Database web design contracts jobs
I need a developer who is proficient in both the Solana blockchain and Web3. Specifically, I'm looking for the following: - Experience with Solana blockchain: I require someone who has hands-on experience working with Solana, including creating and managing smart contracts on this platform. - Solidity programming: Proficiency in Solidity programming is a must for this project. You should be able to write efficient and secure smart contracts. - integration: I require a developer who is skilled in integrating with the Solana blockchain, enabling seamless interaction with decentralized applications. Additionally, you should be able to communicate and collaborate effectively, keeping me updated on the progress of the project. Your knowledge in both the blockchain and Web...
I'm seeking a skilled database developer to help me successfully migrate my database from .NET Framework 4.8 + EF6 + AspNet Identity to .NET 6 + EF Core + Identity. The database size is small - less than 1 GB, but it's crucial that user data is meticulously preserved during this transition. Key Tasks: - Perform data migration without any data loss. - Ensure the user login system and roles functions seamlessly in the new system. Ideal candidate should have: - Proven experience in .NET Core and EF Core migrations. - Strong attention to detail, particularly regarding user data. - Proficiency with user login systems in a .NET environment. Attached is the project source.
Please apply only...I'm seeking a highly skilled blockchain developer to create first-rate smart contracts for an upcoming project. Though the specifics of the transactions that these smart contracts will be used for hasn't been decided yet, you'll be required to produce high-quality, robust, and efficient code. Key responsibilities will include: • Identifying and defining the requirements for the smart contracts • Creating and implementing the smart contracts Ideal candidates will have: • Proven experience in blockchain development • Extensive knowledge of smart contracts development • Ability to work independently and take initiative • Excellent problem-solving skills Please detail your experience with cr...
I'm actively seeking a Hyperledger Fabric expert who can proficiently fill in the gaps of this project: - You may be tasked with an array of responsibilities such as development of smart contracts, network setup and configuration, and chaincode deployment. - It's uncertain at this point whether the goal will be to develop a new Hyperledger Fabric network, join an existing one, or something else. - The exact purpose of the project is not currently defined, but application areas may include supply chain management, financial transactions, or identity management. The ideal freelancer for this project will have proven experience and demonstrated skill in all areas of Hyperledger Fabric, adaptability to evolving project requirements, and the ability to effectively communic...
I am in need of an experienced professional who can work hand in hand with me in exporting my old MySQL database into my new Node.js website. There are a few discrepancies in column names that need attention, so attention to detail is crucial. This is a personal project, and the chosen freelancer should be comfortable providing remote assistance through anydesk, and maintaining open communication over a call throughout the duration of the task. I will personally guide you through the necessary steps and the specific level of accessibility that should be set for the new database. Ideal skills and experience: - Solid understanding of MySQL - Experience in Node.js website development - Exceptional problem-solving abilities - Excellent communication skills - Ability to follow...
I'm looking for a skilled software engineer. THi...task is too large for excel power query, however i want it to operate in a similar fashion. The main purpose of this project is to develop a self-updating database of every racehorse in the state of NSW, Australia, via the website. Key tasks and responsibilities: - Determining the best platform for the software (Web-based/Desktop-based/Mobile application). - Creating a software solution that will automatically update and manage a database of racehorses. Skills and Experience: - Proficiency in at least one high-level programming language i.e., Java, Python, C++ - Experience with automation software - Familiarity with database management - Ability to recommend best software platform based on project requi...
I am in need of a freelance MIS Executive with strong skills in data analysis and database management. Responsibilities: - Conducting detailed data analysis using the provided tools - Proficiently manage and maintain a database Ideal Candidate: - Proficient in Microsoft Excel and SQL Server - Experience in database management and data analysis - Strong analytical skills - Excellent attention to detail This project requires someone who can work independently, has a good eye for detail, and can deliver high-quality results. A background in MIS or similar field would be a big plus.
...code for payment. 17. Track payment status via UPI acknowledgment. 18. Generate PDF invoice for successful transactions. 19. Record order details in the backend including customer and restaurant information. 20. Develop a dashboard for monitoring user, order, and restaurant data. I'll need all these functionalities seamlessly integrated into the system. Your role will be vital in ensuring the database, UI, and algorithms all function optimally together....
