React node js mvc työt

Etsitkö merkityksellistä työtä tai tunn...tunnetko jonkun joka etsii? Etsimme ohjelmoijaa toteuttamaan yheiskunnalliselle palvelullemme mobiiliapplikaatiota. Mikäli sinua kiinnostaa sosiaalinen ja ekologinen vastuullisuus yritystoiminnassa ja arvoihisi kuuluvat tasa-arvo ja ihmisten ja eläinten oikeudet, ole yhteydessä meihin! Tehtävä: - Vastuu palvelun mobiiliapplikaation toteutuksesta Vaatimukset: - Kokemusta iOS-appien toteutuksesta React Nativella - Kyky työskennellä itsenäisesti applikaatioprojektin toteutuksen kaikilla osa-alueilla - Koska työskentelisit ainoana kehittäjänä, on oma-aloitteinen asenne ja kyky koordinoida omaa työtä välttämätöntä Projekti tule...

Moikka, huomasin profiilisi ja ajattelin kysyä olisiko sinulla kiinnostusta tehdä etätyönä PHP/MySQL/JS koodia erilaisiin projekteihin jotka on tehty Yii Frameworkin päälle? Yst. Terv. Mika Saarinen Puh. 040 480 6791 mika@

I need help setting up my nextjs website's cookie consent to be compatible with Google Consent v3. Key Requirements: - Write codes to setup cookie consent with google tag manager. - Ensure the cookie consent setup is specifically for Google Consent v3 compatibility. - Make sure the setup with Google tag manager. Ideal Skills: - Next js. - Familiarity with Google Consent Mode v3.

I'm in need of a skilled developer with strong experience in NodeJS, React, and Next/NestJS. The project I have in mind is a custom web application that will require: - Search Functionality: The application will have a search feature that allows users to find specific content or items efficiently. This will require robust search algorithms and user-friendly interfaces. - Payment Gateway Integration: The application needs to support payment processing. You'll need to integrate a payment gateway to handle transactions securely and seamlessly. Your experience in SQL will also be valuable to ensure efficient data management and integration with the web application. Please provide examples of your past work that demonstrate your expertise in these areas. I'm looking fo...

We are looking for a programmer to create the search engine for our magento 2.4.6 with Proto Theme website using A...website using Algolia search. The programmer has to implement the algolia search engine using his own code following the guidelines published by Aloglia to use it in the main page and in the search results page. It must include the following Filtering by attributes ( brands, specific attributes, color, etc) Keyword filtering Filtering by categories The search results should be displayed in a js block on the home page and in the search results. The theme used in magento 2.4.3 is "Fatest by codazon". Please only serious people, we don't want people who spend half as much time searching as doing the work on stackoverflow. Some examples of how we w...

I need a solution that can automatically insert page numbers onto every A4 page in my document at the bottom. Key Requirements: - The system should work with A4 format. - It should be able to insert these page numbers automatically and consistently on every page. - The page numbers should be placed at the bottom of each page. Ideal Freelancer: - Experience working with PDF manipulation and automation. - Proficient in software that can perform automatic page numbering. - Attention to detail in maintaining consistency in design and positioning of the page numbers.

I am looking for a skilled developer to design a hybrid travel booking mobile application, complete with a web-based admin panel using modern technologies. The core feature of the app is travel package booking. Technology will be NodeJs/Flutter/React Native/Firebase ONLY Key Features: - Travel Package Booking aimed at solo travelers and families. - Search feature to search for destination - Provide detailed information about the package (including directions) - Wallet system for cash management (only to manage refunds) - accounting history - Vendor payment - Booking/cancellation/notifications/feedback The admin panel should include: - User management - Data uploading for treks - Payment management - app configurations I have more details to share with the chosen developer f...

Need support for react web applications i.e., small and medium enhancements to connect daily for 1 hour. Strong react basics including huge knowledge in CSS with Javascript and node js required.

I'm looking for an experienced NodeJS and JavaScript programmer to help me with a school project focused on exploring cybersecurity concepts. Key Requirements: - The task involves writing a client request to obtain a flag from a vulnerability site with advanced complexity (e.g., bypassing security measures). - The project involves emphasizing on Remote Code Execution (RCE) and pollution while interacting with the vulnerability site, so experience in these areas is a plus. --- Challenge Name: Emu Apothecary Category: Vulnerabilities Description has just opened up their potion brewing website for other Emus to create new potion recipes! However, they are afraid that one of the human hackers will pollute their ingredients. Can you get Remote Code Execution (RCE) on the Emu Apoth...

