Xml catalog ipad jobs

We have setup an XML feed custom made + Merchant center but the products never appear when we expect them to for names of products for example, need someone to look through and find out the issue

...fluent Tamil-speaking developer with solid experience in Flutter to build a utility app. Ideally, the chosen freelancer should have: - Proficiency in building Flutter apps - Eye for intuitive UI/UX Key Job Requirements: - Create a utility application using Flutter - Utilize your native Tamil language proficiency for effective communication Key Application Features: - Product Catalog: An easy-to-navigate user interface for users to browse our offered services/products. - Shopping Cart: A smooth and seamless integration to enable users select and save products/services for eventual purchase. - Payment Gateway: Incorporation of a secure, trusted and user-friendly payment gateway for users to make purchases. Overall, I am seeking a dedicated, passionate an...

(ONLY FOR PROCREATE APP) Hi, I need to create videos for Meta Ads. The videos must illustrate my digital product: This product can only be used with PROCREATE app, and therefore ONLY WITH IPAD. The purpose of the videos is to show how the product works, so it must be a recording of yourself using the product on this app as they will be used to advertise my product. If you are interested write to me and I will give you more informations.

I'm in need of a web developer to create an interactive website for my physical product catalog. The website's main function is to display a catalog of physical products in a structured and appealing manner. However, I do not require an e-commerce functionality. Customers should be able to browse the products without the ability to purchase them directly from the website. Key features of the website: - Showcasing physical products: Your task will be to create a visually pleasing platform that displays the products effectively. - Search functionality: The website should include a search bar with filters for categories. This will enable users to easily find the products they are looking for. The ideal candidate should have experience in developing interactive websi...

I have a 500MB XML file that I need loaded into SQL across approximately 20 tables. I'm in need of a Python script to handle the transformation. The script will need to handle normalization of the data. Key requirements: - Develop a Python script to read the XML file and transform the data into a normalized structure across 20 tables. - You will need to create the SQL tables as part of the normalization process. - Experience with large data transformations and SQL is vital.

I need a proficient software developer to create a Windows software that can scan COM port on a local machine, read and analyse various data formats including CSV, JSON, and XML. This software should have key features such as: 1. Data Reading & Analysis - Extract data from COM port in CSV, JSON, and XML formats. 2. Custom Filtering - Provide an option to select specific data to be posted to RSS feed. Two main custom filtering options should be considered: - Filtering by data type - Filtering by keyword Ideally, the freelancer should have strong skills and experience in software development for Windows, with a keen understanding of data formats and RSS feeds. Deep knowledge of COM port operations will be a significant plus.

I'm in need of a skilled web developer to build a website for my wellness brand. The main goal of this platform is to facilitate the sale of products in the wellness industry. Key Features Required: - Product Catalog: This will be a showcase of the products available on the site. - Shopping Cart: Users should be able to add products to their cart for a seamless checkout experience. - Payment Gateway Integration: I need a reliable payment gateway to facilitate transactions on the website. Product Quantity: - I currently have less than 5 products that will be listed on the site. The website should be user-friendly, mobile-responsive, and have a clean design that will appeal to our target audience. Experience with e-commerce platforms and a portfolio of similar projects are ke...

Makeup color tone recognition, facial recognition, skin tone matching, virtual try-ons, AR Effects and Filters, Custom color Makeup selection, Subscription Services and Premium Features, Create Makeup Filter Catalog.

I'm looking for a proficient Shopify developer who can efficiently integrate a product catalog, a shopping cart, and a payment gateway into my website. My objective is to sell physical goods, and the website should reflect this mission. Your expertise in creating a Shopify site with a parallax scrolling theme would strongly benefit this project. I look forward to collaborating with a professional who understands my vision and can bring it to life on a user-friendly platform.

...fully operational Sign up for newsletter and coupon and add to customer list Downloadable email list of customers also advances email marketing plugin Ability send email coupons to customers Easy update backend - cms Payment gateway programmed with updatable processors PayPal, after pay, amazon pay and so on Save for later button Share Button Love button Place varies codes for tracking XML site map ability to collect phone number for text message marketing order status Product description options, size, color options, about, fabric, model description and so as needed Pairs with option example if your buying leggings then it would have a section stating "pairs with" up selling you may also like & customers also bought section Product sizing chart plug...

