Senior javascript developer job description jobs

I'm looking for a skilled React developer to join my project team. We are working to develop a single page application and your role will be crucial in achieving this goal. Key Tasks: - Creating new components: You will be responsible for building new components that align with our project requirements and design. - Debugging and fixing existing code: Part of your tasks will involve troubleshooting and resolving any issues that arise within the existing codebase. - Performance optimization: It's essential that you have a strong understanding of React and can help optimize the performance of our application. The scope of this project is the development of a single page application, and a key focus will be on ensuring a responsive design. This is crucial to enhance user ex...

As a business owner, I am in need of an Android developer who can construct a ride booking application. This application's main feature will be user login, which would primarily cater to Riders and Drivers. Key Requirements: - Develop a user login feature - Design the application for two types of users: Riders and Drivers Ideal Experience and Skills: - Previous experience in building ride-booking or similar applications - Proficiency in Android development - Deep understanding of user login functionalities - Knowledge in providing intricate personalized content. The role would require significant contributions in the planning, designing, and execution of the complex user login feature. This role is best suited for a developer who is well equipped with a solid techn...

I'm looking for a professional who can create job ad templates for me in both Word and PDF formats. 6 ads to copy paste to 6 templates I can share few samples you can use the same to design. All contents, logos, images & similar editable formats will be shared. Will award for the lowest price with reviews.

I'm seeking a proficient fullstack developer with a deep understanding of HTML/CSS/JavaScript and React. The primary mission will be to assist in building a progressive web app. Key Responsibilities: - Craft high-quality code for my progressive web app - Facilitate, implement, and manage React-centric tasks Skills and Experience: - Comprehensive understanding of HTML/CSS/JavaScript - Proven experience with React - Previous work with progressive web apps is a plus

My Python script is intended to scrape specific Telegram groups, but it's not functioning as expected. I need a developer to address these issues, described below. - **Issue Description**: The script is crashing when scraping certain Telegram groups, which is likely due to the fact that it's not respecting selections. The error presented is “ AttributeError: 'MessageMediaWebPage' object has no attribute 'document'” I can provide the script if you want to check how it’s working. I am open to a whole new script being made. So long as it functions in a similar way. If not familiar you can view telethon api - **Expected Behavior**: The scraping script is supposed to collect data that matches specific regex patterns. This means...

I'm looking for a skilled casino games developer based in Jaipur, India. I have a preference for face-to-face communication, so I'd prefer to work with someone in my local area. The games I'm looking to develop include Slot machines, Poker games, and Roulette games. Key Requirements: - Proficiency in developing casino games, specifically Slot machines, Poker games, and Roulette games - Experience in developing for multiple platforms (Mobile devices, Desktop, Web browsers) - Ability to communicate effectively and work efficiently in a face-to-face manner.

I am in need of a skilled WordPress developer proficient in Gutenberg blocks. Key Requirements: - You should be able to create and customize Gutenberg blocks within WordPress, adhering to our specific design and layout requirements. - We expect these Gutenberg blocks to offer interactive features, like sliders and tabs, and incorporate dynamic content such as latest posts and user data. - Additionally, you will be expected to include a variety of layout and styling options, like spacing and color variations. - Please note that we have a specific design in mind for these blocks, so attention to detail and the ability to follow our design specifications is crucial for this project. Ideal Skills and Experience: - Strong knowledge and experience with WordPress, especially in dev...

As the orchestrator of this project, I require a skilled PHP developer to perform a multifaceted role in our team. Tasks will predominantly revolve around backend development, website maintenance, and database management. Here are some important points: - You'll be diving into an existing project, warranting the ability to familiarize with previously written codes quickly. - I particularly require proficiency in CodeIgniter for backend development. - Your roles will include website upkeep and backend support, ensuring optimal site performance and justifying user satisfaction. - In addition to these, you will be handling database management, ensuring secure and efficient data transactions. Ideal skills and experience: - Solid experience in PHP development (especially in Code...

I'm looking for a seasoned NextJs & React developer to craft a high-performance, single-page website for desktop and mobile. Your expertise in responsive design is crucial to ensure seamless, optimal performance on both. Note:- Please check figma of layout required below. The key features I require include: - Fast loading - Google page speed check has to be 100% for both desktop and mobile - The page is image heavy, hence has to lazy load images correctly - Menu has drop down images heavy. Accordingly loading should be only on mouse over and not interfere with rest of page load. - First part

I am in need of an experienced website developer with over 10 years of professional coding experience.

