Watch Floor Operator Officer Adams Communication & Engineering Technology Inc. Aerospace DivisionWatch Floor Operator OfficerChantilly, VA$120,000–$130,000 / yearFull timeThe successful candidate will possess strong operational judgment, exceptional communication skills, and extensive experience supporting intelligence, continuity of operations (COOP), emergency management, or national security missions in a high-tempo environment. This position serves as a key member of a 24/7 Mission Operations Center or (MOC) providing situational awareness, incident response coordination, continuity operations support, and executive-level reporting to ensure mission readiness during routine operations and crisis events.
Nuclear Reactor Operator Constellation EnergyNuclear Reactor OperatorBenedict, MD$69.80Upon the successful completion of Initial License Training (including attainment of Nuclear Regulatory Commission (NRC) Reactor Operator (RO) License), operate the Nuclear Power Station in accordance with the Licensed Reactor Operators responsibilities as defined in the station operating procedures and in accordance with Operations Department and station policies and practices. 12 months experience performing plant operational duties as a qualified non-licensed operator at a comparable nuclear facility or 18 months at a noncomparable nuclear facility (qualified for all power block and safety system operational duties).
NewControl Room Operator Constellation EnergyControl Room OperatorFort Washington, MD$99,000–$110,000The Combined Heat & Power (CHP) Facility consists of three Solar Mercury 50 combustion turbines, three Rentech Heat Recovery Steam Generators, one Cleaver-Brooks auxiliary boiler, and associated auxiliary equipment (compressors, pumps, etc.). Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.
NewOwner Operator Truck Driver J.B. Hunt TransportOwner Operator Truck DriverWashington, DCHunt Highway Services and gain access to one of the largest freight bases in the country, providing you with the compensation you want and the miles you need to grow your business. Hunt can take advantage of a variety of cost-saving programs to help maximize profits.
NewBindery Cutter Operator - 2ND SHIFT IRONMARKBindery Cutter Operator - 2ND SHIFTSavage, MDThe company’s expertise includes high-quality commercial print, large format, creative/design services, data-driven digital marketing, predictive analytics-driven campaigns, branded merchandise, asset management portals, and SOC 2 Type II compliance. Working with the Production Manager, the Vice President of Operations, and with cross-functional Production departments, the Cutter Operator contributes to company success by efficiently delivering consistent, high-quality finished print projects.
NewForklift Operator Forward AirForklift OperatorSterling, VA$21.43Equipment: Ability to safely operate material handling equipment (MHE) such as pallet jacks, dollies, hand trucks, order pickers, pallet riders, conveyors, dock plates, dock levelers, sit-down/stand-up forklifts and reach trucks (with company-assisted certification/training), and/or other specialized MHE as required by the site. Environment: Ability to work safely around moving equipment, vehicles, and freight in a non-climate-controlled environment, including frequent exposure to temperature extremes (both hot and cold), occasional outdoor work and/or exposure to precipitation (rain, sleet, snow, etc.), regular exposure to moving equipment, vehicle traffic, exhaust, dust, and moderate to loud noise.
NewForklift Operator XPOForklift OperatorHyattsville, MD$24.37–$29.93 / hourWhat you’ll do on a typical day: Efficiently sort, handle, load and unload palletized and non-palletized freight. We want to leverage your skills and years of experience to drive positive results while ensuring a bright future for yourself and XPO.
NewUtility Operator 1 AmrizeUtility Operator 1Hyattsville, MDAmrize, a leading supplier of quality, construction building materials in the United States, has immediate openings for a Floating Utility Operator to support operations at several asphalt plant locations throughout Prince Georges County and Anne Arundel County. The Floating Utility Operator is responsible for supporting daily operations across multiple plant locations through general labor, equipment operation, and material handling duties.
NewUtility Operator AmrizeUtility OperatorBrandywine, MDAmrize, a leading supplier of quality, construction building materials in the United States, has immediate openings for a Utility Operator to support our plant operations in Accokeek, Maryland. Employees that are required to wear respirators must be clean shaven where the respirator seal meets the face in order to pass the qualitative and quantitative fit tests.
