2NDNATURE is a small SaaS company providing stormwater management software. Seeking a Director of Engineering (player-coach) who will be hands-on (≈60% coding) and mentor a small team, lead the transition to an AI-first platform using tools like Cla…

Founding backend/systems engineer role to own large parts of the backend and help scale battery simulation and optimization software. Work includes building APIs and data models for simulation and optimization workflows, FastAPI and async Python dev…

Ionworks builds battery simulation and optimization software used by R&D teams designing next-generation batteries. Seeking a founding backend/systems engineer to own large pieces of the backend and help scale from early customers to broader industr…