Staff Systems Engineer, Microsoft Teams Visa Technology and Operations LLCStaff Systems Engineer, Microsoft TeamsFoster City, CA$131,600–$233,700 / yearAs a Microsoft Teams Staff Systems Engineer, you will own the end‑to‑end deployment, optimization, and evolution of the Teams environment, including meetings, chat, channels, voice, platform integrations, security, device integration, and space booking capabilities. Maximize AI and agentic automation opportunities across Microsoft Teams and the broader Microsoft 365 platform, including Copilot, Graph‑based automation, workflow intelligence, meeting and communication insights, and next‑generation collaboration agents.
NewSystems Engineer 2 CYNET SYSTEMSSystems Engineer 2Santa Clara, CA$71–$74 / hourTemporaryContractorPart timeAs a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.
Power Electronics R&D Engineer Gables Search GroupPower Electronics R&D EngineerFremont, CA$180,000–$200,000This role is focused on advanced power electronics, power conversion, AC/DC, DC/DC, HVDC/DC, inverter-based systems, and next-generation high-power conversion platforms for advanced infrastructure, data center power, EV charging, charging systems, and energy storage applications. This is an opportunity to join a newly forming R&D team working on real-world, high-power engineering challenges with strong visibility, global collaboration, and meaningful influence over future power conversion platforms.
AWS DevOps Engineer StefaniniAWS DevOps EngineerSan Francisco, CARemote$100–$106 / hourTemporaryContractorAbout Stefanini Group: The Stefanini Group is a global provider of offshore, onshore and near shore outsourcing, IT digital consulting, systems integration, application, and strategic staffing services to Fortune 1000 enterprises around the world. Our presence is in countries like the Americas, Europe, Africa, and Asia, and more than four hundred clients across a broad spectrum of markets, including financial services, manufacturing, telecommunications, chemical services, technology, public sector, and utilities.
Quant Engineer JobotQuant EngineerSan Francisco, CA$300,000–$375,000 / 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. Our platform transforms complex and fragmented market information into actionable pricing and investment intelligence for leading asset managers, investment banks, venture funds, and other sophisticated financial institutions.
Senior Software Engineer JobotSenior Software EngineerSan Francisco, CA$225,000–$450,000 / 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. We’re building the infrastructure layer for private capital markets — combining modern software systems, AI-native workflows, and deep market intelligence to transform how private market transactions happen.
NewSenior Substation Project Engineer CYNET SYSTEMSSenior Substation Project EngineerOakland, CA$86–$91 / hourTemporaryContractorPart timeAs a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.
Senior Staff Engineer, AI Governance Visa Technology and Operations LLCSenior Staff Engineer, AI GovernanceFoster City, CA$192,200–$307,700 / yearExperienced with high-performance imperative languages including Python, Java, Golang, React.js, Next.js • Built predictive models using Python and ML libraries and managed their lifecycle, from development to production. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.
Lead Software Engineer Visa Technology and Operations LLCLead Software EngineerFoster City, CA$192,300–$307,600 / yearVisa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. Essential Functions Provide deep technical leadership within Shared Services Product Development, with a strong understanding of how shared platforms enable downstream product innovation.
NewTransmission Line Engineer CYNET SYSTEMSTransmission Line EngineerOakland, CA$82–$87 / hourTemporaryContractorPart timeAs a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.
Staff Machine Learning Engineer, Responsible AI Engineering Visa Technology and Operations LLCStaff Machine Learning Engineer, Responsible AI EngineeringFoster City, CA$169,100–$270,800 / yearAs an AI Engineer in AI Governance engineering team, you will have the unique chance to make a direct and meaningful impact by building and delivering solutions that power AI Governance engineering solutions. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.
Electrical PE JobotElectrical PESan Francisco, CA$135,000–$175,000 / 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. Lead the design and development of electrical systems including power distribution, emergency and standby power (UPS, generators), lighting, fire alarm, and telecom systems for mission critical healthcare and pharmaceutical facilities.
FullStack Data / ADK Engineer CYNET SYSTEMSFullStack Data / ADK EngineerSanta Clara, CA$50–$55 / hourTemporaryContractorPart timeAs a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.
Mechanical Design Engineer CYNET SYSTEMSMechanical Design EngineerMilpitas, CA$58–$63 / hourTemporaryContractorPart timeAs a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.
