Developer apps iphone android jobs

We need iOS swift developer for long term projects

...looking for a talented app developer to bring my idea to life. The app is aimed at cafe owners, allowing them to offer special deals to their customers. Key Features Required: - Ordering System: The app needs to include a total of three pre paid coffee packages and an ordering system to select one of the packages. - Tracking system: once a packages is selected, the app should be able to communicate with the Cafe to deduct from the package balance each consumption of the pre paid food. The app will need to be developed for both iOS and Android platforms. The app should be visually appealing and user-friendly. The design should enhance the user experience, and I am open to suggestions and recommendations in this area. Prior experience in developing similar apps ...

...Learning, MS Copilot, Cloud Computing (Azure), MS Power Platform, SQL Server, iOS, Android, and comprehensive Microsoft technologies. Preference will be given to candidates in the USA time zone. Key Details: - Main Objective: The main goal of this project is to develop a new software application. - Platforms: The application will be developed for Web, iOS and Android. Ideal Skills & Experience: - Proficient in Artificial Intelligence and Machine Learning with a proven track record in similar projects. - Expertise in MS Copilot, Cloud Computing (Azure), MS Power Platform, SQL Server, iOS, Android, and Microsoft technologies. - Prior experience in developing cross-platform applications for Web, iOS and Android. - Ability to work effectively within the US...

I have built an Android app in Android Studio (Iguana) but I cannot figure out how to upload it to the Google Play store. Hence, I am seeking a qualified freelancer to provide a 1-hour virtual tutorial explaining the app submission process. I want to be on VTC and share my screen while someone guides me through the process. This tutorial should primarily focus on: - The process of submitting an app to the store. - Understanding the app store's guidelines. - Tips on app signing and security. Upon successful completion of the class, an opportunity to build additional apps may arise. Remember, the ideal freelancer should have verifiable experience in Android app development, app store submissions and previous training/tutoring experience may be an adv...

I'm in need of a talented developer who specializes in creating apps for iOS, watchOS, and smart watches. These apps will be designed to improve daily productivity through the utilization of the gyroscope. Key Requirements: - Development of an app that can interact with the gyroscope in a unique way, including the ability to handle gyroscope events and a counter that's based on gyroscope data. - A modern design for the apps, reflecting a minimalistic aesthetic yet with a touch of customization. - The core aim of the app should be to enhance daily productivity. I'm searching for a proficient professional with experience in creating watch apps and a solid understanding of gyroscope functionality. The ideal candidate should also have a prov...

I am in need of a developer who can create a software/script capable of modifying iPhone 8 IMEI screenshots while maintaining the original appearance. The goal is to generate new screenshots from a given list of IMEIs. The ideal candidate for this job will have: - Expertise in image processing - Exceptional skills in software developing and scripting - Proven track record of creating similar software/scripts Primary tasks will include: - Creating software/script to modify iPhone 8 IMEI screenshots - Preserving the original aspect of the screenshots while making changes - Generating additional screenshots using a list of IMEIs - Exporting the modified screenshots This project will involve the generation and exporting of more than 100 screenshots. Please provide an ...

We are looking for a skilled Rive developer who can help us completely reskin a Flutter-based poker app for both mobile and PC platforms. The main task will be to redesign the user interface and give the app a fresh look and feel. We want it to be similar enough to the market leading mobile poker apps like X-Poker for player familiarity but with our own twist. We aim to launch by 1st August 2024. You can download X-Poker here to get an idea. The reskinning work will include but not be limited to: - Menu design and navigation (Player balance display, cashier, game selection menus/filters, settings) - Card graphics and animations (dealing, folding, community cards, winning/losing hand highlight/shadow) - Chip graphics and animations (betting, calling, chips collecting in

I require an expert in React and with solid experience in frontend development, specifically for medium interactivity tasks. Key Requirements: - The primary task involves working on the frontend of my project. - The interactivity level of the frontend should be at a medium level, including user authentication and profile setups. - The design should lean towards being professional and corporate. Your responsibilities will include: - Writing clean, maintainable, and efficient code. - Working closely with the design team to implement their specifications. - Ensuring the interactivity of the frontend aligns with the medium level, specifically focusing on user authentication and profiles. Ideal Candidate: - Proficient in React and , with a strong portfolio of frontend development. - Experie...

