Performance Marketing Manager, Paid Search & AI Advertising (AI)

Location: San Francisco, CA, United States; onsite

Salary: $165,000–$190,000 annually, plus variable compensation, equity, benefits, and perks.

Company

LangChain builds open-source frameworks and a platform for building, evaluating, deploying, and operating AI agents at scale, including LangSmith, LangChain, LangGraph, Deep Agents, and LangSmith Engine.

What you will do

• Own paid acquisition strategy, budget allocation, forecasting, and pipeline performance across Google Ads, Microsoft Advertising, and ChatGPT advertising.
• Build, launch, manage, and optimize branded, non-branded, competitor, and product search campaigns, including keyword research, bidding, negative keywords, and budget optimization.
• Develop advertising strategies for emerging AI-native channels, testing placements, audiences, messaging, formats, and conversion experiences.
• Build and optimize paid-acquisition landing pages in Webflow or similar tools and run A/B tests on messaging, layouts, CTAs, and forms.
• Own reporting across spend, traffic, conversions, qualified leads, meetings, opportunities, and pipeline; connect conversion signals with HubSpot and Salesforce.
• Partner with Product Marketing, Web, Design, Marketing Operations, and Demand Generation on messaging, tracking, attribution, launches, and pipeline targets.

Requirements

• 5–11 years of experience in performance marketing, paid search, or B2B growth marketing, ideally including developer tools, infrastructure, or technical SaaS.
• Deep hands-on expertise in Google Ads and experience managing Microsoft Advertising.
• Proven ability to personally build, launch, and optimize paid search campaigns, including campaign architecture, keyword intent, bidding strategies, negative keywords, and search budget optimization.
• Experience testing new advertising platforms or emerging acquisition channels, with curiosity about AI-native search and advertising.
• Strong experience with conversion rate optimization, landing page development, and A/B testing.
• Experience managing meaningful budgets and optimizing toward qualified pipeline and revenue outcomes.
• Strong analytical skills and fluency in CPC, CVR, CPL, cost per opportunity, pipeline contribution, and attribution.
• Working knowledge of Google Ads, Microsoft Advertising, GA4, Google Tag Manager, HubSpot, Salesforce, and Flint/Webflow.
• Comfort with technical products and developer audiences, ambiguity, ownership, and building programs without an established playbook.

Culture & Benefits

• Full-time onsite work in San Francisco, with meals on in-office days in the US.
• Medical, dental, and vision coverage, flexible vacation, a 401(k) plan, and life insurance.
• Meaningful equity, variable compensation for relevant roles, and competitive benefits and perks.
• Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.