Klaviyo

Senior Software Engineer - Profiles, Lists and Segments

Klaviyo
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3 months ago
Boston, MA, USASenior
H1B sponsor

Base Salary

$148k - $222k/yr

Responsibilities

  • Design and build scalable systems for customer profiles, lists, and real-time segments.
  • Create easy-to-use, highly performant editors and intuitive customer-facing workflows.
  • Collaborate closely with Product, Design, Data Science, and platform teams.
  • Define scope and translate complex data and user-experience problems into practical implementations.
  • Conduct code reviews and maintain automated end-to-end and integration testing practices.
  • Mentor team members and drive initiatives that help the team develop new skills.
  • Lead complex, multi-quarter cross-team projects and remain accountable for their outcomes.

Requirements

  • At least 5 years of full-stack development experience.
  • Strong hands-on experience with React, Redux, JavaScript, HTML, and CSS, plus familiarity with general web best practices.
  • A track record of delivering and shipping work powered by or accelerated through AI.
  • Experience with code reviews and robust automated testing, including end-to-end and integration testing with tools such as Cypress and pytest.
  • Experience with RESTful and GraphQL APIs and with evolving APIs and data models.
  • Proven ability to lead complex, multi-quarter projects involving cross-team collaboration and accountability for outcomes.
  • Ability to own work from requirements and edge cases through implementation and testing and solve difficult problems collaboratively.

Benefits

  • Comprehensive health, welfare, and wellbeing benefits based on eligibility.
  • Potential annual cash bonus, equity, and sign-on payments in addition to base salary.
  • The role may require up to 10% travel, coordinated in advance, for onboarding, client or partner work, team meetings, and industry events.

Tech Stack

AWSCSSCypressDjangoGraphQLHTMLJavaScriptMySQLpytestPythonRabbitMQReactRedisReduxTerraformTypeScript
Klaviyo

About Klaviyo

1,001-5,000 employees

Klaviyo builds a subscription SaaS platform that lets e-commerce and consumer brands use first-party data to run targeted email, SMS, and push campaigns, with built-in automation and analytics. The product also includes B2C CRM features for segmentation, A/B testing, and customer lifecycle workflows. Founded in 2012 and headquartered in Boston, it is a public company (NYSE: KVYO) used by brands such as Mattel and Glossier.

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