We are a fast-growing tech company(Imobisoft) looking for a talented Front-End Developer to join our team. As a Front-End Developer, you will be responsible for designing and implementing user-facing features, optimizing web applications for maximum speed and scalability, and collaborating with back-end developers and designers to improve the overall user experience. Requirements: Proven work experience as a Front-End Developer Proficient in HTML, CSS, JavaScript, and other front-end technologies Experience with responsive design and mobile-first development Knowledge of front-end frameworks such as React, Angular, or Vue.js Strong problem-solving skills and attention to detail Excellent communication and teamwork skills Responsibilities: Develop user-facing feature...

Core PHP Developer required. Should know how to use ChatGPT efficiently for faster development. Task Complexity - Easy Individual Freelancer only. Deadline - Today or Tomorrow

I'm in need of a competent developer to create a QR-based payment system app. The application should be designed for Android ,IOS, and Web platforms. The key features to be incorporated are: - QR Code Generation: The app should enable the generation of QR codes. This function is crucial as it will allow users to create their unique codes for payments. - QR Code Scanning: The application should equip users with the ability to scan QR codes. This process should be intuitive and user-friendly. - Payment Processing: An integral function of the app will be facilitating payments. It will be designed to process transactions seamlessly. The app is to support Standard QR code format - no dynamic or customized codes are needed. I expect the app to be secure, reliable, and easy t...

I need urgently wordpress developer needed for these auick tasks: 1) optimize database slow quries and rewrite 2) reduce the number of plugins amd rewrite or replace with custom lighter code 3) optimize LCP & INP from google search console Please only apply if uou are real developer who havs knowledge of wordprsss optimization and database php and core functionality If you are from ukrain thats preferred

Already have App in Flutter, ClickCar is my App name, please check app and its existing functionality first before you bid I'm in need of a skilled app developer to create a new saperate apps for me from the old app concept (Old App name = ClickCar). The app will be a platform for buying and selling used cars. Key Features: - User Profiles: Users should be able to create detailed profiles to engage with the app - The app will be developed for both iOS and Android platforms Ideal skills for this project include proficiency in app development for both iOS and Android, an understanding of e-commerce functionality, and experience in creating platforms for buying and selling items.

I'm looking for an Android developer to assist with the generation of an AAB file and its subsequent upload to the Google Play Store. Key Duties: - Generate AAB file: I need you to take care of the technicalities in creating and refining the AAB file for the Android App. - Upload to Play Store: I already have a Google Play Developer account. You'll be responsible for the successful uploading of the AAB file to the platform. Please note: - The app's functionality and content comply with Google Play Developer Policy. - There is no immediate need for you to be involved in the development of the app itself. Ideal Freelancer: - Proven experience in Android development. - Familiarity with the process of generating AAB files and uploa...

I'm looking for a talented and experienced app developer to build an informational app for both iOS and Android platforms. Here's what I need: - Proficiency in developing apps for both iOS and Android - Strong UX/UI skills to create an intuitive and attractive design - Ability to ensure seamless performance across all devices While I haven't specified features at this point, I require guidance from you on that, so your creativity and familiarity with the latest trends in app design will be highly valued. Although the primary purpose of the app is informational, having experience in integrating e-commerce or social networking features may be beneficial for future updates. Please provide a portfolio or examples of similar work done.

...io web application to a native app for both iOS and Android. Key Requirements: - The primary function of this app is content sharing. It should maintain the same level of functionality and user experience as the web app. - The app must also include a payment processing integration. Your responsibilities will include: - Wrapping the web app using Bravo Studios to ensure it runs smoothly on both iOS and Android platforms. - Ensuring seamless connectivity with the web app's existing backend for content sharing. - Implementing a secure and reliable payment processing system within the app. Ideal Skills and Experience: - Proficiency in both and Bravo Studios. - Prior experience in converting web applications to native mobile apps. - Strong understanding of pay...

I require expertise in mobile tracking specific to Android, with the focus on deep analysis of Whatsapp chats. - Data Extraction: The service should comprehensively extract media files that include photos, videos, and audio. Additionally, text messages and even deleted chat history need to be obtained. - Accessibility: I currently have physical access to the target Android device for the required setup or software installation. Ideal Skills: - Proficiency in Android OS and understanding Whatsapp functionalities. - Experience with data extraction and recovery. - Familiarity with mobile tracking and surveillance tools. Your task will be both challenging and sensitive, demanding utmost ethics and discretion.

