About the role#
As a Software Engineer Co-op, you will join an engineering team to build scalable systems that power our product and infrastructure. You will work alongside experienced engineers to solve technical problems and ship code that reaches thousands of customers worldwide. This role is embedded within our engineering teams, where you will take on projects that have a direct impact on our users.
We are an AI-first organization, and you will be expected to use AI tools to support your work, learn faster, and improve efficiency. You will start with our onboarding program, Base Camp, to learn about our product and engineering practices before joining your assigned team.
What you'll do#
- Own features used by customers to reach consumers and grow their businesses.
- Take responsibility for the mission, technical direction, and operation of your projects.
- Write, test, ship, and improve code throughout its full lifecycle.
- Build and ship features to a high standard.
- Debug issues locally and in production environments.
- Contribute to documentation and support your team during incidents.
- Work with teammates, ask questions, share ideas, and incorporate feedback.
- Use appropriate tools, including AI, to improve your work and build smarter systems.
What you'll need#
- Currently pursuing a degree in Computer Science, Computer Engineering, Data Science, Mathematics, Statistics, or a related field.
- Graduation date in December 2027, May 2028, or June 2028.
- At least one previous software engineering internship or co-op with hands-on development experience.
- Experience with some of these technologies: Python, Django, TypeScript, React, Go, MySQL, Cassandra, ClickHouse, Kafka, Redis, AWS, and Terraform.
- An interest in working across the full stack, from back-end to front-end.
- Experience or interest in digging into performance and scalability issues.
- A preference for shipping code early and often.
- Experience experimenting with AI in work or personal projects.
Location & details#
- This is a paid, full-time co-op position for the Spring 2027 term.
- The role is based on-site at our Boston, Massachusetts headquarters.
- Work is performed in the office 5 days a week.
- This position is not eligible for immigration sponsorship.
About Klaviyo
Klaviyo is a public company that provides a customer relationship management platform for businesses. Founded in 2012, the firm operates out of Boston, Massachusetts. Its software combines data analytics with marketing automation to help brands manage customer interactions. The company serves over 176,000 brands across various sectors. It employs between 1,001 and 5,000 people.
How to get in at Klaviyo
Securing an internship at Klaviyo requires speed because early applicants often reach recruiters before the candidate pool becomes unmanageable. Intern Insider sends an instant alert the moment a role matching your target is published, helping you apply among the first. This timing ensures your resume is seen before the pile grows. You can also improve your response rates by reaching out to the people behind the roles. Intern Insider surfaces the recruiters at Klaviyo so you can contact them directly to ask about the position or a referral. This approach is more effective than simply submitting an application into a general queue.



