NewYard Technician Herc Rentals IncYard TechnicianUnion City, CA$20–$22 / hourYard Technicians at Herc Rentals are responsible for keeping our facilities looking clean and professional by maintaining the cleanliness of our equipment and keeping everything organized and easily accessible. This role is a springboard to other opportunities at Herc Rentals including Driver, Mechanic, ProSales Associate, and Sales and Operations Coordinator roles.
Engineering Technician III Applied Materials IncEngineering Technician IIISanta Clara, CA$29–$39.60 / hourPerforms routine to moderately complex electro-mechanical technical functions and activities such as design, test, checkout, fabrication, modification, troubleshooting and assembly of electronics and electro-mechanical systems, experimental design circuitry, prototype models, specialized test equipment, tools and test fixtures. If you would like to contact us regarding accessibility of our website or need assistance completing the application process, please contact us via e-mail at Accommodations_Program@amat.com, or by calling our HR Direct Help Line at 877-612-7547, option 1, and following the prompts to speak to an HR Advisor.
NewLogistics Technician AxelonLogistics TechnicianFremont, CA$20–$25 / hourAbility to medically pass a respiratory test and physical test to wear a full-face respirator as required. Coordinate delivery and pickup of cylinders and other materials with common carriers and company locations.
IT Technician (Field) Cal Tech ServicesIT Technician (Field)San Jose, California$25–$30 / hourCompensation: $25.00 - $30.00 per hour Cal Tech Services Inc- offers the products and services companies throughout North America need to reach full potential. Whether you need an on-demand workforce or information technology services, we can help you keep your company competitive in today’s market.
Precision Assembly Technician ManTech International CorpPrecision Assembly TechnicianLivermore, CA$71,100–$117,800 / yearThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
Engineering Technician V - PCS Maintenance (NWS 00810) North Wind GroupEngineering Technician V - PCS Maintenance (NWS 00810)LIVERMORE, CAThe successful candidate will be expected to operate both systems remotely using Graphical User Interfaces (GUIs) and perform site maintenance including electrical distribution, high voltage -equipment, digital circuits analog circuits, vacuum controls, compressed air controls and/or major system configurations across multiple engineering disciplines. North Wind Services (NWS), is actively seeking individuals who can contribute to national security within the science, technology, and engineering fields as part of our supplemental labor team at vital federal research and development installations supporting the Department of Energy.
Engineering Technician II, Swing Or Night Shift (T2) Applied MaterialsEngineering Technician II, Swing Or Night Shift (T2)Santa Clara, CA$24.50–$34.10 / hourOther Requirements: This is a physically demanding position that often requires standing for extended periods of time, walking, working in tight spaces, bending, squatting, twisting, kneeling, reaching, climbing stairs and ladders, lifting, the ability to distinguish between colors, the ability to work in an environment with noise that may be difficult for some individuals with sensitivity to noise, the use of hand and power tools, and driving or operating heavy machinery including forklifts. Performs routine to moderately complex electro-mechanical technical functions and activities such as design, test, checkout, fabrication, modification, troubleshooting and assembly of electronics and electro-mechanical systems, experimental design circuitry, prototype models, specialized test equipment, tools and test fixtures.
Warranty & Repair Coordinator PivotWarranty & Repair CoordinatorFremont, CaliforniaWhether planning our Customer Experience program, developing multi-pronged marketing strategies, or designing projects for our innovative clients, we are constantly finding ways to underscore our promise to partner with our clients to make inspiring spaces that unlock their people’s greatest potential. This job has no regular supervisory responsibilities, but duties require the Warranty & Repair Coordinator to temporarily direct and coordinate actions of several different supporting positions within the project team to ensure adherence to schedule and cost allocations.
R&D Technician AOSense, Inc.R&D TechnicianFremont, CAOur products use frequency-stabilized lasers and atoms in a vacuum cell to measure accelerations, rotations, magnetic fields, and time with unparalleled accuracy and stability. If you are disabled and require special assistance or a reasonable accommodation while seeking employment with AOSense, then please contact us via email at careers@aosense.com or call (408) 735-9500 x210.