...use github with the developer who will be involved in the project. I want to work on an hourly basis. The software admin panel was made with filament and most of it is completed. For the front-end section, sections such as product listing, product detail, category (filtering), basket system, and order completion page should be made. Key functionalities should include: - A comprehensive product catalog to display and categorize the digital downloads we offer. - A reliable shopping cart system to improve customer experience and easy purchases. - A secure payment gateway integration to offer customers multiple options and ensure safe transactions. Having experience in creating similar eCommerce platforms or digital product sales software would be a bonus. Looking forward to produ...

I'm in need of a skilled Shopify developer to create an eCommerce website for my business. Key Elements: - The site requires a product catalog where I can easily add and manage physical products. - A user-friendly shopping cart is needed for seamless customer transactions. - The website needs a payment gateway integration for secure and efficient payment processing. - Besides physical products, services will also be listed on the website. Experience and Skills Required: - Proven experience in Shopify development, with a strong portfolio of successful eCommerce websites. - Proficiency in creating and managing product catalogs, shopping carts, and payment gateways. - Understanding of e-commerce best practices and security measures. - Ability to create a visually appealing and ...

I'm looking for a skilled professional to transmute product attributes into product variables for my electronics inventory. Particulars: - The attributes consist of Color, Size, Material, and Type. - The ultimate aim of this transformation is to make these variables usable for product filtering. Skills and Experience Required: - Experience with catalog management in the electronics industry. - Proficiency in data transformation. - Knowledge of product filtering mechanisms. Your ability to effectively execute this task will enhance our inventory management and streamline the user's product discovery process.

I'm seeking a proficient developer to construct a robust, elegant and classic eCommerce website on Shopify. The website should comfortably accommodate a product catalog of over 4000 products. Key Features Required: - A comprehensive product catalog that is easy to navigate. - Seamless shopping cart functionality. - A secure, reliable and user-friendly payment gateway. Preferred candidate should have extensive experience in developing high-performing eCommerce websites on Shopify, have a keen eye for classic design aesthetics, and a proven track record of integrating large product catalogs, shopping cart and payment gateways. Experts in User Experience (UX) and User Interface (UI) are highly desirable. Quick turnaround without compromising quality is a must.

I need a skilled web developer to create an E-commerce website for my business. The site should have intuitive and easy-to-use features, with a focus on a seamless shopping experience. Key Requirements: - Product Catalog: The website should be equipped with a user-friendly product catalog, which organizes products into categories and provides detailed information about each item. - Shopping Cart and Checkout: A secure, reliable shopping cart system is crucial. This should be capable of handling multiple products, applying discounts, and a straightforward checkout process. Additional Information: - Although the question wasn't answered, ideally the website should be scalable to accommodate a variety of product categories. Skills and Experience: - Proven track record ...

I am in need of an experienced WordPress developer to create a company website with a clear focus on our boat model catalog. This website will be primarily a showcase of our extensive line of boats, including boat specifications and high-resolution images for each model. I require the WordPress implementation, organization, and manual. We have the RT19 template online, that needs to be organised and tweaked to our requirements. A manual must be made so we have a guideline to make the content to the site specifications. Key website functionalities will include a precise search feature for easy navigation of our catalog, as well as social media integration for maximum exposure. We are looking for a labelling/category to navigate between the boat models and their respective ca...

I'm looking for a skilled Drupal developer to create a complete and fully working custom e-commerce portal with specific features and integrations. Key Requirements: - Product Catalog: The portal should support a product catalog with 100-500 items. - Shopping Cart: A fully functional shopping cart allowing users to add, edit, and remove items. - User Registration: User registration and login system for customers to track their orders and save their details securely. Specific Integrations: - Payment Gateway: Integration of a secure and reliable payment gateway to facilitate online transactions. - Shipping Provider: Integration with a reputable shipping provider to ensure timely and efficient delivery. - Social Media: Incorporation of social media functionalities to enh...

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...and Login: The website should allow for a clear and secure user registration process, and a login portal for returning users. Ideally, we would like to make use of intelligent ‘multi-step’ forms - with 1 sign-up question at a time, and we will have Different Access Levels: I require different access levels for clients and multi-user / admins. Admins should have the ability to manage the product catalog and edit other site content. - Payment Gateway Integration: The website must integrate a secure payment gateway to facilitate online transactions for our product. Your role will be to develop an efficient, user-friendly platform that promotes a seamless and intuitive experience for our B2B clients. The ideal candidate should have a good understanding of sustainable b...