My requirements for this project are straightforward: Preferred Technologies: - Expertise in HTML/CSS, JavaScript, and React is necessary. Project Goal: - The focus is to create one responsive landing page while ensuring it's user-friendly. The site needs to be easy to navigate catering to all devices, desktop through mobile. Target Audience: - The website is designed for business professionals. Hence, the interface should resonate with professional aesthetics, smooth user experience, and functionalities. Looking forward to collaborating with a dedicated professional who understands the above criteria. Your portfolio demonstrating previous work with similar requirement will be beneficial.

I need a React developer to build a frontend for a Student Management System. Key Project Details: - Two Types of Users: The system will have both admin and normal user functionalities. - Entities: The project involves five main entities: students, admin, class, exam, hall, and scheduling. - CRUD Operations: The system should allow for Create, Read, Update, and Delete operations for the mentioned entities. Admin User Features: - Access Control: The admin user should have the ability to control user access and manage permissions. - Reports Generation: The system should be able to generate exam scheduling reports. I will provide you with the Swaggy API list for this project. The deadline for this project is Saturday night. Ideal skills and experience: - Proficiency in React...

I want to create a nutritional analysis software that helps manufacturing companies, restaurants, or other food service businesses manage nutritional information. The software should allow users to input an ingredient from a database, customize data, and quickly break down its nutritional va...software that helps manufacturing companies, restaurants, or other food service businesses manage nutritional information. The software should allow users to input an ingredient from a database, customize data, and quickly break down its nutritional values. Example of tools and technologies needed: Programming Languages: - Backend: Python (Django, Flask), Node.js (). - Frontend: JavaScript (React, Vue.js, Angular) Testing: - Selenium, Jest Version Control: - Git (GitHub, GitLab, Bitbucket)

I need a Figma expert who can take my specific design idea and turn it into a comprehensive prototype for a community yellow pages app. This prototype will be key to visualizing and testing the app's functionality before the development stage. Key Project Requirements: - Proficiency in Figma: You should be skilled in utilizing Figma's features to create a professio...of the purpose of each feature within the app. Below is a link for what I created so far in Figma. I would like to improve the design and add a few more pages to the prototype as well as make it more user friendly for testing. The app will be similar to below pages where the user can search for businesses in the community.

I'm looking for a skilled and creative animator to create engaging, high-quality cartoon themed animations using Blender. Key Responsibilities: - Creating and delivering one animation short per day, each around a minute in length. - Ensuring all animations are of high quality and adhere to the preferred cartoon style. Additional Re...Responsibilities: - Creating and delivering one animation short per day, each around a minute in length. - Ensuring all animations are of high quality and adhere to the preferred cartoon style. Additional Requirements: - Good command over English is necessary due to the requirement of English voice-overs for the animations. - Previous experience with Blender software and cartoon-themed animations. React if you're enthusiastic to work in t...

I'm in search of a skilled .Net mobile developer to finalize my .Net Maui mobile application. The key tasks include: - Implementing the logic, specifically around user interface interactions. - Although user authentication, data synchronization, and push notifications were not explicitly mentioned, familiarity with these aspects would be advantageo...both .Net and Maui and can confidently complete the application. Ideal skills and experience: - Proficiency in .Net and Maui - Experience in mobile application development - Understanding of user interface interactions - Knowledge in user authentication, data synchronization, and push notifications will be an advantage. Figma UI: Swagger attached

...long-term maintenance for my e-commerce website. The ecommerce is up and running and fully operational and we need a FULL STACK developer that can code in ALL AREAS of the webapp. - Frontend: React (JavaScript) - Backend: Node.js - Services: Python - Database: MySQL RESPONSIBILITIES: - Integration of new B2B APIs - New payment gateway integration - - Implementation of bug fixes and performance improvements. - Regular software updates and security patches. - Feature additions and enhancements. Skills and Experience: - Proven experience in maintaining e-commerce solutions. - Proficiency in React, Node.js, Python, and MySQL. - Strong problem-solving skills. - Excellent understanding of software best practices and design patterns. - Ability to work independently and meet d...

