AI Engineer | £100,000 - £160,000We're working with an ambitious AI startup transforming document-heavy industries with generative AI workspaces on this exciting opportunity. You will bridge the gap between high-level architecture and rapid product delivery, leveraging tools like Claude Code to automate complex workflows for global real estate and investment giants.This is a high-impact role for a product-minded engineer who doesn't just "hit tickets" but crafts sophisticated agentic systems that solve multi-million pound business problems. Joining an elite team backed by Tier 1 investors, you’ll own the lifecycle of core product features from initial concept to enterprise adoption.The Role Architect and implement end-to-end AI pipelines for complex data extraction and multi-step agentic content generation using Python and modern LLM frameworks. Partner directly with the CTO and commercial teams to translate high-level customer needs into robust, scalable enterprise APIs and document management integrations. Leverage cutting-edge AI coding assistance (Claude Code, Cursor) to maximize development velocity and focus on high-level system design and security by design. Mentor a high-performing engineering team, championing a culture of "Own It, Ship It" while maintaining rigorous standards for intellectual honesty and technical excellence. Lead the development of advanced workflow automation that processes property leases, planning documents, and investment reports at scale.What You'll Need Extensive experience in high-growth startups or fast-paced tech environments with a track record of owning product features from ideation to production. Advanced proficiency in Python and a deep understanding of building/maintaining high-quality, production-grade APIs and microservices. Expert-level hands-on experience with AI development tools (GitHub Copilot, Cursor, Claude Code) and a strong grasp of Generative AI principles. Exceptional architectural skills with the ability to balance immediate user needs with long-term system scalability and data privacy. A growth mindset with the curiosity to "dive deep" into technical oddities and the resilience required for a seed-stage, high-impact environment.What's On Offer Competitive base salary (£100k - £160k) plus high-upside equity in a well-funded startup with ample runway. Remarkable benefits including unlimited annual leave, 5% enhanced pension, and a £100/month holistic well-being budget. Inclusive support for life's biggest challenges, covering ADHD/Autism diagnosis, IVF, gender-affirming care, and 14 weeks full pay for primary caregivers. Annual £1,000 training budget and an electric car salary sacrifice scheme to support your professional and personal growth.Apply via Haystack today!