Freelance app developerdela

I'm seeking a competent Java developer to assist in creating a web application geared towards a support ticket system. The resulting application should integrate the following features: - A structured form for ticket submission with SSO - A comprehensive ticket tracking system with history - A robust email notification system If you have extensive experience in Java, web application development, and design elements such as user login, you may be the perfect candidate. Proficiency in creating user-friendly interfaces that seamlessly incorporate form submission and tracking capabilities is expected. With your help, we can optimize our customer service process and streamline our ticketing system. Your advanced Java skills will make this a reality.

As a client with a keen eye for absolute perfection, I'm looking for a skilled Xamarin developer. You'll be tasked with debugging an existing Android application to ensure its smooth operation. Specifically, your job will be to: - Correct the OTP functionality in the app. - Implement real-time messaging capabilities. In order to excel in this project, you should have: - Expertise in Xamarin development. - Profound knowledge of Android apps. - Proven experience in real-time messaging functionality. - A keen eye for detail to effectively handle debugging tasks. I look forward to a swift yet efficient correction process.

I am in need of a Python Developer with a strong emphasis on data analysis. The project will involve the following tasks, using Python's NLP libraries to analyze the text's context and semantics. 1. Data Preparation Data Cleaning: Standardize the format of resumes and job postings, removing any irrelevant information or inconsistencies. Data Anonymization: Ensure all personal information is anonymized to maintain confidentiality. Data Labeling (if necessary): Label the data, if required, to facilitate supervised learning approaches. 2. Developing the Algorithms Keyword-Based Algorithm: Extraction: Extract key skills, experiences, and qualifications from resumes and job postings using basic text analysis techniques. Matching: Develop a matching algorithm that compares t...

Are you passionate about storytelling and eager to uncover the truths about artificial intelligence (AI) that billionaires prefer to keep hidden? We're searching for a talented scriptwriter to join our team and shed light on the secrets of AI that the elite don't want you to know. Job Description: As a freelance scriptwriter for our groundbreaking project, you'll have the opportunity to delve deep into the unexplored realms of AI and craft compelling narratives that challenge conventional wisdom. Your mission is to reveal the untold stories, ethical dilemmas, and hidden agendas surrounding AI development that have been obscured by billionaire interests. Responsibilities: Collaborate with our team to brainstorm ideas and develop the overarching narrative for our p...

We need an experienced website developer to make our corporate website. The requirements and the website template is attached. Do not respond without going through the website template and requirement document thoroughly. You will be responsible for complete design, development, testing, hosting on our windows shared server. You will also create/ find images/ video for the websie pages. You will not violate any copyrights in doing so. If you have used AI tools for this, you will take our permission for the same and label it accordingly. The server is bought from Hostgator.in. You will also configure this server so that we get the copy of the emails sent by the website. After completion of your testing we will test it on the UAT environment provided by you. After our sign off, ...

We are searching for an experiences openstack developer to solve a boot issue on an openstack server. Only react if you have good experience with openstack and that you can quickly solve it

I need Php Laravel developer to work on existing admin pannel. Want to change the UI design & add some functionality. It is super urgent task that needs to be finish in max 1-2 days.

I need a radiant logic developer for our highly complex system. The tasks the developer will perform include: - Integrating the radiant logic system with our existing systems - Building authentication and authorization modules - Creating identity management workflows The developer should be proficient in Java, as our system heavily relies on it. Familiarity with Java is an absolute must! The system we have is quite complex, necessitating extensive integration work. The ideal candidate should have experience in working with highly intricate systems.

I'm looking for an expert Angular developer to help with front-end development on my project. The key tasks you'll be tasked with include: - Creating innovative, interactive UI elements - Implementing Angular services - Collaborating with our team for third-party API integrations It's essential that you have a high level of experience with Angular, and have previously worked with third-party APIs. If you're the kind of freelancer who is meticulous and loves a challenge, I can't wait to see your bid.

I'm in need of an experienced Arduino expert, specifically one who is well-versed in home automation projects. While your specific tasks aren't limited to, they fundamentally revolve around the following: * Writing, troubleshooting, and optimizing Arduino codes. * Designing and prototyping of Arduino circuits. Ideal Skills: * Proficient in Arduino programming. * Rich experience in home automation projects. * Demonstrated success in circuit design and prototyping. In your application, please include a detailed descriptions of your past Arduino coding experience, particularly those related to home automation. Your proven track record and experience in this field is crucial for this project success.

