Director of Engineering

Posted 2 Days Ago
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Franklin, TN, USA
In-Office
Senior level
Energy
The Role
Lead and scale a multidisciplinary mechanical, electrical, and controls engineering team to design, prototype, fabricate, and deploy distributed waste-to-energy and carbon capture systems. Own technical architecture across combustion, thermal, gas separation, pressure, and controls subsystems; build engineering processes, guide trade-offs, support manufacturing and field commissioning, and partner with executives on strategy and hiring.
Summary Generated by Built In
Build the Future of Carbon Conversion & Renewable Energy

Location: Franklin, TN (On-Site)
Type: Full-Time
Seniority: Director / Leadership

Join Enexor BioEnergy

Enexor is a venture-backed, early-stage climate tech company just outside of Nashville, TN, developing distributed systems that turn organic and plastic waste into clean energy and high-purity CO₂. We are reimagining how the world addresses emissions, waste, and energy access—one modular system at a time.

We’re not just solving problems. We’re redefining what’s possible at the intersection of engineering, energy, and sustainability.

Why This Role Matters

We’re seeking a Director of Engineering to lead and scale our multidisciplinary engineering team as we develop, build, and deploy the next generation of our waste-to-energy and carbon capture systems. You’ll be both strategist and builder—setting the engineering vision, managing execution, and rolling up your sleeves to help solve complex hardware challenges.

This is a critical leadership role reporting directly to the CEO. You will own the engineering organization while collaborating across product development, fabrication, and field deployment to take ideas from whiteboard to world-changing systems.

What You’ll Do
  • Lead and grow a world-class mechanical, electrical, and controls engineering team.
  • Drive end-to-end product development—from concept to CAD, DFM, fabrication, commissioning, and continuous improvement.
  • Build scalable engineering processes that support rapid prototyping and high-reliability deployment.
  • Own technical architecture decisions and cross-functional integration across subsystems (combustion, thermal, gas separation, pressure, controls).
  • Guide engineering trade-offs with strong first-principles thinking and cost-performance analysis.
  • Partner with the CEO and executive team on strategic initiatives, resource planning, and technical hiring.
  • Instill a culture of ownership, urgency, and innovation in everything you build.

RequirementsWhat We’re Looking For
  • B.S. or M.S. in Mechanical Engineering or related field; deep hardware/system experience required.
  • 10+ years of engineering experience, including 5+ in technical leadership or management roles.
  • Proven success developing complex mechanical or thermal systems—ideally in energy, emissions, or industrial environments.
  • Hands-on experience with pressure vessels, piping, structural systems, heat transfer, or adsorption tech is a major plus.
  • Strong grasp of CAD (Inventor), simulation (FEA/CFD and other Process Modeling), and manufacturing workflows.
  • Comfortable wearing multiple hats: player-coach, mentor, problem-solver, and executor.
  • Bonus: Familiarity with modular product design, automation, or containerized systems.

BenefitsWhy You’ll Love It Here
  • Mission with urgency: You’ll help solve real-world energy and emissions problems with technology that scales.
  • No red tape: Fast decisions, flat org, and deep ownership.
  • Equity upside: This is an early-stage leadership opportunity with real skin in the game.
  • True engineering culture: We build, we test, we fix, we deploy.
Compensation & Benefits
  • Competitive salary + equity stake in a fast-growing climate tech company.
  • 401(k) plan and health insurance stipend (QSEHRA).
  • Paid vacation and holidays.
Ready to Lead?

Send your resume and a brief note about your background to [email protected]. We’re especially interested in candidates who have led teams building high-performance energy systems, carbon capture, or other hard-tech infrastructure.

Skills Required

  • B.S. or M.S. in Mechanical Engineering or related field; deep hardware/system experience
  • 10+ years of engineering experience, including 5+ in technical leadership or management roles
  • Proven success developing complex mechanical or thermal systems
  • Hands-on experience with pressure vessels, piping, structural systems, heat transfer, or adsorption technology
  • Strong grasp of CAD (Inventor), simulation (FEA/CFD and other process modeling), and manufacturing workflows
  • Experience making technical architecture decisions and integrating subsystems (combustion, thermal, gas separation, pressure, controls)
  • Ability to act as player-coach: mentor, problem-solver, and executor
  • Familiarity with modular product design, automation, or containerized systems
Am I A Good Fit?
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The Company
HQ: Franklin, TN
25 Employees
Year Founded: 2015

What We Do

Enexor BioEnergy ("Enexor") provides on-site, renewable energy solutions to help solve the world's organic and plastic waste problem. Enexor's patented bioenergy system derives value from organic waste by producing 24/7 continuous power and thermal energy for facilities and microgrids worldwide. Enexor's Bio-CHP™ system, the Bio-200™, generates 75kW of power and 125kW of thermal energy while offsetting harmful greenhouse gas emissions. Enclosed within a 20-foot custom shipping container, the Bio-200™'s strategic design is deployable next to a retail store in the United States, hurricane exposed areas in the Caribbean, or a village in Africa. Enexor manufactures its systems at its headquarters in Franklin, Tennessee, a Nashville suburb. Enexor's mission is to create renewable onsite bioenergy from organic and plastic waste to power facilities worldwide.

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