Maintenance Utility Technician Sysco CorpMaintenance Utility TechnicianFremont, CARegularly required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms and talk or hear. This is an Operations position responsible for checking oil, fluids, tire pressure and fueling all equipment.
NewDesktop Support Technician Zones, LLCDesktop Support TechnicianSan Francisco, CAOperating in more than 120 countries, leveraging a robust portfolio, and utilizing the highest certification levels from key partners, including Microsoft, Apple, Cisco, Lenovo, Adobe, and more, Zones has mastered the science of building digital infrastructures that change the way business does business ensuring whatever they need, they can Consider IT Done. Positioned to be the IT partner you need, Zones, a Minority Business Enterprise (MBE) in business for over 35 years, specializes in Digital Workplace, Cloud & Data Center, Networking, Security, and Managed/Professional/Staffing services.
NewManufacturing Engineer Intuitive Surgical IncManufacturing EngineerSunnyvale, CAThe role requires active participation in the mechanical manufacturing engineering organization alongside our software engineering counterparts in order to refine electro-mechanical components, assemblies, process documentation, tooling and test methods to improve efficacy, reliability, manufacturability and cost for surgical robotic instruments. Contribute your mechanical engineering design and analysis skills to design, develop and deploy equipment to test, measure, and deliver quality instruments and project management skills to a dynamic manufacturing engineering team creating precision instruments for minimally invasive robotic surgery.
Apprentice Technician Hendrick Automotive Group CorporateApprentice TechnicianPleasanton, California$23–$28 / hourFull timeWhile performing the duties of this job, the employee is regularly required to talk and hear; stand; walk; use hands to finger, handle, or feel; reach with hands and arms and stoop, kneel, crouch, or crawl. Summary: In a learning capacity the Apprentice Technician assists the Service Technician with identifying necessary vehicle service and performing the repair, service, and/or maintenance work.
Critical Operations Technician Stack InfrastructureCritical Operations TechnicianSan Jose, CA$48–$67.50 / hourMechanical responsibilities will include working on chilled water systems and components, HVAC systems such as roof top units, CRAC/CRAH units, humidification systems, fan wall systems, air-cooled chillers, and central plant operations. While performing the duties of this job, the employee is occasionally required to stand, walk, sit, use hands to handle, reach or feel objects, climb stairs, balance, stoop or kneel, talk, see at close range, and hear for extended periods of time.
Natural Resources Operations Technician I Rhode Island Department of Environmental ManagementNatural Resources Operations Technician IBurlingame, California$26.16–$27.70 / hourTo assist with the development and maintenance of public access facilities such as informational signs, kiosks, check stations, roads, parking areas, beaches, lawns, picnic areas, campsites, restrooms, bike paths, trails, fences, gates, water control structures, fishways, dams, and equipment storage facilities. To perform general maintenance tasks at facilities and properties owned by or under the control of the Department of Environmental Management, including but not limited to mowing lawns, raking, picking up trash, cleaning restrooms, moving furniture, brush cutting, planting shrubs, transplanting, cutting, and pruning.
NewAdvanced Solar Field Service Technician (Operations and Maintenance) Pearce ServicesAdvanced Solar Field Service Technician (Operations and Maintenance)San Francisco, CA$30–$42 / hourPearce provides technical maintenance, repair, operations, and engineering services for uninterruptible power supply (UPS) systems, backup power generators, battery energy storage systems (BESS), critical cooling systems, and other electrical and mechanical infrastructure across end markets such as renewable energy, telecom, and data centers. The Advanced Solar Field Service Technician (Operations and Maintenance) in the PEARCE Renewables Solar Operations and Maintenance Division performs tasks involving physical labor at solar energy sites near San Jose, California.
