Klaviyo
Senior Software Engineer, Applied AI (Customer Agent)
$148K–$222K
Boston, MA +1 · Senior · Full-time · Posted Jun 4, 2026
- Location
- Boston, MA
Boston, Massachusetts, United States - Experience
- 7+ years in a software engineering role.
About the job
Build and scale Klaviyo’s AI-native Customer Agent platform and customer-facing experiences for personalized, autonomous customer engagement across channels.
What you'll do
- Design, build, and scale agent workflows, conversational experiences, integrations, retrieval systems, onboarding, observability, and multi-channel engagement.
- Lead technical decisions and projects, mentor teammates, and deliver tested, reliable, scalable systems.
- Collaborate across engineering, product, design, data science, and go-to-market teams to improve agent intelligence and customer outcomes.
What they ask for
- 7+ years of experience in a software engineering role.
- Strong experience developing end-to-end software solutions or extensive experience across front-end and back-end technologies.
- Experience building scalable, customer-facing systems in fast-moving product environments and leading projects with accountability for technical and business outcomes.
- Experience mentoring team members or driving team initiatives; experience conducting code reviews and maintaining robust testing and deployment cycles.
Nice to have
- Skills with Python and related technologies; skills with React and related technologies.
- Experience with conversational AI, workflow engines, retrieval systems, embeddings, eval frameworks, LLM orchestration, or AI infrastructure.
Pay
$148,000 — $222,000 USD (base salary)
Tools
Python, React, AWS
AI focus
Build an AI-native conversational customer agent platform, including agentic workflows, retrieval, integrations, and multi-channel experiences; apply LLMs and AI tooling to improve customer experiences and engineering workflows.
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