Software Engineer

ABOUT THE ROLE This is a full-stack software engineering role on a small, flat team building an AI agent platform for the hospitality industry. You will own meaningful pieces of a system that handles guest communication and operations workflows at scale, with real autonomy over design and architecture decisions. WHAT YOU'LL DO - Design and build response generation pipelines, including routers, orchestrators, and synthesizers that classify intent, assemble context, select tools, and decide when to send or escalate. - Develop knowledge retrieval systems that ground agent responses in accurate, current customer data despite messy real-world inputs. - Build tool orchestration layers that execute multi-step workflows reliably, including graceful handling of third-party API failures mid-conversation. - Create evaluation frameworks that measure quality against real conversations and catch regressions before they reach customers. - Implement observability and tracing that makes agent reasoning legible to non-technical support teams. - Design controls and interfaces that let support leads adjust agent behavior without writing code. - Extend the platform to voice conversations with real-time transcription and tool-use capabilities. - Optimize for speed and cost through model routing, caching, and prompt refinement. - Own infrastructure, data pipelines, integrations, and API work that underpin the platform. WHAT WE'RE LOOKING FOR - 5+ years of professional software engineering experience, with at least 3 years shipping production systems that real users depend on. - Hands-on experience designing and debugging AI/ML systems in production, including retrieval pipelines, prompt engineering, or model orchestration. - Experience building and evaluating retrieval systems such as knowledge bases, ranking, context validation, or semantic search. - Experience designing multi-step workflows, tool orchestration, or function-calling systems. - Experience building observability, tracing, or debugging tooling for complex pipelines. - Strong evaluation discipline, measuring impact across real conversations before shipping changes. - Proficiency in at least one backend language such as Python, Go, Rust, or Java. - Comfort working across the full stack and picking up whatever the problem requires. - Demonstrated direct ownership of production product systems, ideally in a startup environment. - Experience integrating with third-party APIs and handling failure modes in production. - Pragmatism about AI models, knowing when to reach for frontier models, fine-tuned variants, or simpler solutions. - Prior experience with voice systems, real-time audio, or low-latency applications is a plus. - Background in hospitality, travel, property management, or guest operations is a plus. COMPENSATION & BENEFITS - Base salary: $130,000 to $220,000 per year - Equity: 0.20% to 1.20% - Comprehensive health insurance and 401(k) match - Visa sponsorship is not available; candidates must be authorized to work in the US LOCATION On-site in San Francisco, CA. Relocation is welcome for the right candidate.