React front end developer job description jobs

I'm in search of a PHP Developer with a proven track record of developing comprehensive ERP Solutions for the construction industry. Key Modules Required: - Project Management - Cost Estimation - Procurement Specific Features for Project Management: - Task Management: The system should allow for easy task assignment and monitoring. - Resource Allocation: It should have a robust system for allocating and tracking resources. Specific Requirements for Cost Estimation: - Integrated Cost Database: The system should have a vast and well-organized cost database. - Calculation Formulas: It should accommodate complex estimation formulas. - Reporting and Analytics: The ability to generate detailed reports and analytics is crucial. Ideal Candidate: - Should have a strong background ...

I'm looking for a skilled Python backend developer to enhance an existing backend system for my project. Key Responsibilities: - Enhancing the existing backend system: Your primary responsibility is to enhance the functionality of the current system and optimize its performance. - Integrating SQL/NoSQL Databases: Your expertise in SQL/NoSQL databases is crucial to ensure smooth integration and efficient data handling. - Experience with Python and Minio: If you're familiar with Minio that's a big plus, but Python is the key language you'll be working with on this project. Ideal Candidate: - Proven experience in enhancing existing backend systems. - Proficient in working with SQL/NoSQL Databases and designing queries. - Strong Python skills are a must. - Experie...

I need a unique and engaging front shirt text design with a xerox effect. It should match and complement the back design. The font style is up for creativity, so I'll rely on your expertise for this. The design should: - Be placed in the middle of the front shirt. - Feature a vintage or bold style that fits well with the xerox effect. - Utilize black color to maintain consistency with the back design. - Be striking and visually appealing, contributing to the overall aesthetic of the shirt. BRAND NAME IS DELINQUANT Ideal Skills and Experience: - Proficiency in graphic design, particularly for clothing. - Experience with vintage or bold design styles. - Ability to create and apply a xerox effect. - Strong sense of color coordination and design placement...

I'm looking for an experienced Java developer who can integrate a cloud-based database into my project. Ideal Skills: - Strong proficiency in Java - Prior experience with database integration - Specifically, experience with cloud-based databases, Microsoft Azure in particular, is a big plus The Project: - Your primary task will be to integrate Microsoft Azure, a cloud-based database, into an existing Java project. - The project already has a well-defined structure and the database will serve as a key component. - The database integration should be secure, efficient, and scalable, meeting the highest standards. - There will be no need for user authentication or API integration, as this project is solely focused on database integration. Please only apply if you have good ex...

I need a unique and engaging front shirt text design with a xerox effect. It should match and complement the back design. The font style is up for creativity, so I'll rely on your expertise for this. The design should: - Be placed in the middle of the front shirt. - Feature a vintage or bold style that fits well with the xerox effect. - Utilize black color to maintain consistency with the back design. - Be striking and visually appealing, contributing to the overall aesthetic of the shirt. Ideal Skills and Experience: - Proficiency in graphic design, particularly for clothing. - Experience with vintage or bold design styles. - Ability to create and apply a xerox effect. - Strong sense of color coordination and design placement. -most important part It should be ext...

I'm looking for a qualified professional to assist with the migration of our Hubspot data into Microsoft Dynamics 365 Sales. Key Deliverables: - Migrate Contacts, Companies, Tasks, Activities, Deals, and Calls from Hubspot to Microsoft Dynamics 365 Sales. There are 10,000 contacts. - Ensure all data relationships and custom fields are accurately mapped and migrated, as well as deals pro...with data migration between CRM systems, specifically from Hubspot to Microsoft Dynamics 365 Sales. - Strong understanding of custom fields and data relationships within CRM systems. Please be ready to provide examples of similar projects you've completed in the past, as well as a detailed plan on how you intend to execute this data migration. Start you proposals with I HAVE READ YOUR PROJECT...

