Senior GTM Engineer

Job description

Build growth engines with a team that's pushing the edge. We're GTMBase, an AI-first RevOps and GTM agency. We build the systems, automations, and data infrastructure that power how modern B2B companies find, qualify, and convert their best customers. Deep RevOps expertise. AI-first execution. We work with a limited number of clients and go deep rather than wide. You'll be embedded with a handful of companies, understanding their business, designing their GTM architecture, and building systems that compound over time. This is a contract / part-time role with a path to full-time. Tasks Design and build GTM systems : data enrichment pipelines, lead scoring models, routing logic, signal-based workflows. Clay is your primary canvas. Find and connect data sources: discover new APIs, databases, and enrichment providers that give our clients an information edge. You're always hunting for better data. Architect CRM and automation infrastructure: HubSpot, Salesforce, n8n, Clay whatever the client needs. You wire it all together so nothing falls through the cracks. Build AI-powered workflows: use LLMs (Claude, GPT) and AI agents to automate research, personalization, qualification, and analysis at scale. Work closely with clients: run feedback loops, present your work, and translate messy business problems into clean, repeatable systems. You'll build real relationships, not just deliverables. Push the frontier: R&D is part of the job. Test new tools, new techniques, new approaches. Share what you learn with the team. We move fast because everyone brings something new to the table. Requirements Must-haves Clay expertise: you've built real things in Clay. Portfolio work, client projects, or personal experiments that show you know your way around the platform. AI-first mindset: you use AI tools daily, not as a novelty but as core infrastructure. You reach for Claude or GPT before you reach for a spreadsheet. You're building with AI, not just prompting it. Systems thinker: you see the whole picture. Data flows, dependencies, edge cases, failure modes. You design systems that are robust, not just functional. Natural problem solver: when something doesn't work, you figure it out. You read docs, reverse-engineer APIs, test hypotheses, and find a path forward. Nobody needs to hand you a playbook. Self-directed but team-oriented: you can operate independently and drive projec…