Team
Who builds Heff.world - principal engineer and collaborators.
Principal
JJ Heffernan - Philadelphia area (Delaware roots). Web and product engineering, embedded firmware, CAD and mechanical design. Background spans FSAE, DAQ, tire modeling, and production Astro sites.
How we staff work
Most delivery is principal-led with trusted specialists brought in per project (fabrication, specialized simulation, design). You always have a single point of contact for scope and technical decisions.