Klaviyo
Lead Engineer, Applied AI (Customer Agent)
$176K–$264K
Boston, MA +1 · Full-time · Posted Oct 8, 2026
- Location
- Boston, MA
Boston, Massachusetts, United States
About the job
Leads the technical and product direction of a core Customer Agent area, building and operating production agentic AI systems while remaining hands-on with engineering.
What you'll do
- Set architecture and product direction, and build and ship the system through production.
- Solve agent orchestration, evaluation, guardrail, memory, context, and reliability challenges.
- Write and review code, establish reusable engineering patterns, mentor through design reviews, and partner across product and technical teams.
What they ask for
- Built, scaled, and supported production agentic systems through launch and ongoing operations, including orchestration, evaluations, guardrails, and handling non-deterministic failures.
- Owned technical and product direction for a significant area and shipped work adopted by other engineers.
- Hands-on coding, architecture review, and production debugging experience.
- Able to communicate technical trade-offs and turn ambiguous problems into plans.
Nice to have
- Experience with production-scale multi-tenant agent platforms.
- Experience with 0-to-1 products, production evaluation systems, AI observability, or human-in-the-loop workflows for LLM-powered products.
Pay
$176,000 — $264,000 USD (base salary)
AI focus
Build and operate a production conversational AI customer-support agent; lead work on orchestration, evaluation, guardrails, memory and context, reliability, and responsible deployment.
Model-written summary · the original posting is authoritative