Are you a veteran of the AI landscape with a Doctorate or Master's and a track record of shaping LLM performance? Welo Data is seeking a Lead Prompt Engineer to spearhead the technical migration of template architectures into state-of-the-art LLM autoraters. This is a high-stakes leadership role. You will not only engineer complex prompts but also guide a specialized team, drive the migration strategy, and certify the launch readiness of our next-generation AI solutions. The Mission Leading the AI Evolution

• Strategic Oversight Manage the full end-to-end technical migration workflow, ensuring a seamless transition from human-rated templates to automated LLM systems.
• Team Mentorship Guide a team of engineers through the complexities of parent-child template clusters and automated optimization.
• Advanced Optimization Direct the use of APG and APO tools, providing the high-level intervention needed when automated systems reach plateaus.
• Launch Certification Take final responsibility for accuracy metrics, running prompt versions against gold data to verify $F_1$ scores, precision, and recall.
• Edge-Case Resolution Architect manual prompt strategies to solve the most difficult "anti-patterns" in legacy architectures. Project Details
• Schedule Part-Time (Flexible hours within project milestones)
• Location 100% Remote (Must be based in the United States)
• Employment Type Freelance / Independent Contractor
• Duration Long-term technical migration project The Executive Profile
• Elite Expertise At least 7 years of experience as a Prompt Engineer with a proven history of tuning LLMs for structured outputs and complex classification.
• Advanced Academic Background Master’s or Doctorate (PhD) in Computer Science, Computational Linguistics, HCI, or a related analytical field.
• Data Mastery Strong proficiency in SQL and deep-dive error pattern analysis to monitor and enhance model performance.
• Technical Agility Expert-level ability to master proprietary tools and enterprise-grade interfaces like the Goose API.
• Leadership Excellence A natural mentor with the verbal and written communication skills required to justify technical launches to stakeholders. Preferred High-Level Skills
• Experience in software engineering or AI model evaluation at an enterprise scale.
• Deep linguistic expertise, specifically in semantics and formal logic.
• Hands-on experience with Chain-of-Thought (CoT) and shadowbot disagreement tracking. Apply To This Job