...data engineer with a strong proficiency in Apache Kafka to work on a data integration project. The main objectives of this project are: - Integrate various data sources: structured (SQL database), semi-structured (XML, JSON), and unstructured (emails, documents) - Develop a robust data flow architecture - Ensure efficient data transmission across systems The perfect freelancer for this job should possess the following characteristics: - In-depth knowledge and practical expertise with Apache Kafka - Experience with integrating diverse data sources, such as SQL databases, XML, JSON and unstructured data (emails, documents) - Proven track record of successful data integration projects Feel free to schedule a meeting using this link.

As a dynamic company, we are eager to develop a cross-platform mobile application that seamlessly integrates our dealers and customers. We are specifically looking for: - Development on both iOS and Android platforms - User registration and login capabilities - A detailed and well-organized product catalog - A secure and functional shopping cart The app is required to be fully operational within a month, so we prioritize developers with a proven track record of meeting demanding timelines without sacrificing quality. Skillsets crucial to this project include proficiency in cross-platform mobile app development, competency in integrating user accounts and authentication, expertise in setting up eCommerce functions such as product catalogs and shopping carts, and ...

I'm in need of an experienced mobile app developer who can help me create a cross-platform e-commerce application for both iOS and Android. The app will be geared towards facilitating online shopping experiences for users. Key Features: - Product Catalog: The app should have a user-friendly interface that allows for easy browsing and searching of various products. - Shopping Cart: A critical component for any e-commerce app, the shopping cart feature should allow for item selection, quantity adjustment, and a smooth checkout process. - User Profiles: Users should be able to create and manage their profiles within the app, including personal details, order history, and saved payment methods. Ideal Skills and Experience: - Proficiency in mobile app development for iOS and Andro...

I'm seeking a skilled software developer to join our dynamic IT team. The ideal candidate will possess expertise in Perl, Python, and XML/XSLT, and should be familiar with MySQL. Responsibilities: Develop And Maintain Software Applications Using Perl, Python, XML, XSLT, And Database Technologies. Design And Implement Data Transformation Processes Using XML And XSLT. Write Efficient, Clean, And Reusable Code That Complies With Company Standards And Best Practices. Collaborate With Project Managers, Business Analysts, And Other Team Members To Understand The Requirements And Provide Technical Solutions. Perform Database Management Tasks, Including Design, Modifications, And Performance Tuning. Assist In The Integration Of New Software And Systems Into Existing Env...

I am seeking someone who can fix my conversion health on Pinterest. I have s Shopify store connected to Pinterest and it's pinging a conversion health error due to the following errors: Add To Cart We are detecting this event, but at least one parameter needs action. Product ID Too few of the Prod...have s Shopify store connected to Pinterest and it's pinging a conversion health error due to the following errors: Add To Cart We are detecting this event, but at least one parameter needs action. Product ID Too few of the Product IDs included in your Add to Cart events match the Product IDs in your Catalog. Checkout We are detecting this event, but at least one parameter needs action. Product ID Too few of the Product IDs included in your Checkout events match the Product ...

...development and integration to complete a medical management platform. Would prefer someone in DFW area. Key Tasks: - Finalizing the remaining 15-5% of the medical management platform. - Ensuring the platform has robust patient management program that has: appointment scheduling, video (e.g. Telehealth), patient billing and invoicing capabilities, claims submission to current clearing house using XML. - Integrating the platform with our current website(s). - Implementing user login and authentication. - Implementing secure Patient Health Information (PHI), aka "HIPAA" standards. - Incorporating functionality for users to pay their invoices within the platform. - Ensuring that the payment options include credit card, debit card, electronic checks, bank transfer, vemo, ...

I'm in need of a skilled Python/Java developer who can help me build a full-stack accounting web application. Key aspects of this project include: - **Main Feature:** The most crucial aspect of this accounting web application is its financial reporting capabilities. The financial data will be taken from Excel and XML. There will be financial reports (P&L, Balance Sheet, Cash Flow) and graphs to show the financial status. - **Technology Stack:** I require the project to be developed using Python/Java as the primary programming language. - **Database:** The application should be built using MongoDB for its databases. Ideal candidates should have: - Proficiency in Python/Java and MongoDB. - Experience in developing accounting or financial applications that include graphs ...

