AI Engineer Marketing Tools

Role overview An AI Engineer role embedded with a Marketing and Growth team inside a Barcelona-based mobile app studio. The position focuses on designing and shipping LLM-powered tools, agents, and automations that replace manual marketing work with fast, scalable systems.

Responsibilities - Identify repetitive or slow marketing processes and convert them into AI-powered tools and automations. - Design and build LLM-based agents that can reason, use tools, and complete multi-step marketing tasks such as reporting, creative generation, campaign analysis, and channel optimization. - Own projects end-to-end, from scoping the problem with marketing stakeholders through design, build, and ship. - Integrate LLMs and agents with marketing platforms and data sources including ad platforms, attribution tools, analytics, and dashboards. - Partner with Growth, Performance Marketing, and ASO/SEO leads to identify high-impact opportunities and translate them into working products. - Measure productivity and performance gains from delivered work and iterate based on real usage.

Requirements - Proven production experience working with LLMs including prompting, fine-tuning, RAG, or agent-based systems. - Deep knowledge of agent frameworks and multi-step, tool-using workflow design. - Demonstrated track record of building AI tools or automations specifically for marketing, such as reporting automation, creative generation, campaign optimization, or attribution modeling. - Solid understanding of digital marketing operations including user acquisition, performance marketing, SEO, ASO, ASA, and attribution. - Strong Python skills and comfort integrating APIs, webhooks, and third-party tools such as ad platforms, analytics, and MMPs. - Ability to work autonomously, prioritize by impact, and ship in fast-moving, data-heavy environments. - Clear communication with both technical and non-technical stakeholders.

Nice to have - Hands-on experience with agent frameworks such as LangChain, LlamaIndex, or CrewAI. - Familiarity with automation platforms like n8n, Zapier, or Make. - Experience building data pipelines, dashboards, or reporting systems. - Prior startup or resource-constrained environment experience.

Benefits and work setup - Competitive compensation with a hybrid Barcelona model or 100% remote flexibility. - High ownership from day one with direct collaboration with founders and a senior team.