Warehouse Operator CambriaWarehouse OperatorWashington DC, District of ColumbiaThis position is responsible for staging and preparing slabs for shipping, loading and unloading trucks, and organizing inventory and maintaining the sales distribution center in a clean and organized manner. Under the banner of CambriaCares , our philanthropic endeavors show our commitment to our people and our community to uplift kids, support education, and contribute to a sustainable future.
Transfer Machine Operator Amrize LtdTransfer Machine OperatorClinton, MDWHAT WERE LOOKING FOR Education: High school diploma or equivalent Required Work Experience: Minimum 2 years of hands-on experience operating asphalt transfer machines on commercial or highway projects Travel Requirements: Daily travel required, Must have reliable transportation Strong understanding of hot mix asphalt handling, material flow, and distribution techniques Skilled in setting up, adjusting, and operating transfer equipment for efficient and precise asphalt placement Ability to read and follow project plans, paving layouts, and job specifications accurately Knowledge of preventive maintenance, minor troubleshooting, and equipment care Ability to coordinate effectively with truck drivers, paver operators, and the paving crew to maintain smooth production Commitment to strict adherence to job site safety protocols, traffic control, and hot mix handling procedures Reliable, punctual, and dedicated to producing high-quality paving results while supporting the team Additional Requirements: Successful candidates must adhere to all safety protocols and proper use of Amrize approved Personal Protection Equipment ("PPE"), including but not limited to respirators. WHAT YOULL ACCOMPLISH Operate asphalt transfer machines to move and distribute hot mix asphalt from trucks to pavers efficiently and safely Monitor and control material flow to ensure consistent supply to the paving operation Adjust machine settings and conveyor speed to maintain proper asphalt placement and minimize material loss Coordinate with truck drivers, paver operators, and crew members to maintain smooth workflow Perform daily inspections, routine maintenance, and minor troubleshooting on transfer equipment Identify and report any mechanical issues or operational concerns to supervisors promptly Follow project plans, job specifications, and safety protocols, including traffic control and hot mix handling procedures Maintain clean, organized, and safe work areas, ensuring proper handling of asphalt and equipment Demonstrate a commitment to communicating, improving and adhering to health, safety and environmental policies in all work environments and areas.
NewDish Machine Operator Firebirds Wood Fired GrillDish Machine OperatorGaithersburg, MarylandExtensive training and development— we focus on building your knowledge during training and it doesn't stop there--continued education is a focus to make sure our team members are experts in their positions. We ensure that our team members receive extensive training and development, are continuously set up for success, and feel welcomed in our Firebirds family!
Bindery Machine Operator White House USABindery Machine OperatorDCSchedule A (Disability Appointment): Documentation of eligibility for employment under Schedule A can be obtained from a licensed medical professional (e.g., a physician or other medical professional certified by a state, the District of Columbia, or a U.S. territory to practice medicine); a licensed vocational rehabilitation specialist (i.e., state or private); or any Federal agency, state agency, or agency of the District of Columbia or a U.S. territory that issues or provides disability benefits. VA Letter and SF-15: If you are claiming Veterans Preference based on a Compensable Disability, Widow or Spouse Entitlement, or as a Purple Heart recipient, you must submit your DD-214 or other proof of entitlement as described above; and SF-15, and the required proof of disability, i.e., Department of Veterans Affairs letter dated 1991 or later.
Milling Machine Operator Amrize LtdMilling Machine OperatorClinton, MDThe asphalt milling machine operator is responsible for precisely removing existing pavement to the required depth and grade, ensuring a smooth, even surface in preparation for repaving. Employees that are required to wear respirators must be clean shaven where the respirator seal meets the face in order to pass the qualitative and quantitative fit tests.
