{"id":786931,"url":"https://alion.io/job/enexor-senior-mechanical-engineer","title":"Senior Mechanical Engineer","company":{"id":673799,"name":"Enexor","domain":"enexor.com","url":"https://alion.io/company/enexor","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":75,"open_postings":6,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Franklin, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":86000,"max_usd":162000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":6333},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"MATLAB","optional":false}],"status":"live","first_seen_at":"2026-05-06T00:00:00Z","employer_posted_date":"2026-05-06","last_verified_at":"2026-10-30T07:04:08Z","board_verified":true,"closed_at":null,"days_open":177,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":176},"description":"Pioneering Carbon Conversion and Renewable Energy Systems\nLocation: Franklin, TN (On-Site)\nType: Full-Time\nExperience Level: Mid to Senior\nJoin Enexor BioEnergy\nLocated 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.\nWhy Join Us?\n Mission-first impact: Help turn waste and emissions into energy and carbon-negative value streams.\n Hands-on innovation: Engineers here don’t just design-they build, test, iterate, and deploy real systems.\n People over process: We move fast, cut red tape, and trust smart, driven individuals to take ownership.\n High-value team: We hire the best; we challenge each other; we win together.\n 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.\nThe Role\nWe’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.\nThese 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.\nKey Responsibilities\n Design, model, and test mechanical subsystems for gas separation, thermal systems, and pressure environments.\n Integrate capture modules with upstream flue gas sources and downstream conditioning units.\n Own full mechanical lifecycle from concept through CAD, DFM, BOM, sourcing, and assembly.\n Use tools like INVENTOR, ANSYS, ASPEN, and MATLAB to optimize design performance.\n Lead testing and validation: build rigs, instrument systems, collect data, and iterate fast.\n Collaborate with process, controls, and fabrication teams to ensure seamless system integration.\n Support design-to-cost strategy and scaling for manufacturability.\n Requirements\nRequired Qualifications\n B.S. or M.S. in Mechanical Engineering or related discipline.\n 3-10 years of mechanical design and systems integration experience.\n Strong proficiency in 3D CAD (Autodesk Inventor preferred) with working knowledge of FEA and CFD.\n Demonstrated ability to take systems from concept to prototype to deployment.\n Hands-on experience with piping, pressure systems, structural frames, or heat exchangers.\n Solid analytical and first-principles problem-solving skills.\n Preferred Experience\n Experience working with swing adsorption systems (e.g., PSA, VSA, or similar gas separation technologies).\n Background in flue gas treatment, gas purification, or emissions control systems.\n Familiarity with containerized or modular systems for field deployment.\n Experience in techno-economic analysis or cost-driven design.\n Certifications such as P.E., PMP, or MBA are beneficial but not required.\n Benefits\nCompensation & Benefits\n Equity opportunity in a fast-scaling, venture-backed climate tech company.\n Competitive salary based on experience and impact.\n Health insurance stipend (QSEHRA) and 401(k) plan.\n Paid vacation and holidays.\n To Apply:\nSend your resume and a brief note to . 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