We are looking for an experienced sales specialist knowledgeable about the food influencing market. Spotting potential influencers based on engagement rates and establishing agreements with them will be your main responsibility. Tasks: - Identify potential food influencers with high engagement rates. - Present our project and build relationships. - Secure and return signed contracts. Skills & Experience: proven success in sales. familiarity with influencer marketing, particularly in the food industry. outstanding negotiation and communication skills. i am looking for a sales specialist who can present our offer for food influencers. Project : Our site can pay influencer membership, and create a live streaming event with our customer consultant, Each influencer has a consultan...
I am looking for a professional who could potentially help me create accountant Databases. Prefer for recent ready database. Ideal skills and experience: • Data entry • Report generation • Customizable fields Contact urgent.
I'm in need of a skilled developer who's experienced in crafting smart contracts on Hyperledger Fabric. The main focus of this project will be to create a smart contract that ensures the authenticity and verification of news articles. Key responsibilities will include: - Developing a smart contract on Hyperledger Fabric specifically tailored to the authenticity and verification of news articles. The ideal candidate for this role should have: - Proven experience in smart contract development, ideally on Hyperledger Fabric. - A solid understanding of blockchain technology and its real-world applications. - Specific experience in developing smart contracts for authenticity and verification purposes would be a huge plus. Your work will play a crucial role in ensurin...
It is basically an app that helps the sales see the account profile data that is attached. We already have the designs ready, workflow will be decided in collaboration with the freelancer. Expertise required is app development and not design
I'm in need of a seasoned developer who can design a dynamic, responsive, and custom database synchronization system. Key Requirements: - Custom Data Mappings: The system should allow the designation of unique data mappings for seamless sync across various platforms. - Conditional Sync: The system should support conditional sync to ensure only relevant data is shared. - Automation: The synchronization process should be automated to reduce manual intervention and enhance efficiency. Platforms and Websites: The system should sync data with: - Social media platforms - Mobile devices Ideal Freelancer: - Proficient in database synchronization and mapping - Experienced with integration across websites and devices - Capable of designing automation processes - Knowled...
...network in the industry and can secure the best opportunities for my career. - Music Promotion: The ideal candidate will have a good understanding of the hip-hop scene and what strategies work best to promote my music. This could involve digital marketing, PR campaigns, and other means of getting my music out there. - Contract Negotiations: An important aspect of the role will be managing my contracts with labels, promoters, and other industry professionals. I need someone who is skilled in negotiation and has a good understanding of the legal aspects of the music industry. Communication: I prefer to communicate with my manager via text messages through my phone. I'm looking for someone who is responsive and can keep me updated on all aspects of my career. Ideal Skills and...
I'm in need of an expert developer who can create a presale smart contract based on EVM. This is a key component of my project and I'm looking for a skilled professional who ...create a presale smart contract based on EVM. This is a key component of my project and I'm looking for a skilled professional who can deliver a top-notch solution. Key Requirements: - Develop a presale smart contract on the EVM platform. - Implement essential functionalities required for a successful presale. Ideal Skills: - Proficiency in developing smart contracts on EVM-based platforms. - Experience in creating presale smart contracts. - Understanding of the blockchain and cryptocurrency space. Please note that I skipped a few questions in the initial project setup. Feel free to r...
Follow directions in video. Maidstone and Unity - Janessa and Kenzie Turtleford/Shellbrook/North Battleford - Juan David and Eduardo Meadow Lake - Cody/Tristan
...and experienced developer to create a simple smart contract for a game on the Ethereum blockchain. The primary functionality that this contract should include is a robust player's betting system. The following criteria should be met: - Advanced knowledge and understanding of Ethereum and its related programming languages (Solidity, Vyper). - Proven experience in designing and developing smart contracts, ideally relating to gaming or betting systems. - Ability to integrate the smart contract with the game to ensure accuracy and fairness. - Implement a consequence system where players experiencing a failed bet will suffer loss of game assets. Your bid should highlight your experience in the above areas, and examples of past projects would be immensely helpful. Ability to wo...
I'm seeking an expert in developing smart contracts on the Binance Smart Chain platform. The primary purpose of this smart contract will be to handle financial transactions. Security is of utmost importance to this project, and therefore the smart contract must have provisions for very high security. Ideal Skills and Experience: - Experience with Binance Smart Chain platform. - Expertise in smart contract development. - Proficiency in ensuring high-level security features. - A solid understanding of financial transaction management. This project requires someone who is meticulous and considerate of the potential security risks involved. I'm looking forward to working with someone who can provide a secure and robust solution that benefits my business transactions.