Requirement: experience in Node.js building applications and experience in migrating the monilithic application to microservices architecture applications. Experience in kafka for queuing. Experience in mongodb for database and angular for frontend. PS: This project is a very good opportunity for the developers who wants to learn development from scratch using modern micro service architecture This is a to support my job opportunity. Consultancies and companies please stay away. Need someone with good experience on NodeJs to help me understand my project, resolve blockers and provide constant feedback to improve myself.

...compatible blockchain supporting smart contracts (e.g., Binance Smart Chain, Polygon). • Smart Contract Language: Solidity (for Ethereum and compatible blockchains). • Frontend Framework: React.js or Vue.js for a responsive and user-friendly interface. • Backend: Node.js or any other suitable framework for handling off-chain processes and interactions with the blockchain. • Wallet Integration: Web3.js or for wallet interactions. • Database: A decentralized storage solution (e.g., IPFS) for storing game data and bet history or a traditional database like MongoDB for off-chain data. Summary: This decentralized betting platform offers a secure, transparent, and user-friendly environment for sports betting using cryptocurrency. By leveraging blockchai...

...manera oportuna. También se espera que realice mejoras y actualizaciones periódicas para garantizar un rendimiento óptimo de la plataforma. Requisitos del freelancer: - Experiencia demostrable en desarrollo web, especialmente en la creación de plataformas de comercio electrónico. - Conocimientos sólidos de programación y lenguajes de desarrollo web como HTML, CSS, JavaScript, y frameworks como React o Angular. - Experiencia en la integración de métodos de pago en línea y sistemas de autenticación de usuarios. - Capacidad para trabajar de manera autónoma y cumplir con los plazos establecidos. - Excelentes habilidades de comunicación y capacidad para colaborar con otros miembros del equipo, ...

...single instance. - Compute resources: The reduction should align proportionately with the decrease in application instances. This is an IBM Maximo Application Suite installation that was done with an AWS Marketplace Template "IBM Maximo Application Suite (BYOL)". The template built all the instances (9 including 3 masters, 3 workers, and 3 workers (using m5.2Xlarge and m5.4xlarge) along with a boot node and bastion host) and the volumes (26 of them with 6.23 TB of storage being used) and it is way overkill for just using as a sandbox to learn in and educate. They had no other Template option when installing. Ideal Skills & Experience: - Expertise in handling the Red Hat OpenShift environment - Strong knowledge of AWS and instance management - Prior experience in a...

I'm seeking a video editor with programming-related video editing experience. This project involves editing corporate videos. Requirements: - Proficient in JavaScript and React. - Able to edit corporate videos. - Comfortable using programming skills to enhance the video editing process. A candidate with experience in creating video content for corporate clients and knowledge of video editing software will be prioritized. The ideal freelancer should be able to marry their programming skills with video editing expertise to bring out the best in our corporate videos.

I need a mid-level React-Native developer with 3-5 years of experience who is well-versed in using Expo and writing JavaScript. The project involves implementing a design that already exists in Figma and fixing minor bugs in the code. Key Responsibilities: - Implement the design accurately: You should ensure that the design is represented faithfully in the app. Attention to detail is crucial in this aspect. - Fix any minor bugs: Any issues present in the existing code should be identified and resolved promptly. - Maintain code quality: You should be able to write clean, well-structured code that is easy to maintain in the future. Ideal Skills and Experience: - 3-5 years of experience in React-Native development - Proficiency in Expo, react-native and JavaScript - Str...

I am looking for a professional developer to create a comprehensive and user-friendly dashboard for tracking my crypto investments. This won't be a public app. It's for my personal use only. I will provide the front-end elements (React) most of the work is for adding functionality and back-end. Key Features (I have API from CoinStats for these): - Real-time Price Updates: The dashboard should provide real-time updates on the prices of various cryptocurrencies. - Portfolio Balance Overview: I need to have a clear overview of my overall portfolio balance. - Transaction History Tracking: This feature will allow me to keep track of all my transactions in the crypto market. Additional Pages: - Indicator Tracking: An essential feature that should provide insights into variou...