Robotics Operations Technician TSMGRobotics Operations TechnicianPalo Alto, CAWe are seeking Robotics Operations Technicians to support daily robot deployment, testing, and operational activities across a variety of robotics programs. The successful candidate will help ensure robotic systems operate safely, efficiently, and according to project requirements.
Hive Operations Technician Beewise Technologies LtdHive Operations TechnicianSan Ramon, CA$70,500–$75,000 / yearThis is primarily an operations role, task-focused and detail-driven, and is ideal for someone early in their career who enjoys following structured workflows, working with dashboards, and supporting a high-tech mission in a steady, consistent way. At Beewise, we develop and operate autonomous robotic beehives that actively protect and support bee colonies, enabling sustainable pollination and revolutionizing agri-tech.
Maintenance Operations Engineering Technician, Half Moon Bay ZiplineMaintenance Operations Engineering Technician, Half Moon BaySan Francisco, CA$35–$42 / hourOur customers include the world's largest and most prominent healthcare systems, governments, retailers, restaurants and global businesses who rely on us to save lives, reduce emissions, increase economic opportunity, and provide delivery from point A to point B as fast as possible. As a Maintenance Operations Engineering Technician in Half Moon Bay, California, you will keep prototype flight vehicles, ground infrastructure, and test equipment safe, configured, and ready for engineering development and field operations.
Lead Systems Technician Vector SecurityLead Systems TechnicianSan Francisco, CAOur Vector Security Networks (VSN) division provides national security solutions for multi-site organizations, while Managed Network Services (MNS) delivers secure connectivity, and network management services that help businesses operate reliably and securely. About Us: Vector Security is a leading provider of intelligent security and managed services solutions serving residential, commercial, and enterprise customers across North America.
Data Center Lab Technician VailexaData Center Lab TechnicianSanta Clara, CaliforniaHands-on experience racking and stacking servers, networking equipment, and other hardware, including installing new racks, in a data center or lab environment. Rack and stack servers, networking equipment, and other hardware in the lab, including installing new racks as buildout activity increases.
NewBAS/HVAC Controls Technician JobotBAS/HVAC Controls TechnicianSan Jose, CA$90,000–$125,000 / yearWe are a national building automation and energy services provider with private financial backing that provides full-scope building smart building automation to help building owners and managers improve efficiency and reduce operational costs while improving comfort for tenants. 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.
Data Center Technician L2 Milestone Technologies Inc.Data Center Technician L2Santa Clara, CAAs a Data Center Technician 2, you will be working alongside Data Center Operations Leads in supporting installs, troubleshooting, and maintaining servers, networking equipment, and cabling. High and low-level task management, working with partner teams to support IT service health and capacity.
NewSupervisor, Pharmacy Technician Operations, Specialty Pharmacy Sutter HealthSupervisor, Pharmacy Technician Operations, Specialty PharmacyOakland, CaliforniaEffectively supervises and coordinates the overall management of activities of the pharmacy technicians/Medication Management Navigators including scheduling, training, coaching and counseling, and performance evaluations, thus ensuring a smooth and efficient flow of work is maintained in the pharmacy patient assistance operation and the various satellite clinics within their assigned territory. Total compensation considers multiple factors, including, but not limited to a candidate’s experience, education, skills, licensure, certifications, departmental equity, training, and organizational needs.
NewFormulation Technician TekWissen LLCFormulation TechnicianSunnyvale, CA$20–$23As a global leader in serving the scientific community, the organization generates approximately $40 billion in annual revenue and is committed to making the world healthier, cleaner, and safer. TekWissen is a global workforce management provider headquartered in Ann Arbor, Michigan that offers strategic talent solutions to clients worldwide.
Lab Operations Manager EtchedLab Operations ManagerSan Jose, CaliforniaThe ideal candidate has a strong background in lab or infrastructure operations and the operational rigor to build and maintain the systems that keep a fast-moving hardware lab running — including accurate inventory tracking, intake and triage of engineering requests, equipment lifecycle management, and the technical depth to engage meaningfully with hardware validation workflows such as reading schematics, understanding bring-up sequences, and coordinating PCB rework activities. This is a hands-on operational role reporting to the Head of Lab Operations, responsible for everything between hardware arriving at our dock and engineers running it in a rack — board intake and serialization, request tracking and prioritization, rework coordination, physical lab infrastructure, equipment commissioning, inventory management, safety compliance, and end-to-end workflow execution.
