JobotNewFacilities Maintenance Technician JobotFacilities Maintenance TechnicianLos Angeles, CA$28–$38 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. For over 70 years, we have been a powerhouse in protein manufacturing — known not just for our longevity but for leading the charge in innovation, quality, and operational precision.
JobotNewMaintenance Technician JobotMaintenance TechnicianParamount, CA$35–$40 / hourLocated in the greater Los Angeles area of Southern California, this company operates a modern, well-equipped manufacturing facility where skilled trades professionals work alongside engineers and production teams to keep operations running at the highest level. With decades of operational history and a reputation built on engineering excellence, our client produces a broad range of forged products including seamless rolled rings, shaped forgings, forged bars, hubs, shafts, and disks.
United AirlinesNewFacilities Maintenance Technician - Building Engineer ($10,000 Sign On Bonus) United AirlinesFacilities Maintenance Technician - Building Engineer ($10,000 Sign On Bonus)Los Angeles, CAOur Technical Operations team is full of aircraft maintenance technicians, engineers, planners, ground equipment and facilities professionals, and supply chain teams that help make sure they’re well taken care of and ready to get our customers to their desired destinations. Key Responsibilities: Requires a thorough knowledge of general building maintenance with emphasis on electrical solving, including AC & DC circuits, high voltage (480), high amperage and some 400 cycle equipment.
Summit School ServicesNewMaintenance Technician II Summit School ServicesMaintenance Technician IISanta Ana, CAYou’ll work across yellow-bus systems—preventive maintenance, air and hydraulic braking, steering/suspension, electrical/charging, HVAC, drivetrains/transmissions, and DVIR/state inspection readiness—balancing quality repairs with uptime so routes leave on time. • Diagnose and repair automotive and diesel systems — including brakes, steering, suspension, drivetrains, electrical, cooling, and fuel systems — according to skill level.
Summit School ServicesNewMaintenance Technician I Summit School ServicesMaintenance Technician IRosemead, CAYou’ll work across yellow-bus systems—preventive maintenance, DOT/state inspections and DVIR readiness, air/hydraulic braking, steering/suspension, electrical/charging, HVAC, drivetrains/transmissions, and engine performance—while modeling craftsmanship, safety, and uptime. As a Fleet Technician I supporting our school bus fleet, you’ll handle advanced diagnostics, inspections, and repairs on Summits Fleet of vehicles so routes leave safe and on time.
JobotNewSenior Maintenance Technician JobotSenior Maintenance TechnicianSanta Ana, CA$35–$42 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
JobotNewMaintenance Mechanic (Mold Injection) JobotMaintenance Mechanic (Mold Injection)Lakewood, CA$30–$40 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
JobotNewElectro Maintenance Technician JobotElectro Maintenance TechnicianFullerton, CA$35–$40 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Experience with equipment packaging equipment (labelers, rotary and in-line filler, in-line cappers, jet printers, cartoner's, bundlers, sleevers, heat tunnels and case sealers).
FedExNewSr. Vehicle Maintenance Technician/NonDOT FedExSr. Vehicle Maintenance Technician/NonDOTInglewood, CA$33–$43.41 / hourAbility to read and speak the English language sufficiently to understand traffic signs, communicate with traffic safety officials and to respond to official inquiries and directions in accordance with FMCSA enforcement guidance. Actual pay is determined by several job-related factors permitted by law and relevant to the position, including, but not limited to, experience relative to the job, tenure, market level, pay at the location for this job, performance, schedule, and work assignment.
WSH Management, Inc.NewMaintenance Technician WSH Management, Inc.Maintenance TechnicianLos Angeles, CA$24–$27 / hourDaily duties include completing work orders involving electrical, plumbing, basic HVAC, appliance repair, and carpentry; preparing units for new residents; performing janitorial tasks; and maintaining common areas and the leasing office. The Maintenance Technician plays a vital role in maintaining the condition and appearance of our 122-unit Metro Chinatown Senior Lofts in Los Angeles, CA, ensuring that all interior and exterior areas remain in excellent shape.
JobotNewMaintenance Mechanic JobotMaintenance MechanicSanta Ana, CA$30–$38 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The successful candidate will be responsible for maintaining and repairing machinery and equipment, ensuring that all machinery and equipment is functioning at optimal levels to meet production demands.
JobotNewMaintenance Technician - Injection Molding JobotMaintenance Technician - Injection MoldingCulver City, CA$30–$40 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
Pape Material Handling IncNewPeriodic Maintenance Technician / Mechanic Pape Material Handling IncPeriodic Maintenance Technician / MechanicCity of Industry, CA$20–$33 / hourAs our PM Technician, you will work at customer locations and perform periodic maintenance on all makes and models of forklifts, as well as performing minor equipment repairs such as lights, belts, engine tune-ups, and hoses. Every day, picture yourself traveling the area in a fully loaded Pape’ service vehicle, performing top-notch work on equipment, interacting with customers, and knowing that they can count on you to get the job done right.