Hi Saira Arif M., as discussed this involves configuring Nginx on an AWS EC2 instance to properly serve a frontend React app under a custom domain while addressing SSL issues. Nginx configuration files need to be set up to ensure seamless access to the React site via the specified domain, resolving any SSL-related issues to ensure secure connections. my price is 10$ and I have one conditions: If you are happy we can do it right now

I'm looking for an experienced React + developer to optimize the loading times of my web application. Key Points: - The main issue with the current site seems to be the product pages, which need to have their loading times significantly improved. - Additionally, I suspect that large images or media files, inefficient code or algorithms, and server response times are also contributing to the overall slow performance. - Moreover, I need to update application packages, currently I am using nextjs 9.2.0 and some depreciated libraries. Ideal Candidate: - Proficient in React and to be able to efficiently refactor the code and optimize the loading times. - Experience with image and media optimization, as well as knowledge of best practices to ensure efficient image loadi...

...stations by name or zip code, and a list of station names accompanied by location information. Map should allow zoom and going to country specific. So users can see entire map of their country with locations. Ideally we want world map to show first. I want tabs where users can switch between USA or world map. This page will go onto and can be with html 5 and css and js. Key Features: - Display of Sister Radio Stations: - An interactive map should be the centerpiece of the affiliates page, showing all sister radio station locations globally. - A static map design with clickable markers is preferred, enabling users to easily navigate through different stations. - Search Functionality: - A search bar is necessary to allow users to find a specific station

...BUDGET 45€ - No Dummy Offers . Please don't send me dummy offers just to make the initial Contact and then ask for more money. The Project: Develop the project in NodeRed Monitoring specific "HTML div elements" from different web pages using Node-Red (different flows). Objective: Identify when there is any change in the DIV section of the webpages (every "x" seconds) and notify me of the change. It is not necessary to show what the change was. Just send the hyperlink by Telegram, including the subject of the flow. Requirements: Create a Node-Red project that can detect changes on multiple websites by creating flows. Include 2 example flows to demonstrate how the monitoring works. Provide detailed instructions on how to create a new f...

I am currently seeking a skilled Node JS developer to enhance my existing web application. The main objectives are: - Add a 'Wallet System' to the web app. - Integrate the Stripe payment gateway into the system. In addition to the above tasks, I would appreciate your insights on choosing a suitable server for the hosting of the system once the upgrades are complete. Ideal skills and experience for the job: - Proficiency in Node JS and relevant web technologies. - Previous experience in integrating payment gateways, particularly with Stripe. - Strong problem-solving abilities to assist in selecting a suitable server for the hosting of the system.

Looking forFront-end Developer with tech stack Angular, Vue.js, React Native with 4 years of experience.

I'm in need of a freelancer who can help me set up WhatsApp Web on a Cloud-based virtual machine. This setup is primarily aimed at enhancing our customer support service. Key Responsibilities: - Configuring WhatsApp Web on a Cloud-based virtual machine. - Ensuring smooth operation for cus...primarily aimed at enhancing our customer support service. Key Responsibilities: - Configuring WhatsApp Web on a Cloud-based virtual machine. - Ensuring smooth operation for customer support needs. - Includes hosting the virtual machine The ideal freelancer for this project should have: - Proficiency in JavaScript, as WhatsApp Web JS is based on it. - Experience in working with virtual machines, especially cloud-based ones. - A background in setting up whatsapp web JS Looking forw...

I will work on these FIGMA.

... 6. Creación de plantillas de documentos como facturas de venta en archivo pdf. 7. Que el desarrollo se responsive y con énfasis en movies. Requisitos: • Experiencia comprobada como Desarrollador Front-end, con énfasis en diseño de interfaces de usuario. • Conocimientos sólidos en tecnologías front-end actuales y escalables. • Familiaridad con frameworks y bibliotecas de desarrollo web, como React, Angular o Vue.js. • Excelentes habilidades de colaboración y comunicación para trabajar en equipo. • Capacidad para comprender y traducir requisitos de diseño en una interfaz de usuario funcional y atractiva. • Orientación al detalle y capacidad para entregar trabajos de alta calidad e...