RF Test Engineer CYNET SYSTEMSRF Test EngineerMountain View, CA$50–$55 / hourTemporaryContractorPart timePerform Radiated/Conducted TRP/TIS/aGPS Testing, in signaling or non-signaling mode, using test chambers, including but not limited to, R&S Anechoic chamber; BlueTest Chamber; GTS chamber, etc. Perform RF System Testing on devices for design verification and system validation, including controlled (conducted and radiated) test environment tests for RF performance, interference, noise floor (RSSI), coexistence (multiple-radios), throughput, etc.
Hardware Validation Engineer CYNET SYSTEMSHardware Validation EngineerFremont, CA$45–$50 / hourTemporaryContractorPart timeAs a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and professional staffing, powered by a high-performing recruitment engine operating across North America and Asia.
Distribution Engineer LeidosDistribution EngineerSan Francisco, CA$59,150–$106,925As a valued team member, you can look forward to a fast paced, diverse work environment and flexible work hours/work arrangements, as well as managers who will encourage career development and growth opportunities, including Professional Engineer License (PE) , Project Management Professional (PMP) , Leadership training, Formal Mentorship Programs, Management opportunities. Independently develop design and construction work packages for moderately complex electrical overhead and underground distribution systems operating from 4kV through 138kV mostly associated with programmatic work such as overloaded transformers, inspection and maintenance, joint use, and inspection reports.
Design Verification Engineer III Epitec StaffingDesign Verification Engineer IIISunnyvale, CAPerform power/performance measurement across design stages using PPA RTL, PtPx tool; correlate results with post silicon and feed back to design/power-modeling teams. Design Verification Engineer for wearables silicon accelerator IPs — testbench development, coverage-driven verification, RTL debug, and power/performance measurement.
Senior Antenna Engineer BC ForwardSenior Antenna EngineerSan Francisco, CA$89–$95 / hourFull timeYou will work cross-functionally with electrical engineering, software, product design, industrial design, program management, operations, and manufacturing partners to deliver wireless products to market. You will guide products from concept to production, including simulations, prototyping, field and lab measurements, specifications and test plans, compliance report reviews, and resolution of antenna-related challenges.
NewLead PHP Engineer (Publishing) JobotLead PHP Engineer (Publishing)Daly City, CA$140,000–$165,000 / 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. This role is ideal for an experienced PHP engineer who enjoys working with data-driven systems, third-party integrations, and performance optimization.
Staff Power Systems Engineer Peak EnergyStaff Power Systems EngineerBurlingame, CaliforniaWe're looking for a power systems electrical engineer to own the electrical architecture, integration, and deployment of our energy storage site across applications, including utilities and data centers, as examples. The ideal candidate is a deeply knowledgeable power systems engineer who is equally comfortable presenting to technical and non-technical customer teams as they are conducting in-depth research and analysis.
Power Systems Engineer Electrical Engineer Tata Consultancy Services LtdPower Systems Engineer Electrical EngineerOakland, CA$100,000–$120,000 / yearPower system analysis software (ETAP, SKM, PSCAD, PowerWorld, CYME) • AutoCAD / AutoCAD Electrical / Revit (preferred) • Microsoft Office (Excel, Word, PowerPoint). • Power System Design & Analysis • Perform power system studies, including load flow, short circuit, arc flash, motor starting, and transient stability (as applicable).
Power Systems Engineer Momentus IncPower Systems EngineerSan Jose, CA$140,000–$195,000 / yearThe ideal candidate should be accustomed to working in a fast-paced environment and enjoys working on ensuring the reliability, efficiency, and sustainability of the power supply, addressing both the technical and economic aspects of power system design and operation. With an experienced team of aerospace, propulsion, and robotics engineers, Momentus has developed a cost-effective and energy-efficient in-space transport system.
Power Systems Engineer, Transmission Planning & System Studies Tesla IncPower Systems Engineer, Transmission Planning & System StudiesPalo Alto, CA$120,000–$228,000 / yearDegree in Electrical Engineering (power systems focus) with 5+ years transmission planning experience or 3+ years at an ISO/RTO, utility, IPP, or consultancy; or equivalent experience. Along with competitive pay, as a full-time Tesla employee, you are eligible for the following benefits at day 1 of hire: Medical plans > plan options with $0 payroll deduction.