I'm looking for a skilled Flutter developer to create an app with user authentication, push notifications, and in-app purchases. Key Responsibilities: - Create a user authentication system that is secure and user-friendly. - Integrate push notifications to keep users engaged. - Implement in-app purchases that are seamless and enhance user experience. Desired Skills and Experience: - Proven experience in developing Flutter apps. - Strong understanding of user authentication mechanisms. - Proficiency in integrating push notifications within Flutter apps. - Familiarity with in-app purchase implementation. - Ability to deliver high-quality work within the specified timeline.

I'm currently in need of an experienced Salesforce developer who can help me work on creating workflows, automations, dashboards and reports for my Salesforce Enterprise account. The developer will have admin access to sandbox with full permissions. Key tasks would include: - Creating efficient workflows and automations - Designing comprehensive dashboards and reports Ideal skill set: - Proven experience working with Salesforce Enterprise - Proficient in creating workflows, automations and dashboards - Strong attention to detail and excellent problem-solving skills This project calls for a self-starter who can independently navigate Salesforce Enterprise and deliver results in a timely and efficient manner.

Tasks: Data Preparation: Create a dataset with anonymized student resumes and faculty project descriptions. (I will provide you 50 resumes and 50 job descriptions) Ensure the dataset reflects a variety of academic disciplines and project types. Develop Algorithms:(This is the core) Keyword-Based Algorithm: Develop an algorithm to match explicit keywords and phrases from resumes and project descriptions. NLP-Based Algorithm: Utilize Python's NLP libraries to create an algorithm that analyzes text context and semantics for a more nuanced matching process. Algorithm Evaluation: Test both algorithms on a micro job portal for academic collaborations. Use quantitative metrics like match accuracy and processing efficiency for evaluation. Collect qualitative feedback through surveys fro...

I'm in need of a Laravel expert to help with a variety of tasks for my website. You'll be responsible for backend development, frontend development, and database management. If you have experience with Laravel 8 and have an eye for detail, this project is for you. Key Tasks: - Backend Development: This involves building the core logic and functionality of the website using Laravel 8. - Frontend Development: You will be using Laravel Blade templates to create user-friendly interfaces. - Database Management: Your role will also cover structuring and optimizing the database for the website to ensure it's running efficiently. The primary goal of this project is to introduce new features to the website. I'm looking for someone who can not only follow instructions but also...

Dear Freelancer, Please write carefully the job proposal We are looking for a PHP Laravel expert to modify a service we use in our company. To explain the solution we have: -It works like a ticketing service -Multi level of approval -Customer side is working fully What we need: -Be able to create "intern ticket" by employees -Help us to redefine roles and permissions (we know what we need but we need you to understand what we have and explain how it works clearly) -Make testing on all the roles and the workflow to be sure that people that don't need to see the ticket won't see it for example -Modify and create new fields with conditions -Assign a ticket category to a specific employee of a specific service After modifications we'll need future additions that w...

...implementation is that one of a to Minimum Value Product. Since the LLM must be specialized on a specific industrial sector, it is necessary that it is trained on a set of additional documentation, for example using a RAG (Retrieval-Augmented Generation) mechanism. Consider that I have approximately 10,000 documents in pdf and word format for a total of approximately 1 TB. As part of the work, the freelance shall provide the specifications for a server (e.g.: RAM, Memory, GPU...) on which deploy the LLM and to carry out the LLM training. Once trained, the LLM shall be re-trained periodically (e.g. every 6 months) on updated set of data. In general, training could be repeated several times. The application shall implement a token consumption mechanism in order to implement a pay-...

I'm in need of an experienced web developer to create a fully functional e-commerce website for my B2B business. Key Requirements: - E-commerce Website: I'm looking for a professional who has a strong grasp of e-commerce website design and development. - I need eyecatching website desighn for my furniture product (*i want with domain hosting . star trade enterprise name ) star trade enterprise ahmedabad - Payment Integration: The website should have UPI payment gateway integration. Additional Details: - Scale: I will be listing more than 100 different products on the website, so the website should be designed to handle this volume. Ideal Freelancer: - Proven Experience: A portfolio demonstrating successful past e-commerce websites will be highly valued. - Paymen...