...photos Users can take a picture of an item to search for it in the database Display of item details, including description, price, availability, and seller information Collection Tracking: Users can add items to their collection Tracking collections by character, editions, type of item, and more Displaying the current market value of items based on selling prices Detailed Product Pages: Comprehensive price history and 12-month history of trade range, sales, price, average sale price, last sales, current sales, current bids, and current ask price Product details including origin, edition size, release date, SKU, original price, people owning, wanting, trading, and selling Description about the item Section for user comments Similar items based on series, character, locati...

I want to build custom chromium browser bundled with my webapp. We dont want to use any framework like electrom due to business decisions. Below are the requirements: 1. Bundle webapp with custom chromium build. When the browser is opened then the webapp should be opened by default 2. Remove chromium tabs and url bar. these are not needed since we always open our webapp

I'm looking for a skilled developer to duplicate the design and functionality of a website from TypeScript, JavaScript, HTML, and CSS to a Python-based system. The website currently allows users to input a URL for evaluation on its ACT and WCAG compliance. Once evaluated, it highlights any errors and provides recommendations for improvement. The source code is provided. Key Requirements: - Recreate user input URL evaluation - ACT and WCAG compliance checking - Error highlighting - Recommendation provision Design Changes: - Redesign of the website's layout - Improvements to the user interface Design Preferences: - Clean and minimalist design - Modern and trendy elements The source code is available for reference. Ideal candidates should have a solid understanding...

I'm looking for an experienced firmware developer specializing in STM32 microcontrollers. I already have arduino Mega tested code which i need to convert into stm32 family Key Project Details: - Specific STM32 Model: The project will involve firmware development for a specific STM32 microcontroller model. - Application/Use Case: While not specified, the project likely involves a real-world application within the realm of consumer electronics, industrial automation, or wearable devices. Skills & Experience: - Prior experience with STM32 microcontrollers is essential. - Proficiency in utilizing various communication protocols (e.g. UART, SPI) and integrating sensors would be a plus. - Familiarity with power management techniques is highly desirable. - Experience with the ...

We are Hey Swarm, an innovative platform that revolutionizes how businesses visualize operations by integrating AI swarms with 8-bit characters. We're seeking an experienced game developer who can bring our design concepts to life, creating a seamless and engaging front end for both web and mobile platforms. Must be developed using Phaser or Construct. Then I have this basic UI that also needs to be connected. We have an API/Backend developed already. The developer needs to be able to connect it. **Project Scope:** - Develop the front-end architecture for our platform, optimized for both web and mobile devices. - Ensure integration of visual content with live API connections for real-time data visualization. - Collaborate closely with our UX/UI designers t...

I'm in need of a skilled web programmer proficient in HTML/CSS, JavaScript, and PHP to create a comprehensive work tracking portal. I have a very rough semi functional example site attached. This will be hosted on a private server with vpn access from each user so security is not a extreame concern. key functions basic login system allow users to enter daily work time with some notes ; I would like them to be able to edit them after allow users to see a list of all open jobs and be able to click on them to open them and edit as needed client management - need to be able to search existing clients or add new ones as well as view any jobs open or closed for the client. job photo uploads need to be optimized for mobile phones / tablets I would also like to ad...

I'm on the hunt for a skillful coder proficient in web scraping, specifically for Website A. The goal of this project is for obtaining valuable and significant data for analysis, competitive intelligence, and price comparison. While there's no explicit mention of the type of data to be scraped, I anticipate that a capable offering will cater to a variety of needs such as: - Text content - Image content - Metadata Ideal Experience and Skills: - Proven experience with web scraping - High proficiency in handling large data sets - Comfort in navigating Website A - Ability to collect comprehensive data categories Looking forward to a potential collaboration to achieve this goal!

I'm in need of a Flutter Developer to assist with updating our existing Art Prizes app for both iOS and Android. We've made additions to the underlying .NET solution and now require integration of new pages and features. It's crucial that you have a solid understanding of Flutter as well as knowledge on integrating APIs. Previous experience in updating existing apps and implementing push notifications is highly desired. If you don't have a rating of 4.9 or higher I won't be contacting you. You will have a formal process for versioning the iterations and you will have inhouse testing available. If you deliver an initial solution that is full of bugs we won't continue working with you. First deliverable will be the IOS version FOLLOWED by the android ...