I'm looking for an experienced full-stack and OAuth expert to integrate OAuth authentication for Tiktok , TikTok into existing React.js applications. You are responsible for implementing a seamless user authentication experience that allows users to connect their social media accounts to our platform. If authentication is successful, the user's social media profile information should be safely stored in the database. For example, when the user presses the "Tiktok connection" button, the Tiktok user information input field using Auth0 appears, and when entered, the information is changed to the "connected Tiktok". If you successfully complete this task, I will award you development of all parts of this project. I attached a screenshot Looking forward to work...

I'm in need of a proficient Wordpress developer to help me build a business website. I already have a specific theme in mind, so your role will be to ensure the site is not only created with this theme but also tailored to fit my business needs. Key responsibilities include: - Building a professional and user-friendly business website that aligns with the chosen theme - Including necessary functionalities such as a contact form, subscription/sign-up form, gallery/portfolio, and Google mapping skills - Ensuring the site is responsive and visually appealing - Providing recommendations on the theme if necessary and integrating my style preferences You should have: - Proficiency in Wordpress website development - Strong understanding of web design and user experience - Experienc...

I have a Python script that needs integration with a Telegram bot. The requirement is to connect the code with the Telegram bot to send questions from the Chegg website. Key tasks: - Integrating the existing Python code with a Telegram bot to send questions from the Chegg website - Automating the assignment of student IDs for each Chegg website task The ideal freelancer should have: - Proven experience in Python programming - Previous work with Telegram bot integration - Familiarity with Chegg website tasks and automation - Good understanding of API integrations Please share your relevant experience and any insights into how you plan to approach this integration.

I'm looking for an experienced WordPress developer, who can provide a comprehensive training for our developer. This project is unique in that we already have an in-house developer who is brand new to WordPress. The goal is to get them from beginner level to a point where they can comfortably handle WordPress development tasks. Key aspects of the training: - Explanation of WordPress architecture and functionality - Hands-on sessions covering Theme and Plugin development - Insights into customization and optimization best practices - Additional tips and tricks for effective WordPress development Ideal candidates should have: - Extensive and proven experience in WordPress development - Strong teaching skills and ability to explain complex concepts in simple ter...

I am looking for an experienced app developer to build a mobile app for both Android and iOS platforms. The primary goal of the app is to facilitate e-commerce activities. Key Requirements: - Develop a mobile app for Android and iOS platforms - E-commerce functionality - Integration with PayPal for payment processing Ideal Skills: - Proficient in app development for both Android and iOS - Prior experience in developing e-commerce apps - Familiarity with integrating PayPal for payment processing

Tasteat is an innovative food delivery platform specifically ...project could lead to a permanent collaboration for all our design needs. Requirements: design should be modern and inviting, appealing to tourists and business travelers. should be minimal, not intrusive, and able to blend in from a budget hotel to a luxury villa. the QR code is central and easily scannable (black and white color for the QR code). a brief, enticing description of 's benefits, like 'Scan me if you're hungry', 'Explore local tastes', or 'Discover Local Eateries.' Use brand colors and logo, which will be provided (attached logo). Deliverables: • Design approx. 13cm x 18cm with a QR code 40mm x 50mm • High-resolution PDF suitable for printing. &bull...

I'm seeking a proficient MERN Full Stack developer to address the issues highlighted in the JIRA file attached to this project. Your primary responsibility will be to resolve these issues in a timely and efficient manner. The ideal candidate will have the following skills and experience: - Proficiency in the MERN (MongoDB, , React.js, Node.js) stack - Familiarity with JIRA and experience with its issue tracking system - Strong problem-solving abilities and attention to detail - Proven experience in resolving web issues - Ability to work autonomously and meet deadlines Please note that I have not outlined a specific deadline for this project - I am looking for a developer who can address these issues promptly. If you believe you can also implement new features, please le...