I need a React.js developer with at least 3 years of experience to help me with my project. The primary goal is to fix bugs in the existing application while improving its UI/UX design. Key Responsibilities: - Frontend development - Fixing functionality errors - Resolving user interface inconsistencies The ideal candidate should have: - 3+ years of experience in React.js - Proven track record of fixing bugs - Strong UI/UX design skills This is a long-term project with a budget of 250 INR per hour. If you have the required expertise, please reach out.

I'm in need of an experienced Laravel developer to tackle a big, complex project. Your duties will involve: - Backend development: You should know how to build structured and maintainable code bases. - Database management: You'll be dealing with a sizeable database, so experience in dealing with large databases is super crucial. - API integration: Be prepared to integrate numerous APIs into the project. This project will be built using Laravel 8.x, so prior experience with this version is mandatory. If you're a problem solver, have a knack for large-scale projects, and have a deep knowledge and experience with Laravel, then this project is for you.

I'm looking for a skilled Unity UI Developer to help implement critical UI functionality with a focus on Corporate Branding. The key tasks for the project include: - Implementing UI functionality: The primary task for the selected candidate is to create an efficient, user-friendly UI. This will include developing menus, buttons, and other interactive elements as necessary. We have a figma design which you can use for reference. The UI should be optimized for: - Desktop computers: It's crucial that the UI is tailored for desktop browsers, ensuring a seamless user experience across this platform. - Web GL: The UI should also be optimized for Web GL, allowing it to function smoothly and responsively online. There are certain user interface elements that are crucial for th...

I'm seeking a knowledgeable freelance writer to assist in the creation of a healthcare policy paper, aimed at influencing public policy officials. The paper should maintain a professional tone, striking a balance between readability and formality. Ideal Skills and Experience: - A background or strong understanding of the healthcare sector - Proven policy writing or technical writing skills - Ability to communicate complex ideas in a clear, concise manner. The hired freelancer will be expected to conduct in-depth research on the current landscape of healthcare policies and strategies, and provide clear, detailed and actionable recommendations. Expectations include: - Frequent check-ins and drafts for review - Ability to adjust course based on feedback - Thorough review of ...

We are seeking a talented MERN Stack Developer to join our dynamic team. As a MERN Stack Developer, you will be responsible for designing, developing, and implementing robust web applications using the MERN (MongoDB, , React.js, Node.js) stack. You will work closely with our team of designers and developers to create innovative solutions that meet our clients' needs. Responsibilities:  Develop and maintain web applications using the MERN stack.  Collaborate with cross-functional teams to define, design, and ship new features.  Write clean, maintainable, and efficient code.  Conduct code reviews and provide constructive feedback to other team members.  Troubleshoot and debug issues to ensure optimal performance and reliability.  Stay up-to-date with emergi...

I'm looking for an experienced Python developer to create a script for me. The script should take in a JSON file with product information and use it to generate 2D animated videos. These videos will be used for social media marketing. Key Requirements: - 2D Animation: The videos should be created in a 2D animation style. - Dynamic Animation Changes: The video customization should be dynamic, with animations changing based on the JSON data provided. - Social Media Marketing: The intended use for the videos is social media marketing, so they should be engaging and shareable. Ideal Skills: - Python: Proficiency in Python is a must, as the script will be written in this language. - 2D Animation: Experience in creating 2D animated videos is required. - Data Handling: Knowledge of ...

I'm looking for a Full Stack Developer experienced in blockchain technology and game development to create a web-based game utilizing Ethereum's blockchain, Node.JS, and wallet integration. The game should incorporate the following functionalities: The game now uses backend for the whole mechanism, but I want to make it more decentralized by using smart contract. As you can check on the game, it uses input wallet address and this kind of operation is not comfortable for users. So I want to integrate wallet connect feature on the game. Are you able to implement all of these features? It could be MetaMask, Coinbase, TrustWallet, Rainbow. Please check our current codebase. - Blockchain Technology: Implement blockchain technology to enhance user experience and security. - No...