Machine Operator PM 1 Shift Sparks GroupMachine Operator PM 1 ShiftChantilly, VAApplicants selected will be subject to a 7-year background check, drug screen and credit screen to meet position eligibility requirements. Download the Sparks Group mobile app from Apple App Store or Google Play .
Machine Operator PM 2 Shift Sparks GroupMachine Operator PM 2 ShiftChantilly, VAApplicants selected will be subject to a 7-year background check, drug screen and credit screen to meet position eligibility requirements. Download the Sparks Group mobile app from Apple App Store or Google Play .
Machine Operator Sparks GroupMachine OperatorChantilly, Virginia$17.50–$20Qualifications/Background Profile: Applicants selected will be subject to a 7-year background check, drug screen and credit screen to meet position eligibility requirements. Sparks Group has partnered with a well-known company in Chantilly, VA that is seeking Machine Operators to join their team.
Chemical Operator W. R. Grace & CoChemical OperatorBaltimore, MDThis role will be responsible for handling, storing, and transporting chemical materials, operating and monitoring both continuous and batch processes, troubleshooting operational issues, and performing routine minor maintenance on process equipment and instrumentation. We provide innovative products, technologies and services which our customers use to manufacture everyday products like renewable fuels, pharmaceuticals, toothpaste, cosmetics, food packaging, beer, edible oils and more.
NewMilling Machine Operator Cornerstone RecruitingMilling Machine OperatorRockville, MD$25–$30 / hourThe Milling Machine Operator is responsible for operating milling machines on heavy highway and roadway paving projects. Coordinate with ground crew, truck drivers, and paving crews to ensure efficient operations.
Mold Machine Operator (Evenings) ( NY ) AHU TechnologiesMold Machine Operator (Evenings) ( NY )Washington, District of ColumbiaEssential Functions • Operates one or more injection molding machines • Removes parts by hand or checks chutes when parts are automatically ejected • Keeps hoppers filled with material • Performs visual inspection on parts to determine if quality is within specs • Routinely clean, care for machine, gages and other equipment (5-S) • Fill out production paperwork • Meets or exceeds target production rate • Follow all established safety regulations, procedures, and complies to all Quality System requirements • Perform other duties as assigned Additional Responsibilities • Support all Lean initiatives. POSITION TITLE: Mold Machine Operator (Evenings) LOCATION: Onsite at in Victor, NY HOURLY PAY RANGE: $20.00/hour - $26.00/hour + $2 Shift Differential SHIFT HOURS: (Evenings 1:30 pm to 10:00 pm) LOCATION: Onsite at in Victor, NY JOB SUMMARY: The Mold Machine Operator is responsible for using a variety of tools, fixtures, equipment, and work instructions to perform a series of operations to package medical devices.
NewLaundry Machine Operator United States Air ForceLaundry Machine OperatorWashington, DC$18.63–$21.74 / hourTime spent in the UK as an employee, or dependent of an employee, of a US agency serving and supporting the US Visiting Forces (i.e., active duty military, federal civilian, AAFES, Red Cross, one of the contract universities, a military banking facility or federal credit union, or US government contractors) is not counted toward being ordinary resident. The area of consideration for this vacancy announcement is citizens, permanent residents, and legal residents of the United States (US) who reside within the local commuting area (60 mile radius) of RAF Alconbury, United Kingdom (UK), or will do so within the next 30 days.
Machine Operator Usam DcMachine OperatorManassas, VirginiaPositions are needed for operation of Machine Centers such as CNC (router), edge bander, wide belt sander, dowel insertion machine, beam saw, table saw, case clamp and other woodworking power equipment. While performing the duties of this job, the employee works on or near the shop floor where there may be moving mechanical parts with occasional exposure to the risk of electrical shock, outdoor weather conditions, fumes or airborne particles, and toxic or caustic chemicals.
Dish Machine Operator IHOPDish Machine OperatorBurke, VA$10–$15IHOP Dish Machine Operators (DMO) will be responsible for cleaning and maintaining dishware/utensils for the continued smooth operation of the restaurant. IHOP DMOs are also required to perform duties necessary for restaurant operations as assigned by acting supervisor, following governmental and company policies.
