Prompt Engineer
Pencil
- Saint Paul, Illinois, United States
- Saint Paul, Illinois, United States
À propos
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 high-level creative briefs into deterministic AI workflows. What We’re Looking For
3+ Years of Direct GenAI Experience: You have a deep, intuitive, and technical understanding of LLMs (GPT-4, Claude, Gemini) and multimodal models (Stable Diffusion, Midjourney, Video Gen). Systems Thinking: You don’t just write a prompt; you think about the latent space, the context window, and how one agent's output becomes another’s input. Technical Literacy: While this isn't a "Software Engineer" role, you should be comfortable with Python, JSON structures, and API documentation. Experience with orchestration frameworks (LangChain, CrewAI, AutoGen) is a major plus. Evaluation Obsession: You believe that if you can’t measure a prompt’s performance, you shouldn’t ship it. You are familiar with benchmarking and A/B testing AI outputs. The "Creative/Technical" Bridge: You can sit in a room with a Creative Director and translate "make it feel more punchy" into a temperature adjustment and a few-shot prompting strategy. You’ll Thrive Here If...
You find "hallucinations" to be a logic puzzle to be solved, not just a bug. You are excited by the challenge of making an AI follow a 50-page brand book with 100% fidelity. You want to build the infrastructure that defines how the next generation of advertising is created. KPI & Success Measures
System Reliability: Reducing the "failure rate" of complex agent workflows. Architectural Efficiency: Minimizing token usage/latency while increasing output quality. Brand Alignment: Scoring of agent outputs against specific brand guidelines using automated evaluation tools. Scale: Successful rollout of core agents used by the entire Pencil user base. 25 days PTO plus public holidays, although we operate a Flexible Time Off scheme Health insurance / private medical cover Monthly stipend towards wellness, fitness, and learning and development Remote - work from anywhere in your home country Enhanced parental leave policies, whether you become a parent through birth, adoption or surrogacy
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Compétences linguistiques
- English
Avis aux utilisateurs
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