I'm requiring a proficient Java developer for a college project. The main task will be building a web application along with database integration. I'll need you to implement vital functionalities, such as: - A user registration panel - A user login page - Fee structure - Contact us section - Admin as well as user registration option - Subjects and courses - Basic website navigation functions For the front end, HTML and CSS skills are necessary to render a clean and minimalist design. It's vital you're experienced in these domains and can provide examples of your past work. Looking forward to your proposals.

I'm in need of an Android developer with experience in Java and Kotlin who can handle issues with fingerprint scanner devices like Futronics FS80H and Mantra MFS100 on Android 14. Key Responsibilities: - Diagnose and resolve compatibility issues with the latest Android 14 version. - Ensure the scanner can correctly detect fingerprints. - Ensure the scanner is responsive and functions as expected. Ideal candidates should have: - Proven experience working with fingerprint scanner devices. - Expertise in Java and Kotlin for Android development. - Strong knowledge of Android 14 and its compatibility requirements. - A track record of troubleshooting and resolving technical issues. This is an urgent project, and I'm seeking someone who can deliver results promptly and effecti...

Hi Muhammad A., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I'm in the process of building a project which requires expertise in React, Node.js, and MongoDB. The key features of the application are: - User Authentication - Real-time Data Updates - Database Integration - CRUD Operations The CRUD operations specifically required are Read, Update and Delete. Currently, the design/wireframe of the project is in progress. Skills and Experience: Looking for an expert with comprehensive working knowledge and experience in: - React.js for UI development - Node.js for Server-side scripting - MongoDB for Database Management - Implementation of CRUD operations in an application - User authentication, real-time data updates and database integration The right person needs to be comfortable working with an in-progress design and enhance it fu...

I am in need of an experienced app developer who can build a robust e-commerce app for iOS and Android. This should be user-friendly and targeted towards general users. It’s crucial that the app includes a payment module with end-to-end encryption. The ideal candidate would have: - Expertise in both iOS and Android app development - Prior experience with building e-commerce applications - Strong understanding of payment gateway integration, and knowledge of implementing end-to-end encryption - Familiarity with creating seamless user interfaces targeted towards general, non-technical users The envisioned app should ultimately facilitate smooth online transactions, assuring users of their data security. This project may require further mainte...

I'm in the market for a WordPress developer with a keen eye for SEO and design. The project entails the creation of a modern, functional, and responsive website that aligns with our platform's unique requirements. Key Responsibilities: - Creating a highly responsive and modern website on the WordPress platform - Ensuring the website is fully optimized for SEO - Implementing SEO features and practices to improve our ranking Key Requirements: - Strong proficiency in WordPress and front-end development technologies - Proven experience in building SEO-optimized websites - Ability to adapt to our platform's specific needs Your expertise and dedication to this project will play a crucial role in the success of our platform. If you have a proven track record...

I am looking for a backend consultant to help me explore the best strategies for implementing geo-blocking on my simple front end websites. The main focus will be to restrict access from the United States, United Kingdom, and Australia. Key Responsibilities: - Consult on the simplest, effective and efficient method of implementing geo-blocking - Suggest a suitable programming language for the backend development - Strategize on the best ways to maintain the geo-blocking feature - Potentially advise on additional security measures to enhance the geo-blocking The ideal candidate should have: - Proven experience in backend development, particularly in geo-blocking - Strong understanding and experience in security implementation - Excellent communication skills to effectively...

App Developers Query - Template Hi, We're currently seeking a talented app developer who shares our vision and passion for creating a platform helping users improve productivity to achieve their hobbies. If you have experience in start up app development and interested in collaborating with us bringing Hobbi to life, we would love to hear from you! About Hobbi: Hobbi's an innovative solution designed to assist time management enabling maximum productivity to achieve desired goals of hobbies. Our app aims to revolutionise the way our customers interact with their hobbies and self-development. We believe that there is a gap in the market for a comprehensive, user-friendly application that offers a way of planning, tracking and sharing achievements of your hobbies. Key Fe...