I'm looking for an experienced Python developer who can assist me with an ongoing issue I'm facing on my Windows machine. Every time I attempt to install Python 3.8, I encounter an error message that says 'distutils directory not found'. Despite my efforts in uninstalling and reinstalling Python, the problem persists. Ideal Skills and Experience: - Python development expertise - Exceptional understanding of Python installation on Windows machines - Proven track record in troubleshooting and resolving Python installation errors Your task will be to identify the root cause of this issue, propose an effective solution, and walk me through the process so I can prevent the same problem from recurring in the future. I'll appreciate any assistance I can get on t...

Developer needed for small app related task

We're looking for an experienced React Native developer with a minimum of 3 years' experience, proficient in Android and iOS development. Must possess a deep understanding of hardware APIs, including gaming peripherals like speakers, mic, and notification systems. Additionally, strong logic-building skills are essential to implement core business features required for the app. Required skills include React Native, Android development, iOS development, and Docker. Please note that there are additional functionalities that may be required in the app. Your input into refining my design is also welcome. NOTE: Freshers Do not Apply, only experienced freelancers needed.

I'm looking for an experienced developer who specializes in creating Google Spreadsheet plugins. The purpose is to import and export mixed data type including both text and numerical data. Key Objectives: - Development of a Google Spreadsheet plugin. - Integration for data from a web-based app. - Build up functionality of data import/export. Ideal Skills: - Experience in developing Google Spreadsheet plugins. - Proficiency in handling both numerical and text data. - Experience in integrating with web-based applications. The project involves developing a plugin for Google Spreadsheet that enables sharing specific spreadsheet data with our users, subject to their permissions. Upon sharing, users can view and potentially interact with the data. Additionally, the plugi...

I'm in search of an experienced iOS developer who's proficient in Swift and Objective-C, and has a proven track record in UI/UX design. My project involves creating a parental control application. Key Requirements: - Proficiency in Swift and Objective-C: The ideal candidate should be adept at both languages to ensure the efficient development of the application. - Strong UI/UX Design Skills: You will be responsible for designing the user interface and ensuring a seamless user experience in the app. You will be provided with a detailed design and wireframe for the application. The project's success hinges on your ability to translate these designs into a fully functional app, complete with intuitive parental control features and solid security measures...

I'm in need of a skilled game developer who can create a 3D Action game for the Android platform. The primary target audience for this game is teenagers aged between 13-18 years. The game should be engaging, immersive and well optimized for mobile play. Key aspects of the project: - Development of a 3D Action game for Android - Ensuring the game is engaging and appealing to teenagers - Consideration of mobile optimization for smooth playability Ideal skills and experience for this job: - Proficiency in 3D game development - Strong background in Android game development - Experience in creating engaging game narratives - Understanding of game mechanics suitable for teenagers - Knowledge of mobile optimization techniques Please provide examples of previous work to help me ga...

Stellenbeschreibung: Freelancer Webentwickler/Webdesigner für Homepage-Gestaltung und -Pflege Wir suchen einen talentierten Freelance-Webentwickler/Webdesigner, der/die unsere Online-Präsenz verbessern kann. Als Mitglied unseres Teams wirst du für die Gestaltung, Entwicklung und Pflege unserer Webseite verantwortlich sein, um sicherzustellen, dass sie benutzerfreundlich, ansprechend und funktional ist. Achtung: Der Auftrag ist vor Ort in Köln-Lindenthal umzusetzen Aufgaben: 1. Entwicklung maßgeschneiderter Webseiten für unsere Kunden, die ihren Anforderungen und Markenimage entsprechen. 2. Erstellung von responsiven Designs, um eine optimale Benutzererfahrung auf verschiedenen Geräten sicherzustellen. 3. Integration von interaktiven Elementen u...

We are looking for digital marketing company or freelance who can work part time to prove men enlargement product leads from adult site cpl bases fix rate 0.40 dollar minimum leads required 50

Looking for an experienced software developer proficient in Java and Python. Specializations required: - Java - Python The software will be developed specifically for Windows operating systems. Familiarity with Windows development is a must. Database Technology: - The software should be fully compatible with MySQL database technology. Previous work with MySQL is desirable. To summarize, your skills and experience should include, but not be limited to, Java, Python, Windows software development and MySQL database technology. If this sounds like you, let's connect!

