Senior Software Engineer, Composer AI ProductNew$222K

The opportunity

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements.

What you'll do

  • A proven track record of building high-quality products and systems, with: pride in writing clean, maintainable, high-quality code.

  • + years of experience in a software engineering role.

  • Strong experience developing end-to-end software solutions or extensive: experience across both front-end and back-end technologies.

  • Experience building scalable, customer-facing systems in fast-moving product: environments - we operate like a startup inside of Klaviyo.

  • Experience leading projects and being accountable for technical and business outcomes.

  • Experience mentoring team members or driving initiatives that help the team grow and learn new skills.

What they're looking for

  • Experience conducting code reviews and maintaining a robust testing and deployment cycle.
  • Curiosity and enthusiasm for AI-native product development, including: practical experience experimenting with LLMs, AI tooling, or agentic workflows in professional or personal projects.
  • Excitement about leveraging AI to improve engineering velocity, customer: experiences, and operational workflows.
  • A strong product mindset and willingness to collaborate cross-functionally to: solve ambiguous problems with urgency and pragmatism.