AI Software Engineer (Fullstack)

Clearstory is hiring an AI Agent Engineer (Fullstack) to help build the next generation of intelligent automation across our platform. AI agents are becoming core to how Clearstory delivers value — surfacing change order insights, automating cost workflows, and giving construction teams superpowers they didn't have before. In this role, you'll own AI agents end-to-end: from scoping a workflow with product, to designing prompts and tools, to building the eval harnesses that prove the agent works, to shipping the surfaces where the agent shows up in our product.This is a high-impact role for an engineer who's been building with LLMs in production and is ready to own a category-defining surface area. You'll work directly with our Head of AI, product leaders, and senior engineers to ship agents that move the needle for general contractors, specialty contractors, and owners managing billions of dollars in change orders every month.Clearstory is an AI-forward engineering organization. We use modern AI tools every day — not as a novelty, but as core leverage. You'll have access to the best agent platforms, frontier models, and internal tooling we've built to ship faster while holding a high bar for craftsmanship and reliability.We operate in a hybrid work model: 3 days per week in the office, with the option to work 2 days per week from home if desired. We value in-person collaboration while supporting flexibility.As an AI Software Engineer, you will:Own AI agents and workflows end-to-end — from scoping the workflow with product and design, through prompt and tool design, to production deployment and continuous iterationBuild across the full stack — agent orchestration backends, tool/API integrations, evaluation pipelines, observability, and the product surfaces where agents show upDesign and run evals — golden sets, LLM-as-judge frameworks, regression evals — so we ship agents that work, not demos that don'tIntegrate with the construction tech ecosystem — accounting systems, project management tools, document repositories — and our own BigQuery-backed data platformPartner closely with product, design, and other engineers to translate messy real-world workflows into reliable agent behaviorsShape the future of our agent platform — surface unmet needs, prototype new patterns, and influence how AI shows up across Clearstory's productMove fast in a SOC 2-compliant environment, using modern AI development workflowsAbout YouWe're looking for someone who:Has shipped production LLM systems — not prototypes, not hackathon projects. You can talk through an agent or workflow you've built, including its failure modes and the evals you put around itOperates with high agency in ambiguous environments. You don't need a PRD to start movingIs genuinely fullstack — comfortable from Postgres up through React, and not allergic to either end. Bonus points fo Golang experienceCommunicates clearly across engineering, product, and design. Low ego, collaborative, directCares deeply about reliability and craft. AI quality, latency, and cost tradeoffs are second natureThrives in a fast-paced startup environment where the surface area is wide and the leverage is realEmbodies our core values: Be Curious, Customer Obsession, and Keep It SimpleAbout ClearstoryClearstory is a first-of-its-kind, category-defining SaaS company revolutionizing how commercial construction teams manage and communicate change orders. Our platform digitizes and automates outdated, manual workflows, bringing efficiency, transparency, and collaboration to one of the most critical (and historically underserved) parts of construction.We are:A Series B, 100% SaaS companyTrusted by over 50% of ENR's 2025 Top 50 GCs nationwide, with 14k+ contractors on the Clearstory networkProcessing $3B in change orders shared monthly across our platformSolving a multi-billion dollar problem with strong product-market fitLed by a team with deep expertise in both construction and softwareRequirements2-3+ years of professional software engineering experience, including production work on AI/LLM systemsStrong proficiency in Python and TypeScript, including async programmingFullstack production experience — React/TypeScript on the frontend, modern backend services, REST APIs, PostgresHands-on experience with modern LLM tooling: prompt engineering, function/tool calling, RAG patterns, vector stores, and at least one major model provider (Anthropic, OpenAI, Google)Experience designing and running evaluation frameworks for LLM systemsComfort with cloud infrastructure (GCP preferred; AWS or Azure acceptable), Docker, and CI/CDStrong written and verbal communication — you can scope an agent with product, explain tradeoffs to an exec, and write docs your teammates actually want to readNice to HaveExperience with agent orchestration frameworks (LangGraph, CrewAI, Claude Agent SDK) and observability tooling (Braintrust, LangSmith, Datadog, or equivalent)Familiarity with MCP (Model Context Protocol) and building MCP servers or skillsExperience with BigQuery, ClickHouse, or similar analytics warehousesPrevious work in ConTech, FinTech, or other regulated enterprise verticalsBackground as a founding engineer or in an applied AI / platform engineering role at a fast-moving startupBenefitsCompetitive salary and equitySubsidized healthcare, vision, and dental coverageAccess to frontier AI tools and internal AI tooling to accelerate your workAccess to online learning and professional development resourcesRegular interaction with executive leadershipA collaborative and mission-driven team environment