Software Engineer (multiple)

Klaviyo is a company that empowers creators by making first-party data accessible and actionable. They are seeking Software Engineers to assist in building and enhancing product features, contributing to the product roadmap, and participating in software design under supervision. Responsibilities Assist in building and enhancing Klaviyo product features Contribute to product roadmap Write, test, and debug issues in development, test and production Participate in software design for features and bug fixes under direct supervision Create and refactor databases to withstand high query volumes Debug performance issues and improve application performance Create new applications with scalability in mind Skills Master's degree in Computer Science, Computer Engineering, Software Engineering, Electronics Engineering, or Electrical Engineering Completion of a university level course, research project, thesis, or internship involving Python Completion of a university level course, research project, thesis, or internship involving AWS cloud technologies Completion of a university level course, research project, thesis, or internship involving Agile Scrum methodology Completion of a university level course, research project, thesis, or internship involving UI/UX Benefits Participation in the company’s annual cash bonus plan Variable compensation (OTE) for sales and customer success roles Equity Sign-on payments A comprehensive range of health, welfare, and wellbeing benefits based on eligibility Company Overview Klaviyo is an automation and email platform designed to help grow businesses. It was founded in 2012, and is headquartered in Boston, Massachusetts, USA, with a workforce of 1001-5000 employees. Its website is Company H1B Sponsorship Klaviyo has a track record of offering H1B sponsorships, with 9 in 2026, 47 in 2025, 29 in 2024, 24 in 2023, 27 in 2022, 21 in 2021, 8 in 2020. Please note that this does not guarantee sponsorship for this specific role.