Senior Full-Stack SaaS Developer — AI-Powered Building Asset Intelligence Platform

Project: DATUM Buildings Engagement: Paid technical discovery, with potential follow-on MVP development Discovery budget: $750–$1,000 fixed price (posted budget: $1,000) Estimated MVP development budget: $7,000, subject to technical validation Location: Remote Project Overview DATUM is developing a B2B software platform that helps commercial real estate owners organize building asset information, verify technical records, and make more informed capital investment decisions. We are seeking an experienced senior full-stack developer or technical architect to review our Product Requirements Document and develop a practical implementation plan for a lean, secure MVP. Proposed Technology • Next.js, React, and TypeScript • PostgreSQL • Managed authentication and secure file storage • AI-assisted PDF document extraction • Cloud deployment • Multi-tenant SaaS architecture We are open to alternative technologies if the developer can explain their cost, security, and maintenance advantages. Initial Discovery Deliverables 1. Review the existing PRD and identify technical gaps. 2. Recommend the application architecture and technology stack. 3. Define the database schema and tenant isolation approach. 4. Specify the AI document extraction and human verification workflow. 5. Prepare a security, hosting, and deployment plan. 6. Break MVP development into milestones with measurable acceptance criteria. 7. Identify technical risks, exclusions, ongoing operating costs, and any requirements that cannot reasonably fit within the proposed budget. Definition of Done Deliver a written discovery package covering all seven deliverables above, including a database diagram, tenant isolation design, extraction and verification workflow, operating-cost estimates with assumptions, and an MVP milestone plan with testable acceptance criteria. Required Experience Demonstrated experience delivering production SaaS applications, PostgreSQL data modeling, authentication, file storage, AI API integrations, and secure cloud deployments. Experience with construction technology, commercial real estate, asset management, or document intelligence is advantageous. Application Instructions Please include two relevant SaaS projects, your proposed technology stack, your fixed price for discovery, your estimated completion timeline, and a brief explanation of how you would implement secure multi-tenant data separation. Important: Discovery is a standalone paid engagement. Follow-on development is not guaranteed and will be awarded based on the quality and feasibility of the proposed implementation plan.