...goal is to automate daily updates of the website's database. Key Requirements: - Daily database updates: The website should automatically update its database every day. - Products and prices: The database should include technology products, such as electronics and computer hardware. - Design and layout: The website should be visually appealing and user-friendly. - Database type: The database can be either SQL or MySQL. Ideal Skills: - Proficiency in SQL or MySQL - Experience in e-commerce website development - Strong understanding of front-end design - Ability to automate database updates - Expertise in handling technology products Your proposal should include: - Your experience in similar projects - Your approach to...
...of a virtual assistant to support my real estate wholesaling company. For less than 20 hours per week, you would provide important backend support that helps to streamline our operations. Budget is strictly 80 per week. 3 hours per day mon-fri. Hours can be split throughout the day Responsibilities: * manage LinkedIn/email inbox * create templates and send out deals to cash buyers * Prepare contracts * provide customer service to cash buyers * data entry Ideal Skills and Experience: * Excellent research skills * Experience in wholesale real estate processes and contract preparation * Proficient in using CRM software Please only apply if you're comfortable using CRM software for task management. This is a key requirement. Preference will be given to assistants who have r...
...professional who can smoothly transition my old database into the new one for my website. There are some extra columns in certain tables in the new database, so understanding the essence of the project is pivotal. Here's what I need assistance with: 1. Importing Data: I have a detailed list of specific tables and columns which need to be brought into the new setup. Your work will heavily rely on this list. 2. Data Combination: While importing the data, some of it requires merging. I won't be able to guide you on how this should be done, so it will fall under your professional judgment. Your proven experience and innovative strategies will come into play here. I am hoping to find someone who has extensive experience in MySQL, data merging, and database...
We are seeking a professional software application firm experienced in providing cloud-based payroll solutions for international organizations. The aim is to streamline our farming organization's payroll processes, saving time and resources for HR and Finance teams. Functional Requirements...upon delivery. Proposed Composition of Team: Demonstrated competency and experience in similar projects, with the capacity to support implementations across multiple countries. Eligibility, Qualification, and Experience Required: Proven expertise in providing cloud-based payroll solutions for international organizations, with a minimum of 5 years relevant experience and evidence of similar contracts. Find the terms of reference in the attached. Please only apply if you have the specif...
...relational database design. The primary goal is to deepen my understanding and skills in E-R modeling, functional dependency theories, and database norms, particularly: * Identifying entities and relationships * Applying E-R modeling and normal forms for a well-designed relational database. The chosen candidate should be proficient in the aforementioned areas, plus have the capability to clarify how to use these skills to identify performance issues, validate data integrity, and evaluate scalability. The project scope encompasses E-R modeling, identifying entities and relationships, and applying normal forms. Ideal Skills: * Advanced knowledge in RDBMS * Proficiency in E-R modeling * Understanding of functional dependency theories * Experience in applying...
We are lo...Responsibilities Identify and develop new business opportunities with current expertise, networking, lead generation, proposal submission, and follow-up appointments. Researching the prospects and generating leads. Effectively communicating the value proposition of through proposals and presentations to the prospects. Lead nurturing, engagement, and closing sales. Persuade clients to sign search contracts on an exclusive and/or retainer basis. Provide accurate and detailed forecasts on weekly/ monthly funnel of identified and proposed customers to meet and exceed sales requirements. Email coordination/timely update on whatsapp group by managing query flow of calls/emails/messages from candidate/internal team/clients. Stakeholder Management and Negotiation
I am seeking a PHP developer who is experienced in frontend development, and an expert in PHP frameworks and MySQL database integration. The focal point of the project is database management. • Main responsibility of the PHP developer will be to build new databases, thus experience in this is essential. • A background working with PHP frameworks and MySQL is crucial for success in this role. • The role also entails some front-end development tasks. Successful applicants will illustrate these skills throughout their portfolio in relation to past projects. If you are a self-starter with a penchant for database management, I look forward to receiving your bid.