Machine Operator (Night Shift) CRH PlcMachine Operator (Night Shift)Crofton, MD$20–$22 / hourOur portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard hardscape, Echelon Masonry, RDI railing, Catalyst Fence Solutions, Sakrete packaged concrete, Amerimix mortar, Pebble Technology International pool finishes, and Techniseal sands and sealant technologies. Were a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products.
Machine Operator CRH PlcMachine OperatorCrofton, MD$20–$22 / hourOur portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard hardscape, Echelon Masonry, RDI railing, Catalyst Fence Solutions, Sakrete packaged concrete, Amerimix mortar, Pebble Technology International pool finishes, and Techniseal sands and sealant technologies. Were a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products.
Collator Machine Operator - Valmeyer, IL AHU TechnologiesCollator Machine Operator - Valmeyer, ILWashington, District of ColumbiaWe are currently working on Various projects such as media entertainment, ERP Solutions, data warehousing, Web Applications, Telecommunications and medical to our clients all over the world. AHU Technologies INC. is an IT consulting and permanent staffing firm that meets and exceeds the evolving IT service needs of leading corporations within the United States.
Transfer Machine Operator Longhorn EnergyTransfer Machine OperatorClinton, MarylandFollow traffic control plans, wear personal protective equipment (PPE), and operate equipment with an awareness of ground crew and surrounding hazards. Control the material transfer vehicle to ensure a continuous supply of asphalt from trucks to the paver without interrupting paving operations.
Lead Machine Operator Amcor PlcLead Machine OperatorHanover, MD$24–$27 / hourOperate stretch blow molding machines and lift equipment, inspect and pack rigid-plastic PET containers, and perform scheduled charting and inspections on machines and associated equipment. Operate stretch blow molding machines, pull seepage, apply SPC methodologies for initiating machine adjustments, change materials, assist in changeovers and identify start and stop of out-of-spec production (held ware).
Lead Machine Operator AmcorLead Machine OperatorHanover, MD$24–$27 / hourOur global product innovation and sustainability expertise enables us to solve packaging challenges around the world every day, producing a range of flexible packaging, rigid packaging, cartons and closures that are more sustainable, functional and appealing for our customers and their consumers. + Operate stretch blow molding machines and lift equipment, inspect and pack rigid-plastic PET containers, and perform scheduled charting and inspections on machines and associated equipment.
Form Fill Seal Machine Operator, 12-HR Rotating Night Shift ITWForm Fill Seal Machine Operator, 12-HR Rotating Night ShiftWashingtonFounded in 1912, Illinois Tool Works Inc. (NYSE: ITW) is a diversified, Fortune 200 manufacturing company that delivers specialized expertise, innovative thinking and value-added products to meet critical customer needs in a variety of industries. ITW Medical is comprised of three highly-respected medical product brands - Coeur, Filtertek & Precise Biomedical – supplying medical devices, components and service to global medical device brands.
Machine Operator-Saw (Fri-Sun weekend shift) Bazooka FarmstarMachine Operator-Saw (Fri-Sun weekend shift)WashingtonPosition Overview The Machine Operator - Saw operates fabricating machines such as CNC machine, saws, and rollers that cut, shape and bend metal plates, sheets, tubes and structures. Essential Job Functions Must be able to perform but not limited to the following tasks: milling, drilling, saw and CNC flat plate machine operations.
Machine Operator -Cleared CACIMachine Operator -ClearedFairfax, VirginiaAt least 3-5 years of experience safely and efficiently operating complex machinery: For the right candidate, the Customer will provide on-the-job training for printing press operations to include digital, screen printing, gravure, flexographic, small offset and large sheeted presses; and methods such as letterpress, lithography, digital and ink-jet printing techniques. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Bobcat Operator Brothers Paving & Concrete LLCBobcat OperatorManassas, VAThis position operates at professional construction sites, requiring the ability to communicate verbally with others on site, in person and over the telephone, ability to read printed materials, signs and directions, Ability to lift, push, pull, carry, handle or feel objects, supplies, tools, machinery and/or controls weighing up to 50 pounds. Ability to reach with hands and arms; climb stairs and/or ladders; balance, bend, stoop, kneel, crouch, crawl, lift overhead, traverse around or otherwise position one's self around the required work area safely.