Senior AV Support Technician Avi SystemsSenior AV Support TechnicianSan Francisco, CATroubleshooting & Issue Resolution: Serve as the escalation point for Level 1 AV Technicians, providing in-depth troubleshooting and problem-solving for complex audiovisual issues, including equipment failure, software integration problems, and networked AV systems. Advanced AV Setup & Operation: Manage and configure AV systems for large-scale events, meetings, and specialized projects, including high-end audio systems, multi-camera video conferencing setups, and integrated control systems.
Ink Technician Bloom EnergyInk TechnicianFremont, CaliforniaOur cutting-edge solutions enable unparalleled “time-to-power” capabilities, reliability, and sustainability, ensuring our customers remain ahead in a world where soaring energy demand and intensifying energy scarcity are rapidly becoming the new norm. For over two decades, we’ve been at the forefront of the global energy transition, pioneering solutions that empower critical industries to thrive in a rapidly digitizing, energy-intensive world.
NewWarranty & Repair Coordinator Pivot Interiors, Inc.Warranty & Repair CoordinatorFremont, CAPart timeWhether planning our Customer Experience program, developing multi-pronged marketing strategies, or designing projects for our innovative clients, we are constantly finding ways to underscore our promise to partner with our clients to make inspiring spaces that unlock their people’s greatest potential. This job has no regular supervisory responsibilities, but duties require the Warranty & Repair Coordinator to temporarily direct and coordinate actions of several different supporting positions within the project team to ensure adherence to schedule and cost allocations.
Senior Commissioning Operations Engineer Mainspring Energy IncSenior Commissioning Operations EngineerMenlo Park, CARemote$109,000–$128,000 / yearAt Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don't meet all posted requirements for a particular role, we'd still love to hear from you. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities.
NewTechnical Program and Lab Operations Manager Applied Materials IncTechnical Program and Lab Operations ManagerSanta Clara, CA$138,000–$190,000 / yearIf you would like to contact us regarding accessibility of our website or need assistance completing the application process, please contact us via e-mail at Accommodations_Program@amat.com, or by calling our HR Direct Help Line at 877-612-7547, option 1, and following the prompts to speak to an HR Advisor. Ensure that all hardware projects and programs assigned are completed in accordance with predetermined requirements, with specific attention to installation and qualification specifications, resource utilization and timelines for completion.
Data Center Operations Coordinator Together Computer IncData Center Operations CoordinatorSan Francisco, CA$150,000–$200,000 / yearThis role acts as the central point of coordination for hardware incidents, vendor dispatches, ticket management, asset tracking, and operational reporting to ensure maximum uptime and fast issue resolution. We're looking for a detail-oriented Data Center Operations professional to manage and track all break/fix activities across multiple data center locations.
Operations Management Program Schindler Holding LtdOperations Management ProgramSan Francisco, CAThroughout the program, participants work closely with Area, Territory, and local leadership, including a dedicated mentor, to learn how to effectively manage the maintenance and repair of elevators, escalators, and moving walks. The program is designed to build a strong pipeline of Schindler's most critical operational leadership roles, by equipping participants with the technical knowledge, business acumen, and leadership capabilities required to succeed.
Mechanical Operations Lab Lead EtchedMechanical Operations Lab LeadSan Jose, CaliforniaYou will partner directly with mechanical, thermal, and hardware validation engineers across multiple product lines to triage fabrication requests, manage material pipelines, enforce EH&S compliance, and maintain an environment where engineering can move at lightning speed without sacrificing organization or safety. Procurement Workflows: Proactively flag low-stock items and manage end-to-end procurement for lab shop consumables (endmills, blades, 3D printer filaments/resins, hardware).