I'm requiring aid in managing and optimizing my SQL database. This database is currently handling a range of information including product details, customer details, and order details. Key Tasks: - Improve the existing SQL database - Ensure efficient handling of product, customer, and order data Ideal experience and skills: - Proficiency in SQL queries - Experience in database management - Familiarity with inventory management processes, specifically handling a limited range of 20 different products. This project will require a keen attention to detail and a comprehensive understanding of SQL database manipulation.
...clients' business goals, pain points, and challenges. Solution Development: Collaborate with internal teams to develop customized digital marketing solutions tailored to clients' specific needs. Present proposals and recommendations to clients, addressing how our services can solve their challenges and achieve their objectives. Negotiation and Closing: Lead negotiations on pricing, terms, and contracts to secure new business opportunities. Close deals effectively while ensuring client satisfaction and long-term partnerships. Relationship Management: Cultivate and nurture relationships with clients to foster repeat business and referrals. Serve as the primary point of contact for clients throughout the sales process and beyond. Market Intelligence: Stay updated on in...
...areas: database design and query optimization. Key Responsibilities: - Database Design: I'm looking for assistance in designing the database to ensure it's well-structured and optimized for performance. - Query Optimization: I need an expert who can help in fine-tuning our queries to ensure they're efficient and have minimal impact on our database. Key Skills and Experience: - Proven experience in MongoDB database design and query optimization, especially for small datasets (less than 1 GB). - Solid understanding of indexing strategies and their role in improving query performance. - Ability to communicate effectively and work collaboratively to understand our specific needs and tailor solutions accordingly. - Fa...
...to lock their tokens in the contract. - Reward Distribution: Rewards should be distributed based on the duration for which the tokens are staked. The longer the staking period, the higher the reward. Ideal Skills and Experience: - Proficiency in Solidity: As per my preference, the smart contract should be written in Solidity. - Blockchain Development: Extensive experience in developing smart contracts and deploying them on the Ethereum mainnet. - Understanding of Staking Mechanisms: A solid grasp of staking mechanisms, particularly those that reward based on the staking duration. - Testing and Deployment: Capable of integrating the developed smart contract with a UI and testing it thoroughly before deploying it on the mainnet. Additionally, if you have experience in building c...
I'm in need of a comprehensive business owner database specifically in Tamilnadu, Chennai. The database should include detailed information of business owners Contact number, Email ID from various industries like GST Filling Database, Distributors, Industries, Dealership and more
I need a fast turnaround to correct error messages in my PHP code and database. The main goal of my PHP application is to upload content to the database and ensure the site displays it correctly. Key Responsibilities: - Fixing error messages in PHP code - Addressing database issues - Ensuring smooth content uploading functionality - Ensuring the site can retrieve and display content from the database Ideal Skills and Experience: - Proficient in PHP - Strong understanding of database management - Prior experience in troubleshooting and fixing error messages - Ability to work fast and deliver under tight deadlines.
I'm looking for a task-oriented individual who can assist me with saving documents from an online database. Your assignment would primarily revolve around focusing on documents and seamlessly saving them off. Key responsibilities: - Download documents with my full permissions. - Make sure that all downloaded files are in audio file format and labelled correctly. The ideal candidate will have: - Relevant experience and proficiency in saving files to dropbox. - Excellent attention to detail ensuring the correct files are stored. May be 1-2 days of work.
...the MERN Stack. The key features of the front end design include a responsive design, user-friendly navigation, and custom animations. For the backend it would be clean, and fast high quality code with comments and good organisation and readability. The ideal candidate will have experience working with tight deadlines, provide constant high quality updates and be able to deliver quality work within a short timeframe. Bids: Please provide 3 links to your recent MERN/MEAN projects and provide some documentation or proof that you were the original developer of those 3 websites please. Tech: Front-end Framework: React.js with and State Management + Typescript Styling: Tailwind CSS Back-end Framework: Node.js with Database: MongoDB Goals: Build a cryptocurrency ga...
...responsible for designing and implementing blockchain solutions using React and Node.js. Your primary focus will be on developing smart contracts, building decentralized applications (DApps), and integrating blockchain technology into existing systems. The ideal candidate should have a strong understanding of blockchain concepts, experience working with React and Node.js, and knowledge of smart contract development. If you are passionate about blockchain technology and eager to contribute to cutting-edge projects, we would love to hear from you. Responsibilities: - Develop and implement blockchain solutions using React and Node.js - Design and develop smart contracts - Build decentralized applications (DApps) - Integrate blockchain technology into existing systems...
