AI & GTM Engineer

Join Serotonin as a GTM AI Engineer and help shape the future of marketing for transformative technologies. Drive real impact by building and deploying AI-powered workflows that accelerate growth for leading web3, AI, and consumer tech brands. If you thrive at the intersection of AI, GTM strategy, and hands-on execution, this is your opportunity to lead innovation at a global scale. ❖ About Serotonin Serotonin is the premier go-to-market firm for transformative technologies, specializing in marketing, strategy, recruiting, and legal services. With a global team of 90 professionals across 15 countries, we’ve empowered over 300 clients in web3 infrastructure, digital assets, consumer tech, venture capital, and AI since 2020. Our proprietary Serotonin Platform connects builders and founders with the resources they need to drive business growth, making us a central force in the web3 ecosystem. ❖ About the GTM AI Engineer Role As a GTM AI Engineer, you’ll architect and implement the AI layer across Serotonin’s marketing operations. You’ll identify opportunities to leverage AI tools to compress timelines, enhance output quality, and create competitive advantages for both internal teams and clients. This role is hands-on: you’ll build, iterate, and deploy AI-powered workflows that deliver measurable GTM impact across web3, B2B SaaS, and consumer tech sectors. ❖ Key Responsibilities - Audit and redesign marketing workflows (content, social, PR, growth, design) using AI tools to boost speed, quality, and scalability - Build and maintain AI-powered content and campaign pipelines for internal teams and client accounts, ensuring brand quality - Develop and manage a firm-wide prompt library, AI SOPs, and workflow playbooks to drive consistent AI adoption across a 90-person global team - Evaluate, onboard, and maintain new AI tools relevant to marketing and GTM, evolving our AI tooling stack as the landscape shifts - Partner with client teams to diagnose GTM bottlenecks and design AI-assisted solutions, from content at scale to campaign automation - Build no-code and low-code automations connecting AI tools to martech stacks (HubSpot, Notion, Slack, social platforms) using Make, Zapier, or n8n - Train and upskill marketing teams on AI tools and workflows, raising baseline AI fluency across the organization - Define and track metrics that demonstrate AI workflow impact—time saved, output volume, quality scores, and client adoption ❖ Required Skills & Experience - Expert-level prompt engineering with major LLMs (Claude, ChatGPT, Gemini, Perplexity); experience building multi-turn workflows and system prompts - Hands-on experience with AI creative tools: image (Midjourney, Adobe Firefly), video (Runway, Sora, Kling), and audio (ElevenLabs) in marketing contexts - Proficiency in workflow automation using no-code/low-code platforms (Make, Zapier, n8n); experience connecting APIs and maintaining automations - Comfortable working with APIs, webhooks, and JSON to integrate AI tools - Familiarity with AI-native martech (HubSpot AI, Jasper, Copy.ai, Notion AI, Sprout Social) and broader martech stacks - Experience building prompt templates, internal AI playbooks, and training materials that drive adoption ❖ Analytical & Data Science Expertise - Skilled in using AI tools (NotebookLM, Perplexity) for research synthesis, competitive intelligence, and market data analysis - Ability to measure and interpret the performance of AI-assisted campaigns and workflows, including A/B testing and data-driven recommendations - Familiarity with analytics tools (GA4, HubSpot analytics, basic SQL a plus); comfortable with spreadsheets and dashboards - Strong critical thinking to evaluate AI outputs and build judgment into workflows ❖ Blockchain & Web3 Experience - Understanding of the web3 GTM landscape, including protocols, DAOs, and crypto project growth strategies - Knowledge of how AI and blockchain intersect (AI agents, on-chain AI applications, decentralized compute) and their impact on GTM - Awareness of on-chain analytics tools (Dune, Nansen, Arkham, Flipside) and their role in GTM strategy - Prior experience in crypto or web3 marketing is a strong plus ❖ Who Thrives Here - Adaptable professionals who are comfortable acting as strategist, builder, trainer, or operator as needed - Early adopters who love experimenting with new tools and have the judgment to scale what works - Problem-solvers energized by ambiguity and the challenge of writing new playbooks - Fast shippers who value real-world impact over perfection - Believers in AI as a multiplier, not a shortcut, and who build robust, scalable workflows - Team players who thrive in a fast-moving, globally distributed, high-autonomy environment ❖ Benefits - Competitive salary: $80,000 - $190,000, based on experience and qualifications - Health insurance (US only) - 401(k) (US only) - Remote work environment - Maternity/paternity leave Ready to drive the future of AI-powered marketing as a GTM AI Engineer at Serotonin? Apply now to join a global team where your work will shape the next wave of innovation in web3, AI, and consumer tech. [META]: Join Serotonin as a GTM AI Engineer to build AI-powered marketing workflows for web3, AI, and B2B SaaS. Remote, global team, $80k-$190k.