Java languageJobs

As a business in Hamburg, Germany, we require a detail-oriented freelancer to conduct extensive pre-employment screenings. The main purpose is to examine potential ...employee references, and confirm past employments. Key Areas: - Verification of Start and End Dates - Detailed check on Job Title and Responsibilities - Investigation into reasons for Leaving Ideal candidates should have experience in human resources, specifically employment verification. They should have meticulous attention to detail and understand German employment laws. Knowledge of local language and business practices in Hamburg is advantageous. Please include in your application any relevant work experience you may have in this field along with a detailed project proposal outlining how you intend to approac...

I am looking for a proficient academic ...background in electrical engineering. What I need: - Detailed and comprehensive academic writing for PhD level research for various topics - In-depth understanding of EE concepts and systems. - Proper referencing and citation as per academic standards. Ideal candidate: - A solid background in electrical engineering. - Previous experience with PhD level academic writing. - Command of English language (writing should be clear, concise, and error-free). Deliverables: - Properly researched and cited PhD-level academic content. - Plagiarism free writing. - Clear and concise expression of ideas. Please only bid if you are confident in your understanding and expertise in power systems within electrical engineering and also can provide their wor...

I'm in need of a proficient software developer with a specialization in C# to construct a desktop application exclusively for our company. Key Requirements: - Proficiency in C# is a must - Familiarity with the .NET framework - Prior experience in constructing desktop applications...a specialization in C# to construct a desktop application exclusively for our company. Key Requirements: - Proficiency in C# is a must - Familiarity with the .NET framework - Prior experience in constructing desktop applications is highly preferred. The project involves constructing a desktop application for our company. The successful candidate should have a strong understanding of the C# language and be familiar with the .NET framework. A solid track record in creating desktop applications i...

I'm in need of a highly skilled PHP developer with at least 5 years of experience to handle the following: - Front-end development - Back-end development - Database management For this, familiarity with Laravel and CodeIgniter frameworks is preferred. Additionally, a JAVA developer is required to take charge of: - Application development - API integration - Server-side scripting The ideal candidate for this role will have substantial experience and a proven track record in these specific areas.

I'm looking for a freelancer to complete my wordpress. Most of the website is already completed, the freelancer would complete the website and mobile apps for the website. The scope of work is as follows: Project Details: The remaining tasks include: •Improvement of graphics and design changes to ...gather user feedback and improve the support experience. •Make sure website passes google speed check with score of minimum 80+mobile and 90+ desktop •Setting up cookies collection and analysis system to track and personalize user experience. •Unlimited revisions of all improvement works. • Improvement of customer account to cover all ecommerce features including address, geolocation, preferred language & currency, Wishlist, order status, order trac...

I am looking for a skilled developer to design and implement embedded software for a microcontroller-based system. The software should have the following key functionalities: - User Interface: The software should have an interactive...scratch. - Writing clean, efficient, and maintainable code in C++. - Extensive testing and debugging to ensure the software functions as expected on the microcontroller platform. - Optional: Integration with hardware components may be required, so experience in this area is a plus. Ideal skills and experience: - Strong background in embedded software development. - Proficiency in C++ programming language. - Experience with microcontroller platforms. - Proven ability to implement user interfaces, real-time processing, and data communication in embedde...

I am looking for a skilled test automation freelancer who can automate testing for a web application. The tests should be written in Python and JavaScript using Selenium WebDriver. The primary requirement is to support testing on Chrome, Firefox, and Safari. Ke...Firefox, and Safari. Key requirements include: - Proficiency in Python and JavaScript - Previous experience with Selenium WebDriver - Strong understanding of web application testing - Experience in cross-browser testing - Ability to troubleshoot and fix issues quickly - Excellent communication skills Please provide examples of previous test automation work you've done, particularly with multi-language support and preferably with Selenium. Let me know if you have experience with testing web applications across diff...

I'm urgently in need of a seasoned Spring Boot developer with a track record of delivering quality applications. You should be well-versed in all areas of the Spring Boot framework and have a significant amount of experience in Java development. The ideal candidate should have a thorough understanding of user authentication and authorization, database connectivity and CRUD operations, and integration with third-party APIs. Key requirements: - An expert in Spring Boot - Extensive experience in Java development - Proven track record in user authentication and authorization systems - Strong expertise in database connectivity and CRUD operations - Skilled in integrating with third-party APIs Please provide your portfolio with similar projects and a brief overview of your ...