NewSenior Power Systems Engineer SB EnergySenior Power Systems EngineerRedwood City, CA$160,000–$190,000 / yearPromote Sustainability with a Purpose - At SB Energy, you may choose to become a part of our 'Just Renewables' Committee and work along with team members who share a belief in pursuing our mission in such a way that empowers a diverse and inclusive workforce that advances social justice and equity for our employees as well as partners and communities! The engineer will develop and execute advanced simulations using PSCAD/EMTDC, PowerWorld, PSS®E, and other applicable tools to assess system performance and support compliance with utility, regional reliability, and ISO/RTO requirements, including those applicable in WECC, ERCOT, SPP, PJM, MISO, and CAISO.
NewPower Systems Engineer TapestryPower Systems EngineerMountain View, California$159,000–$277,000 / yearBy driving model quality assurance, optimizing data ingestion, and continuously refining our validation frameworks, you will play a pivotal role in scaling the reach, reliability, and real-world impact of our AI-powered grid platform. The following areas are handled by cross-functional partners: Core Software & Automation Development: Use and provide feedback on the tools, and not responsible for writing production code to build the underlying platform or automate the pipeline infrastructure.
Power Systems Engineer, Hardware In Loop Tesla IncPower Systems Engineer, Hardware In LoopPalo Alto, CA$120,000–$228,000 / yearConduct Controller Hardware-in-the-Loop (CHIL) testing to validate control behavior against design specifications and project requirements, developing and maintaining test setups, automating processes, and ensuring efficient studies with well-organized documentation. As a Power Systems Engineer, you will play a crucial role in enhancing our in-house Controller Hardware-in-the-Loop (CHIL) testing capabilities for energy storage, solar, and electric charging systems at large scale.
Senior Power Systems Engineer HPSenior Power Systems EngineerSan Francisco, CaliforniaThe ideal candidate brings strong systems thinking, hands-on experience with low power architectures, and the ability to build models and telemetry to drive tradeoffs from SOC level to board level to maximize user runtime. The candidate will build power models, define system use cases and operating modes, partner with product and engineering teams to meet aggressive power targets, and define manufacturing tests and field telemetry for NPI.
Senior Power Systems Engineer Humane IncSenior Power Systems EngineerSan Francisco, CA$170,000–$240,000 / yearThe ideal candidate brings strong systems thinking, hands-on experience with low power architectures, and the ability to build models and telemetry to drive tradeoffs from SOC level to board level to maximize user runtime. The candidate will build power models, define system use cases and operating modes, partner with product and engineering teams to meet aggressive power targets, and define manufacturing tests and field telemetry for NPI.
Electrical Engineer (Systems / Motor / Power) DroydElectrical Engineer (Systems / Motor / Power)San Francisco, CaliforniaThis role is ideal for someone comfortable working across practical electrical architecture, hardware integration, and power-related engineering challenges. To operate reliably in the real world, our robots need strong electrical systems for power delivery, conversion, and subsystem integration.
Senior Power Systems Engineer Hp IqSenior Power Systems EngineerSan Francisco, California$170,000–$240,000 / yearThe ideal candidate brings strong systems thinking, hands-on experience with low power architectures, and the ability to build models and telemetry to drive tradeoffs from SOC level to board level to maximize user runtime. The candidate will build power models, define system use cases and operating modes, partner with product and engineering teams to meet aggressive power targets, and define manufacturing tests and field telemetry for NPI.
Embedded Software Engineer - Power Systems ZooxEmbedded Software Engineer - Power SystemsFoster City, CA$155,000–$190,000 / yearResponsibilities for embedded software development for the Power management functions and sub-systems of the Zoox vehicle includes Power management and efficiency, Charging control, a variety of operator controls, integration of supplier systems, coordination and control of all Power sub-systems, and low-level vehicle controls. Work cross-functionally with vehicle engineers, controls engineers, software engineers, validation engineers, and other experts to ensure a seamless and highly-automated experience for the Zoox vehicle.