JobotNewMaintenance Mechanic Lead JobotMaintenance Mechanic LeadLos Angeles, CA$33–$41 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This role will focus heavily on electrical troubleshooting, leading preventive maintenance (PM) programs, and mentoring junior technicians to ensure safe, efficient, and reliable plant operations.
JobotNewMaintenance Mechanic (bottling industry) JobotMaintenance Mechanic (bottling industry)Torrance, CA$35–$37 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Inspect, test, diagnose, repair, and maintains production equipment, machinery, or instruments to ensure that it functions reliably and complies with process specifications.
UniFirstNewMaintenance Technician II - UniFirst UniFirstMaintenance Technician II - UniFirstCarson, CAThe fabric of UniFirst is woven from its very unique family culture where our Team Partners enjoy a small company feel while taking advantage of the resources and stability that come with being a 1.5-billion-dollar organization. We were included in the top 10 of Selling Power magazine’s “Best Companies to Sell For” list and recognized on Forbes magazine’s “Platinum 400 – Best Big Companies” list.
UniFirstNewMaintenance Technician UniFirstMaintenance TechnicianGardena, CAThe fabric of UniFirst is woven from its very unique family culture where our Team Partners enjoy a small company feel while taking advantage of the resources and stability that come with being a 1.5-billion-dollar organization. We were included in the top 10 of Selling Power magazine’s “Best Companies to Sell For” list and recognized on Forbes magazine’s “Platinum 400 – Best Big Companies” list.
JobotNewMaintenance Supervisor - Food Manufacturing JobotMaintenance Supervisor - Food ManufacturingLos Angeles, CA$85,000–$110,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The ideal candidate is a strong leader who understands how to maintain complex systems—including automation, utilities, and food processing equipment—while also coaching a team and driving continuous improvement.
JobotNewMaintenance Mechanic (1st shift) JobotMaintenance Mechanic (1st shift)Los Angeles, CA$35–$45 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
JobotNewMaintenance Mechanic II (Mechanical & Welding) JobotMaintenance Mechanic II (Mechanical & Welding)Huntington Beach, CA$38–$42 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
JobotNewMaintenance Tech JobotMaintenance TechBellflower, CA$35–$48 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. 4. Repair machines, equipment, or structures, using tools such as hammers, hoists, saws, drills, wrenches, or equipment such as precision measuring instruments or electrical or electronic testing devices.
JobotNewMaintenance Mechanic III JobotMaintenance Mechanic IIILos Angeles, CA$28–$40 / hourKey Responsibilities: Repair and maintain a wide range of machinery and systems, including: Palletizers, conveyors, row pushers, bottle rinsers, mixers, blenders, twisters, fillers, cappers, cap sorters, labelers, sealers, packers, elevators, pallet wrappers, case wrappers, seamers, Nitrogen systems, laser coders, video jet coders, and metal detectors. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
JobotNewIndustrial Maintenance Mechanic JobotIndustrial Maintenance MechanicLos Angeles, CA$28–$35 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
JobotNewElectro Maintenance Mechanic JobotElectro Maintenance MechanicFullerton, CA$30–$38 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.
JobotNewElectrical Technician JobotElectrical TechnicianLos Angeles, CA$44–$48 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The company continues to invest heavily in equipment upgrades, automation, and preventive maintenance, making it an ideal fit for skilled professionals who want to be challenged and valued.
JobotNewMaintenance Manager JobotMaintenance ManagerVernon, CA$120,000–$145,000 / yearThe ideal candidate brings deep familiarity with grinders, blenders, conveyors, packaging equipment, and sanitation‑driven maintenance practices and understands the unique demands of maintaining equipment used in raw meat and ground beef production. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
JobotNewMaintenance Mechanic (Bottling / Filling Production Lines) JobotMaintenance Mechanic (Bottling / Filling Production Lines)Lynwood, CA$33–$40 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Experience with equipment packaging equipment (labelers, rotary and in-line filler, in-line cappers, jet printers, cartoner's, bundlers, sleevers, heat tunnels and case sealers).
JobotNewMaintenance Mechanic (High Speed Bottling) JobotMaintenance Mechanic (High Speed Bottling)Fullerton, CA$30–$40 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Experience with equipment packaging equipment (labelers, rotary and in-line filler, in-line cappers, jet printers, cartoner's, bundlers, sleevers, heat tunnels and case sealers).