As a client, I'm in search of an experienced Flutter developer. This project specifically pertains to the development of a mobile application. I should highlight that the mobile application requires the incorporation of key functionalities like user authentication, a real-time chat feature, and se...pertains to the development of a mobile application. I should highlight that the mobile application requires the incorporation of key functionalities like user authentication, a real-time chat feature, and seamless payment integration. Ideal Skills and Experience: - Advanced level of expertise in Flutter development. - Previous experience in developing mobile applications. - Proficiency in Telugu language. - Prior projects involving user authentication, chat functionalities, and pa...

...improving interactions with my brand. A developer with experience in e-commerce and marketing would be ideal for this task. Natural Language Processing (NLP) capabilities in the bot are not certain at this stage, so a freelancer who can recommend or advise on this would be beneficial. Specifically, the project involves: • Developing an Instagram chatbot • Ensuring the bot can schedule appointments • Empowering the bot to promote special deals or offers Ideal skills and experience: • Proven track record of developing bots for Instagram • Understanding of Instagram APIs and chatbot integrations • Experience in e-commerce or marketing • Knowledge of natural language processing (if recommended) By the end of this project, I aim to have a...

...our frontend and allow users to visualise different information from the selected parameters. I have provided some tables format and filters in the files sections. I have a prorotype of the data extraction moule in Python which can be used as the template along with the API key. I can also provide the list of all parameters needed for extraction as well. Ideal Skillset: - Proficient in Python / JAVA programming - Demonstrable experience connecting APIs to frontends (in this case I have a WordPress site) - Strong understanding of database management Key Responsibilities: - Understand our API and integrate it effectively with the frontend - Make sure the user data, account information, and product inventory tables are properly connected - Ensure the data flow is seamless and se...

My manufacturing unit needs a Java desktop application that runs on Windows OS, to keep track of raw materials. The application will: 1. Store Product Details: - Record and manage product information, where a product is a combination of various raw materials. 2. Monitor Raw Material Stock: - Check the availability of raw materials in real-time. - The application should provide a status warning within its interface when a raw material's stock is low. 3. User-Management: - Include user roles and permissions functionalities. Skills and experience required: Proficiency in Java, Windows application development, and database management. Understanding of manufacturing unit's logistic needs and user management functionalities are also necessary.

As the professional handling this project, you'll engage with big data exceeding 10GB. Proficiency in Python, Java, and Pyspark are vital for success as we demand expertise in: - Data ingestion and extraction: The role involves managing complex datasets and running ETL operations. - Data transformation and cleaning: You'll also need to audit the data for quality and cleanse it for accuracy, ensuring integrity throughout the system. - Handling Streaming pipelines and Delta Live Tables: Mastery of these could be game-changing in our pipelines, facilitating the real-time analysis of data.

We're looking for multiple competent native English editors to trim content and help us improve English language usage across a large batch of tutorials. Starting with a paid trial. Please bid $18.

...assistance geared towards ensuring customer satisfaction. 2. Data analysis and pattern analysis: Examining information to discover useful insights. 3. Financial management: Making effective decisions related to the company's financial resources. 4. Marketing: Creating and executing strategies to enhance brand reach and reputation. Moreover, the AI agents should be well conversant in: - Natural Language Processing: For better customer service delivery and understanding of sentiments. - Machine Learning: To continually adapt and improve performance based on gathered data - Data Visualization: To provide understandable insights from complex information. I also expect the AI to perform tasks such as: - Speech recognition: For better customer sales support. - Sentiment analys...

...matchmaking website that targets users from various countries and regions. Key Features: - The website should have a sophisticated matchmaking algorithm that can suggest compatible matches based on user preferences and behavior. - A robust messaging system is another must-have feature for this project. The system should allow users to communicate seamlessly with their matches in real-time. Language Support: The website should not only support English, Chinese, and Spanish, but also cater to users from Russia, Vietnam, Laos, Thailand, Myanmar, France, and Portugal. Proficiency in these languages is a key requirement for this project. Target Audience: This website is intended to target users from the United States, China, Spain, Russia, Vietnam, Laos, Thailand, Myanmar, France,...