I'm looking for a skilled web developer who can assist with creating a website and landing page using , , and cloudfunnels from yournextfunnel.in. Key Requirements: - The main goal of the website and landing page is to facilitate automated leads and promote our products/services. - Specific features needed are a contact form and social media integration. I need this project completed urgently, so speed and efficiency are a must. I am reselling services so content will be brought in from 2 websites and will require 3 landing pages and social media integration Ideal Skills: - Proficiency with , , and cloudfunnels - Strong web development skills - Experience in creating lead generating landing pages - Ability to incorporate contact forms and social

I'm in need of a talented elementor website designer with the knowledge of Javascript and jquery, css3 and html who can transform a Figma prototype into a visually appealing and functional business website. Key Requirements: - Transform a Figma prototype into a Pixel perfect designed website - Ensure design is responsive and 100% similar to the figma Ideal Skills: - Experienced in designing business websites - Skilled in Elementor - Strong knowledge of JS, JQuery, CSS3, HTML, Elementor & PHP - Excellent communication and collaboration skills Check out the prototype from this link:

Mit umfangreicher Erfahrung in der Verkaufsbranche suche ich einen proaktiven Vertriebsmitarbeiter, der sich hauptsächlich auf den B2B-Markt konzentriert. Der ideale Kandidat sollte Direktvertrieb und Telemarketing als Hauptvertriebskanäle priorisieren. Wesentliche Aufgaben: - Durchführung von Direktvertriebsaktivitäten an potenzielle B2B-Kunden - Proaktives Tätigen von ausgehenden Anrufen im Rahmen des Telemarketings - Aufbau und Pflege einer starken Vertriebspipeline - Hervorragender Kundenservice zur Verbesserung der Kundenbeziehungen - Erreichen und Übertreffen von Verkaufszielen und KPIs Erforderliche Fähigkeiten und Erfahrungen: - Umfangreiche Erfahrung und nachgewiesene Erfolge im Vertrieb, insbesondere im B2B-Bereich - Starkes Verständnis d...

I'm seeking experienced UML and OCL modelers to conceptualize my full system information and transcribe the model for the USE (.use) tool. Key tasks include: - Conceptualize the entire system model using UML and OCL - Transcribe the model for USE tool - Create necessary UML diagrams: Class Diagram, Use Case Diagram, Sequence Diagram Ideal skills would include expertise in UML, OCL, and system modeling. Familiarity with the USE tool is essential.

I'm in need of an expert PineScript developer to assist with a trading project. While the specifics of the project are yet to be defined, I'm looking for someone with a strong background in PineScript development. Ideal Skills and Experience: - Proficient in PineScript - Previous experience in developing trading indicators or strategies is a plus - Familiarity with TradingView is preferred If you're well-versed in PineScript, please feel free to reach out with your experience and we can discuss how we can move forward.

I need a versatile professional to create a highly effective landing page for my three professional services businesses. The purpose of this landing page is primarily to promote my services. Key Features: - Dynamic call to action buttons that intrigue potential clients - Genuine testimonials that reinforce credibility - Detailed description of the services provided Freelancer's skills should include: - Proven experience in landing page design - Deep understanding of professional services industry - Proficient in creating engaging Call to Action buttons - Experience in setting up functional testimonials - Ability to portray detailed and clear service descriptions.

I'm seeking a team of senior frontend developers who are proficient in React.js to build a new website from scratch. Unfortunately, details regarding specific functionalities were not provided at this time. However, the ideal candidates will have: - Extensive experience in website development, especially in React.js - Demonstrable proficiency in building various kinds of sites, considering I may require varied functionalities - Strong problem-solving skills and innovation as specific website features are yet to be decided. Please ensure you detail your experience with React.js and any previous website projects you've managed in your bid.

I'm seeking a skilled Angular developer with experience in design and CTA implementation to assist in completing a Marketplace website. Key Requirements: - Angular Expertise: Proficiency in Angular is essential for this project. You should have significant experience working with this technology, and be able to demonstrate your skills with examples. - Design Skills: While we're using a pre-designed template, we require someone with a good eye for design to make small modifications to ensure the site meets our standards. - CTA Implementation: Experience in implementing effective Call-to-Actions is a must. Your input will be crucial in ensuring our users take the desired actions. - Marketplace Experience: If you have experience working on marketplace websites, that would b...

