages: Java, TypeScript, SQL, Python

• Frameworks: Spring Boot, Middy (AWS Lambda middleware), Spark

• Cloud: AWS (Lambda, ECS Fargate, DynamoDB, SAM, CloudWatch, SNS)

• Data: DynamoDB, Snowflake

• Testing: Vitest, JUnit, Cucumber (BDD), Mockito

• CI/CD: Jenkins (OnePipeline/Bogie), Docker

• →

  Write backend code to meet story acceptance criteria.

• →

  Build and maintain high-volume APIs and ETL data pipelines.

• →

  Write automated tests and integrate them into deployment pipelines.

• →

  Participate in code reviews, design sessions, and Agile ceremonies.

• →

  Collaborate with product and engineering stakeholders to implement new system features.

• Will obtain a Bachelor’s degree or higher from December 2026 or later.

• Familiarity with backend application development and APIs.

• Good communication, presentation, and writing skills.

• Good understanding of testing fundamentals.

• Able to work within a team setting and actively participate in team discussions.

• Please include your resume and unofficial transcripts in one PDF in the attachment section under Resume/CV when you create your profile to apply.

• Experience with backend languages such as Java, TypeScript, or Python.

• Experience with version control technology (Git).

• Experience with cloud infrastructure (AWS) or CI/CD pipelines.

• Experience working with databases or data pipelines.

Here you’ll uncover personal strengths, explore new interests and make an impact that matters. The work you’ll find here will keep you inspired and guide you in your career journey. 

We embrace the responsible use of artificial intelligence (AI) to enhance the candidate experience and streamline our recruitment processes. However, no hiring decisions are made using AI as every hiring decision is made by our hiring managers, business interviewers, and recruitment professionals. Our teams are equipped with training that empowers them to use AI responsibly.

If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-800-304-9102 or via email at ARCanada@capitalone.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.

For technical support or questions about Capital One's recruiting process, please send an email to Careers@capitalone.com

Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).