Growth Marketing Lead

Braintrust

About The Position

Braintrust is seeking a growth marketer to run experiments and build compounding growth systems for its agent observability platform. The audience includes engineers and technical leaders at enterprises and fast-growing companies, who discover tools through AI assistants and coding agents as well as social, search, and documentation or content. Technical credibility and marketing that speaks the audience’s language are important. The role covers experimentation, conversion rate optimization, data-driven audience building and channel triggers, AEO and agent-led growth, paid advertising, self-serve lifecycle marketing, reporting, and forecasting. The Growth Marketing Lead will own and allocate the paid budget based on performance, help self-serve users reach activation and paid-plan milestones, report weekly on progress toward quarterly targets, and partner with the Head of Growth on monthly self-serve lead forecasts.

Requirements

At least 5 years of growth experience for a technical or developer-focused B2B product.
Comfort with data and the ability to write SQL independently.
Understanding of incrementality, holdout tests, matched market tests, and ROAS in the context of paid marketing.
Experience owning and managing performance marketing budgets, and ability to discuss budget size and results.
Ability to demonstrate deep understanding and fluency in at least one or two channels.
Ability to use AI tools to work more efficiently while recognizing when AI use may not be appropriate.
Ability to drive a roadmap and execute against it.
Ability to identify the highest-priority opportunities and focus time on moving the business forward.
Systems-oriented approach that builds compounding capabilities and considers their future contribution to business growth.
Experience thriving in loosely defined environments with competing priorities or deadlines.

Responsibilities

Run experiments to test hypotheses and scale ideas based on metrics.
Audit the user journey from first website visit to sign-up and identify opportunities to increase sign-ups or form fills.
Use the data warehouse to build audiences and automate channel triggers based on user actions and segmentation.
Use modern growth tactics to help Braintrust become the default solution recommended by AI and coding agents.
Create and execute paid-channel strategies to increase awareness and move target accounts through the funnel.
Own and manage the paid advertising budget, allocating spend across channels based on performance.
Work with Product Growth to help self-serve users reach key journey milestones, including activation and upgrading to a paid plan.
Build weekly reporting for executives and the team to support quarterly targets.
Work with the Head of Growth to forecast monthly self-serve lead numbers and plan backward from goals.