Machine Operator USAM DCMachine OperatorManassas, VAFull timePositions are needed for operation of Machine Centers such as CNC (router), edge bander, wide belt sander, dowel insertion machine, beam saw, table saw, case clamp and other woodworking power equipment. While performing the duties of this job, the employee works on or near the shop floor where there may be moving mechanical parts with occasional exposure to the risk of electrical shock, outdoor weather conditions, fumes or airborne particles, and toxic or caustic chemicals.
Machine Operator -Cleared CACI International IncMachine Operator -ClearedFairfax, VA$70,800–$148,600 / yearFor the right candidate, the Customer will provide on-the-job training for printing press operations to include digital, screen printing, gravure, flexographic, small offset and large sheeted presses; and methods such as letterpress, lithography, digital and ink-jet printing techniques. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Equipment Operator Kokosing Construction Company IncEquipment OperatorAnnapolis Junction, MD$27–$40 / hourThis compensation range is specific to the job level and takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to: education, experience, licensure, certifications, geographic location, and internal equity. Kokosing's services include heavy civil/industrial construction such as highways, bridges, underground utilities, water/wastewater facilities, and marine construction.
Sewer and Water Excavator/ Machine Operator Michael & Son Services Inc.Sewer and Water Excavator/ Machine OperatorAlexandria, VAFull timeMichael and Son Services is a family-owned and multi-state operated business based out of Alexandria, Virginia, with locations along the East Coast, we've been in business since 1976. Michael and Son Services, Inc. is the premier, provider of Electrical, Plumbing, HVAC, and Restoration services.
Manufacturing Machine Operator | Manassas, VA Pronto FulfillmentManufacturing Machine Operator | Manassas, VAManassas, VirginiaYou will work closely with Production, Quality, and Operations teams in a clean, climate-controlled manufacturing environment focused on quality, efficiency, and continuous improvement. This is an excellent opportunity to gain hands-on experience in a highly regulated and rapidly growing industry while developing valuable technical skills and advancing your career.
Heavy Equipment Operator Benefits Day 1, Stable Hours, 401K Match Waste Management IncHeavy Equipment Operator Benefits Day 1, Stable Hours, 401K MatchMDWM has the largest disposal network and collection fleet in North America, is the largest recycler of post‑consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas‑to‑electricity plants in North America. As a Heavy Equipment Operator I you'll be responsible for operating heavy equipment like bulldozers, scrapers & front-end loaders - this role is vital to the work we do, so your work will be recognized and valued for the impact it has on our operation.
Heavy Equipment Operator I Waste Management IncHeavy Equipment Operator IAlexandria, VAWM has the largest disposal network and collection fleet in North America, is the largest recycler of post-consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas-to-electricity plants in North America. As a Heavy Equipment Operator I you'll be responsible for operating heavy equipment like bulldozers, scrapers & front-end loaders - this role is vital to the work we do, so your work will be recognized and valued for the impact it has on our operation.
Equipment Operator Kokosing IndustrialEquipment OperatorAnnapolis Junction, MarylandThis compensation range is specific to the job level and takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to: education, experience, licensure, certifications, geographic location, and internal equity. Kokosing's services include heavy civil/industrial construction such as highways, bridges, underground utilities, water/wastewater facilities, and marine construction.