I'm in need of an experienced Node.js backend developer who can build a robust REST API. The ideal candidate should be proficient in MySQL, and have experience in user authentication, data retrieval, and data modification. Key Requirements: - Develop User Authentication: The API should include secure user authentication functionality. - Implement Data Retrieval: The API must be able to retrieve data from MySQL database as needed. - Data Modification Capability: The API should also support updating and deleting data in the database. Additional Needs: - Third-Party Integrations: The API will need to integrate with a payment processing system and also be able to send WhatsApp messages. If you have a strong background in Node.js, MySQL, and building REST APIs, I'd like to ...

I need an expert to establish my eBay marketplace for selling individua...establish my eBay marketplace for selling individual bottles of syrup for frozen drinks. The ideal freelancer should have experience in setting up and optimizing product listings on eBay, especially within the drink or food industry. Based in Brisbane Queensland Australia. Selling into states on Queensland, New South Wales, Victoria mainly. Key Responsibilities: - Create an inviting and accurate description of the product - Set up an efficient shipping and handling process - Handle customer inquiries and concerns. Experience: - Setting up eBay stores - Food and beverage industry knowledge preferred - Exceptional customer service skills. Have a sales/product history and profile from previous business Owner ...

...comprehensive information about the venue - Match timings should be included - Broadcast details for each match should be provided Ideal Skills: - Proficiency in Google Sheets - Knowledge of cricket and its various tournaments - Attention to detail to ensure that all necessary information is included - Time management skills to complete the project in a timely manner more details--- ### Task Description: Google Sheets Data Entry Expert for Cricket Schedule **Objective:** Create a comprehensive cricket schedule for the English summer season using Google Sheets. The schedule should include fixtures for various tournaments and teams, organized by date and start time. **Scope:** The schedule should cover the following: 1. England Men 2. England Women 3. England Disability 4. Vital...

I am looking to launch a marketing business that offers SEO services for our clients, and I need an SEO specialist to do this, continuously, and for all website platforms. Key aspects of the project include: - Enhancing website visibility: I want my client's websites to be easily discovered by potential customers. - Keyword optimization: Understanding common search terms in my clients industry's and incorporating these into their sites. - Competitive analysis: Researching my clients competitors' SEO strategies and identifying opportunities for them to stand out. - White Hat tactics only - White label preferred - This will be an ongoing project, that I am looking for a quote only right now. - I need a quote for each of the following clients that I would bring to the pictur...

I need a new online form integrated into my website specifically for ordering physical products. The form will serve as a basic order fo...digital products or services. - It should be designed in a way that is user-friendly and easy to navigate. - The form should work seamlessly, with no bugs or technical issues. - The form will not include any payment integration as I will be handling payments separately at this time. Ideal Skills - Web development experience, especially with forms and e-commerce. - Proficiency in HTML, CSS, and JavaScript. - Experience with integrating forms into websites. - Attention to detail to ensure a bug-free experience for users. Wordpress experience Please provide examples of similar work you've completed, and a brief overview of your approach t...

I need an Excel expert to create a comprehensive spreadsheet to track and calculate project costs, revenues, expenses, and profits. Specific calculations required include sum, average, percentage. The Excel sheet should track the following: - Project cost - Project revenue - Project expenses - Percentage of account receivable - Percentage of account paid - How the client paid after tax - Description for the costs - Percentage of the costs - Percentage of the profit before tax - Percentage of account receivable before tax - Date of payment The data presentation in the spreadsheet should be in the form of tables and graphs. Experience with financial data analysis and management is vital. Understanding of cost and profit calculations, as well as capability to implement advanced Ex...

I need a talented developer to build me a cloud-based SaaS ERP system with specific features and integrations. - The system should include essential functions like Inventory Management, Financial Management, and Customer Relationship Management. - It should be customizable at a basic level to allow for changes such as colors and the addition of a logo. - In terms of integrations, I require the system to connect seamlessly with CRM, E-commerce platforms, and Payment Gateways. Ideal candidates should have a strong background in developing SaaS ERP systems and possess the necessary technical skills to integrate different software and platforms. A solid understanding of inventory management, financial tracking, and CRM systems would be highly beneficial for this project.