Davis Wire CorporationMaintenance Mechanic Davis Wire CorporationMaintenance MechanicIrwindale, CAAll types of machine tools, hand tools, instruments, rigs and fixtures common to maintenance trade, including electrical tools, gas and electrical welding equipment, and plumber and pip-fitter equipment. As the largest wire manufacturer in the western United States, our impressive range of products are used in a wide variety of fields, including agriculture, construction, transportation, communications and industrial applications.
JobotNewChiller Technician JobotChiller TechnicianTorrance, CA$55–$75 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The successful candidate will be responsible for the maintenance, repair, and operation of a variety of refrigeration and air conditioning systems in commercial settings.
JobotNewCommercial Air Purification Technician JobotCommercial Air Purification TechnicianSanta Ana, CA$20–$30 / hourInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Diagnostic Analysis: Conduct diagnostic analysis of equipment malfunctions, identify root causes, and implement effective solutions in a timely manner, particularly focusing on Engineered Kitchen Ventilators and pollution control systems.
DACM Project Management, IncEnergy Management Systems Senior Technician DACM Project Management, IncEnergy Management Systems Senior TechnicianLos Angeles, CA$67,530–$110,357 / yearThe EMS Senior Technician will work with the LAUSD Technical Quality Support Team (TQST) and use the EMS to encourage preventative maintenance, identify potential energy conservation measures, and suggest facility improvements . 1. Experience working with multiple controls manufacturers including Automated Logic, Carrier, Delta, Distech, Schneider Electric, or Trane.
Professional Placement ServicesMaintenance Mechanic Professional Placement ServicesMaintenance MechanicLa Puente, CACurrently seeking Maintenance Mechanics for a family owned aluminum foundry in the East Los Angeles area. Mechanically inclined will allow growth in the maintenance dept.
AxelonNewManufacturing Technician II AxelonManufacturing Technician IILos Angeles, CA$30–$35 / hourPHYSICAL DEMANDS: While performing the duties of the MRT 2, the employee is regularly required to stand; sit; walk; use hands and fingers to handle or feel; reach with hands and arms; stoop, kneel, crouch, or crawl; and talk or hear. Join client as a Machine Repair Technician Level 2, playing a vital role in maintaining, diagnosing, and repairing complex Passenger Boarding Bridge (PBB) systems and related mechanical and electrical equipment.
Hydration RoomNewCompounding Technician Hydration RoomCompounding TechnicianNewport Beach, CA$30–$33 / hourThis role supports the daily operations of Hydration Room’s sterile compounding facility through compounding preparation, quality assurance procedures, inventory management, equipment maintenance, and laboratory operations. An ability to competently perform all the essential functions of the position (the combination of all essential duties and all essential skills and abilities listed above), with or without reasonable accommodation, is a basic requirement of all positions at the Hydration Room.
Kellermeyer Bergensons ServicesNewCleanroom Technician Kellermeyer Bergensons ServicesCleanroom TechnicianLos Angeles, CA$17.87–$24.95We help industry leaders across a wide range of key verticals—including retail, industrial and logistics, healthcare, education, manufacturing, and more—maintain clean, efficient, and welcoming spaces that support their operations. Ability to read and interpret documents such as safety rules, operating and maintenance instructions, procedure manuals, and safe handling for chemicals sheets/documents (generally in English; may have in Spanish where state required) .
Servicon Systems, Inc.NewFloor Technician - 2nd shift - Full-Time Servicon Systems, Inc.Floor Technician - 2nd shift - Full-TimeWoodland Hills, CAWe are women-owned and operated, with over 50 years of expertise as a leading environmental solutions provider, focused on infection prevention for complex facilities. As a Floorcare Technician, you’ll be responsible for maintaining and restoring floor surfaces throughout a high-security aerospace site.
Gulfstream Aerospace CorporationNewInterior Installation Technician 4 (Weekend Days) Gulfstream Aerospace CorporationInterior Installation Technician 4 (Weekend Days)Long Beach, CA$34.04–$42.55 / hourAdvanced knowledge of aircraft installation and/or fabrication processes applicable to the specific position, such as removal and installation of galleys, closets, lavatories, side ledges, bulkheads, doors, panels; working with composite panels made from Nomex honeycomb, fiberglass, Lexan, acrylic materials, etc. Position Purpose:The Interior Installation Technician Senior works under limited supervision to remove, install, and/or fabricate aircraft interiors, which may include items such as trim, carpet, sound proofing, light structure, cabinetry, panels and other accessories.
