Founding MEP Software Engineer

About the Role Join an early-stage AI-powered AEC software company as a founding engineer for its MEP product area. You will combine hands-on MEP design expertise with software engineering to shape workflows and help advance how buildings are designed. What You'll Do Build HVAC, electrical, plumbing, and piping content libraries on a code-first CAD platform, defining criteria for AI-generated work. Shape the MEP product roadmap by identifying workflow needs, product opportunities, and gaps in the current approach. Review AI-generated MEP designs for engineering standards and real-world requirements. Work with MEP design firms to understand workflows, develop initial content libraries, and support customer onboarding. Write Python and TypeScript/React software to build platform features and content packs, using AI coding tools to accelerate development. What We're Looking For 2 to 10 years of professional MEP design experience at an engineering firm in HVAC, electrical, or plumbing systems. Software engineering experience beyond basic scripting, with professional experience in Python, TypeScript, full-stack development, or related work. A BS or MS in mechanical engineering, computer science, physics, or computational design, ideally from a highly regarded program. Hands-on HVAC knowledge, such as ductwork layouts, load calculations, and equipment selection, and familiarity with CAD/BIM tools such as Revit or AutoCAD. Initiative in developing product ideas, experience with occasional customer-facing work, and an interest in rethinking MEP workflows with AI. Experience with internal automation, AI, or computational design in an MEP or AEC setting is helpful. Compensation & Benefits Base salary: $150,000 to $200,000 annually. Visa sponsorship is available. Location On-site in San Francisco, California. Relocation assistance is available.