I'm seeking a proficient JavaScript developer, ideally with Node.js experience, to build a color trading game as a web application. Key functionalities required include: - Player Registration: Managing user accounts and profiles. - Trading System: In-game trading of color assets between players. - Score Tracking: Keeping a log of player scores and providing leaderboards. - Fund Deposit and Withdrawal: Integrating a 3rd party app to manage player's game funds. Strong skills in the full JavaScript stack, particularly Node.js, are required and experience in game development will be highly advantageous. Your task will be to develop a fully functional product from the ground up, making sure to implement every feature mentioned above.

I'm looking for a skilled professional with dual expertise in both Android development and UX design. Key Goals & Responsibilities: - Improve user experience and aesthetics of my existing Kotlin Android application. - Enhance the app's look, colour, navigation, usability, and responsiveness. - Conduct code refactoring to ensure optimal performance. Proper understanding and experience in the following are crucial: - Android application development. - UX design practices. - Code refactoring, optimization and enhancing performance. - Visual aesthetics, and robust navigation systems. Your primary focus would be to revamp the app to make it more user friendly, agile and aesthetically pleasing. If you have sucessfully handled similar projects, please apply.

I need a seasoned developer to create a cross-platform cars marketplace app, available on both Android and iOS platforms. The principal focus of this app is to list cars for sale, emphasizing a user-friendly interface for potential car buyers. Essential Functions: - Implementation of advanced search filters to allow users efficiently navigate through the car listings based on their preferences. - Provision for high-quality image uploads to ensure that the listings are rich in visual details to attract potential buyers. Ideal Skills: - Experience in developing cross-platform mobile applications. - Expert knowledge of UI/UX Design for optimizing user interface. - Proficiency in advanced search algorithms. - Experience with image handling in mobile apps.

I am seeking to hire an experienced app developer to build an Android-based application with the primary focus on providing information to our specific target group, teens and young adults. Key project requirements: - Development of an informational Android app. - The material must be suitable and engaging for teens and young adults. - Appealing design that attracts our target audience. Ideally, the freelancer should have: - Prior experience in creating informational apps. - Exceptional skills in Android app development. - Understanding of teenager and young adult interests or previous project experience targeting this specific age group. - The ability to work efficiently and deliver the project within agreed deadlines.

About Us ------------------------------------------------------ Our startup has ambitious goals to change the way business software is used globally. To achieve our vision, we are looking for a full-time PHP Web Developer. Part-time arrangements can be made for the right candidates at hourly rates. Software Engineer, Web Platforms ------------------------------------------------------ We are ideally looking to hire the candidate on a full-time basis depending on the candidate’s availability. The primary focus will be for the individual to implement & manage mobile responsive web applications that impact our customers’ businesses and lives. The role will be entirely remote, giving you the flexibility of working from home. Candidate’s Experience ---...

...develop a product tailored for Professional Services companies - specifically project managers. The product aims at improving efficiency and productivity. Key Features: - Resource allocation and scheduling - Time tracking and reporting - Client management Ideal Skills: UX designer experienced in designing enterprise facing web app - minimum of 8 years experience out of which 5 years in enterprise apps - proficient in figma - mockups , wireframes , figma designs and figma prototypes - Can rapidly translate high level product / feature descriptions into modern designs - Has experience in designing dashboards , power user friendly designs This is a great opportunity to contribute to a project that will significantly streamline resource management processes and enhance the pr...

Looking for an expert mobile app developer who can create an engaging crossword puzzle mobile app for both Android and iOS platforms. This would be very similar to "English Crossword Puzzle Game" app in functionality. Key Features: - Design should be fun and playful, engaging users while not being overly complicated. - Game should have multiple difficulty levels catering to all type of users - beginners to experts. - Users will use coins to unlock hints, answers and explanations; these could either be purchased or earned by watching ads. - In addition to coins, the game should have an option for an ad-free version purchase. - Backend should allow a no-code method of uploading new crossword puzzles Needed Experience: - Reasonable mobile app development on both ...