I am looking for a skilled developer to create a website in Odoo primarily for E-commerce purposes. The website should be multilingual, with support for multiple languages. Key Requirements: - E-commerce Website: The primary purpose of the website is to facilitate online sales, so experience in designing and developing e-commerce websites is a must. - PayPal Integration: Integration of PayPal as the payment gateway. - Multilingual Support: The website should support multiple languages. Experience with multilingual websites would be advantageous. - Odoo: Proficiency in Odoo is preferred but not mandatory. Ideal Skills: - Proficient in web development, particularly e-commerce websites. - Experience with payment gateway integration, especially PayPal. - Familiarity with creating multilingua...

I am in need of an experienced Spanish translator to convert my highly technical English academic content into Spanish. The translation must be done manually, without the ...content into Spanish. The translation must be done manually, without the use of auto-translation or AI tools. Key Requirements: - Fluency in both English and Spanish - Proven experience in translating highly technical, academic content - A deep understanding of the nuances of both languages - Ability to maintain the tone and context of the original content The ideal candidate should possess strong language skills and be meticulous in their attention to detail. Previous experience in academic translations, particularly in scientific research, will be highly advantageous. A commitment to accuracy and quality is ...

...types. Randomize question order and answer choices to prevent cheating. Provide instant feedback and scores upon completing a mock test. User Profiles and Progress Tracking: Allow users to track their typing and mock test performance over time. Display statistics such as average typing speed, accuracy, scores in mock tests, etc. Provide recommendations for improvement based on user performance. Language Support: Implement support for typing and displaying content in both Hindi and English. Ensure proper input methods and validation for Hindi typing. Responsive Design: Create a responsive website design to ensure compatibility across various devices and screen sizes. Optimize for both desktop and mobile browsing experiences. Admin Panel: Develop an admin panel to manage user a...

Hi, I urgently require a skilled Backend Java Developer to swiftly execute API modifications tasks and resolve the bugs on immediate basis. Ideal Skills & Experience: - Proficient in Java - Proven experience in Backend API Development - Having good knowledge of Elastic Search and SmartSuite - Quick task execution and adaptability to changes Ready to work immediately and remotely on our system, Looking forward to an impressive turnaround Thanks

...are seeking an experienced Blockchain Developer to join our team and contribute to our cutting-edge projects. Position: Blockchain Developer Type: Full-time or Part-time for contract Location: 100% Remote Salary: Competitive, commensurate with experience, $5k ~ $ 8k Requirements: -Proficiency in Smart Contract development -Proficient in Solidity, as the smart contract will be developed in this language -Strong English communication skills -Bachelor's degree in a relevant field -Experience with web development technologies -Knowledge of modern web application design and best practices -Web3 & Marketplace development experience Key Responsibilities: Smart Contract: Design, develop, and deploy smart contracts on the blockchain platform. Code Implementation: Write clean, ...

...professional, I'm looking for a skilled programmer proficient in developing applications for iOS and Android. The focus of the app will be on delivering personalized recommendations. - The ideal candidate should have a strong background in AI and ML, and have experience developing mobile apps for both iOS and Android platforms. Knowledge of chatbot integration, image recognition, and natural language processing will be beneficial, but the primary focus will be on creating a solid recommendation system. - The app will rely on a variety of data sources to generate these recommendations, including user profiles, historical data, and third-party APIs. Consequently, experience working with these data types and crafting recommendation systems will be highly valuable. - The goal...

I'm seeking a professional to handle the replies for personal messages on WhatsApp, e...for personal messages on WhatsApp, ensuring that responses are tailored and timely. Key Responsibilities: - Crafting automatic, generic responses that maintain a conversational tone - Managing the chat to ensure that responses are timely - Ensuring the replies are language appropriate and culturally sensitive - Providing updates on the chat performance Ideal Skills and Experience: - Strong experience in handling personal messages on WhatsApp - Proficiency in crafting effective automated responses - Exceptional English language skills - Strong attention to detail to ensure the responses are culturally sensitive and appropriate. Please note that this role does not require responses ...

...website. It's crucial that the site is designed to circumvent the Great Firewall of China and adheres to the country's specific regulations and censorship. Key Project Details: - **Primary Goal**: The website is essentially an English e-library with an added feature of an AI voice coach for learning the language. - **Target Audience**: I'm aiming to capture the attention of local Chinese consumers. - **Content Types**: The website will host various content types including English language children's books, children's videos, and materials specifically geared towards teaching English. **Skills and Experience Required**: - Proven expertise in website content planning - Thorough understanding of the Great Firewall of China and related cen...

