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LaunchdarklyLaunchdarklyUnited States

Full Stack Engineer

Build agentic onboarding flows and MCP server capabilities that extend LaunchDarkly into developer tools. Drive PLG metrics through full-stack features, experimentation, and funnel analysis.

146k – 235k
Remote5+ YOEFullstack Engineering

About the role

Responsibilities

  • Drive features from problem framing through design partnership, full-stack implementation, instrumentation, rollout, and experimentation with clear line of sight to PLG metrics.
  • Build the next version of LaunchDarkly's onboarding, including agentic flows that work inside a developer's IDE and plug into MCP servers and LLM-powered tooling.
  • Instrument and analyze the growth funnel: signup, activation, first flag, first experiment, first paid conversion. Run experiments that move each step.
  • Ship MCP server capabilities and agent skills that extend LaunchDarkly into the tools customers already use.
  • Partner closely with PM, design, and data analyst to turn qualitative signal from self-serve customers into shippable experiments.
  • Dogfood LaunchDarkly. Use flags, guarded rollouts, and experimentation on your own work.
  • Support applications in production, including on-call.

Requirements

  • 5+ years of full-stack engineering experience, with a portfolio of features driven from idea to production.
  • Shipped AI-first features in production using MCP servers, agent frameworks, or LLM tool-use.
  • Strong with TypeScript and React on the frontend. Able to hold your own in Go or Node on the backend.
  • Track record of moving product-led growth metrics. Hands-on experience with instrumentation, funnel analysis, and A/B testing.
  • Comfortable defining a hypothesis, wiring up a flag, running the test, reading the result, and changing your mind.
  • Good instincts for developer onboarding. Collaborative engineer who works well alongside product and design.
  • Genuine interest in where AI belongs in a developer platform.

Nice-to-Haves

  • Experience with agent frameworks and LLM-powered tooling in production environments.

Skills

TypeScriptReactGoNode.jsMcp ServersLlm Tool-UseAgent FrameworksA/B TestingInstrumentationFunnel Analysis

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