I'm seeking a developer with proficiency in MERN stack, machine learning, and WebSocket technology. - Your primary task will be to develop a web application using MERN stack, emphasizing ReactJS for the front-end. - You'll also need to implement predictive modeling using machine learning in the application. - The chat functionality will require the use of WebSocket technology for seamless real-time communication. Ideal candidates should have: - Extensive experience with ReactJS and MERN stack development. - Proven expertise in machine learning, particularly in predictive modeling. - Familiarity with WebSocket technology and its implementation in chat features. Please provide previous work samples or a detailed portfolio showcasing your skills in these areas. Project ...

We are looking for a talented freelance marketer who can help optimize our ad strategy on Facebook, Google AdWords, and Instagram. Our goal is to increase our ROI by understanding exactly how our ads are performing and making informed adjustments. Tasks for this project include: 1. Metrics Analysis: - We need a detailed analysis of our Click-Through Rate (CTR), Conversion Rate, and Cost per Acquisition (CPA). 2. Ad Adjustment: - Depending on the analysis, we may require adjustments to our current ad strategy. This could involve increasing the budget on successful ads, pausing underperforming ones, or refining our targeting approach. 3. Checkout Flow Testing: - A review of our checkout process is also key. We want to make sure our shipping options are clear to custom...

I'm in need of a skilled React + Vite developer to bring my wireframed web project to life. The project encompasses a range of features and design requirements, all geared towards a general public audience. Key Features: - User Authentication: The site will require user registration and login functionality. - Real-time Updates: The application should provide a seamless experience by delivering updates in real-time. - Responsive Design: The platform should be accessible and user-friendly across a variety of devices and screen sizes. Target Audience: The site is primarily intended for the general public. As such, it's crucial that the site is intuitive and easy to navigate for users of varying backgrounds and technical proficiencies. Design: The visual style and color sch...

I'm in need of a skilled React JavaScript front-end developer to work on a project that involves the following: - Implementing a user authentication system - Creating and integrating image, text, and video slides into the front end. The slides should be easy to manage and accessible. The ideal candidate for this project should have: - Strong React and JavaScript skills. - Experience in user authentication implementation. - Proficiency with creating and integrating dynamic content like slides. - Ability to design and implement a modern, minimalistic front end.

I'm in need of an experienced Full-Stack Developer with strong expertise in JavaScript and Python. Ideally, you should also have experience with React. The web application I'm envisioning is similar to Patreon, with the following key features: - **Subscription Management:** Users should be able to subscribe to creators, and creators should be able to manage their subscribers. - **Payment Gateway Integration:** The platform should support secure payments for the subscriptions. An understanding of payment gateway integrations is critical. - **Content Upload and Management:** Creators should be able to upload content for their subscribers, and users should be able to access this content. - **Messaging:** A messaging system should be in place to facilitate communication b...

I am looking for a freelance writer who have knowledge on: Management and commerce-related areas Writer should be: Well versed with the subject Know the relevance of quality Should submit the tasks on time Kindly answer these questions before applying: A brief about your professional background Are you working as an individual or team? Your expectations in terms of ppw How many words can be done in a day (approx)?

Job Title: Freelance Solutions Architect for Social Impact Collaboration Software Company Overview: Peopled is an early-stage startup dedicated to developing social impact collaboration software aimed at accelerating social impact initiatives by fostering partnerships and enhancing traceability of social impact outcomes. Our beta app () has recently been launched, and we are now gearing up for the development of our full MVP. Project Objectives: We are seeking a Freelance Solutions Architect to help us achieve three critical objectives: Integration with Existing Tools: We prioritize integrating with existing market tools (both free open source and pay-per-use) rather than reinventing the wheel. This approach not only accelerates our time to market but also enhances ...

I am in need of a highly skilled web developer to create a professional online portfolio that showcases the range of my freelance services. This site will primarily target a general audience, emphasizing my capabilities in web design, graphic design, and content writing. Key Responsibilities: - Develop a visually appealing, user-friendly portfolio website, ensuring seamless navigation and overall quality. - Implement an effective design that highlights my diverse skill set and experience in web design, graphic design, and content writing. - Ensure the website is accessible on various devices and browsers, and optimized for fast loading speeds. Ideal Skills: - Proficiency in web development with a focus on portfolio sites. - Strong understanding of UI/UX principles. - Excel...

