Klaviyo

Sr. Staff Engineer - Customer Agent

Klaviyo
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4 hours ago
Boston, MA, USAStaff+
H1B Sponsor

Base Salary

$216k - $324k/yr

Responsibilities

  • Lead the architecture, design, and implementation of Customer Agent’s core platform and AI capabilities.
  • Drive technical strategy and long-term evolution for conversational AI experiences serving millions of users.
  • Build and ship complex AI-powered product features while balancing speed, quality, reliability, and customer impact.
  • Partner with Product, Design, Data Science, GTM, and Engineering leaders on product direction and execution.
  • Make technical decisions involving agent architectures, orchestration frameworks, retrieval systems, memory, tool use, evaluation, and reliability.
  • Establish observability, testing, monitoring, experimentation, and operational excellence practices for AI systems.
  • Lead cross-functional initiatives spanning multiple teams and organizations.
  • Mentor engineers through technical leadership, design reviews, architecture discussions, and hands-on collaboration.
  • Evaluate emerging AI technologies and frameworks and influence Klaviyo’s broader AI platform direction.

Requirements

  • 10+ years of software engineering experience building and operating production systems at scale.
  • Significant experience designing and shipping customer-facing AI-powered products or agentic systems.
  • Strong backend engineering and distributed systems fundamentals, including scale, latency, reliability, and operational tradeoffs.
  • Expertise with LLM-powered applications, retrieval systems, agent workflows, orchestration, evaluation frameworks, and guardrails.
  • Experience leading complex, multi-quarter technical initiatives across multiple teams and stakeholders.
  • Strong product instincts and ability to connect technical decisions to customer and business outcomes.
  • Excellent communication and collaboration skills across engineering, product, design, and executive audiences.
  • Hands-on coding experience and a track record of technical leadership, mentorship, and execution excellence.
  • Preferred experience includes conversational AI, customer support automation, agentic workflow platforms, production evaluation systems, AI observability, human-in-the-loop workflows, LLM reliability engineering, 0-to-1 products, or startup environments.

Benefits

  • In-office role in Boston, Massachusetts.
  • May require up to 10% travel for onboarding, client or partner work, team meetings, and industry events.
  • Comprehensive health, welfare, and wellbeing benefits based on eligibility.
  • Potential annual cash bonus, equity, and sign-on payments in addition to base salary.

Categories

Klaviyo

About Klaviyo

1,001-5,000 employees

Klaviyo (NYSE: KVYO) is the autonomous B2C CRM. Powered by its built-in data platform and AI, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster. Klaviyo (CLAY-vee-oh) helps over 193,000 brands like Mattel, Glossier, Daily Harvest, and Liquid Death deliver 1:1 experiences at scale, improve efficiency, and drive revenue.