Senior Staff Data Center Operations Engineer, GPU Hardware Architecture CrusoeSenior Staff Data Center Operations Engineer, GPU Hardware ArchitectureSan Francisco, CaliforniaWe're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. Your mission is twofold: act as the primary technical consultant to our Data Center Engineering team to ensure future facilities are built for next-gen silicon, and provide the Operations team with the specialized tooling, SOPs, and predictive strategies needed to maintain peak cluster health.
Media Delivery Operations Specialist The Walt Disney CompanyMedia Delivery Operations SpecialistSan Francisco, CA$73,100–$98,000 / yearThe Media Delivery Operations team provides operational and procedural support for our partner products, including system health monitoring and incident management, live and VOD streaming media orchestration, and cross-team communications. Disney Entertainment and ESPN Product & Technology is a global organization of engineers, product developers, designers, technologists, data scientists, and more – all working to build and advance the technological backbone for Disney’s media business globally.
Sr Salesforce Developer - Field Service and Customer operations Mainspring Energy IncSr Salesforce Developer - Field Service and Customer operationsMenlo Park, CARemote$123,500–$145,000 / yearThis is a hands-on development role that will work closely with Field Operations, O&M, Customer Success, Engineering, and other enterprise systems leads to improve the systems supporting service delivery and the customer experience. Develop and enhance Salesforce Field Service capabilities, including work orders, service appointments, scheduling, dispatch, service territories, skills, mobile workflows, and preventive maintenance.
Director, Technical Operations ABM IndustriesDirector, Technical OperationsSanta Clara, CA$190,000–$220,000 / yearThe Director of Technical Operations is responsible for the overall operation of facility management services across multiple laboratory, cleanroom, and office sites, ensuring the safety and well-being of employees, safeguarding company funds and property, and representing the company with respect to the client. Ensure compliance with Customer SLA parameters and Change Control activities; review and approve all system changes (set-points, thresholds, alarm-points, etc.) impacting customer operations.
Operations Program Manager - Robotics Data Acquisition OpenAI LLCOperations Program Manager - Robotics Data AcquisitionSan Francisco, CAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. Identify equipment readiness issues and coordinate with technical support to keep workstations, and test equipment calibrated, configured, maintained, and ready for rollouts and evaluations.
Gas Maintenance Technician LancesoftGas Maintenance TechnicianFremont, CA$32You will be performing daily maintenance on a variety of equipment that ensures consistent supply of chemicals and gases necessary for producing semiconductor chips used in various electronic devices. Schedule: Maintenance Technicians are scheduled on-site for 10-hour shift rotating day-to-night / night-to-day, including weekends and holidays.
Senior Technician, Robotics Scale AISenior Technician, RoboticsSan Francisco, CAThe range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position and may be inclusive of several career levels at Scale; it will be determined during the interview process based on work location and additional factors, including job-related skills, experience, qualifications, interview performance, and relevant education or training. For pay transparency purposes, the base salary range for this full-time position in the locations of San Francisco, New York, Seattle is: $134,400—$168,000 USD PLEASE NOTE: Our policy requires a 90-day waiting period before reconsidering candidates for the same role.
NewAV Operations Specialist AnthropicAV Operations SpecialistSan Francisco, CAIn a given week you might execute a preventative maintenance sweep across a floor of conference rooms, work the support queue and drive a recurring failure to root cause, and then run technical coverage for an all-hands or an executive presentation that evening. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.
Automotive Technician - Mercedes-Benz San Jose / Pay Up to $45 AutoNation IncAutomotive Technician - Mercedes-Benz San Jose / Pay Up to $45San Jose, CA$30–$50 / hourAutoNation is one of the largest automotive retailers in the United States, offering innovative products, exceptional services, and comprehensive solutions, empowering our customers to make the best decisions for their needs. With a network of dealerships nationwide strengthened by a recognized brand, we offer a wide variety of new and used vehicles, customer financing, parts, and provide expert maintenance and repair services.