...* Time: Start in May 2024, lasts for half a year * Language: French (fr-FR), Korean (ko-KR), German (de-DE) * Scope of services: Bilingual (English and target language) audio annotation * Expected productivity: use 5 minutes to complete 1 minute of audio 2. Requirements: * Native in French (no noticeable dialect accent)/ Korean (a dialect from the Seoul area)/ German (have lived in Germany for at least 5 years); * Good command of English, with an intermediate to advanced level of English, i.e., European Standard B2 or equivalent (IELTS 6.0, TOEFL 80) and above; * No location requirements and the age is 18-50 years old * Freelancers only The linguists shall record a bilingual audio for at least 20 seconds, in English and the native language. The audio content inclu...

Hello I would like to fix the following site: (!!!! you need to click on OPEN button to see the URL :) :) ) in order to fix all the problems in the indexes greek and english language that show when you use the below tool: The site design and the Google Speed Insights must remain unchanged. In case minor changes has to be done, you need to make print screen to inform us what you have done.

I'm looking for a talented Marathi singer with an Alto vocal range to record a classical devotional song. While a musical accompaniment isn't necessary, an understanding and appreciation of Marathi classical music is essential for this project. The ideal freelancer will have: - A clear, powerful Alto voice - Proficiency in Marathi language and diction - A deep understanding of classical devotional music - A professional-grade home recording setup Previous experience in recording devotional or classical music is highly desired. Please include examples of previous related work in your proposal.

I'm looking for a developer to help create a voice assistant for Android devices. The primary function of the assistant will be answering questions, so experience with natural language processing (NLP) and machine learning will be crucial. Key Requirements: - Development specifically for Android devices - Implementation of a question-answering feature - Support for multiple languages Ideal Skills: - Proficient with Android app development - Strong background in NLP and machine learning - Experience with voice assistant development is a plus - Understanding of multilingual support in applications. If you have the necessary skills and experience, please bid on this project.

I am looking for a skilled document writer to help me create a variety of documents for a...Create Document - Electrical Log Book Guidelines - MDR Guidelines - Packing & Marking Guidelines - Vendor Data Specification Create Template - ITP - MDR - SWI - JHA Ideal Candidate: - Experience in writing corporate policies and procedures, preferably in a formal tone. - Strong technical writing skills with the ability to translate complex information into easily understandable language. - Familiarity with compliance regulations and standards. - Excellent communication skills and attention to detail. - Ability to communicate & work with SME This is a great opportunity for a proficient document writer to work on impactful projects and contribute to the succe...

I'm looking for a ski...Develop a Solana trading bot using Rust - Integrate the bot with the Raydium API to monitor the WSol/New Token pair - Purchase tokens immediately upon detecting the addition of liquidity - Implement a mechanism to sell the purchased tokens from 5 wallets at user-specified sell points - Bot can be over rode to Manual Sell with keystroke Ideal Skills and Experience: - Proficient in Rust programming language - Experience in developing trading bots - Familiarity with Solana blockchain and Raydium API - Previous experience in developing bots with similar functionalities (purchase and sell points) If you have previous experience building trading bots and are familiar with Solana and Raydium, please bid with your approach to this project along with your relev...

I'm in need of an experienced content writer who specializes in the technology industry. Specifically, - You'll be respons...experienced content writer who specializes in the technology industry. Specifically, - You'll be responsible for crafting high-quality blog posts and website copy. - Each blog post should exceed 1000 words, illustrating deep knowledge in the topic area. - The website copy would need to reflect the same passion and understanding of technology. Ideal skills include: - An excellent command of English language - Strong research capabilities - A demonstrated knowledge of the technology sphere. In your proposal, please provide samples of your work that demonstrate your aptitude in creating engaging and informative tech-centered content. Websi...