Boiler Plant Operator U.S. Department of Veterans AffairsBoiler Plant OperatorFort Belvoir, VA$30.26–$35.30 / hourThe Boiler Plant Operator is responsible for the maintenance, repair, and safe operation of two Keeler gas/oil combination boilers, Models 14860-3 NB4601 and 14860-1 producing steam capacity of 20,000LBS/HR each; and one Unilux gas/oil combination boiler model ZF1200HS producing steam capacity of 9,918. Uses broad experience and specialized knowledge of electrical, mechanical, pneumatic, and/or hydraulic theory and a working knowledge of electronics to diagnose, isolate, and repair malfunctions, and to achieve and maintain critical accuracies, sensitivity levels, and precise tolerances in aligning and adjusting complex instrument systems, components, and mechanisms.
Manufacturing & Production Operators Sparks GroupManufacturing & Production OperatorsChantilly, VA$17.50–$20 / hourSparks Group is proud to partner with a global manufacturing company located in northern Virginia who is a leader in identity technologies and a producer of secured payment interactions. Qualifications: Applicants selected will be subject to a 7 year background check, drug screen and credit screen to meet position eligibility requirements.
Machine Operator APG NorthMachine OperatorCrofton, MD$20–$22 / hourOur portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard® hardscape, Echelon® Masonry, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, and Techniseal® sands and sealant technologies. We're a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products.
Machine Operator CRH AmericasMachine OperatorCrofton, MD$20–$22 / hourAward-winning brands include Belgard® hardscape, Echelon® Masonry, MoistureShield® composite decking, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, Lawn & Garden mulches and landscape features, and Techniseal® sands and sealant technologies. The manufacturer’s portfolio of premier building products inspires endless possibilities while providing enduring outdoor spaces where people can connect, reflect and recharge.
Night Shift Machine Operator CRH AmericasNight Shift Machine OperatorCrofton, MD$20–$22 / hourAward-winning brands include Belgard® hardscape, Echelon® Masonry, MoistureShield® composite decking, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, Lawn & Garden mulches and landscape features, and Techniseal® sands and sealant technologies. The manufacturer’s portfolio of premier building products inspires endless possibilities while providing enduring outdoor spaces where people can connect, reflect and recharge.
Machine Operator (Night Shift) APG NorthMachine Operator (Night Shift)Crofton, MD$20–$22 / hourOur portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard® hardscape, Echelon® Masonry, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, and Techniseal® sands and sealant technologies. We're a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products.
Heavy Equipment Operator with Backhoe Experience - $33.77/hour American Water Works Co IncHeavy Equipment Operator with Backhoe Experience - $33.77/hourAlexandria, VAOperates various types of power construction equipment such as backhoe and front-end loaders, to excavate, move, grade and replace soils and miscellaneous backfill/restoration materials, and to load /unload pipe, fittings and materials. The employee occasionally works in high, precarious places and is occasionally exposed to wet and/or humid conditions, fumes or airborne particles, extreme heat and risk of electrical shock.
CB-Master Operator Prob W. R. Grace & CoCB-Master Operator ProbBaltimore, MDThis role will be responsible for handling, storing, and transporting chemical materials, operating and monitoring both continuous and batch processes, troubleshooting operational issues, and performing routine minor maintenance on process equipment and instrumentation. We provide innovative products, technologies and services which our customers use to manufacture everyday products like renewable fuels, pharmaceuticals, toothpaste, cosmetics, food packaging, beer, edible oils and more.
HVAC Utility Operator ($7,500 Sign-on-Bonus) Multiple Positions Available Metropolitan Washington Airports AuthorityHVAC Utility Operator ($7,500 Sign-on-Bonus) Multiple Positions AvailableVA$35.01–$45.50 / hourFour years of progressively responsible experience in operating, monitoring, or maintaining industrial central plant (not domestic) heating and cooling systems using high temperature-high pressure hot water generators, industrial chillers, and chilled water storage tanks in hot and chilled water production. Maintains the safe and efficient operation of industrial high-temperature and pressure hot-water boilers, chillers, and thermal ice-making machines, as well as roof-top units, heat pumps, electric or gas-fed heaters, and air handlers.