I am seeking a skilled android app developer to create an Angel one Sub broker trading app with a focus on long-term investing. The developer should be versed in financial systems, specifically related to trading functionalities. Key Features Required: - Real-time stock quotes - Portfolio management - Trading alerts - Long-term investing support Experience with developing trading apps, or in the financial sector would be beneficial. Proficiency in creating intuitive and user-friendly interfaces for Android systems is crucial. The end product should be reliable, efficient, and effective for constant use in the long-term trading landscape.

I need ready taxi mobile app to buy. You will make some changes on it and publish on store. Need ready app. I am seeki...mobile app to buy. You will make some changes on it and publish on store. Need ready app. I am seeking services for a pre-made mobile taxi application compatible on both iOS and Android platforms. Even though I have not specified which features to incorporate, the app should be thoroughly functional, user friendly, and most importantly, be ready for deployment as soon as possible. Ideal skills and experience: - Proven experience in mobile app development (iOS and Android). - Knowledge and experience using latest app development languages and tools. - Strong portfolio of previous work (preferably related to taxi apps). - Excellent communication and...

As a client, I'm seeking an experienced developer to create an innovative Android application. The primary goal of this project is to develop a mobile app that allows users to earn through playing games. Key Features: - The app should mainly focus on adventure games. - Users should be able to earn points or real money through in-app activities. - The application should have a sleek and user-friendly interface. Ideal Skills and Experience: - Proficiency in Android app development. - Experience in developing gaming applications. - Familiarity with monetization strategies in mobile applications. - Strong UI/UX design skills to ensure a seamless user experience. This project offers an exciting opportunity for a skilled developer to create a unique earning ...

We are in need of a talented Android game developer for small, periodic tasks. Key Responsibilities: - Developing Android games, the type of the game will change depending on the task. Ideal Candidate: - Prior experience in developing Android games is a must. - Proficiency in Java and Unity. - Strong problem-solving skills. - Ability to work in a fast-paced environment and deliver quality work under tight deadlines. Please submit your proposal including past examples of your games and your availability for short tasks.

I am looking for a hands-on Laravel Developer who can efficiently handle feature development for an existing website. Here's the set of tasks that I need: - Analyze the existing website's codebase - Plan and execute the development of new features as per the requirement Although it is not specifically stated, the development might involve areas like user management systems, e-commerce functionalities, or API integrations. Therefore, a robust grasp on these subjects would be a bonus. REQUIRED SKILLS & EXPERIENCE: - Proven experience in Laravel development, specifically in feature development - Comprehensive understanding of user management systems, e-commerce functionalities, and API integrations is a plus - Exceptional problem-solving skills - Strong knowledge in...

I'm looking for an experienced professional in Google Dialogflow to help me develop a chatbot that's capable of engaging with users in both text and voice, and will be integrated into my website. Key Requirements: - Expertise in Google Dialogflow: You should be skilled in working with Google Dialogflow and have evidence of previous projects where you've developed successful chatbots. - Conversational Design: You must have experience in designing chatbot interactions that are user-friendly and can handle customer support queries effectively. The ideal candidate will have a strong background in coding and developing chatbots, with a focus on delivering a seamless user experience. Previous experience with customer support chatbots and website integration would be a plus.

I'm urgently seeking an experienced Laravel developer to add critical new elements to my existing website. Understanding of user registration systems, online payment methods, and social network integrations is pivotal for this project's success. Here's what I need: - A top notch user registration and login process - Integration of secure online payment options - Capacity for social media sharing A knowledge of Laravel's ecosystem alongside a strong knack for developing features quickly is paramount. I need this work completed within one day. Even though the deadline is tight, I still expect high-quality work. Ready to start immediately. Your prior experience with similar projects will be valued.

SwiftUI Senior IOS Developer needed - for large scale video sharing app project. please chat with me for more details. Must have extremely good experience with SwiftUI development. Skills in coding in TCA pattern a + | MVVM | SwiftUI skills required. I am looking for a senior IOS developer with vast experience in SwiftUI development. Team players with an exceptional understanding of the TCA pattern or MVVM will be considered first. Project Overview: • Develop a large scale, interactive video sharing application. • Implement a clean and minimalistic design. Key Features: • Video uploading and sharing - Create a system where users can easily upload, share, and manage videos. • User profiles and social interactions - Users must be able to create and manage...