I am in need of a skilled WordPress developer to assist with finalizing an under-construction corporate professional website. It requires theme customization and overall completion. Key Responsibilities: - Tailoring the existing WordPress theme to match a corporate professional aesthetic. - Create a Custumızed search bar. - Add Properties features. Skills and Experience: - Excellent ability in WordPress theme customization. Elementor Pro - Proven track record working on corporate professional websites.(Real Estate) - Solid knowledge in Woo and Payment methods. - Detail oriented with a keen eye for design. Anticipating your reliable proposals. Thank you.

Project Description: We are seeking a talented designer to create a visually stunning, engaging, and informative page that highlights our distinctive vanilla cultivation and preparation process. The page should take viewers on an immersive journey through our vanilla's lifecycle, from the lush fields of Maroantsetra, Madagascar to the final crafting of our premium product. The designer should use the attached infographic, process flow diagram, and vanilla cut styling guide as visual references to creat our own infographic ou design steps shaping the page's content and design. These resources provide comprehensive details on our process, including key steps, techniques, timing, and quality control measures. Project Goal: The ultimate goal is to create a page that educate...

I'm looking for a skilled developer who can create a unique shopping experience marketplace application. The application should be versatile and functional on both web and mobile (iOS/Android). Key Features: - The primary focus of the application is to provide seamless product search filter options & a unique and new way of shopping with AI ,AR Features etc. the interface should be user-friendly and efficient - The Application will have a dashboard for sellers, for buyers and for us - The whole idea is to create friends while shopping so the application will have a community section where three will be soon million of members active where everyone can communicate and make friendships Payment Integration: - The application must be able to accept UPI payments and transa...

I'm in need of an experienced Ruby on Rails developer to help get our social networking app up and running as soon as possible. The app will essentially be a Facebook-like platform with key features including user profiles, timelines, messaging, chat functionality, and photo/video sharing. Ideal Skills: - Strong proficiency in Ruby and its popular framework, Rails - Experience building social networking apps - Proficient in implementing chat and messaging features - Knowledge of photo and video sharing integrations The selected candidate will be expected to hit the ground running, working closely with me to ensure the app is launched on time while meeting the specified requirements. If you're a skilled Ruby on Rails developer and can commit to this urgent project,...

((After reading the important thing, message me.)) 1) My budget is final, I won't go above $1. I have some requirements; if you can fulfill them, that's good. First, message me if you can do this job for $25. If not, please don't message me 2) create the first section on any local host. Once it’s ready, show it to me. If the functionality is working correctly, I will give you the login details, and you can then transfer it there and continue the work. and I will also award you the job at that time. 3) The product must be customizable with text and adornments that the customer chooses. The most important part is that the customization choices will show on the picture in real time. In other words, the picture will change each time a customization is added....

--- ### Job Title: Excel Sheet Creation for Job Tracking and Payment Calculation **Description:** I need a custom Excel sheet to help me track jobs completed by my installers, including details about each job, such as dates, customer information, and payments. The sheet should be able to automatically calculate the total number of jobs done and the total payment owed to each installer. **Requirements:** 1. **Job Tracking:** - Columns for the date each job was completed. - Columns for the job details including customer address and account number. - Columns for the installer assigned to the job. 2. **Payment Calculation:** - Ability to input the payment rate per job. - Automatic calculation of the total number ...

I'm in need of a website similar to , built on WordPress. The website should come with a user-friendl...Preferences**: Incorporate a custom logo and colors, ensuring a modern and clean design. - **Training and Support**: I would like a one-on-one Zoom session for understanding the console's full capabilities and how to use them efficiently. Ideal skills and experience: - Proficient in WordPress development - Experience in creating custom WordPress themes - Strong knowledge of PHP, HTML, CSS, and JavaScript - Familiarity with user-friendly content management systems - Excellent communication skills for the Zoom meeting and ongoing support. Please provide examples of similar projects you've completed and mention if you have experience in conducting user training.

I'm on the lookout for an experienced Ionic developer who can seamlessly integrate survey APIs into my app (survey form). In your application, please highlight your relevant experience in similar work.