...expertise in securing smart contracts using a combination of processes (ex: code reviews, audits), tools, and techniques. Bonus if you have a Security background. If your someone that's developed and shipped DeFi smart contracts holding significant value, we want to hear from you! This is a fully remote role and you'll be working in a fully distributed team with members across the globe. Responsibilities You'll implement new ideas, designing and testing complex DeFi smart contracts You'll take authority in your team checking your colleagues code for correctness and security Work with external security firms and implement their feedback Build tools and monitoring to ensure nominal operation Closely collaborate with cross-functional teams (enginee...
...GPU-sharing platform. This long-term project requires a candidate with extensive expertise in AI, blockchain technology, and systems infrastructure to drive the implementation and scalability of the platform. More than 5 years of experience. Responsibilities: Design and develop a Layer 1 blockchain infrastructure optimized for task distribution in decentralized environments. Implement and maintain AI services using frameworks such as TensorFlow, PyTorch, Caffe2, and MXNet. Develop blockchain components, focusing on smart contracts and decentralized applications (DApps) integration. Manage cloud-based and on-premise GPU nodes, including deployment, scaling, and monitoring. Ensure system reliability and scalability through effective DevOps practices, including CI/CD pipeli...
...creation and deployment of a decentralized AI and GPU-sharing platform. Your primary goal will be to combine AI, blockchain, and systems infrastructure knowledge to create a high-performance and secure platform that's fully scalable. Responsibilities: Design and develop a Layer 1 blockchain infrastructure specifically optimized for task distribution in decentralized environments. Design, implement, and maintain AI services using popular frameworks such as TensorFlow, PyTorch, Caffe2, and MXNet. Develop blockchain components, focusing on smart contracts and decentralized applications (DApps) integration. Manage cloud-based and on-premise GPU nodes, including deployment, scaling, and monitoring. Ensure system reliability and scalability through effective DevOps...
...crucial database issue with my website built on Node.js. There are certain missing tables that cause the application to crash whenever specific buttons are clicked on the site. Key Details: • The crashing issue is experienced when the Login button, Submit form button, or the Add to cart button is clicked. • Due to these unsolved errors, the terminal indicates that a certain table name is not found. Ideal Skills and Experience: • Solid background in solving database issues in Node.js platforms. • Experience in working with missing tables and rectifying database errors. Application Requirements: Freelancers interested in this project should include detailed descriptions of their previous and related experiences in their application. The ulti...
I need a specialist in metaverse blockchain technology to assist with the development of my virtual reality project. Our team is focused on several key facets: - Developing smart contracts - Creating a decentralized exchange (DEX) - Establishing an NFT marketplace - Designing farms, pools, staking mechanisms - Building a bridge - Implementing trading Our preferred platforms are Ethereum, Binance Smart Chain, and Solana. We're also interested in incorporating advanced order types within the DEX. The ideal freelance partner would offer: - Significant experience in blockchain development, specifically with Ethereum, Binance Smart Chain, and Solana, - Comprehensive understanding of DEX and advanced order types, - Proven experience in setting up NFT marketplaces, staking, and...
I'm seeking a professional with a strong background in Excel to develop a keyword search tool for an Excel database. This tool will primarily be used for filtering data and linking to articles hosted on a network. Key Requirements: - Experience creating and managing Excel databases - Proficiency in implementing keyword search tools in Excel I would like the sheet to have a Main/Search Page and another page for the database. I want to be able to add new entries to the database section and have them be searchable on the main page. I want to be able to create new searchable keywords on the database page and have them populate and be searchable on the main page. I would like to be able to enter multiple search terms into the search box to narrow the results....
I'm running a new PHP script on Linux and it's not pulling data correctly from an MSSQL Database. Since the script is new, I'd appreciate some help identifying what went wrong. Skillsets and Experience Needed: - Proficiency with PHP and MSSQL databases - Experience troubleshooting PHP script issues in a Linux environment - Experience with new script debugging - Knowledge of database connectivity issues and their solutions - Ability to communicate complex technical issues clearly
I'm looking for a skilled freelancer to assist with text data entry from online sources into a database. Key Responsibilities: - Inputting data from online sources into a database - Ensuring accuracy and consistency in data entry The ideal candidate should have: - Proven experience in data entry, particularly from online sources - Strong attention to detail to ensure accuracy - Proficiency in database entry methods This is a straightforward project that needs a reliable, detail-oriented individual.
