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Execute fast-start dispatches, respond to alarms, and provide effective communication to the facility operations team.   Maintain shift logs, LOTO records, and regulatory compliance documentation</p>\n<ul>\n<li>Perform Mechanical maintenance specific to LM6000:</li>\n</ul>\n<p>Perform Level 1–2 maintenance, borescope inspections, combustor/TBC inspections, and unit alignment.   Replace VBV/IGV actuators, perform lube oil system maintenance, and service starters/clutches</p>\n<ul>\n<li>Perform Electrical maintenance:</li>\n</ul>\n<p>Test and maintain 13.8 kV switchgear, generator breakers, and MODs   Test exciter, and AVR; calibrate protective relays; support black-start diesel   Troubleshoot 480 V MCCs, test motors, and perform infrared thermography</p>\n<ul>\n<li>Perform Instrumentation &amp; Controls (I&amp;C) duties:</li>\n</ul>\n<p>Calibrate and troubleshoot vibration, temperature, pressure, and speed sensors   Test fire &amp; gas systems (Det-Tronics, etc.) and perform loop checks</p>\n<ul>\n<li>Perform Water Treatment &amp; Chemistry duties:</li>\n</ul>\n<p>Operate Reverse Osmosis/demineralized water system daily for NOx water, SPRINT, fogging, and water wash system.   Test water purity (conductivity, silica, TDS, ph), dose chemicals, and regenerate resin beds</p>\n<ul>\n<li>Execute LOTO, hot work, confined-space permits</li>\n<li>Lead or support scheduled LM6000 borescope, combustion, and hot section outages</li>\n<li>Maintain critical spares inventory and CMMS records.</li>\n<li>Mentor apprentices and contractors</li>\n</ul>\n<p><strong>Basic Qualifications</strong></p>\n<ul>\n<li>Minimum 2–5 years of direct hands-on experience on LM 6000 aeroderivative turbines (Level 1/2/3 maintenance qualified strongly preferred)</li>\n<li>Demonstrated competency in at least three of the five core disciplines: Control Room Operations, Mechanical, Electrical, I&amp;C, and Water Treatment/Chemistry</li>\n<li>Ability to read and interpret LM6000-specific P&amp;IDs, electrical one-line diagrams, Medium-voltage experience is a plus</li>\n<li>Strong computer skills</li>\n<li>Valid driver’s license and ability to pass background check, drug screen, respiratory fit test, and physical</li>\n<li>Physical Requirements:</li>\n</ul>\n<p>Work at heights, in confined spaces, and around high-voltage equipment   Lift 50+ lbs repeatedly, climb turbine enclosures, and wear full PPE including respirator   Tolerate high heat and humidity inside LM6000 enclosures and outdoor extreme weather conditions</p>\n<p><strong>Preferred Skills and Experience</strong></p>\n<ul>\n<li>LM6000 Level 1, 2, or 3 Maintenance Certification</li>\n<li>DCS Maintenance &amp; Troubleshooting</li>\n<li>NFPA 70E Electrical Safety</li>\n<li>Vibration Analyst Category II or higher</li>\n</ul>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_247c0fc6-451","directApply":true,"hiringOrganization":{"@type":"Organization","name":"xAI","sameAs":"https://www.xai.com/","logo":"https://logos.yubhub.co/xai.com.png"},"x-apply-url":"https://job-boards.greenhouse.io/xai/jobs/4992581007","x-work-arrangement":"onsite","x-experience-level":"mid","x-job-type":"full-time","x-salary-range":null,"x-skills-required":["LM6000 aeroderivative turbines","Control Room Operations","Mechanical maintenance","Electrical","Instrumentation & Controls (I&C)","Water treatment/chemistry","DCS Maintenance & Troubleshooting","NFPA 70E Electrical Safety","Vibration Analyst Category II or higher"],"x-skills-preferred":["LM6000 Level 1, 2, or 3 Maintenance Certification"],"datePosted":"2026-04-18T15:48:00.573Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Memphis, TN; Southaven, MS"}},"employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Technology","skills":"LM6000 aeroderivative turbines, Control Room Operations, Mechanical maintenance, Electrical, Instrumentation & Controls (I&C), Water treatment/chemistry, DCS Maintenance & Troubleshooting, NFPA 70E Electrical Safety, Vibration Analyst Category II or higher, LM6000 Level 1, 2, or 3 Maintenance Certification"},{"@context":"https://schema.org","@type":"JobPosting","identifier":{"@type":"PropertyValue","name":"YubHub","value":"job_69e03d0f-d0f"},"title":"Mechanical Commissioning Engineer","description":"<p>We are seeking an experienced Mechanical Commissioning Engineer to join our infrastructure team. In this role, you will lead and execute the commissioning, testing, and handover of critical mechanical systems supporting xAI&#39;s AI supercomputing facilities.