I need some help with coding a small iPadOS app that is only intended for internal testing/use using the SwiftUI language. The app needs all of its code reviewed (about 10 views) to make sure it is working appropriately and efficiently. I have a couple more features I would like the app to have, but don’t have the skill to incorporate them: - searching (CoreData represented in tables and lists) - filtering and sorting SwiftUI tables - generating pdf forms via a wizard or questionnaire that will ask the user for answers to specific questions for the form (e.g., placeholders in a form template: name, date, etc.) and an ability to share these generated pdfs from the share sheet - batch adding a set of reminders to a specific reminder list using EventKit (and being able to edit this li...

I am in need of a skilled Odoo developer to create an Odoo module. I have a node script that I want to convert to a Odoo Module. The node script create an XML from an invoice, sign the XML file (under XADES_BES standard), send it to a server and receive the files authorized by the server.

I need a Wordpress website with a custom T-shirt designer page and a stylish shop store. - T-Shirt Designer Page: - The primary function of this page is to enable my customers to create personalized designs. - I want it to be user-friendly and intuitive. - Stylish Shop Store: - I need a product catalog with filters, making it easy for customers to browse and find what they're looking for. - A shopping cart and checkout system are essential for a smooth purchasing process. Integrations: - The website will need to integrate with a payment gateway. - Additionally, it should integrate with a shipping service to handle order fulfillment efficiently. Ideal Skills: - Proficiency in Wordpress website design and development. - Experience in creating custo...

I need a skilled video editor who can turn our pet product catalog into engaging and fun Reels videos for Facebook and TikTok. Key Requirements: - Catalog: You will be provided with a range of pet gadgets as content for the videos. - Editing: You will not be involved in filming. You will focus on editing these pre-recorded clips into engaging videos in Reels format. - Style: The videos should have a fun and playful tone, so a sense of humor and creativity will be vital. - Elements: Your job will be to incorporate subtitles to enhance the videos and background music. -You will take videos from the internet of my products that have gone viral and cut and edit them to make new ones so the content is recycled. Ideal skills and experience: - Demonstrated video editing experien...

...two main features: 3D Room Visualization and Product Catalog. Key Features: - 3D Room Visualization: The app should allow basic rotation and zoom for the 3D room visualization feature. While advanced lighting and material customization are not necessary, the ability for users to visualize and interact with their designed rooms is crucial. - Product Catalog: The app should include a comprehensive product catalog to enable users to choose from a wide range of interior design elements and furniture. Ideal Skills and Experience: - Proficiency in app development for both iOS and Android platforms - Experience with 3D modeling and visualization - Understanding of UI/UX design and user interaction - Familiarity with e-commerce and product catalog integration in ap...

I require a competent and experienced freelancer to construct an informative catalog highlighting concrete construction materials. This catalog will be aimed to provide in-depth information and for selling purposes. Key specifications and features of this project: - Extensive knowledge of construction materials, especially voided slabs, filling soultions - Experience in catalog design and construction - Ability to convey complex information in an easy-to-understand manner - Strong research skills to ensure all necessary information concerning voided slabs. If you have a keen eye for detail and you're proficient in creating informative and visually appealing catalogs, this project is for you.

I'm looking for an experienced Magento 2.0 developer who can create a medium-sized B2C single vendor eCommerce website. The website must have the following features: • User registration and login: Customers should be able to create their own accounts and subsequently log in to access our services. • Product catalog and search: A system for listing products and a search function to allow customers to easily find what they're looking for. • Payment gateway integration: A seamless method for customers to make secure payments. The website should have the capabilities to handle moderate product variables and an average traffic flow seamlessly. Key Magento 2.0 functions to be incorporated include, but are not limited to: • Customizable designs: I wan...

I'm seeking a Shopify developer to create a new website with the aim of selling products online. Key features needed: - Product catalog: The store should be able to display a range of products in a structured and organized manner. - Inventory management: An efficient system to keep track of stock levels, and notify when items are running low. - Payment gateways: Capability to accept a variety of payment methods, providing a convenient shopping experience for customers. The website's main objective is to sell products, so it's important that the design aligns with these needs. I'm looking for a modern and minimalist theme to be applied. A clean and professional appearance is crucial for establishing trust with potential customers. The ideal candidate for this...