...designing exp. More likely in infotainment, medical domain or any embedded device with touchscreen • Good with C++/ OOPS and able to create UML designs • Handle team as team leader • Extensively debugged embedded systems connected using CAN or similar protocols. • Good team player and ready to help others. Skills: • Significant experience in the Design and development of HMI tools QT/QML • Language - Embedded C, C++ • Design and development of UI logic, using C/C++ programming • OS/Environment Linux preferable • Architecture knowledge in UML • Compiler/Debugger Cross compilers • Microcontrollers/Processors IMX -NXP preferable • Knowledge of interfacing with C++ based library API will be a plus The ideal candidate wou...

I'm looking for a skilled developer who can create a Chatbot Software as a Service (SaaS) product that specifically caters to small businesses. This chatbot will primarily be designed to answ...effectively and accurately answer FAQs. - It needs to be user-friendly and easily integratable into small business websites. - The system should have the capacity to support multiple languages. Ideal Skills and Experience: - Strong background in AI and chatbot development. - Experience in developing SaaS products. - Familiarity with small business needs and preferences. - Proficiency in multiple language support is a plus. This is a great opportunity for someone who is passionate about creating innovative solutions for small businesses. if you already have a SaaS Chatbot product that...

I'm looking for skilled teachers, proficient in English, Spanish, Italian and Brazilian Portuguese (or native speakers which are also graduated teachers). The ideal candidate should have a deep understanding and experience with teaching methods such as PNL (Neurolinguistic Programming), Natural Method and...give you. - Implement PNL, Natural Method and Auditive Method in the teaching process. Ideal Skills: - Fluency in all four languages, English, Spanish, Italian and Brazilian Portuguese. - Proficient in PNL, Natural Method and Auditive Method. - Prior experience in multilingual teaching would be an asset. Your role will be pivotal in ensuring our students receive a well-rounded and immersive language learning experience, ensuring to prepare lessons that work with both sides...

I need a proficient translator who is fluent in Hindi and English. The task at hand is to translate educational materials from English to Hindi. These materials are targeted at adults, so the translation should be clear, accurate, and comprehensive. Key Responsibilities: - Translate English educational materials into Hindi -...comprehensive. Key Responsibilities: - Translate English educational materials into Hindi - Ensure the translation is appropriate for an adult audience - Maintain the original context and meaning during translation Ideal Candidate: - Native Hindi speaker with excellent command over English - Prior experience in translation, particularly with educational content - Familiarity with adult learning and language nuances - Attention to detail and ability to meet ...

In a bid to expand my language proficiency and storytelling capabilities in Telugu, I am seeking a professional who can assist me on this journey. My current proficiency level is beginner, but I am eager to learn and improve. Your critical tasks will include: - Speaking with me in Telugu three times a week - Helping me strengthen two main aspects of my skills: presentation skills and language fluency The perfect candidate for this position will ideally have: - Native proficiency in Telugu - Experience in teaching, particularly in storytelling and debating - Excellent communication and presentation skills We will connect online for our sessions, making this a flexible role that is open to professionals worldwide - as long as you have the ability to engage me in fluent T...

Hi US Language Solutions, I noticed your profile and would like to offer you my project. We can discuss any details over chat.

Hi US Language Solutions, I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I'm on the lookout for a seasoned WordPress developer who can create a vibrant, 10-20 page real estate website for my business. The site should be visually impressive, user-friendly, and efficient. It will need to include the following elements: - A tailored theme that aligns with the aesthetics and values of my real estate business. - Customized plugins to enhance user experience and functi...be highly advantageous. The developer should have a keen eye for design, and a track record of delivering efficient, high-performing websites. Prior experience designing real estate websites with similar features is highly desirable. This is the proposed theme to start with :: NOTE: The website should be in arabic language

I am looking for an expert in assembly language program.

An Android app for QR code reading with TTS capability. (Reading of QR code And then speaking it on the phone) TTS Synthesis in Czech language preffered. Minimalistic design USB-Upload only. No Play store. Please see uploaded video. Due time, deadline: 96 hours.

I am working on React Native with Javascript App Development Project. I need someone to Support me for this Project atleast 4 to 5 hours Per day in IST Time Zone. Project will Exist more than 2 years. I need support through Remotely(zoom). I am looking for Good Experienced(4+ years) Person as a Frontend Developer, Who can work on t...Project will Exist more than 2 years. I need support through Remotely(zoom). I am looking for Good Experienced(4+ years) Person as a Frontend Developer, Who can work on the tasks Quickly. I am looking for Long term relationship. After this Project Completed means, we will give immediately another support project. Required Skills : React Native, HTML, CSS, Javascript, API Integration(Mandatory) Language Speaking Person : English Note: I will pay on hou...

