Prompting Engineer

Are you passionate about shaping the future of Artificial Intelligence? We are seeking a skilled AI Prompt Engineer to join our dynamic Commercial Digital team. In this role, you will take ownership of the behavior of Large Language Model (LLM)-driven agents in production.

• Develop & Tune Prompts:
  Craft and maintain high-performing prompt architectures—including system prompts, tool instructions, guardrails, and output schemas—for production AI agents.
• Evaluate & Test:
  Build and execute evaluation suites and regression tests for individual agent behavior. Define quality metrics and acceptance thresholds in collaboration with business owners.
• Optimize Performance:
  Design and operate A/B testing for prompt and model variants, utilizing feedback loops that learn from human review outcomes to focus on single-agent optimization.
• Drive Cost Efficiency:
  Support LLM optimization efforts, focusing on model selection, context-window management, structured outputs, and token efficiency.
• Guard Quality & Tone:
  Maintain tone-of-voice and multi-language consistency for customer-facing communications, utilizing professional British English B2B standards as the baseline.
• Risk Mitigation:
  Stress-test guardrails against adversarial inputs, edge cases, and hallucination risks within defined safety standards before prompt release.
• Document & Collaborate:
  Document prompt patterns, test coverage, and evaluation results, enabling business users and reviewers to provide structured feedback.

• Reporting:
  You will report directly to the Head of Commercial Digital, receiving day‑to‑day technical guidance and mentorship from our Level A Senior Prompt Engineers.
• Autonomy:
  You will work within defined organizational standards. Production prompt changes will be peer-reviewed before deployment to ensure quality assurance.

• Experience:
  
  1+ year of practical, hands‑on experience working with LLM applications (including prompting, Retrieval‑Augmented Generation (RAG), and structured outputs).
• Track Record:
  Proven exposure to systematic testing, data validation, or Quality Assurance (QA) of AI/ML systems.
• Technical
  
  Skills:
  
  Strong prompt‑writing craft, disciplined experimentation habits, and basic Python or data‑handling skills to run evaluation pipelines.
• Language
  
  Skills:
  
  Exceptional written English with a strong sensitivity to tone, style, and nuance in professional B2B communication.
• Professional Attributes:
  Clear documentation skills, attention to detail, and a structured approach to processing user feedback.
• Preferred Skill:
  Previous experience with the Microsoft AI stack (Azure OpenAI, Azure AI Foundry, or Copilot Studio) is a significant advantage.

• Inspire Your People:
  Simplify complexity, act with the long‑term vision in mind, and learn from setbacks with high integrity.
• Strengthen Your Team:
  Set the bar high for AI quality, collaborate across departments, and foster a growth mindset.
• Grow Your Business:
  Put customers at the heart of your prompt designs and proactively look for ways to improve automated processes.

• Own It:
  We believe in teamwork, keeping promises, and building our brands together.
• Aim High:
  We are bold, positive, and strive to perform at our best.
• Be True:
  We act with absolute integrity to win for our stakeholders, colleagues, and the environment.

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