Performance Marketing Manager, Paid Search & AI Advertising

LangChain

5d•$165,000 - $190,000

About The Position

LangChain is hiring an experienced Performance Marketer to own and scale paid search and emerging AI advertising channels, starting with Google Ads, Bing (Microsoft Advertising), and ChatGPT. The role owns the full paid acquisition experience, from channel strategy and campaign building through landing-page optimization, conversion improvement, and qualified-pipeline growth. It is highly hands-on and includes campaign execution, performance analysis, creative testing, website optimization, and identifying opportunities to scale. The position develops channel-specific strategies based on audience intent, targeting capabilities, and expected pipeline contribution; manages budgets and forecasts; and tests audiences, messaging, bidding, conversion experiences, and advertising formats. It also owns campaign operations and conversion experiences for paid traffic, including landing-page development and A/B testing. The role establishes measurement and reporting across spend, traffic, conversions, qualified leads, meetings, opportunities, and pipeline. It partners with Product Marketing, Web and Design, Marketing Operations, and Demand Generation on messaging, landing pages, tracking, attribution, CRM integrations, reporting, launches, budgets, and pipeline targets.

Requirements

5–11 years of experience in performance marketing, paid search, or B2B growth marketing.
Deep hands-on expertise in Google Ads and experience managing Microsoft Advertising.
Proven experience personally building, launching, and optimizing paid search campaigns.
Strong understanding of campaign architecture, keyword intent, bidding strategies, negative keywords, and search budget optimization.
Experience testing new advertising platforms or emerging acquisition channels.
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.
A strong experimentation mindset and willingness to build programs without an established playbook.
Comfort with ambiguity and ownership.

Nice To Haves

Experience in developer tools, infrastructure, or technical SaaS.
Curiosity about AI-native search and advertising.

Responsibilities

Own paid acquisition strategy across Google Ads, Bing, and ChatGPT, with potential expansion into additional AI-native advertising channels.
Develop channel-specific strategies based on audience intent, targeting capabilities, and expected pipeline contribution.
Own budget allocation, forecasting, and performance against pipeline targets.
Balance investment across branded, non-branded, competitor, product-specific, and emerging AI advertising campaigns.
Identify opportunities to scale successful campaigns and develop repeatable playbooks for new channels.
Develop testing roadmaps across audiences, messaging, bidding, conversion experiences, and advertising formats.
Build, launch, and manage Google Ads campaigns, including keyword research, match types, negative keywords, bidding, and budget optimization.
Develop and manage Bing/Microsoft Advertising campaigns to extend reach and capture incremental high-intent demand.
Develop and execute an early ChatGPT advertising strategy, testing available placements, audiences, messaging, and conversion experiences.
Write and test ad copy with Product Marketing, adapting messaging to each channel and user intent.
Run structured experiments to improve acquisition efficiency, traffic quality, and pipeline conversion.
Own campaign setup, tracking validation, launch readiness, troubleshooting, and day-to-day optimization.
Own and optimize the website conversion experience for traffic acquired through Google, Bing, and ChatGPT.
Build and optimize paid-acquisition landing pages using Webflow or similar tools.
Develop and execute A/B tests across landing-page messaging, layouts, calls to action, and forms.
Identify friction in the user journey from ad interaction to product sign-up, demo request, or meeting booking.
Optimize conversion paths for developers exploring LangSmith and enterprise buyers evaluating commercial solutions.
Partner with Marketing Operations to improve form conversion, qualification, routing, and meeting booking.
Ensure landing pages reflect user intent and context across advertising channels.
Own reporting across spend, traffic, conversions, qualified leads, meetings, opportunities, and pipeline.
Develop measurement frameworks for Google Ads, Bing, and ChatGPT based on available reporting and conversion capabilities.
Partner with Marketing Operations to connect advertising conversion signals with HubSpot and Salesforce data.
Optimize established search channels toward downstream pipeline signals, including offline conversion tracking where supported.
Establish testing and measurement approaches for emerging channels with less mature attribution and optimization capabilities.
Analyze channel, audience, campaign, and landing-page performance to guide investment and optimization.
Partner with Product Marketing on positioning, search campaigns, AI advertising messaging, and landing-page experiences.
Work with Web and Design on landing-page development and conversion experimentation.
Collaborate with Marketing Operations on tracking, attribution, CRM integrations, and reporting accuracy.
Align with Demand Generation on launches, campaign priorities, budget allocation, and pipeline targets.