Hi, Here is a project in java gui you can read the file pdf which continent the description and the another file compressed it's related with the project too (it's mentioned in the pdf) The deadline:1 June Budget: 120$ language requise:arabic and french

I am in need of a qualified, creative and patient summer tutor for my 4-year-old with a focus on English language, Mathematics, and Science. The ideal candidate should be: - Skilled in developing interesting and engaging educational content for a young learner. - Have hands-on experience in tutoring young children. - Strong command over English language, Mathematics and Science. - Proficient with teaching English language, particularly in areas of speaking, reading comprehension, and writing. Responsibilities will include: - Spending 15 hours per week tutoring my child. - Developing engaging activities to build skills in English language, Mathematics and Science. - Focusing specifically on enhancing speaking proficiency, improving reading and comprehensio...

I've a scanning solution that's 80% complete. I need a Linux developer to provide the final touches. The fun...developer to provide the final touches. The functionalities required include: - Image cropping - OCR (Optical Character Recognition) - Batch scanning - Document recognition The next step implies analyzing the current software used and advising on the suitable programming language. Also, the solution must be compatible with multifunctional printers. The ideal freelancer should have a background in Linux development and have solid experience in OCR and batch scanning technologies. Knowledge of programming languages (C++, Python, Java) along with a strong hardware understanding would be an asset. We have videos of the previous solution which we can share to t...

...I'd like it to be ATS friendly, free of any language mistakes, and well-designed. Key Requirements: - Make the CV ATS friendly: Ensure that it's well-structured and contains the right keywords to pass through ATS systems. - Edit and fix all language mistakes: A flawless CV is critical, so I need someone who can proofread and correct language errors. - Provide 3 different designs: I would like to have 3 different designs of the CV for me to choose from. - Deliver both a 1-page and a 2-page version: I aim to have both a concise, 1-page version and a more detailed 2-page version. Ideal Skills and Experience: - Proven experience in CV editing and formatting. - Familiarity with ATS and the requirements for an ATS friendly CV. - Strong command of language...

I'm urgently in need of a proficient, attentive WordPress web developer to help with substantial modifications on Flirtphy.com. This project will involve two primary tasks: 1. **Menu Customization**: Although I'm uncertain of all of the specifics of the menu button customizations required, I know that they must be tailored to harmonize with the site's overall design language and style. 2. **Page Importation**: I'm also looking to import particular pages from another WordPress website directly onto Flirtphy.com. Specifically, I need the Home page to be copied and imported onto my site. Ideal freelancers for this project would have: - A solid understanding and experience working with WordPress, especially in making custom modifications and importing website pa...

Looking for a Docker expert to help me run an existing Java project from a public GitHub repository. The project is intended for development and customization, so I need someone with strong Java skills who can also manage the Docker aspect without a hitch. Key requirements: - Proficiency in Docker: This project involves not only running an existing Java project but also setting it up for further development. The right candidate should be adept at using Docker to manage and deploy applications. - Strong Java Skills: Since the project is written in Java, it's crucial that you have a good grasp of the language to successfully customize and develop it. If you're confident in your Docker and Java skills and keen on working together, I...

I'm seeking a skilled designer to create a comprehensive Quality Process Review Document in Arabic. The purpose of this document is to enhance the efficiency of our processes. The final deliverable should be in a Word document format. Key Requirements: - Arab... - Document Design: The successful candidate will have experience in creating structured, visually appealing documents that are easy to navigate and understand. - Process Efficiency: Understanding of the principles used to improve process efficiency is a plus. The document should be: - Designed to help improve process efficiency - Visually engaging - Structured and easy to digest - In Arabic language. It should be noted that we will need the final document to be editable by anyone, allowing for easy updates and revis...

I'm looking for a skilled and experienced copywriter to craft a compelling job cover letter for a General Manager position in the Travel & Accommodation industry. It should emphasize and detail my Leadership abilities, Customer service skills, and Financial management experience. Please infuse unique and personable language that will help me stand out against competing applicants. Ability to craft narrative stories and experiences around those skills will be highly regarded. Deep understanding of the hospitality business will also be a plus.