Overview: We're seeking a developer to create two distinct applications on Google Cloud's Vertex AI platform: * E-commerce Product Optimization: * Utilize Feedgen with Vertex AI to generate high-performing product titles and descriptions optimized for Google Merchant Center feeds. * Integrate with Google Sheets for seamless data import and export. * Website Meta Tag Optimization: * Develop a custom script on Vertex AI to: * Scrape content from web pages (titles, headings, body text). If scraping is not feasible, allow for manual input of content. * Utilize Gemini to generate SEO-optimized meta titles and descriptions based on the scraped/input content. * Ensure the script can handle both automated scraping and manual content input scenarios. Re...

I'm looking for an experienced OpenCart developer to work on an already installed OpenCart platform. Aspects of the project are still undefined, but it requires someone who can propose and implement a variety of features, potentially including, but not limited to, payment gateways, custom templates, and product catalogs. Ideal Skills and Experience: - Extensive experience with OpenCart - Ability to design and implement custom features - Flexibility to adapt to changing project requirements - Proven track record of successful OpenCart projects - A portfolio showcasing previous work Since design preferences haven't been settled yet, I'll value a candidate that brings creative ideas to the table and works well with feedback. I look forward to seeing your proposals!

I'm in need of a Wix developer who can help me with adding custom features and functionalities to my website. I am trying to do the database structure for this page Each projects will load a list of tasks filtered by six different stages Each task needs to be comleted by the supervisor with acomment, photo/video upload / schedule a future task on calendar Once submitted that task will be read only with an option to edit edit/submit logs of who changed what and when - will be recorded this is the main task And may be will look for an option to create a dashboard to view these tasks status / add documents and projects etc but not essential

We are seeking an experienced full stack developer proficient in Angular, Typescript, Java, and Spring to join our team for an exciting HR Tech project. This project aims to streamline the onboarding process for candidates while enhancing the efficiency of recruitment for companies. Key Features: 1. Onboarding Process: The platform will feature a comprehensive onboarding process for candidates, designed to facilitate a smooth transition into their new roles. This process will consist of four main steps: - Technical Quiz: Candidates will undergo a technical quiz to assess their domain-specific knowledge and skills. - Audio Recording: Candidates will be prompted to record audio responses to predetermined questions, allowing recruiters to gauge communication skills and confidence. -...

I'm in need of a New but skilled web designer to redesign my website with a free theme. Then you also need to delete google tag manager, analytic and console code then readd these. Budet fixed 25-30 GBP Thanks

Integrate a staking smart contract with a React frontend page for interaction. The necessary components including the staking contract, staking react page and token contract have already been prepared. Initially, we will conduct trials on the Sepolia testnet or other testnet to ensure all systems are operational before launching on the Ethereum mainnet. I have already source code for UI. Budget: 1k timeline: 1 week Our staking contract and staking page have been forked from this project: - Staking contract: - Staking page:

I'm seeking a skilled WordPress developer to help enhance my e-commerce website. Key responsibilities: - **Theme Customization**: This involves creating a unique and visually appealing interface that resonates with my brand and enhances user experience. - **Plugin Development**: I require custom plugins to be developed to cater to specific needs of my website. - **Website Maintenance**: Regular monitoring and updating for smooth functioning. The ideal candidate should have: - Proficient in WordPress theme customization - Extensive experience in plugin development - Prior experience in e-commerce website development - Knowledge of e-commerce features like Payment Integration, Product Customization, and Membership Subscriptions. Your expertise will help in making the website...

I'm in need of a skilled website developer for my B2B marketplace. Key Features: - Product catalog - User registration and login - Messaging system - Account authenticity detection - Appropriate matchmaking algorithm - Payment gateway Design Preference: - Professional and sleek Device Compatibility: - Desktop and iOS and android Ideal Skills: - Proficient in website development - Experience with B2B marketplaces - Design capabilities for a professional, sleek look - Familiarity with payment gateway integration - Understanding of matchmaking algorithms for effective business matching.