Power Systems Engineer Terabase EnergyPower Systems EngineerBerkeley, CARemote$80,000–$130,000 / yearThis includes developing advanced high-fidelity models for renewable plants, inverters, plant controllers, energy management systems (EMS), microgrid controllers, and grid networks to support load flow, dynamic, transient, and EMTP studies, including MOD compliance and interconnection requirements. Position Summary: The Power Systems and Controls Engineer will serve as a key technical leader in power system modeling, simulation, and controls for renewable generation, energy storage, and microgrid applications across transmission, distribution, and behind-the-meter systems.
Power Systems Engineer, Tapestry X Development LLCPower Systems Engineer, TapestryMountain View, CA$159,000–$277,000 / yearBy driving model quality assurance, optimizing data ingestion, and continuously refining our validation frameworks, you will play a pivotal role in scaling the reach, reliability, and real-world impact of our AI-powered grid platform. The following areas are handled by cross-functional partners: Core Software & Automation Development: Use and provide feedback on the tools, and not responsible for writing production code to build the underlying platform or automate the pipeline infrastructure.
NewStaff Software Engineer: Embedded Power Systems & Functional Safety Span.IOStaff Software Engineer: Embedded Power Systems & Functional SafetySan Francisco, CADesigning and implementing control algorithms for power management (including load shedding logic, relay actuation sequencing, and fault response state machines) running on MCUs in an RTOS environment, working with system architects to define requirements and validate behavior across operating conditions. Owning the functional safety software lifecycle for new features: authoring hazard analyses and software FMEAs, designing safety mechanisms and diagnostics into firmware, and producing the documentation and evidence packages required for UL 1998, UL 60730, and UL 3141 certification.
Embedded Software Engineer - Power Systems Zoox IncEmbedded Software Engineer - Power SystemsFoster City, CA$155,000–$190,000 / yearResponsibilities for embedded software development for the Power management functions and sub-systems of the Zoox vehicle includes Power management and efficiency, Charging control, a variety of operator controls, integration of supplier systems, coordination and control of all Power sub-systems, and low-level vehicle controls. Work cross-functionally with vehicle engineers, controls engineers, software engineers, validation engineers, and other experts to ensure a seamless and highly-automated experience for the Zoox vehicle.
Electrical Systems Engineer - Power and Controls Rondo Energy IncElectrical Systems Engineer - Power and ControlsAlameda, CA$125,000–$140,000 / yearThe successful candidate will work with internal engineering teams, equipment vendors, system integrators, and contractors throughout the engineering, procurement, manufacturing, testing, commissioning, and startup phases of projects. Rondo is deploying low-cost, zero-carbon Rondo Heat Batteries to accelerate the deployment of renewable energy and to significantly decarbonize industrial processes that are commonly thought of as "difficult-to-decarbonize".
Senior Power Electronics Engineer - Ground Systems ZiplineSenior Power Electronics Engineer - Ground SystemsSan Francisco, CA$135,000–$225,000 / yearOur 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. This role is central to enable our next generation of drone logistics, solving complex challenges in power distribution, power conversion, battery charging, high performance microprocessor, high-speed network communication and system-level integration.
Software Engineer, Frontier Systems - Power Management OpenAISoftware Engineer, Frontier Systems - Power ManagementSan Francisco, CaliforniaFor 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. Collaborate with hardware design teams to integrate system-level power control requirements into IT hardware design, ensuring seamless coordination between software-driven power management and hardware capabilities.
RF Power Systems Test Engineer Applied MaterialsRF Power Systems Test EngineerSanta Clara, CA$128,000–$176,000 / 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. As an Electrical Engineer, you are responsible for designing, modifying, and troubleshooting electrical or electronic engineering assemblies, layouts, schematics, and drawings to advance the equipment that supports our technology.
Senior Staff Systems Integration Engineer (Power & Compute) Agility RoboticsSenior Staff Systems Integration Engineer (Power & Compute)Fremont, CA$190,000–$247,000 / yearAgility's commercially deployed humanoids operate alongside teams in warehouses, manufacturing facilities, and distribution centers—tackling physically demanding and repetitive tasks while enabling workers to focus on higher-value work. Your contributions and technical leadership will drive clarity in ambiguous situations, ensuring new prototypes come online smoothly, system functions operate with stability, and technical issues are rapidly understood and resolved.