</p>\n<p>Your scope includes chiller plants, HVAC, water treatment, liquid cooling, and related infrastructure. You will ensure systems are fully operational, reliable, and compliant with design intent, safety standards, and performance requirements before transitioning to operations.</p>\n<p>This hands-on position combines strategic commissioning planning with on-site execution to minimize risks, validate performance, and enable rapid scaling of high-density compute environments.</p>\n<p>Responsibilities:</p>\n<ul>\n<li>Develop, implement, and maintain comprehensive commissioning plans, protocols, test procedures, checklists, and scripts for mechanical systems with related control systems</li>\n</ul>\n<ul>\n<li>Lead functional, integrated systems, and performance testing (including factory acceptance testing (FAT), site acceptance testing (SAT), and integrated system testing) to verify system readiness and compliance with specifications</li>\n</ul>\n<ul>\n<li>Coordinate with design engineers, construction teams, vendors, and operations to resolve issues, perform troubleshooting, and execute corrective actions during commissioning phases</li>\n</ul>\n<ul>\n<li>Conduct thorough documentation of test results, deficiencies, punch lists, and as-built conditions; prepare commissioning reports and turnover packages for operations handover</li>\n</ul>\n<ul>\n<li>Perform quality assurance reviews of system installations, calibrations, sequences of operations, and safety interlocks</li>\n</ul>\n<ul>\n<li>Support startup and initial operations of chillers, HVAC, liquid cooling, CRAC/CRAH units, or other datacenter critical mechanical infrastructure</li>\n</ul>\n<ul>\n<li>Identify risks and opportunities for improvement in commissioning processes; recommend enhancements to standards, tools, and workflows</li>\n</ul>\n<ul>\n<li>Collaborate cross-functionally to ensure seamless integration of bespoke AI infrastructure systems (e.g., advanced cooling, monitoring/BMS)</li>\n</ul>\n<ul>\n<li>Maintain a strong focus on safety, compliance with industry codes and standards (ASHRAE, NFPA, etc.), and xAI&#39;s operational excellence standards in fast-paced, high-stakes environments</li>\n</ul>\n<p>Basic Qualifications:</p>\n<ul>\n<li>Bachelor’s degree in Mechanical Engineering or a related field (or equivalent practical experience)</li>\n</ul>\n<ul>\n<li>Proficient in commissioning tools and processes (e.g., test plan development, data logging, fault simulation, and integrated systems testing)</li>\n</ul>\n<ul>\n<li>Experienced with mechanical systems (HVAC, chilled water plants, CRAC/CRAH, liquid cooling, water treatment)</li>\n</ul>\n<ul>\n<li>Detail-oriented with excellent analytical, problem-solving, and troubleshooting skills under tight deadlines</li>\n</ul>\n<ul>\n<li>Strong communicator capable of working effectively with multidisciplinary teams, contractors, and stakeholders</li>\n</ul>\n<ul>\n<li>Comfortable in a dynamic, fast-moving environment with evolving priorities and ambitious timelines</li>\n</ul>\n<p>Preferred Skills and Experience:</p>\n<ul>\n<li>5+ years of hands-on commissioning experience in mission-critical facilities (data centers, industrial plants, or similar high-reliability environments), with strong focus on mechanical systems</li>\n</ul>\n<ul>\n<li>Experience commissioning datacenter infrastructure, liquid cooling systems, or AI/high-performance compute facilities</li>\n</ul>\n<ul>\n<li>Familiarity with tools like BMS/EPMS, Navisworks, or commissioning management software</li>\n</ul>\n<ul>\n<li>Knowledge of redundancy architectures (N+1, 2N), energy efficiency metrics (PUE), and safety protocols in mechanical systems</li>\n</ul>\n<ul>\n<li>Previous owner-side or client-facing commissioning role</li>\n</ul>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_69e03d0f-d0f","directApply":true,"hiringOrganization":{"@type":"Organization","name":"xAI","sameAs":"https://www.xai.com/","logo":"https://logos.yubhub.co/xai.com.png"},"x-apply-url":"https://job-boards.greenhouse.io/xai/jobs/5082723007","x-work-arrangement":"onsite","x-experience-level":"senior","x-job-type":"full-time","x-salary-range":null,"x-skills-required":["commissioning tools and processes","mechanical systems","HVAC","chilled water plants","CRAC/CRAH","liquid cooling","water treatment","detail-oriented","analytical","problem-solving","troubleshooting","strong communicator"],"x-skills-preferred":["5+ years of hands-on commissioning experience","datacenter infrastructure","liquid cooling