Part-Time Maintenance Technician I (Granite Pointe Apartments) WinnCompaniesPart-Time Maintenance Technician I (Granite Pointe Apartments)Berkeley, CA$20–$25 / hourWinnCompanies is searching for a Part-Time Maintenance Technician I to join our team at Granite Pointe Apartments, a 99-unit affordable residential community located in Oakland, CAIn this role, you will perform maintenance functions in the community, including rental units, residential common areas, office, grounds and parking lots. Perform repairs in such areas as, but not limited to, appliances, carpentry, hardware accessories, masonry, painting, basic electrical, basic plumbing, and basic HVAC.Complete assigned service requests and repairs consistent with company operating procedures.
Maintenance Technician I - 890 Residential Services Healthright 360Maintenance Technician I - 890 Residential ServicesSan Francisco, CAThe Maintenance Technician I plays a crucial role in maintaining aging infrastructure, performing preventative maintenance, diagnosing and repairing mechanical, electrical, and structural issues, and working with exterminators to mitigate rodent infestations. The Maintenance Technician I is responsible for the comprehensive maintenance, repair, and upkeep of the agency's facilities, including historical buildings built in the late 1800s to early 1900s, ranging up to 40,000 square feet with multiple floors and elevators.
Safety Manager Ballard Marine Construction IncSafety ManagerSan Jose, CA$120,000–$200,000 / yearWorking knowledge of conventional tunnel construction processes including, but not limited to, drilling, blasting, soft ground excavation, muck haulage, shotcrete application, rock bolt installation, and steel set installation. We have a staff of highly competent dedicated professionals employing some of the most innovative construction techniques in the industry to build landmark bridges, tunnels, and marine structures.
Laboratory Operations & Maintenance Technician Periodic LabsLaboratory Operations & Maintenance TechnicianMenlo Park, CaliforniaPeriodic Labs is building an autonomous laboratory for high-throughput materials discovery — combining advanced synthesis, characterization, automation, robotics, and AI to accelerate the development of next-generation materials. We're looking for a highly capable, hands-on Laboratory Operations & Maintenance Technician to help build, maintain, and scale the physical infrastructure that enables our scientific and engineering teams to move quickly.
Biospecimen Operations Technician SonoTheraBiospecimen Operations TechnicianSouth San Francisco, CA$30–$45 / hourThis salary range is an estimate, and the actual salary may vary based on various factors, including, without limitation, individual education, experience, tenure, skills, and abilities, as well as internal equity and alignment with market data, including potential adjustments for geographic location. Headquartered in South San Francisco, SonoThera brings together a world-class, interdisciplinary team focused on translating breakthrough science into transformative therapies.
Robot Operations Manager PM 1X TechnologiesRobot Operations Manager PMSan Carlos, CA$145,000–$175,000 / yearThe Maintenance & Repair Operations team is responsible for keeping robotic systems operating reliably as we scale from prototype development into higher-volume deployment. You'll own the execution and scaling of repair operations for complex electromechanical robotic systems - from intake and diagnostics through repair, validation, and return-to-service.
NewLogistics Technician, Data Center Operations Apple IncLogistics Technician, Data Center OperationsSanta Clara, CADrive operational excellence in all warehouse operations to include: warehouse management systems, inventory receipt and processing, warehouse safety protocols, warehouse layout and product placement, maintenance and organization of all warehouse areas (5S).Experience in one of the following: warehousing, inventory control, shipping/receiving supply chain or logistics Ability to lift 50 lbs waist high High School diploma or GED equivalent Valid Drivers LicenseComputer skills with basic understanding of Microsoft Suite or Apple equivalent Excellent organizational and time management skills to effectively prioritize tasks and meet deadlines. Be a subject matter expert to define and set up key supporting processes such as Inbound Operations (receipt to put-away), Outbound Operations (pick, pack, quality control audits, ship), Inventory Control (cycle counting, adjustments, movements).