# Senior Mechanical Engineer

> Enexor · Franklin, United States · Full-time · Posted 2026-05-06

**Workplace:** on_site

## Description

**Pioneering Carbon Conversion and Renewable Energy Systems**

Location: Franklin, TN (On-Site)  
Type: Full-Time  
Experience Level: Mid to Senior

### Join Enexor BioEnergy

Located just outside Nashville, TN, Enexor is a fast-moving early-stage climate tech company building small-scale, waste-to-value systems that convert organic and plastic waste into renewable energy and high-purity CO₂. We’re not just innovating—we’re disrupting the status quo.

Why Join Us?

-   Mission-first impact: Help turn waste and emissions into energy and carbon-negative value streams.
-   Hands‑on innovation: Engineers here don’t just design—they build, test, iterate, and deploy real systems.
-   People over process: We move fast, cut red tape, and trust smart, driven individuals to take ownership.
-   High-value team: We hire the best; we challenge each other; we win together.

If you're ready to move beyond the drawing board and make real-world impact, come help shape the future of distributed energy and carbon conversion systems.

### The Role

We’re hiring Senior Mechanical Engineers and a Mechanical Engineering Manager to support the design, development, and deployment of our next-generation waste-to-energy system and our post-combustion carbon capture system. These roles will focus on subsystem design, cross-functional integration, and end-to-end ownership of mechanical program execution.

These positions are ideal for senior-level engineers and technical leaders who thrive in a fast-paced, hardware-driven environment. You'll be involved from initial concept and design through fabrication, testing, and deployment.

### Key Responsibilities

-   Design, model, and test mechanical subsystems for gas separation, thermal systems, and pressure environments.
-   Integrate capture modules with upstream flue gas sources and downstream conditioning units.
-   Own full mechanical lifecycle from concept through CAD, DFM, BOM, sourcing, and assembly.
-   Use tools like INVENTOR, ANSYS, ASPEN, and MATLAB to optimize design performance.
-   Lead testing and validation: build rigs, instrument systems, collect data, and iterate fast.
-   Collaborate with process, controls, and fabrication teams to ensure seamless system integration.
-   Support design-to-cost strategy and scaling for manufacturability.

## Requirements

### Required Qualifications

-   B.S. or M.S. in Mechanical Engineering or related discipline.
-   3–10 years of mechanical design and systems integration experience.
-   Strong proficiency in 3D CAD (Autodesk Inventor preferred) with working knowledge of FEA and CFD.
-   Demonstrated ability to take systems from concept to prototype to deployment.
-   Hands-on experience with piping, pressure systems, structural frames, or heat exchangers.
-   Solid analytical and first-principles problem-solving skills.

### Preferred Experience

-   Experience working with swing adsorption systems (e.g., PSA, VSA, or similar gas separation technologies).
-   Background in flue gas treatment, gas purification, or emissions control systems.
-   Familiarity with containerized or modular systems for field deployment.
-   Experience in techno-economic analysis or cost-driven design.
-   Certifications such as P.E., PMP, or MBA are beneficial but not required.

## Benefits

### Compensation & Benefits

-   Equity opportunity in a fast-scaling, venture-backed climate tech company.
-   Competitive salary based on experience and impact.
-   Health insurance stipend (QSEHRA) and 401(k) plan.
-   Paid vacation and holidays.

To Apply:  
Send your resume and a brief note to careers@enexor.com. Highlight your experience with swing adsorption or mechanical system development in clean energy or gas separation.

## Apply

[Apply at Enexor](https://apply.workable.com/enexor/j/E3F0A021F8/apply)

---
Powered by [Workable](https://www.workable.com)