I'm seeking an experienced app developer to create an educational Android app with quiz functionality. Key Features: - The app needs to have a user-friendly interface for students to access educational content and take quizzes. - The quiz functionality should allow me to create and manage different types of questions. - The app should track user progress and provide performance analytics. Ideal Candidate: - Should have experience in developing Android apps. - A strong background in creating educational apps with quiz functionality. - Proficiency in UI/UX design for an engaging user experience. - Previous experience in building apps that track and analyze user data for educational purposes will be a plus. Please include samples of previous...

Job Description - "Please review budget below:" We are seeking an experienced freelance web developer to create an Amazon affiliate e-commerce website focused on safety equipment and educational content. The successful candidate will be responsible for both front-end and back-end development, including the integration of Google Maps and a custom list feature for Amazon pick up. The website should be responsive, user-friendly, and optimized for search engines. Responsibilities: Develop a fully functional e-commerce affiliate website using WordPress and WooCommerce (or similar platforms). Implement Google Maps and a dynamic list for displaying Amazon pick up locations Ensure the website is mobile-responsive and optimized for SEO. Collaborate with the project manager to m...

I'm seeking a seasoned mobile app developer to create an Android application. This app will primarily function as an accounting tool, specifically focused on recurring transaction recording. Key Features: - The app should allow users to log recurring transactions effectively. - It's essential that the application provides robust and user-friendly features for efficient accounting. Ideal Skills and Experience: - Proficient in Android app development. - Previous experience in creating similar applications with recurring transaction features. I'm looking for a freelancer who can bring both technical expertise and a solid grasp of accounting concepts to this project. Your ability to deliver a clean, functional, and user-friendly mobile app will be cruci...

bootstrap front end developer needs to complete few pages in an ecommerce site

I'm looking for a skilled professional with dual expertise in both Android development and UX design. Key Goals & Responsibilities: - Improve user experience and aesthetics of my existing Kotlin Android application. - Enhance the app's look, colour, navigation, usability, and responsiveness. - Conduct code refactoring to ensure optimal performance. Proper understanding and experience in the following are crucial: - Android application development. - UX design practices. - Code refactoring, optimization and enhancing performance. - Visual aesthetics, and robust navigation systems. Your primary focus would be to revamp the app to make it more user friendly, agile and aesthetically pleasing. If you have sucessfully handled similar projects, please apply...

I'm in need of an experienced individual Laravel developer(not agency) to work on a part-time basis. The ideal candidate should have a comprehensive understanding of both front-end and back-end development in Laravel. Key Responsibilities: - Participate in the full software development lifecycle - Implement back-end functionalities including database design, API development, and user authentication and authorization - Develop front-end features as needed - Work on user registration and login features - Implement CRUD operations (create, read, update, delete) - Integrate a payment gateway The candidate should have: - Proven experience in full-stack Laravel development - Strong understanding of Laravel and its ecosystem - Proficiency in front-end technologies like HTML, CSS, a...

More details: Which platforms should the mobile app be developed for? Both What features must be included in the app for a seamless browsing experience? In-app purchase, Product search function, User reviews and ratings, payment gateway How soon do you need your project completed? Within a month

I'm hunting for an experienced WordPress developer. You'll need to handle plugin installation and configuration efficiently. I already have a list of specific plugins in mind, with a crucial focus on establishing a robust shopping cart system on my website. Key Responsibilities: - Setting up and configuring my chosen plugins - Ensuring seamless integration of the shopping cart system Ideal Skills: - Great understanding and experience with WordPress - Proficient in Plugin installation and configuration - E-commerce integration, particularly shopping cart systems.

I am looking for a seasoned mobile app developer who can create a robust e-commerce app for both iOS and Android platforms. The app is primarily focused on facilitating cash debit and cridet should include the following key features: - User registration and login: A streamlined, secure process for users to register and log in to the app. - Product catalog: An extensive and well-organized catalog showcasing a variety of products. - Shopping cart: A functional and user-friendly shopping cart that enables smooth transactions and easy checkout. The ideal candidate should have prior experience in developing e-commerce applications, with a keen understanding of both iOS and Android platforms. A strong background in user authentication and database management is crucial for...

