Software Engineer I

Klaviyo· Boston, USA

Posted November 9, 2026

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Experience
Fresher welcome
Pay
$104K – $156K per year
Education
Currently pursuing a degree in Computer Science, Engineering, Data Science, Math/Statistics or a related field
Location
Boston, USA
Work mode
On-site
Job type
Full-time

About this role

Klaviyo builds marketing software that helps online brands use their own customer data. This early-career role works across frontend and backend, shipping and running real services with support from senior engineers.

What you will do

  • Own your code from writing to testing, release and monitoring
  • Build and ship features that follow team best practices
  • Debug problems in local and production setups
  • Write documentation and help during incidents
  • Work closely with teammates and take feedback
  • Use AI to build smarter workflows

What the employer expects

  • 2 earlier internships or co-ops with production code
  • Studying CS, Engineering, Data Science, Math or a related field
  • Graduating in December 2025 or May/June 2026
  • Some of: Python, Django, TypeScript, React, MySQL, Kafka, Redis, AWS, Terraform
  • Has tried AI tools in work or personal projects
  • No immigration sponsorship

Benefits

  • Bonus plan
  • Equity
  • Health and wellbeing benefits

Skills

  • Python
  • Django
  • TypeScript
  • React
  • MySQL
  • Kafka
  • Redis
  • AWS
  • Terraform

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The application opens on Klaviyo careers page (Greenhouse). Dev Portal Notes does not collect your application or charge a fee.

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