> Markdown version of [/jobs/ext/2122887-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/2122887-full-stack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Engineer - **Company:** Greenhouse Software, Inc. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $171,200.0 - $235,400.0 - **Contract:** Permanent contract - **Skills:** A/B Testing, Artificial Intelligence, Node.Js, TypeScript, ReactJS, Large Language Models, Multi-Agent Systems, Backend, Front End Software Development - **Published:** August 19, 2026 - **Apply:** https://job-boards.greenhouse.io/launchdarkly/jobs/7767264003 ## About the Role * 5+ years of full-stack engineering experience, with a portfolio of features you personally drove from idea to production. * Shipped AI-first features in production. You have used MCP servers, agent frameworks, or LLM tool-use in real products, not just demos, and you have a point of view on what works and what does not. * Comfort across the stack. Strong with TypeScript and React on the frontend. Able to hold your own in Go or Node on the backend. Our stack is TypeScript and Go. * Track record of moving product-led growth metrics. Hands-on experience with instrumentation, funnel analysis, and A/B testing. You think in leading and lagging indicators. * An experimentation habit. You are comfortable defining a hypothesis, wiring up a flag, running the test, reading the result honestly, and changing your mind. * Good instincts for what makes developer onboarding actually work. You have an opinion about when friction is a bug and when it is a feature. * A collaborative engineer who works well alongside product and design, communicates crisply, and enjoys the parts of the job that are not code. * Genuine interest in where AI belongs in a developer platform. You have thought about where agents help in your own workflow, and you want to bring that thinking into a product that a lot of developers will touch. ## Description LaunchDarkly is hiring a Full Stack Engineer for the Foundation team. Foundation owns the first mile of the developer journey - the moment a developer finds LaunchDarkly, creates an account, ships their first flag, and starts to see real value. We are responsible for turning initial interest into long-term adoption, and for the PLG metrics that track how well we do it: time to value, activation, developer-to-paid conversion, and the path from a free trial to a paying customer. We are building the next version of this experience around agents. An onboarding agent meets a developer where they already work, reads the repo in front of them, and wires LaunchDarkly into their code in a few minutes. That shape of product requires engineers who already live in this space. We want someone who has shipped features on top of MCP servers, who is comfortable designing around model capabilities, and who has a real point of view on where AI meaningfully changes a product and where it just adds surface area. In this role, you will partner closely with product, design, data, and other engineering teams to take initiatives from idea to shipped experiment. You will build agentic onboarding flows, extend LaunchDarkly into the tools developers already use, and move the PLG metrics that matter. You will have real latitude on stack, approach, and experiment design, and the bar is that the funnel moves. Foundation ships often, iterates in small increments, and dogfoods LaunchDarkly's own flags and experimentation on everything it builds. If you want to reshape how developers adopt a platform, and you want to do it with agents rather than forms, this is the role., * Drive features from problem framing through design partnership, full-stack implementation, instrumentation, rollout, and experimentation. Each initiative should have a clear line of sight to a PLG metric. * 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. The goal is customers with a useful flag running in production on day one. * 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 our PM (Natalie Friedman), design team, 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. Give the product team real feedback on the developer experience. * As part of our you-build-it-you-run-it culture, all developers may be responsible for supporting applications in production, including on-call., We invite applicants to share their demographic background. Please note this optional survey is different from the EEO questions further in the application -- we encourage you to answer both, as one is required for government reporting, and the other includes additional questions to further identify areas of improvement in our goal to become a more diverse and inclusive organization. Your responses will not be associated with your specific application and will not in any way be used in the hiring decision. How would you describe your gender identity? (mark all that apply) Select... How would you describe your racial/ethnic background? (mark all that apply) Select... How would you describe your sexual orientation? (mark all that apply) Select... Do you identify as transgender? Select... Do you have a disability or chronic condition (physical, visual, auditory, cognitive, mental, emotional, or other) that substantially limits one or more of your major life activities, including mobility, communication (seeing, hearing, speaking), and learning? Select... Are you a veteran or active member of the United States Armed Forces? Select... Voluntary Self-Identification For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file. As set forth in LaunchDarkly's Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law. Gender Select... Are you Hispanic/Latino? Select... Race & Ethnicity Definitions If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows: A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability. A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service. An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense. An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985. Veteran Status Select... ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Stop using Node.js like in 2020! 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