[Hiring] Prompt Engineer @Malvern Panalytical

Role Description

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.

Your mission is to ensure our customer-facing AI outputs remain highly accurate, on-brand, legally compliant, and cost-efficient.

• 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.

Qualifications

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

Requirements

• Drive growth, embrace innovation, and inspire others.
• Simplify complexity, act with the long-term vision in mind, and learn from setbacks with high integrity.
• Set the bar high for AI quality, collaborate across departments, and foster a growth mindset.
• Put customers at the heart of your prompt designs and proactively look for ways to improve automated processes.

Benefits

• Competitive salary and performance-based bonuses.
• Comprehensive health and wellness benefits.
• Opportunities for professional development and career advancement.
• Flexible working arrangements.

Company Description

Malvern Panalytical, Micromeritics, and SciAps are committed to a diverse and inclusive culture where everyone can thrive and achieve a fulfilling career. Together we are a powerful and highly complementary combination of market-leading technologies.

• We are the toolmakers for the world's most innovative companies, academic institutions, and government laboratories.
• Malvern Panalytical instruments analyze the chemical, physical and structural nature of materials, from proteins to polymers and semiconductors to minerals.
• Micromeritics manufactures systems for the characterization of particles, powders, and porous materials for a wide range of end markets.
• SciAps specializes in portable X-ray fluorescence (XRF), laser-based (LIBS) and near-infrared (NIR) analyzers.
• We have a global footprint with R&D and manufacturing sites in North America, Europe, and Asia.
• We are more than 2,500 employees in a customer-focused organization with sales and service offices in 20 countries.
• We are part of Spectris, which combines precision with purpose, delivering progress for a more sustainable world.