AIProductEngineer

ABOUT LIGHTFIELD Lightfield is an AI-native CRM that assembles itself from your email, calendar, and meetings. It captures every interaction and turns it into organized context: accounts, tasks, follow-ups, and insights, so nothing slips through the cracks. We’re rethinking CRM from first principles. Instead of forcing teams to maintain rigid systems, Lightfield learns from how companies actually work, adapting, automating, and surfacing the insight that drives growth. We’re building the CRM platform we always wished existed: fast, intelligent, and genuinely helpful. We are backed by Greylock, Lightspeed, and Coatue, and our founders previously built Tome, a generative AI presentation product used by over 25 million people. Before Lightfield, our team worked on Llama, Instagram, Facebook Messenger, Pinterest, Google, and Salesforce. ABOUT THE ROLE We’re looking for a driven, creative engineer who is excited about the challenge of leveraging LLMs to build exceptionally innovative product experiences. You’ll join us at the frontier of AI product development, developing industry-leading approaches to solve important customer problems. Engineers at Lightfield own and drive projects from inception to impact, working with teammates of all functions along the way. You’ll also push our company’s overall product and technical vision as we learn from each project and continue to scale. WHAT YOU'LL DO - Collaborate with product leaders to identify customer problems, scope requirements, and implement LLM-powered solutions. - Apply LLMs as reasoning engines to build domain-specific AI assistants. - Create and enhance prompts, applying techniques like few-shot learning and chain-of-thought. - Develop and optimize end-to-end RAG pipelines and agent architectures to leverage public and proprietary data. - Improve end-to-end AI agent quality (e.g. relevance, fidelity, latency) via empirical evaluation and iteration. - Build and enhance systems and tools that enable high-velocity exp