Our Facilities Division (FAC) has a great opportunity for an Off-shift (midnight or Afternoon shift) Maintenance Mechanic I position. Under general supervision of the Foreman, performs preventative maintenance, operational functions, & repairs to building systems; structures & utilities in strict accordance with established safety practices & procedures. This is a union utility building operator's position that will be required to work off-shift with working hours consisting of 3:00pm - 11:00pm or 11:00pm - 7:00am Wednesday through Sunday, days off of Monday and Tuesday. This job description documents the general nature of work but is not intended to be a comprehensive list of all activities, duties and responsibilities required of job incumbent. Consequently, job incumbent may be required to perform other duties as assigned. **Position Requirements** **Job Responsibilities** + Monitor and record temperatures and pressures of equipment and building systems. + Maintain proper chilled water, hot water, process water temperatures and system pressures. + Maintain proper compressed air system pressure. + Start and stop centrifugal chillers and associated cooling towers. + Start and stop hydronic pumps. + Start and stop air compressor and dryer systems. + Perform chemical/water analysis on chilled water, cooling tower, hot water and steam condensate. + Calibrate water quality analyzers and chemical feeds. + Troubleshoot operating equipment problems, recommend corrective action and take action as directed. + Report operational problems to area maintenance foreman beyond ability to resolve. + Perform routine maintenance on equipment and the facility and clean machinery spaces + Legibly record plant parameter readings in building area logs books. + Answer phone calls, pages and radio communications with on duty personnel and respond to requests and emergencies. + Keep area maintenance foreman informed of activities and area deficiencies. + Most likely an overnight shift 11:00pm - 7:00am position with the potential to be afternoons 3:00pm-11:00pm. Must be able to work a variety of shifts and days during the first 4 months of training. **Position Requirements** Two years of technical school training and 3+ years of experience, including computer literacy, or 5+ years professional experience in preventative maintenance systems. We expect you should possess a high degree of proficiency in the repair, calibration/adjustment diagnosis, defective component replacement, functional test performance, disassembly and overhauling of at least two major systems listed below: + HVAC systems + Building automation systems; Johnson Controls Metasys + Compressed air systems + Steam systems + Plumbing systems + Electrical systems up to and including 480 volt + Emergency generators Pumps + Must be self-reliant with excellent attendance + High school diploma or equivalent. + Ability to model Argonne’s Core Values: Impact, Safety, Respect, Integrity, and Teamwork. **Job Family** Union **Job Profile** Maintenance Mechanic I **Worker Type** Regular **Time Type** Full time _As an equal employment opportunity and affirmative action employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a diverse and inclusive workplace that fosters collaborative scientific discovery and innovation. In support of this commitment, Argonne encourages minorities, women, veterans and individuals with disabilities to apply for employment. Argonne considers all qualified applicants for employment without regard to age, ancestry, citizenship status, color, disability, gender, gender identity, gender expression, genetic information, marital status, national origin, pregnancy, race, religion, sexual orientation, veteran status or any other characteristic protected by law._ _Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation in the application phase for review by Argonne's Legal Department._ _All Argonne offers of employment are contingent upon a background check that includes an assessment of criminal conviction history conducted on an individualized and case-by-case basis. Please be advised that Argonne positions require upon hire (or may require in the future) for the individual be to obtain a government access authorization that involves additional background check requirements. Failure to obtain or maintain such government access authorization could result in the withdrawal of a job offer or future termination of employment._