Principal Mechanical Design Engineer

HEN Technologies is a deep-tech company building the world’s first end-to-end intelligent fire suppression ecosystem, powered by AI, IoT, and advanced fluid dynamics. Our mission is to modernize how the world prevents and responds to fires by replacing outdated, manual systems with connected, data-driven technology that is more water-efficient and intelligently coordinated across every layer of the fire ground. Backed by top-tier Venture Capital, HEN Technologies is proving that the future of fire defense is intelligent, connected, and preventative.

HEN Technologies is a deep-tech company building the world’s first end-to-end intelligent fire suppression ecosystem, powered by AI, IoT, and advanced fluid dynamics. Our mission is to modernize how the world prevents and responds to fires by replacing outdated, manual systems with connected, data-driven technology that is more water-efficient and intelligently coordinated across every layer of the fire ground. Backed by top-tier Venture Capital, HEN Technologies is proving that the future of fire defense is intelligent, connected, and preventative.

HEN Technologies is seeking a Principal Mechanical Engineer to serve as our lead technical authority on complex electro-mechanical systems. Reporting directly to the CEO, you will act as a high-impact a "force multiplier" across our engineering organization. This is a role for an elite designer who can toggle between high-level strategy and deep-level execution on product vision to a hands-on deep dive in a Solid Works assembly in the same afternoon.

• Project Leadership: Own and execute the most technically demanding projects in our roadmap, involving complex mechanical assemblies with IoT-integrated controls.
• Cross-Functional Support: Interface with multiple R&D teams to provide bandwidth and expert guidance when projects reach critical complexity or hit technical bottlenecks.
• System Optimization: Refine designs for maximum reliability in extreme environments, focusing on the synergy between motors, gears, PCBs, and high-pressure fluid paths.
• Technical Gatekeeping: Lead rigorous design reviews across the engineering org, ensuring all hardware meets our standards for performance, safety, and DFM.
• Rapid Innovation: Lead the mechanical R&D for next-generation products, proving out concepts through rapid prototyping and advanced simulation.

• Experience: 15+ years of experience in high-complexity mechanical design, with a portfolio of shipped electro-mechanical products (robotics, fluid systems, or aerospace).
• Solid Works Mastery: Expert-level proficiency in Solid Works, including advanced surfacing, simulation (FEA/CFD), and complex assembly management.
• Domain Expertise: Deep knowledge of gear design, motor selection, fluid dynamics, and ruggedization for harsh environments.
• Communication: Ability to distill highly technical concepts for the CEO and executive team while being able to mentor and guide junior engineering talent.
• Education: B.S./M.S. in Mechanical Engineering or a related field.