Senior AI Engineer

We're working with a global technology leader providing specialist software, services, and support to companies in the distributive trade, enabling fully integrated trading and business management solutions worldwide. With unique expertise in ERP/SaaS, they serve a diverse client base from small traders to multinational enterprises across the UK, Ireland, Netherlands, South Africa, Kenya, and North America. The Role * Design, build, and refine prompts, context strategies, and agentic workflows for AI features in products. * Implement robust evaluation methodologies to test prompts against real business cases and measure quality. * Pragmatically choose and work across various large language models and providers based on quality, cost, and latency. * Collaborate closely with product teams and subject matter experts to ensure a deep understanding of business problems. * Develop and maintain shared prompt patterns, reusable templates, evaluation harnesses, and internal guides to foster best practices. * Coach and mentor engineers to elevate the organization's collective AI capabilities. What You'll Need * Strong software engineering background with significant experience building and shipping production software. * Substantial hands-on experience with large language models, including prompt design and context engineering. * Proven experience building evaluations or test harnesses for LLM outputs and improving quality measurably. * Clear evidence of growing other engineers through mentoring, training, or community involvement. * Daily working fluency with AI coding tools such as GitHub Copilot or Cursor. * Familiarity with LLM APIs (GPT, Claude, Llama), prompt engineering frameworks, and evaluation datasets. What's On Offer * The opportunity to shape how a large engineering organization uses AI in real products and development work. * A high-impact role focused on turning individual AI experimentation into scalable engineering practice. * A flexible hybrid work policy combining office collaboration with remote work. * The chance to work with a diverse and global team on cutting-edge ERP/SaaS solutions. Apply via Haystack today!