Klaviyo
Sr. Staff Engineer, Applied AI (Customer Agent)
$216K–$324K
Boston, MA +1 · Senior Staff · Full-time · Posted Aug 12, 2026
- Location
- Boston, MA
Boston, Massachusetts, United States
About the job
Sets technical and product direction for Klaviyo’s Customer Agent, building and operating a production conversational AI platform for brands’ customer support.
What you'll do
- Lead platform direction and architecture from development through production.
- Personally solve hard agent-system problems, ship code, review designs, and handle production issues.
- Build reusable frameworks, mentor through design reviews, and shape the roadmap with cross-functional partners.
What they ask for
- Has architected, built, scaled, and supported a production agentic system end to end, including orchestration, evaluations, guardrails, and failure handling.
- Has owned production agents through launch, scale, incidents, and ongoing operations, including security against misuse and abuse.
- Has set technical and product direction for a product area and delivered architecture or frameworks adopted by other teams.
- Remains hands-on in coding, architecture decisions, and production debugging; communicates trade-offs across technical and business audiences.
Nice to have
- Experience running a multi-tenant agent platform at production scale.
- Experience building 0-to-1 products, or with production evaluation systems, AI observability, or human-in-the-loop workflows for LLM-powered products.
Pay
$216,000 — $324,000 USD base salary
Tools
AI, LLM
AI focus
Build and operate a production conversational AI agent, including orchestration, evaluation, guardrails, memory and context, reliability, and failure handling.
Model-written summary · the original posting is authoritative