I'm seeking a Laravel expert to help resolve a database connection error I'm experiencing on my website. This error occurs specifically when trying to access certain pages. Key requirements: - Experience with Laravel: You should have a strong understanding of Laravel's structure, especially concerning database connections, in order to diagnose and resolve this issue efficiently. - Troubleshooting Skills: You should be adept at identifying the root cause of the error, whether it be an issue with the code, configuration, or server setup. - Efficient Communication: As I have full access to the website's server and database configuration files, you may need to collaborate with me to access the necessary resources.
...is crucial for this project's success. - Smart Contract Development: I am in need of professionals who have extensive experience in developing smart contracts. The successful candidate would be responsible for designing and implementing the smart contract functions necessary for the P2P transaction system. Ideal skills and experience for this job include: - Proficiency in blockchain technology and token/coin creation. - Strong understanding and experience with Binance Smart Chain. - Proven track record in designing and deploying smart contracts. Smart Contract based ICO Token Development (BEP20) Whitepaper & Roadmap Logo Design & Development Buy Token functions through the website WalletConnect and Metamask Wallet support ChatBo...
...Pool Interface: A user-friendly interface for our 2 staking pools. Design preferences for this project lean towards a modern and minimalist aesthetic. The front end should also integrate a Wallet Connection feature, to ensure a smooth user experience. I'm looking for a professional who is well-versed in web3 technologies, particularly in developing DEX front ends. Experience in creating interfaces for swap, add liquidity, and staking functionalities is a plus. Skills Required: - Proficiency in web3 development - Familiarity with decentralized exchange platforms - Strong understanding of UI/UX design principles - Previous experience in integrating wallet connections - Ability to deliver a modern and minimalist design. NOTE: Our DEX is on a custom EVM chai...
...Aspects: - Blockchain: Prior experience with Ethereum and Bitcoin is a must. Hyperledger Fabric is not required. - Frontend: Proficiency in React is necessary. Features Needed: - The project will involve implementing various functionalities such as NFT, token, smart contracts, minting, and staking. Previous experience with these features is highly desirable. Skills & Experience: - Proficiency in Ethereum and Bitcoin blockchain development. - Strong experience with React frontend. - Prior projects involving NFTs, tokens, smart contracts, minting, and staking. - Excellent understanding of blockchain technology and its applications. - Ability to work independently and deliver high-quality code. Please only apply if you have the necessary skills and experience. This pro...
...Aspects: - Blockchain: Prior experience with Ethereum and Bitcoin is a must. Hyperledger Fabric is not required. - Frontend: Proficiency in React is necessary. Features Needed: - The project will involve implementing various functionalities such as NFT, token, smart contracts, minting, and staking. Previous experience with these features is highly desirable. Skills & Experience: - Proficiency in Ethereum and Bitcoin blockchain development. - Strong experience with React frontend. - Prior projects involving NFTs, tokens, smart contracts, minting, and staking. - Excellent understanding of blockchain technology and its applications. - Ability to work independently and deliver high-quality code. Please only apply if you have the necessary skills and experience. This pro...
...issues with my Node.js site, I require an expert in database management to remap the database. Specifically, clicking on 4-5 specific buttons frequently crashes the site, displaying an error of "table not found". Understandably, this is impacting the usability and overall user experience of the website. The key project objectives include, but are not limited to: 1. Diagnosis and rectification of the error causing the site crash. 2. Remapping of the website database to eliminate the current recurring issue. 3. Arguably most vital, is the safe retainment and integration of the old member data within the newly rectified database. Ideal applicants should be proficient in Node.js and database management, especially handling and rectifying such ...
I'm in need of a skilled .NET developer to create a functional web application that mainly handles user registration, login, and database management. Key Requirements: - User Registration and Login: The application should have a robust system for users to sign up, log in, and manage their accounts securely. - Database Management: Proficient database management within the application is a must. This includes data storage, retrieval, and manipulation. Additional Information: - External Integrations: There is a possibility that additional integrations may be required in the future. Experience with integrating external systems and APIs would be beneficial. - User Roles and Permissions: The application may need to support multiple user roles and permissions. W...