systems","AI/high-performance compute facilities","BMS/EPMS","Navisworks","commissioning management software","redundancy architectures","energy efficiency metrics","safety protocols"],"datePosted":"2026-04-18T15:24:03.274Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Memphis, TN"}},"employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Technology","skills":"commissioning tools and processes, mechanical systems, HVAC, chilled water plants, CRAC/CRAH, liquid cooling, water treatment, detail-oriented, analytical, problem-solving, troubleshooting, strong communicator, 5+ years of hands-on commissioning experience, datacenter infrastructure, liquid cooling systems, AI/high-performance compute facilities, BMS/EPMS, Navisworks, commissioning management software, redundancy architectures, energy efficiency metrics, safety protocols"},{"@context":"https://schema.org","@type":"JobPosting","identifier":{"@type":"PropertyValue","name":"YubHub","value":"job_52b1943e-12e"},"title":"Maintenance Fitter - Day Shift","description":"<p>We&#39;re looking for a skilled Maintenance Fitter to join our team at our Horsham site. As a Maintenance Fitter, you&#39;ll be responsible for carrying out planned preventative maintenance and responding to reactive breakdowns to ensure our equipment and plant are kept in safe and efficient working order.</p>\n<p><strong>Key Responsibilities:</strong></p>\n<ul>\n<li>Carry out planned preventative maintenance to minimise downtime and ensure equipment and plant are kept in safe and efficient working order</li>\n<li>Respond to reactive breakdowns and diagnose faults to ensure effective repairs and improvements are conducted within minimum time scale</li>\n<li>Install work to required standards and carry out minor maintenance operations to cogeneration plants</li>\n<li>Develop and implement a programme of planned preventative maintenance and inspection to minimise downtime, provide records of recurrent faulting and develop engineered solutions to these issues</li>\n<li>Liaise with external contractors on specific repairs/maintenance work</li>\n<li>Keep abreast of changes to health &amp; safety, environmental legislation and Company policies and procedures to ensure defined standards and best practice are implemented</li>\n<li>Review maintenance activities, implementing necessary corrective actions as required</li>\n<li>Report to Shift Supervisor, although must interact with Engineering Manager</li>\n<li>Liaise with the Shift Supervisor in planning any downtime so as to minimise the impact to the production</li>\n</ul>\n<p><strong>Requirements:</strong></p>\n<ul>\n<li>2 years&#39; experience as Electrical or Mechanical Fitter (or position of similar responsibility ideally in a green waste/water treatment process plant or similar)</li>\n<li>Proven track record of working to clearly defined KPI&#39;s</li>\n<li>Proven track record of delivering continuous improvement within an operational environment</li>\n</ul>\n<p><strong>Benefits:</strong></p>\n<ul>\n<li>Ongoing career development, training and coaching</li>\n<li>Generous pension scheme</li>\n<li>Retail and leisure discounts</li>\n<li>Holiday and travel discounts</li>\n<li>Life cover</li>\n<li>Dedicated to diversity and inclusion</li>\n</ul>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">XML job scraping automation by <a href=\"https://yubhub.co\">YubHub</a></p>","url":"https://yubhub.co/jobs/job_52b1943e-12e","directApply":true,"hiringOrganization":{"@type":"Organization","name":"Biffa","sameAs":"https://apply.workable.com","logo":"https://logos.yubhub.co/j.com.png"},"x-apply-url":"https://apply.workable.com/j/5213F3DA1C","x-work-arrangement":"onsite","x-experience-level":"mid","x-job-type":"full-time","x-salary-range":"up to £40,876.43 per annum","x-skills-required":["Electrical Fitter","Mechanical Fitter","Maintenance","Planned Preventative Maintenance","Reactive Breakdowns","Cogeneration Plants"],"x-skills-preferred":["Green waste/water treatment process plant","Similar responsibility"],"datePosted":"2026-03-09T16:18:07.284Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Horsham"}},"employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Manufacturing","skills":"Electrical Fitter, Mechanical Fitter, Maintenance, Planned Preventative Maintenance, Reactive Breakdowns, Cogeneration Plants, Green waste/water treatment process plant, Similar responsibility","baseSalary":{"@type":"MonetaryAmount","currency":"GBP","value":{"@type":"QuantitativeValue","minValue":40876.43,"maxValue":40876.43,"unitText":"YEAR"}}}]}