System Validation Engineer, Low Voltage Power Systems, Vehicle Software Tesla IncSystem Validation Engineer, Low Voltage Power Systems, Vehicle SoftwarePalo Alto, CA$140,000–$396,000 / yearWork closely with engineers across software, hardware and AI teams to design new vehicle architectures and resolve issues early in the development cycle for upcoming vehicle products. Develop prototype test setups to integrate new subsystems with simulated or actual vehicle components, utilizing software driven test automation.
Electrical Systems Engineer - Power And Controls Rondo Energy, Inc.Electrical Systems Engineer - Power And ControlsAlameda, CA$125,000–$140,000 / yearThe successful candidate will work with internal engineering teams, equipment vendors, system integrators, and contractors throughout the engineering, procurement, manufacturing, testing, commissioning, and startup phases of projects. Rondo is deploying low-cost, zero-carbon Rondo Heat Batteries to accelerate the deployment of renewable energy and to significantly decarbonize industrial processes that are commonly thought of as "difficult-to-decarbonize".
Power System Engineer - Interconnection Studies GridCAREPower System Engineer - Interconnection StudiesRedwood City, CaliforniaDevelop power flow and stability models to evaluate system impact for new interconnections, including data centers and renewable generation (inverter-based resources). In this role, you’ll conduct in-depth technical analyses, support developing study automation tools, analyze results and prepare study reports to review with customers.
Staff Software Engineer: Embedded Power Systems & Functional Safety Span.IO, Inc.Staff Software Engineer: Embedded Power Systems & Functional SafetySan Francisco, CADesigning and implementing control algorithms for power management (including load shedding logic, relay actuation sequencing, and fault response state machines) running on MCUs in an RTOS environment, working with system architects to define requirements and validate behavior across operating conditions. Owning the functional safety software lifecycle for new features: authoring hazard analyses and software FMEAs, designing safety mechanisms and diagnostics into firmware, and producing the documentation and evidence packages required for UL 1998, UL 60730, and UL 3141 certification.
Staff Software Engineer: Embedded Power Systems & Functional Safety SPANStaff Software Engineer: Embedded Power Systems & Functional SafetySan Francisco, CaliforniaDesigning and implementing control algorithms for power management (including load shedding logic, relay actuation sequencing, and fault response state machines) running on MCUs in an RTOS environment, working with system architects to define requirements and validate behavior across operating conditions. Owning the functional safety software lifecycle for new features: authoring hazard analyses and software FMEAs, designing safety mechanisms and diagnostics into firmware, and producing the documentation and evidence packages required for UL 1998, UL 60730, and UL 3141 certification.
Senior Datacenter Power Systems Modeling Engineer NvidiaSenior Datacenter Power Systems Modeling EngineerSanta Clara, CAThis role owns rack-level architecture definition and involvement, end to end power modeling and simulation for advanced Datacenter power and energy scheme, and power shelves, busbars, cable vendor management. You ensure the successful delivery of power-related engineering programs by modeling and simulation efforts, coordinating across power architects, power validation, firmware, mechanical teams, and suppliers management.
Power Systems Design Engineer Etched.ai IncPower Systems Design EngineerSan Jose, CAAs a Power Systems Design Engineer at Etched, you will be pivotal in designing, selecting, and qualifying power supply solutions to meet extremely high power demands for processors. You will work closely with power supply vendors and leverage your expertise in multi-phase power solutions, 48V input conversion, and power loss analysis to ensure optimal performance and reliability.
Principal Engineer, Power Systems Engineering Analog Devices IncPrincipal Engineer, Power Systems EngineeringSan Jose, CA$157,080–$227,460 / yearThis Principal Engineer, Power Systems Engineering position is a fast-paced role involving using ADI's portfolio of high-performance power products to solve engineering challenges in the industry by developing system-level solutions and references for a wide variety of applications. ADI combines analog, digital, AI, and software technologies into solutions that combat climate change, reliably connect humans and the world, and help drive advancements in automation and robotics, mobility, healthcare, energy and data centers.
Internship, Power Systems Studies Engineer, Energy Engineering (Fall 2026) Tesla IncInternship, Power Systems Studies Engineer, Energy Engineering (Fall 2026)Palo Alto, CA$20–$50 / hourFocus mostly on modeling battery energy storage systems in any of these software utilizing Python interfaces, running simulations, and analyzing the impact of these resources on stability of grids and microgrids. Tesla Energy Grid Solutions team is looking for a highly motivated individual who is excited about solving real-life power system issues around renewables integration.