Project Overview Enhance and customize an AI web-based application by extending its categories. It is built using the Laravel framework. Requirements - Customize an existing AI-powered web-based application. - Add new categories to the app's existing structure. - Ensure compatibility and optimization of new features with the Laravel framework. Create a nice UX/UI landing page Create logo and Favicon

Urgently need a proficient Laravel developer to create a new feature for my project, all within a day. While the specifics of the feature are up for discussion, what remains non-negotiable is the tight deadline. Demonstrated experience in rapid development and testing within Laravel Framework is crucial. Desired Skills and Experience: - Extensive Laravel experience - Proven track record in agile development - Highly productive and dedicated, able to deliver within tight deadlines - Excellent troubleshooting and communication skills NOTE: Longer-term collaboration prospects available should this task be executed excellently.

I'm looking for an experienced Android developer to join my project. Although I haven't specified the exact type of app or its purpose yet, I can tell you it'll be important for you to be proficient in the following areas: - Java programming - Android Studio - UI/UX design Please only bid if you are comfortable with the above skills and have a vast experience in Android development. I'll provide further details about the project to the right candidate. Thank you.

As an experienced Laravel developer, I'm looking to augment my existing website with new features. However, the specific features to be added have not been finalized yet. - Primary Role: Main tasks will include implementing these updates and ensuring they integrate seamlessly with the site's existing functions. This will require adept skills in both frontend and backend development and a strong understanding of database integration. - Technology Stack: The website is currently built on Laravel. Proficiency in this framework is key. Additional experience in HTML/CSS, JavaScript, and PHP would be advantageous. - Uncertain Features: While I have not yet decided on the specific additions to be implemented, it's important that the freelancer is competent and flexible ...

I need an experienced app developer to create a dine-in concept app. This platform is set to be both Android and iOS compatible. Your experience with these platforms, and with creating functional, user-friendly interfaces, will greatly contribute to this project. KEY FEATURES: - Table Reservation: Enable users to reserve tables with ease. - Menu Browsing: Users should be able to browse the menu thoroughly and conveniently. - Order Placement: Facilitate the entire ordering process through the app. - able to scan QR code to place order and pay. DESIGN PREFERENCES: - The aesthetic of application should lean towards the colorful side. I am expecting a lively interface that will leave an impression on the users. PLEASE NOTE: - I understand the risks of online scams. Therefore, ...

I'm experiencing crashing and UI/UX issues with my existing Android App. I haven't made any recent updates to the app, but these issues have become prevalent in the last few weeks. Key Responsibilities: - Pinpoint and resolve the crashing issues in the app - Enhance the user experience and interface to make the app more appealing and user-friendly. Ideal Skills and Experience: - Proven experience in Android app debugging. - Strong familiarity with UI/UX principles. - Ability to work efficiently and independently. Please share your relevant experience and approach to this type of project.

As someone who needs assistance in extending my online platform, I need a Laravel expert to help with the addition of a blog page to my existing site. The task will cover the back-end, integrating it with a functional database, and working on the API development to ensure smooth function. The specific features I want on the blog page are Social Media sharing buttons and a section for featured blog posts. I'm unsure about the exact design elements so ideally, I would appreciate some direction and advice on this. The ideal freelancer for this project is not only proficient in Laravel, but also possesses a knack for database design, API development, and a keen eye for user interface design. It'd be great if you had previous experience in blog integration and could provide examples...

We need a website that allows us to provide pre-employment assessments for our clients. Nothing we need is new, and building from existing tools is acceptable. 1) Website. For the most part, pretty standard stuff. Other than this we would want: a) a test library so that people can see what tests we offer (but not th...suitable vacancies. Search functionality would be similar to other job sites. During application process, choose whether to reuse previously completed tests (where possible) or to re-take them. Alerts when clients post suitable jobs. Create certificate they can post on social media/job sites displaying their results (and giving us exposure) Client Portal List jobs on our job board Possibly mobile apps, most likely with a reduce level of functionality as least ...

I'm in need of an experienced MERN stack developer to assist with a new web application. Your responsibilities will encompass: - Frontend Development: Creation of an engaging and user-friendly interface. - Backend Development: Ensuring fast and reliable server responses. - Database Design: Implementing a robust and scalable data storage solution. This project's purpose is to create a dynamic web application with the following feature: - User Registration and Authentication: Users should be able to create personal profiles and log into the platform securely. Ideal applicants should have extensive experience with MongoDB, , React, and Node.js, as well as strong knowledge of user registration and authentication protocols. A keen eye for detail, and the ability to work eff...