• Lead growth engineering projects: implementing localization frameworks, building referral program logic, and tracking improvements • Build and ship features on Buffer's marketing site: landing pages, interactive tools, and conversion flows • Shape marketing platform capabilities by creating systems for A/B testing and page generation • Drive experimentation and optimization: implement A/B tests, optimize funnels, and iterate based on learnings • Maintain marketing technology stack integrations and ongoing system health • Contribute to engineering culture by partnering with engineers and sharing knowledge about growth systems