Senior AI Platform Engineer, Customer Agent

Klaviyo; Boston (MA); On-site; USD 216,000 - 324,000; Full time

Job summary

Klaviyo in Boston is seeking a Senior Staff Engineer for the Applied AI Customer Agent to set technical and product direction for a production-grade, end-to-end agent system. You’ll own architecture, scale, and reliability while remaining hands-on to solve the hardest AI challenges with real impact.

You’ll partner with product, design, data science, and go-to-market teams to shape the roadmap, ship live systems, and mentor through design reviews.

Qualifications

• Architected, built, and supported a production agentic system end-to-end.
• Experience securing agents against misuse at scale.
• Hands-on coding and architecture decisions through production incidents.
• Able to lead cross-functional teams and influence roadmaps.

Responsibilities

• Set technical and product direction for Customer Agent core platform.
• Tackle hardest technical problems: orchestration, evals, guardrails, memory/context.
• Write and ship code, review designs, and make decisive calls.
• Mentor through design reviews and build reusable frameworks.
• Partner with product, design, data science, and GTM to shape roadmap.

Skills

Production systems

Orchestration

Evaluation frameworks

Guardrails

Hands-on coding

Technical leadership

Job description

Klaviyo in Boston is seeking a Senior Staff Engineer for the Applied AI Customer Agent to set technical and product direction for a production-grade, end-to-end agent system. You’ll own architecture, scale, and reliability while remaining hands-on to solve the hardest AI challenges with real impact.

You’ll partner with product, design, data science, and go-to-market teams to shape the roadmap, ship live systems, and mentor through design reviews.