### Project Name: Optimize Scrap Metal Supply Chain ### Project Description: I am from Turkey and need a top-notch scrap metal consultant to streamline our supply chain. The consultant will work online as a freelancer and focus on: - **Metal Sourcing**: Finding reliable suppliers, getting total prices, and negotiating deals. - **Logistics**: Finding transportation solutions and ensuring CIF delivery to Turkey. Ideal skills include in-depth knowledge of the scrap metal industry, excellent logistics management, superior negotiation abilities, and strong communication skills. --- Feel free to use this refined version in your freelancer project description.

Hi, I am setting up a SaaS platform that needs someone who is a full-stack developer that leans frontend to help us finish the frontend of a solution, but also can work on some minor backend work with Generative AI (GPT 3.5 with RAG) to help empower some responses on the frontend.

...understand - Ensure the final schematics are files that can be editable in AutoCAD Ideal skills and experience for this job include: - Proficiency in AutoCAD electronic design software - Strong understanding of electrical schematics and diagrams - Attention to detail to accurately represent the original hand-drawn schematics - Previous experience in similar projects is a plus I'm looking for a freelancer who can deliver high-quality work within a reasonable timeframe. Please include samples of similar projects in your bid. I expect there will be at least 1 feedback cycle where I redline what you provide, and you fix it. If you have read this entire project description indicate to me in your response that you have read the whole thing by using the word "Animal...

I'm in need of an experienced WordPress developer who can help me create a captivating logo preloader animation for my website. This animation should be a loading bar type, and it will also incorporate my logo. Key Requirements: - The animation should be of a loading bar type. - The logo should be animated in the style of "writing model". Ideal Skills and Experience: - Strong proficiency in WordPress and web animation. - Previous experience in creating custom logo preloader animations. - Knowledge of implementing animations using CSS, JavaScript, or other relevant tools. - Creativity to bring the "writing model" style to life in the logo animation. - Ability to deliver high-quality work within a reasonable timeframe.

I need one Flask developer for some easy tasks now I need work for long term I need work from Pakistan or Indian Coder

As a creator focusing on educational content, I'm looking to further optimize and...Strategy: Suggesting and implementing strategies to maintain high visibility and attract more subscribers, taking into consideration the educational nature of my content. The project might involve: - Keyword Optimization: Identifying and targeting relevant keywords that could further boost the channel's visibility. - Metadata Review: A thorough review of the metadata used, including the title, description, and tags, to ensure they are optimized for search. - Audience Engagement: Strategies to maintain high engagement levels among the audience to encourage more subscriptions. If you have a proven track record of optimizing YouTube channels and increasing subscriber counts, I'd be kee...

I'm currently in need of an expert software developer to assist with maintaining and updating existing software initially on a hourly basis but i would consider full time as we build relations. This position requires someone proficient in Java, C#, HTML, CSS, and PHP (codeignitor). Key Responsibilities: - Maintaining and updating the existing software as required - Debugging and troubleshooting issues - Collaborating with other team members Ideal Skills: - Strong proficiency in Java, C#, and PHP - Previous experience in software maintenance and updating - Excellent problem-solving skills - Ability to work full-time and communicate effectively - Experience working in a team environment I'm looking for an individual who is reliable, skilled and able to commit to a full...

I am in need of an AI developer who can help me with BUILDING AN APP FOR AMERICAN PROMUNCOATION TRAINING a natural language processing project specifically centered around speaker identification. Key Responsibilities: - create an app with data ( speech exercises and text) - integrate AI to correct speakers in real time! I'm looking for a professional with: - Proven experience in natural language processing, particularly in speaker identification. - Strong skills in machine learning, particularly in implementing speech recognition systems. - Excellent communication skills to understand and translate my needs into a functional and user-friendly system.

Seeking a skilled web developer to improve and update our existing Django-based website. The project involves: Menu Bar: Update and ensure consistency with multilingual support (Swedish, Danish, English). Contact Form: Implement validation, translations, CAPTCHA, and backend management. Multilanguage Support: Set up inputs for Swedish, Danish, and English without auto-translation. Articles and Blogs: Improve layout, image handling, and formatting consistency. Search Function: Enhance search to include titles and body text. Main Picture: Add functionality to change the main picture with size guidelines. Home and About Pages: Ensure consistent formatting and editable content. DNS and Email Setup: Correct domain pointers and enable email functionality on server. Proven experience with...