California Institute of TechnologyNewMechanical Technician California Institute of TechnologyMechanical TechnicianPasadena, CAMake Good Decisions: Apply logic and practical thinking to decision making; gather necessary input and data from multiple sources to inform decisions and make decisions based on one's best thinking given time available; draw correct and reasonable conclusions based on data and information; make appropriate decisions in a timely manner regardless of pressure or uncertainty; make decisions quickly when called to do so; consider of decisions. Clearly Communicate: Clearly and succinctly convey information and ideas to individuals and groups; shape communication to the needs of the audience; convey ideas and opinions clearly to others; share relevant information and expectations openly, honestly, and in a timely fashion; listen attentively to others.
Servicon Systems, Inc.NewEVS Cleaning Technician I - 2nd shift Servicon Systems, Inc.EVS Cleaning Technician I - 2nd shiftLos Angeles, CAVacuum all rugs and carpeted areas, sweep or dust-mop hard floor surfaces, and damp-mop or clean spills as needed in offices, lobbies, corridors, stairwells, and public areas. We are women-owned and operated, with over 50 years of expertise as a leading environmental solutions provider, focused on infection prevention for complex facilities.
Sunbelt RentalsTechnician - Level 1 Sunbelt RentalsTechnician - Level 1Long Beach, CA$33.80–$38.76 / hourA criminal history may have a direct, adverse, and negative relationship with your employment potentially resulting in the withdrawal of a conditional offer of employment for roles that involve direct contact with the public, handling sensitive customer and financial information, or operating vehicles and/or heavy machinery. Technician, Diesel Technician, Diesel Mechanic, Service Technician, Heavy Equipment Mechanic, Hydraulic Technician, Hydraulic Mechanic, ASE Certified Mechanic, IFPS Certified Technician.
Sunbelt RentalsTechnician - Level 3 Sunbelt RentalsTechnician - Level 3Signal Hill, CA$24.05–$33.06 / hourA criminal history may have a direct, adverse, and negative relationship with your employment potentially resulting in the withdrawal of a conditional offer of employment for roles that involve direct contact with the public, handling sensitive customer and financial information, or operating vehicles and/or heavy machinery. * 5 +years of Technician experience with similar diesel equipment and/or heavy equipment or specialty lines equipment (large-scale generators, pumps, HVAC or Oil & Gas equipment) strongly preferred.
Roadsafe Traffic SystemsNewRailroad TC Technician Roadsafe Traffic SystemsRailroad TC TechnicianLos Angeles, CA$20–$22 / hourTraffic & Work Zone OperationsSet up, maintain, and remove temporary work zones utilizing warning signs, traffic cones, barrels, delineators, barricades, and other traffic control devices in accordance with regulatory requirements and approved traffic control plans. This role ensures the protection of railroad personnel, contractors, and the public by properly implementing work zone traffic control, lane closures, and rail-adjacent safety measures in compliance with federal, state, and local regulations.
American Equipment HR LLCNewCrane Service Technician- Experienced American Equipment HR LLCCrane Service Technician- ExperiencedANAHEIM, CA$36–$58 / hourYou will be responsible for performing complex inspections, diagnostics, repairs, and installations on overhead cranes and hoists, including systems with advanced auxiliary components. Technicians at all levels perform field service, repairs, and inspections on overhead cranes, hoists, and related lifting equipment.
CoolSysSkilled Rack Systems HVAC/R Service Technician - Commercial & Industrial CoolSysSkilled Rack Systems HVAC/R Service Technician - Commercial & IndustrialLos Angeles, CA$45–$60Provides service to the customer base by repairing and overhauling equipment, such as compressors, water pumps, air handlers, and electrical and mechanical control devices in a safe, efficient, and timely manner that exceeds customers’ expectations. Provides general repair work on refrigeration, heating, and ventilation equipment, such as air conditioning units, evaporative condensers, ice machine equipment, water pumps, gas furnaces, compressors, and electric motors in a safe and timely manner.
CoolSysSenior Refrigeration Service Technician - Commercial & Industrial CoolSysSenior Refrigeration Service Technician - Commercial & IndustrialFullerton, CA$24–$40Provides service to the customer base by repairing and overhauling equipment, such as compressors, water pumps, air handlers, and electrical and mechanical control devices in a safe, efficient, and timely manner that exceeds customers’ expectations. Provides general repair work on refrigeration, heating, and ventilation equipment, such as air conditioning units, evaporative condensers, ice machine equipment, water pumps, gas furnaces, compressors, and electric motors in a safe and timely manner.
American Equipment HR LLCNewCrane Service Technician- Level 2 American Equipment HR LLCCrane Service Technician- Level 2ANAHEIM, CA$36–$48 / hourYou will perform inspections, preventative maintenance, repairs, and installations on overhead cranes and hoists, including advanced troubleshooting and customer communication. As one of the fastest growing companies in our industry, new opportunities are regularly available that enable our team members to develop, grow, and pursue their career passions.