...update this app to or to switch over to a new platform which I would expect to be Flutter. That being said the I have attached what I am calling Phase 1.1 improvement spec for the SENSR-LOGR. The updates are rather straight forward but are needed to get these updates to builds that can be published to the App Store and iOS. To be up front with my current situation the mobile dev group I have been working with previously is trying to tell me that to implement these Phase 1.1 updates the whole app needs to be converted to and it will add a large cost to what has already been proposed for Phase 1.1. From everything I have read there is NOT a requirement to update immediately to just to make updates to existing Xamarin Apps to be able to publish to the App...

I'm seeking a blockchain expert with proficient knowledge and practical experience in Ethereum to build a Decentralized Application (DApp) with the aim of serving the voting industry. Key Responsibilities: - Develop, design and test the Ethereum DApp - Ensure the application is secure and user-friendly - Maintain and improve the application constantly - Deploy the DApp on Ethereum network Necessary Skills: - Extensive knowledge of Ethereum blockchain, as well as related tools and technologies - Experience in coding Smart Contracts - Proven experience in creating DApps, ideally in the voting or related sectors - Excellent problem-solving skills - Detail-oriented with strong analytical skills If you have a keen understanding of the challenges linked to blockchain deployment and a ...

I'm looking for a talented iOS app developer to create a sports game app with gameplay like poker to poker, supporting both single player and multiplayer modes. The app's main concept is to blend the thrill of poker with the dynamics of a sports game. The project will involve: - Design and implementation of the gameplay mechanics - Creation of the app for iOS platform - Integration of both single player and multiplayer modes - Ensuring smooth performance and user-friendly experience Ideally, you have experience in developing games for iOS, especially in the realm of sports or card games. Knowledge of multiplayer server integration is a plus. Your creativity in merging poker and sports gameplay will be highly valued.

I'm in need of a skilled PHP developer who can handle a custom project. The project involves using PHP Basically i need a plugin. please apply with your portfolio of similar projects and detail your experience with PHP, particularly in custom web applications. Rest i will explain by chat.

We are seeking a highly skilled and experienced developer to work on our in-house imaging and processing software stack. The client side of the stack runs in a network-booted Linux environment and is written as a combination of BASH scripts and Python programs. Its responsibilities include disk formatting and cloning, as well as hardware inspection and reporting. It is driven by an operator using a text-based UI. Key Responsibilities: - Collaborate with us to understand the intricacies of the stack and the specific requirements for supporting newer generations of computers, such as GPT partitioning and UEFI instead of legacy BIOS. - Incorporating enhancements to support newer generation computer systems embodying GPT partitioning and UEFI over the previous BIOS. -Successful adapt...

I'm in need of a GrapeJS developer to customize templates, adding new features, and troubleshooting issues. Ideal Skills and Experience: • Proficient in GrapeJS • Experienced in adding new features

We are looking for talented freelance writers to generate engaging and innovative ideas for social media posts. If you have a knack for crafting compelling content and can consistently generate fresh ideas, we want to hear from you! Job Description: >> Create high-quality, original content for social media posts >> Generate creative and attention-grabbing ideas for various platforms >> Collaborate with the marketing team to ensure content aligns with brand voice and objectives Payout: 80 INR per social media post Requirements: >> Strong writing skills with a keen eye for detail >> Ability to generate unique and captivating ideas >> Familiarity with different social media platforms and their respective best practices >> Self-motivated an...

Exciting opportunity for a proficient Python developer to craft a purposeful web application. Primary Responsibilities: - Develop a web application primarily focusing on: * User registration and login system * An efficient billing system connected to the login setup Skills & Experience: - Proficiency in Python is crucial - Solid understanding of web applications and their development - Past work with user registration and billing systems will add significant advantage - Appreciation for detail to ensure a seamless user experience Your role will be pivotal in the development of this essential application. If this seems like your kind of challenge and you have the necessary skills, please bid. Looking forward to reviewing your proposals.

I'm in need of a skilled Java developer who has experience in creating desktop applications. Specifically, I'm looking for someone to help me design a Application for my chrome based Kitchen Display System software. Key Points: - Proficiency in Java: Your expertise in Java programming is essential for this project as it will be the primary language used for the development. - Desktop Application Experience: Experience in creating desktop applications is a must. It would be beneficial if you have worked on similar projects in the past. - Kitchen Display System Knowledge: An understanding of the features and requirements of Kitchen Display Systems would be a major advantage. - Collaborative and Reliable: I'm looking for a freelancer who is communicative, reliable and ...