Hi, We are currently looking for a talented react native developer to help us deliver our first notifications app for iphone and android. We are a web-development company that has developed a community platform that connects people and encourages them to support each other through sharing time, knowledge and support. We are looking for responses to our brief to understand the cost and time to deliver an app that will keep our community members up to date with all their community notifications. We have attached a brief and here is a link to link to an overview video: We’d love to receive responses by Wednesday the 29th May and we will aim to select a developer to work with shortly after. Best wishes

...debugging code to identify and fix issues promptly. 7. Staying up-to-date with the latest trends and technologies in front-end development. Required skills and qualifications: 1. Good communication skills and the ability to articulate technical concepts to non-technical stakeholders. (English Level: B2 ++) 2. Proficiency in HTML, CSS, and JavaScript. 3. Experience with front-end frameworks such as React, Angular, or Vue.js. 4. Strong understanding of responsive design principles and mobile-first development. 5. Familiarity with version control systems, such as Git. 6. Excellent problem-solving skills and attention to detail. 7. Ability to work independently and collaborate effectively within a team. If you are passionate about creating exceptional user experiences and have the...

...admin panel. **OVERVIEW** The framework is built in versions that are several years old. For example Node JS 7.10.0 and MySQL 5.7.0. Everything needs to be updated to highest stable version that offers support and packages. For Node.Js that will likely be version 18 or 20 Moreover, this project offers an excellent opportunity for more development. **QUOTE: UPGRADE** -Please provide a quote for upgrade of website, iOS & Android apps, and admin panel. -The Framework described below. -Specify team size and roles. -Time frame for completion. **PLATFORM FRAMEWORK & DETAILS** Framework: React, Node, Express, React Native Frontend: React (website), Node + Express (APIs on server), React Native (mobile apps on iOS ...

...primarily focus on Mobile App Development but should have a solid foundation in both mobile and web development. Key Responsibilities: - Mobile App Development (Primary) - Web Development (Secondary) Required Skills: - Proficiency in Kotlin and Swift for mobile app development - Fundamental understanding of Node and ReactJs for web development Professional Expertise: - You should have expert-level knowledge and experience in Kotlin and Swift. - It's a plus if you have a solid understanding of Node and ReactJs. Additional Requirements: - You need to sign a Non-Disclosure Agreement (NDA) and Intellectual Property (IP) agreement. - Excellent communication skills. If you're committed to quality work and long-term collaboration, then I look forward to working wi...

I need help to build Events based website, more details via chat

I need a simple webpage to display high scores for my clicking game. The game is mostly written in .JS files and the data is stored locally as "cookies". I would like the highscores to be saved as records in a database called "Highscores". Key Requirements: - Create a simple webpage that displays high scores from the game - Integrate the highscore system with the locally stored data - Match the design of the highscore page to the existing game's design Additional Information: - I'm not sure if I need user authentication to submit scores, please provide advice on this - I would like the highscore page to have a design that matches the game's aesthetic - this includes font, color schemes, and layout. Ideal Freelancer: - Proficient in JavaScript ...

I'm in need of an HTML JS developer to refresh the front-end of my existing website. My web site uses pages that have components generated in JS. Many of the properties are created / set in javascript are difficult to support and change. I would like the properties moved to a CSS file where they can be set more easily. I need a developer who works hard and long hours like myself. Obviously excellent HTML/CSS/Javascript are essential for the right developer. May lead to more work doing exciting new development . .

...that I need to convert to React-pdf. Key requirements: - Convert a specific PDF file to React-pdf: I have a particular PDF file that needs to be converted to React-pdf format. Ideal skills and experience for the job: - Proficient in React: You should have a strong command of React, particularly with handling PDF files in a web application. - Experience with PDF manipulation: Prior experience in converting PDF files to other formats, particularly in the context of web development, will be beneficial. - Familiarity with image retention in PDF conversions: Experience in preserving images during PDF conversions, especially in the context of React-pdf, will be a significant advantage. When bidding, please send me the works (e.g github) you hav...

...References for Design Inspiration 1. 2. 3. 4. These examples will serve as benchmarks to ensure the presentation meets high standards of visual appeal and effectiveness....

I'm in need of a membership portal that will store and display user profiles and membership levels. Key Requirements: - Data Display User profiles should be displayed in a detailed view Membership Levels Management I need the portal to support automatic upgrade/downgrade of membership levels Analytics: The membership portal should include analytics tracking ...Proficiency in backend development Experience with data storage and retrieval - UX/UI Design skills for sophisticated data display - Knowledge of membership management systems - Understanding of analytics implementation in web applications Your involvement in this project would contribute significantly to my business's efficiency in managing and understanding member data. Expertise needed in Express js, ec2,...