I'm looking for a professional web designer to craft an engaging and sleek website for my sauna distributor company. The website should not be based on WordPress, but built for fast loading and easy navigation. Key Functionalities: - A general product catalog: The website should have a general minimalist product catalog with mentioning sauna models, sauna heaters, accessories and steam generators. - CMS for self-management: I'll need the ability to easily update and manage the content, so a simple and user-friendly Content Management System (CMS) is essential. Ideal Skills: - Proficiency in modern, sleek web design. - Experience in creating product catalogs with detailed pages. - Expertise in non-WordPress website development. - Prior experience implementing sel...

...Laravel, React, website, and mobile app development. Your main responsibility will be developing and improving our e-commerce website and mobile app proojects. Requirements: - Proficient in PHP, JavaScript, Laravel, and React. - Experience in both Website and Mobile App development. - Background in e-commerce platforms. - Demonstrate proven experience in similar roles. Key Tasks: - Product Catalog Management: You must be skilled in creating a user-friendly interface to display our products. - Shopping Cart Functionality: Create a seamless shopping experience for our users. - Payment Integration: Safely and securely integrate online payment systems into the platform. - Order Tracking: Implement a system that allows customers to track their orders. - Customer Review Interface: ...

...Laravel, React, website, and mobile app development. Your main responsibility will be developing and improving our e-commerce website and mobile app proojects. Requirements: - Proficient in PHP, JavaScript, Laravel, and React. - Experience in both Website and Mobile App development. - Background in e-commerce platforms. - Demonstrate proven experience in similar roles. Key Tasks: - Product Catalog Management: You must be skilled in creating a user-friendly interface to display our products. - Shopping Cart Functionality: Create a seamless shopping experience for our users. - Payment Integration: Safely and securely integrate online payment systems into the platform. - Order Tracking: Implement a system that allows customers to track their orders. - Customer Review Interface: ...

... - Proficiency in iOS application development. - A strong understanding of cloud-based data storage systems and their security implications. - Familiarity with the unique requirements of wound care providers concerning patient data and treatment documentation. Building an EMR system for wound care providers to operate within patient homes involves several key features: - Mobile device (iPhone/iPad) capability for image capture and AI measurement analysis. - Tools for quick care assessment documentation, including reviews, physical exams, wound care procedures, and supply orders. - Integration with billing systems for seamless financial management. - Instant progress notes creation with image attachments for communication with primary care providers. - Incorporation of features ...

...Notifications: The app must notify users of prayer times. - Qibla Direction Finder: It should include a reliable Qibla direction finder. - Quran Recitation: The app should have a feature for users to listen to Quranic verses. - Tasbeeh: Implement a digital version of the tasbeeh for users. - E-Commerce: I'd like the app to include e-commerce functionality with the following features: - Product Catalog: A user-friendly display of available products. - Shopping Cart: Users should be able to add items to their cart. - Payment Gateway Integration: Secure integration of a payment gateway for transactions. Target Platforms: - The app should be developed for both iOS and Android platforms. Ideal Skills: - Proficiency in app development for both iOS and Android platforms....

I'm in need of an expert Android developer who can create a sleek, small, and round button in XML for my application. The button should have the following features: - The button should be fully clickable and functional. - It should change color upon being clicked. - The button should also display text on hover. The ideal candidate for this project should have: - Extensive experience with Android XML design. - A strong understanding of UI/UX principles. - Proficiency in creating interactive elements. Please respond with examples of your previous work in Android design, particularly with buttons, and any relevant experience you have.

Our website is: [Enter URL] We will provide the following information as needed: - Facebook Business Manager access - Facebook Pixel and Product Catalog assets - Website administrative access including tag managers & online platforms

At the moment, I am using php 8.2.18 extension in azure and got ...got an error as follows: [06-May-2024 10:38:38 UTC] PHP Warning: PHP Startup: xmlrpc: Unable to initialize module Module compiled with module API=20210902 PHP compiled with module API=20220829 These options need to match Azure linux containers are using php 8.2.17. I need a skilled developer to build the deprecated XML-RPC extension () to work with PHP 8.2.17 in azure linux containers. Key Responsibilities: - build the XML-RPC extension for PHP 8.2.17 - Ensure the extension is robust and secure Please include examples of past work in your application. Ideal Skills: - Experience in creating PHP extensions - Worked with azure linux containers - Honest and reliable.

