Software Engineer, Full Stack Developer, Backend Developer

A founder-owned technology company serving the built environment and decarbonization space is rebuilding its core platform following a recent restructuring. The business is bootstrapped and self-funded, and it's shifting from a pure software model toward a consulting-led approach, using proprietary tooling to support hands-on advisory work for clients.

Government clients are part of the pipeline, and renewed work with that segment depends on compliance readiness being handled separately from this role.

This is a rebuild mandate, not a maintenance job. The company needs someone who will personally write the platform's next chapter: making the architecture and data-layer calls, shipping code day to day, and acting as the technical backstop for a non-technical founder. It suits someone who wants real ownership without layers of process, and who treats AI-assisted development as a genuine working method rather than an occasional tool.

• Rebuild core platform components from the ground up on a new technical foundation, applying past lessons without inheriting old code
• Decide and document the architecture and data-layer approach, including whether the current database choice still holds up long term
• Write and ship production code yourself, day in and day out
• Act as the technical sounding board on major decisions, working directly with a non-technical founder
• Support the platform after launch, handling issues as they surface once things stabilize

• Production experience with React, Node, Type Script, and a document-oriented database such as MongoDB
• A track record of working independently at a senior or staff level, without close oversight
• Real, demonstrated use of AI coding agents: directing outcomes and reviewing generated code rather than leaning on autocomplete
• Sharp system design instincts, with the judgment to make and defend architecture calls
• Experience building or rebuilding a product from zero

This is a chance to set the technical foundation of a platform and be the person a founder leans on for the decisions that matter, not a step removed from them. The company isn't chasing hypergrowth or an investor timeline, so pace is set by doing the work right, not by a funding clock. It starts part-time, with room to grow as the engagement takes shape.