I am looking for an experienced React JS developer to convert a Figma design along with a couple of images into a fully responsive and interactive web application. Key Requirements: - Conversion of 1 Figma design and 2 images into an interactive web application - The web application should be fully responsive and compatible with all major browsers including Google Chrome, Mozilla Firefox, and Safari - Implement user authentication functionality Ideal Skills and Experience: - Proficiency in React JS and modern front-end technologies - Experience in converting Figma designs into interactive web applications - Strong understanding of UI/UX principles - Ability to implement user authentication features - Knowledge of responsive web design and cross-browser compati...

I'm facing issues with my Laravel Livewire Single Page Application after converting it using Live...functionality and ensuring that JavaScript executes properly after the first load. Key Details: - CSS Styling: The breadcrumb styling works perfectly on the first load, but breaks once the Single Page Application (SPA) is loaded. - Missing Functionality: Some features that were present before the conversion are working on Fresh Load but currently missing after SPA Load and need to be restored. - JS Execution: JavaScript isn't working as expected after the first load, this needs to be fixed. Skills and Experience: - Strong knowledge of Laravel Livewire Single Page Applications. - Proficiency in CSS, particularly Bootstrap. - Experience with JavaScript and its execution in L...

Hi, we need help to convert this figma design into Wix Studio. Needs to be responsive. No SEO needed. Needs to be well structure that won't break when making edits of text & image. Needs to setup site theme and stick all elements using site theme's text style & color. No real functionality needed. Just convert the design into Wix Studio. Please provide links to your previous Wix Studio sites. No suggestions on 'use wordpress' nor 'use classic editor' is needed.

I'm in urgent need of an experienced ...website. The site should be designed in a modern and simple style, with a consistent colour scheme (i will tell you what colours). The main features of the website should include a login/sign-up, and user profile functionality and a unique feature which is the map (I have the link for it) Key Expectations: - Create a modern, interactive website - Use HTML, CSS, and JavaScript with any UI framework or JS library of your choice - Implement a simple login/sign-up, and user profile page -Embed a map (i will provide you the link) I have attached my wireframes of how the basic website should look like. I am looking for a developer who can deliver this project as quickly as possible (2 days max). Please let me know if you're able to do ...

I'm in need of a skilled Full-Stack Developer with proficient knowledge in JavaScript, particularly in Node.js and react I want a complete bookstore website with basic crud operations with firebase and responsibilities include but are not limited to: - Building high-performing, scalable applications - Writing maintainable, testable, efficient code - Employing Firebase as the database for the project Experience & Skills: - Proven experience with JavaScript and Node.js - Knowledge and experience with Firebase - Understanding of non-relational databases - Ability to work independently and in team settings - Strong problem-solving skills

I'm looking for a skilled web developer for Next js - Frontend & Strapi as backened Key Requirements: - & Strapi Proficiency: A solid understanding and experience with and Strapi is essential. - Wireframe Utilization: You'll be working from an existing wireframe to ensure the site aligns with my vision. - Strong Communication: Regular updates and clear communication about the project's progress are important to me. - Attention to Detail: A keen eye for detail to ensure the finished product closely matches the wireframe and my expectations. - Time Management: The ability to work efficiently to meet agreed-upon deadlines is key. The ideal candidate will be proficient in and Strapi, have a good eye for design, and be able to translate wireframes into a full...

I'm in need of a membership portal that will store and display user profiles and membership levels. Key Requirements: - **Data Display**: User profiles should be displayed in a detailed view. - **Membership Levels Management**: I need the portal to support automatic upgrade/downgrade of membership levels. - **Analytics**: The membership portal should include analy...development - Experience with data storage and retrieval - UX/UI Design skills for sophisticated data display - Knowledge of membership management systems - Understanding of analytics implementation in web applications Your involvement in this project would contribute significantly to my business's efficiency in managing and understanding member data. Looking forward to receiving your bids. Express js, ec2,...

I'm looking for a skilled React Native developer to assist me in building a Minimum Viable Product (MVP) application. The project involves creating a mobile app that is compatible with both iOS and Android. Ideal skills and experience: - Proficient in React Native, with a proven track record of successful projects - Excellent communication and collaboration skills This project is ideal for a developer who is keen on working on a project from its initial stages and is passionate about creating user-friendly mobile applications.