I need an API expert who can help me set up and integrate a Weather XML feed within a Wordpress site. The feed will provide real-time weather information to my site visitors. Unfortunately, I missed answering some of the questions related to the source of the feed, how it should be displayed on the site, and how frequently it should be updated. Key requirements for this project include: - Setting up the API integration with the chosen weather service provider - Ensuring the data is accurately displayed on the site - Implementing a suitable update frequency for the weather information It would be a plus if the freelancer could also assist in: - Designing a visually appealing layout for the weather information - Making suggestions on how to improve the overall user experience on th...

As the owner of an Ayurvedic beauty wellness company, I'm looking for someone to launch and manage my brand's YouTube channel. The intention is to promote my catalog of herbal products, hence increasing sales while also educating both male and female audiences about their benefits. Here's what I'm looking for: - Experience in launching and managing YouTube channels, particularly in the health and wellness sector. - Skills in content creation: I plan to post a variety of content including product demonstrations, educational clips about Ayurvedic and herbal wellness products, and interviews with industry experts. - Demonstrated ability to target and engage both male and female audiences with content. - An understanding of YouTube's algorithm and how to optimi...

I am looking for a talented digital artist, specifically in graphic design, to work on my marketing materials. The primary focus of this project is the design of a product catalog. Key Responsibilities: - Create a visually appealing and professional product catalog. - Implement graphic design elements that are consistent with our brand identity. The ideal candidate should: - Have a strong understanding of marketing materials design. - Be proficient in graphic design, specifically in the realm of product catalogs. - Be able to create content that is attractive, engaging and aligned with our brand. Please include your portfolio, especially highlighting your previous experience in creating product catalogs or similar marketing materials. Thank you.

I'm looking for a skilled website developer to create an e-commerce platform for my business. Key Requirements: - Develop an e-commerce website: I need a site that's user-friendly, visually appealing, and conducive to online shopping. - Product Integration: I'll have a small catalog of less than 50 products to sell, so the site needs to handle this smoothly. - Payment Processing: While I'm undecided on specific methods, I will expect to integrate common payment processing gateways. Ideal Skills and Experience: - Proficiency in e-commerce development. - Experience in integrating various payment methods. - Ability to design and develop a clean, modern, and responsive e-commerce site. - Prior experience with small to medium-sized product catalogs. - A solid under...

I require a proficient database administrator to import large XML file dumps (3gb, 20gb, and potentially larger sizes) into a MySQL database. The purpose of this task is database migration. The task will involve: - Handling entire data of moderately complex XML files, including several nested tags. - Ensuring the conversion captures all data comprehensively and accurately for smooth database operation. Ideal Skills and Experience: - Strong proficiency in MySQL and XML - Robust experience with database migration - Background in handling complex file structures - Demonstrated ability to manage large datasets.

Read messages on WhatsApp, parse selected message for specific data and then update a website page with scraped information. This needs to be for Windows 11 and, if possible, quote also for apple apps (iPhone and iPad). Must include include piracy protection for windows and must be able to publish on apple store. It will have a free trial period (3 day at the moment). I do not expect more than 200 users max but they all know each other.

...them. - Order Management System: The platform should have an efficient system for managing orders. This should include order tracking, inventory management, and a clear order history. - Communication Tools: A robust set of communication tools must be integrated into the platform. This should allow seamless communication between suppliers and customers. - Live Product Catalog: The platform will also require a live product catalog feature. This feature should provide real-time information on available products, pricing, etc. In addition to these features, the procurement process on this platform will support direct purchasing. This means there will be no need for bidding or negotiation. The platform will operate on a direct purchase basis. However, the platform will also h...

I'm looking for a skilled developer who can create a web application that can read data from multiple sources like Excel files, XML files, and APIs, and then match, aggregate, and save this data to a database. Requirements: - The web app should be able to read data from Excel files, XML files, and APIs. - The application should have the capability to match and aggregate data from these different sources based on specific fields, data types, and unique identifiers. - The end goal of the data matching and aggregation is to save the data into a database. Ideal candidate should: - Have experience in developing web applications that work with various data sources - Be proficient in database management and data aggregation techniques - Be able to write clean and maintainable...