At Pencil, we’re building the agentic OS for marketing. We aren't just using integrating generative AI; we are building the machine that makes it professional, brand-safe, and scalable. We’re moving beyond simple text-in/text-out interfaces toward complex multi-agent architectures that can handle the nuanced demands of general brands and the agility of small businesses.

We are looking for an Agent Architect who thinks in systems, not just sentences. You will be responsible for the "brain" of Pencil—designing the agent logic, tool-calling structures, and evaluation loops that power our core creative engine and bespoke client solutions.

The Role: Architecting the Creative Brain

You won’t just be "prompting"; you will be engineering behavior. You will bridge the gap between creative intent and machine execution, ensuring that our agents are robust, predictable, and capable of high-fidelity output across text, image, and video.

Your work will fall into two high-impact pillars:

Core Systems: Designing and scaling the foundational agents that power the Pencil SaaS platform.




Client Solutions: Architecting custom workflows for world-class brands that require specific "brand DNA" and complex creative logic.

Job Responsibilities

Agent Architecture: Design and implement multi-agent workflows, including task decomposition, state management, and tool-use (RAG, API integration, etc.).
Systematic Optimization: Move beyond "vibe-based" testing. Implement rigorous evaluation frameworks (e.g., using LLM-as-a-judge, promptfoo, or DSPy) to measure and improve agent performance at scale.
Scalable Frameworks: Develop reusable agents and prompt libraries that allow the platform to serve 1,000+ brands with unique voices simultaneously.
Cross-Functional Engineering: Partner with AI Engineering and Product teams to determine which behaviors should be handled via prompting, RAG, or fine-tuning.
Client Architecture: Act as the technical lead for complex client deployments, translating hi

📌 Agent Architect (Bogotá)
🏢 Pencil
📍 Bogotá