Staff Innovation Engineer, Marketplace

Builts Mission:Connect and simplify doing business in real estate.

Built is the AI-powered platform transforming the way real estate is financed developed and managed. Purpose-built for real estate and construction Built began by fixing construction draw management for lenders and has grown into a comprehensive operating system addressing some of the industrys most complex Built is a partner to more than 350 lenders over 80000 borrowers and owners and thousands of contractors powering 86000 active projects valued at more than $300 billion. Learn more at.

Built is the AI-first platform for construction and real estate finance managing over $300 billion in annual capital for more than 340 lenders including 45 of the top 100 U.S. banks. The software Built engineers build governs how capital moves through construction projects: the AI Draw Agent that automates construction loan draw management for institutions like Fifth Third and Ameris the lender portfolio risk tools that give banks real-time visibility into construction exposure the compliance and document workflows that protect both borrowers and financial institutions and the APIs that connect Built to core banking systems across the a domain where precision reliability and performance have direct financial consequences the engineering bar at Built is correspondingly high.

Thisrole sits on Marketplace expanding Built beyond workflow software into the services that surround every construction project like inspections appraisals insurance and materials sourcing. The team moves fast: standing up new products with real customers building the durable platform underneath them and sharpening the ones already in market.

As a Staff Innovation Engineer youll flex across all three of those - architecting core systems taking new product ideas from concept to pilot and improving products already in the hands of customers. This is a hands-on building role not a people-management one though at the staff level youre expected to drive system design on major initiatives and mentor other engineers on the team.

• Be Bold. We pursue the biggest problems in our industry challenge assumptions others take for granted and take calculated risks to get there. We dont hide behind consensus or committees. Playing it safe is just failing slowly.
• Help Customers Win. We learn our customers businesses deeply how they think how they deploy capital what keeps them up at night. We treat their capital like our own. We ship leverage not features. And we measure ourselves by customer results not our intentions.
• Move with Urgency & Purpose. We bias toward delivery over perfection remove friction from our own paths and communicate in real time. Momentum compounds and we build it every day.
• Own the Outcome. We own outcomes not just tasks. We hold a high Say:Do ratio and take responsibility from idea through impact. When something breaks we fix it we dont wait to be asked.
• Never Satisfied. We raise the bar continuously. We stay curious hold exacting standards debate hard and hold our opinions loosely when the evidence shifts. Excellence is a habit not an event.

Marketplace is a tight-knit tenured team that recently became its own business unit at Built. Its a collaborative group with a strong culture of mentorship and code review.

• Platform & primitives: Design and build the durable reusable services that every Marketplace product depends on things like purchase orders contract terms invoicing rails and workflow/status state machines using fine-grained microservices and asynchronous workflow orchestration (e.g. Temporal). This work is judged on quality attributes: maintainability scalability reliability and flexibility.
• New product bets: Partner directly with customers to scope a problem ship a working (not perfect) version of a new marketplace product within about 30 days and iterate weekly based on direct customer feedback. Form and test hypotheses with discipline know when to keep pushing when to pivot and when to walk away.
• Adoption & optimization: For products that have already launched focus on quality craftsmanship and driving adoption and usage optimizing workflows and click paths and making the product the best version of itself for customers already using it.
• AI-native development: Build and refine agent harnesses and layered prompting systems (system policy and steering prompts) that automate real workflows for example extracting and reasoning over unstructured documents (loan covenants plans and specs appraisals) using a mix of AWS Textract GCP Document AI and direct calls to models like Claude Gemini and OpenAI choosing the right tool for the document and cost profile. Build and use internal eval tooling to test and improve these systems before and after they ship.
• Partner with product design sales and the General Manager to understand customer problems and give input on pricing GTM and scale/pivot/kill calls for the bets youre closest to final commercial decisions rest with the GM and PM not the engineer.
• Mentor other engineers on the team through code review and pairing and contribute to system design and architecture decisions even on bets you arent personally driving.
• Maintain the teams service and product-API boundaries (services dont call services; product APIs stay one-to-one with the user journeys they serve) as the team scales its footprint.

• 7 years of experience in software engineering with strong backend/distributed-systems fundamentals designing services and APIs that need to be reliable and maintainable not just prototypes.
• Hands-on experience building and shipping 0-to-1 products or features in a fast-iteration environment with real customers ideally using design-partner or similar validation approaches.
• Experience building with or integrating multiple LLM providers (e.g. Claude Gemini OpenAI) and document-extraction tooling (e.g. AWS Textract GCP Document AI) including knowing when to fall back from a structured extraction tool to an LLM.
• Experience building agent harnesses RAG pipelines or other AI/LLM-integrated workflows along with the evals or testing practices needed to trust and improve them.
• Data engineering ML or heavy document-processing background is a strong plus a meaningful share of this teams work is reasoning over unstructured non-standardized documents (legal terms covenants inspection reports).
• Comfort working across the stack as needed this is a full-stack-capable engineering role not a narrowly scoped frontend or backend specialization plus genuine curiosity about the customer problem low ego and a preference for working closely with product rather than in a handoff model.
• Experience in financial services construction real estate payments lending insurance or other complex B2B environments is a meaningful differentiator though not required.

• Youve made a substantial visible contribution in at least one of the teams three workstreams a platform primitive that other bets now build on a new product taken from hypothesis to a validated pilot with real customers or a measurable adoption/usage improvement on a live product.
• Youve built or meaningfully improved at least one agent-driven or AI-integrated system thats in production use.
• Engineers and cross-functional partners on the team would describe you as a strong collaborator who raises the bar on system design and is genuinely curious about the customer problem not just the code.
• If you mentored the teams newer engineer(s) theyre visibly applying stronger patterns in their own work.

• Leverage AI tools to enhance the productivity quality and speed of your work.
• Use AI to support drafting analysis summarization and problem-solving across your role.
• Identify opportunities to streamline workflows and reduce manual effort through automation and AI.
• Apply AI to sharpen decision-making and strengthen technical and product insights.
• Share effective AI use cases and best practices with your team.

Builts salary range for this position is $180000-$240000 USD per year. The pay range is designed to accommodate upward mobility in the role; therefore it encompasses the full span of proficiency levels for this role and we believe that the midpoint of the range is competitive in the market. Salary is just one component of Builts total compensation package for employees; your total rewards package at Built will include equity market-current medical dental and vision coverage an unlimited PTO policy and other benefits.

Travel Requirement: Employees who are not based in the Nashville area are required to travel to our Nashville office at least twice per year for company gatherings such as Connect Week. Additional travel to Nashville may be required based on your role and business needs.

Perks:

• The rare opportunity to radically disrupt a $1.5T industry
• Competitive benefits including: uncapped vacation US ONLY medical dental & vision insurance
• Robust compensation package including equity in the form of stock options
• Learning Grant program to support ongoing professional development
• 401k with match and expedited vesting US ONLY

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