Senior Mechanical Engineer
Enexor BioEnergy
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. 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. 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 View email address on click.appcast.io. Highlight your experience with swing adsorption or mechanical system development in clean energy or gas separation. #J-18808-Ljbffr
$68k - $93k
....HVAC Controls Systems Engineer page is loaded## HVAC Controls Systems Engineerlocations: Franklin-Tennessee-United States of Americatime type: Full timeposted on: Posted Todayjob requisition id: WD30262918**What you will do:**Under general direction, responsible for...SuggestedContract workFor contractorsWork experience placementFor subcontractor- ...components—leveraging decades of precision manufacturing and engineering excellence.Join a highly motivated team in Franklin, USA, where... ...involving the application of a wide variety of mechanical engineering principles in the origination or modification of...SuggestedLocal areaWorldwide
$100k - $130k
...Description AECOM has a position available for a mid-career Mechanical Engineer to support our multi-disciplinary design team addressing the... ...who can make decisions independently under the guidance of senior staff. It is an excellent career opportunity for an engineer...SuggestedContract workFor contractorsWork at officeRemote workRelocation packageFlexible hours- ...Overview Operations Engineering at DCS encompasses Project and Mechanical Engineers that perform all engineering activities from receipt of contract through commissioning and close-out of a project. We pride ourselves on creativity, problem-solving, solid engineering techniques...SuggestedContract workFor subcontractorCasual workWork at officeLocal areaRemote workFlexible hours
$120k - $180k
...end solution is brought to market quickly and meets our customer's needs. What You’ll Do This position reports to the Mechanical Engineering Manager and is responsible for the mechanical design and validation of the next module or the next chassis that we bring to...Suggested- ...‑world impact, this is the kind of place where your work will matter every day. The Opportunity We have openings for Mechanical or Biomedical Engineers who are either recent graduates or have up to five years of professional experience. You will help design and develop...
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- ...Job Overview The Senior Estimator assists the preconstruction team through the development of cost estimates, value management, and estimate proposal reports. The position requires the knowledge and expertise to quantify, price and qualify all building systems and components...SeniorFull timeFor contractorsFor subcontractorLocal areaImmediate start
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$100k
...LHH is excited to partner with an acquisitive healthcare company in search of a Senior Accountant. This is a fantastic opportunity to join a dynamic, collaborative team where your expertise will make an impact. Why You’ll Love This Role: Hybrid flexibility, 1-3 days in...SeniorWork at office- ...Senior Estimator The Senior Estimator assists the preconstruction team through the development of cost estimates, value management, and estimate proposal reports. The position requires the knowledge and expertise to quantify, price and qualify all building systems...SeniorFor contractorsFor subcontractor
- ...Franklin, TN (On-Site) Type: Full-Time Seniority: Skilled Technical Contributor Join Enexor... ...whiteboard. They get built. We need a Mechanical CAD Designer who can own our product... ...drawings, and collaborating daily with engineers across mechanical, electrical, and process...Full time
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$95k
...Senior Accountant | Hybrid Schedule | Growth to Accounting Manager | Up to $95k | Franklin, TN We are partnering with a growing and well-established Private Equity backed distribution company in the Franklin area that is looking to add a Senior Accountant to their accounting...SeniorImmediate startRemote workFlexible hours2 days per week$71.6k - $119.4k
...Senior Accounting Analyst About the Business: LexisNexis Risk Solutions is the essential partner in the assessment of risk. Within our Business Services vertical, we offer a multitude of solutions focused on helping businesses of all sizes drive higher revenue growth...SeniorLocal area- Location: Franklin, TN Job Schedule: Full-time, Hybrid (4 days on-site) Education Requirement: Bachelor's degree Sponsorship: No Come Drive Innovation with Us. We are currently looking for a Sr. Manager - Risk Management to join our team in Franklin, TN. Nissan's Global...SeniorFull timeLocal area
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- ...and point of care support. How you make a difference We are seeking a dynamic and successful problem solver to fill the Enterprise Senior Project Manager role within our industry‑leading Healthcare practice. This leader will leverage exceptional communication skills and...Senior
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