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  • Columbia University
    Postdoctoral Research Scientist
    Postdoctoral Research Scientist
    2 days ago
    $72116 yearly
    Full-time
    Manhattan, New York

    The Boyce Group of the Chemical Engineering Department at Columbia University is seeking to fill a postdoc opening as a part of a project that aims to study fluidized beds and other granular flows using a combination of experiments and simulations. Insights from this project will be utilized to develop controlled and optimized, environmentally friendly mining and energy technologies. This open position will be advised by Prof. Chris Boyce. Qualifications To be considered for this position, candidates should have received a PhD in Chemical Engineering, Physics, Mechanical Engineering, or a related field by December 2024. Technical skillsets in the areas of granular flows, multiphase flows, experimental fluid mechanics, and computational fluid dynamics are of value for this project. Additionally, candidates should enjoy working in a team environment, possess excellent written and oral communication skills, and be prepared to hone leadership skills through mentoring younger students, assisting with reports, and helping to coordinate project activities. Equal Employment Opportunity Statement Columbia University is an Equal Opportunity Employer / Disability / Veteran

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  • Avalonair
    Refrigeration technician
    Refrigeration technician
    26 days ago
    Full-time
    Yonkers

    MUST HAVE CLEAN RECORD..WILL BE FINGERPRINTED MUST HAVE EPA CERTIFICATION -FIRE TORCH/GUARD F60/G60--OSHA CERTIFICATE--CLEAN DRIVER'S LICENSE If you dont have these qualifications, please do not waste your time applying. I am looking for intermediate to professional hvac/refrigeration technicians to handle refrigeration equipment for the NYC City Schools In Brooklyn!!! We are seeking a skilled and reliable Refrigeration Technician to join our team. The ideal candidate will be responsible for installing, maintaining, and repairing refrigeration systems and equipment. This role requires technical expertise, problem-solving skills, and the ability to work independently or as part of a team to ensure systems operate safely and efficiently. Key Responsibilities: Install, troubleshoot, and repair refrigeration systems, including walk-in coolers, freezers, chillers, and HVAC equipment. Perform routine maintenance and inspections to ensure equipment operates at peak performance. Diagnose issues and recommend effective solutions for refrigeration malfunctions. Replace or repair parts such as compressors, motors, thermostats, fans, and controls. Test systems for leaks, performance, and compliance with safety standards. Handle refrigerants in accordance with environmental and safety regulations. Maintain accurate records of work performed, parts used, and service reports. Respond promptly to emergency service calls and minimize downtime. Adhere to all safety protocols, company policies, and industry standards. Qualifications: Proven experience as a Hvac/Refrigeration Technician. Strong knowledge of refrigeration systems, electrical circuits, and mechanical components. EPA certification or equivalent for handling refrigerants (if applicable). Ability to read and interpret technical manuals, blueprints, and schematics. Skilled in using hand tools, power tools, and diagnostic equipment. Strong problem-solving and time-management skills. High school diploma or equivalent; technical training or certification is preferred. Valid driver’s license (if required for service calls).

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