I'm looking for a WordPress developer who can help me with a one-time content update on my website. The update involves integrating new text content, images/graphics, and videos throughout the site. Key requirements: - Proficiency in WordPress - Capable of handling both front-end and back-end changes - Experience with integrating various types of content If you're a skilled WordPress developer and can help me with this one-time update, please reach out.

I'm in need of an experienced Wordpress developer to build a website for my online community targeted towards professionals. The website should encompass e-commerce functionality, blogging capabilities, and seamless social media integration. Key Components: - E-commerce Functionality: The website should enable the sale of products/services to the community members. - Blogging Capabilities: The site should provide a platform to post relevant and engaging content for the community. - Social Media Integration: The website must be seamlessly integrated with various social media platforms to facilitate community engagement. The ideal candidate should: - Have a strong portfolio of creating similar websites with e-commerce, blogging, and social media integration. - Understand the t...

As a busy business professional, I am in dire need of a competent and time conscious Arabic to English translator based in Riyadh to facilitate verbal conversations during business meetings during 21-22-23rd May 2024 at Saudi Food show. Location: Riyadh Front - Must be fluent in Arabic and English - Prior experience in facilitating business meetings - Knowledge in business terminologies and jargon - Professional, respectful and comfortable in a corporate environment - Must be reliable and able to work under pressure - Prompt and efficient communication skills are imperative Your prowess and proficiency in this field should be commendable. It's about connecting cultures, facilitating business and building relationships.

I need a blockchain expert to develop a supply chain solution for my retail and manufacturing businesses. The system should have the following characteristics: - **Transparency and Traceability**: The system should allow for real-time tracking of goods and assets along the supply chain. It should provide clear visibility and accountability. - **Smart Contracts and Automation**: I need smart contract functionalities to automate certain processes within the supply chain, such as payment upon successful delivery or triggering alerts for restocking. The ideal candidate should have a strong background in blockchain development with experience in creating supply chain solutions. Knowledge of retail and manufacturing industries is a plus. I need this project completed as soon as possible.

I'm looking for focused, experienced individuals to carry out data entry tasks for my job portal. Requirements: - Fluency in English and Arabic is a must, as the job portal will operate in both languages. - An understanding of job postings and their structure. - Ability to handle volumes that exceed 500 job postings. Ideal Skills: - Previous data entry experience. - Understanding of the recruitment industry. - Ability to work efficiently without compromising on accuracy. Successful candidates will primarily enter job postings. Your bid should reflect your capacity to handle the large volume of data input.

...full-stack developer to become the business CO-FOUNDER. This individual must possess proficiency in back-end development and DevOps experience, database management, and server administration and must be a self-starter capable of overseeing the all website aspects. This is a position for a leader who has dreams, passion and ambition to be on the ground-floor of a business they believe in and a with the desire to want play a major role in our success. Our site and apps are in the final stages of completion and I have a team of developers currently in motion for the website and iOS/Android apps to fix bugs and optimize our operation. This responsibility would be to manage PRs, oversee performance, take proactive steps to resolve issues either by fixing yourself or assignin...

I'm looking for a Virtual Assistant to grab leads, I’ll send material on how. It’s pretty simple. We'll specifically be targeting those who work in the nightlife industry and going down the research rabbit hole on Instagram. Ultimately I'm trying to sell high end social media services and night life people have access to a wealthy Rolodex so my goal is to gain a bunch of affiliates from this. Key Responsibilities: - Find mini partners (affiliates) in nightlife: vip hosts, promoters, club managers club partner companies, etc. - Inputing the above prospects info (names and emails) on a google excel sheet Skills and Experience: - Fast - Critical Thinker - Proficiency in using Instagram for business research - Experience in lead generation - Bonus: Familiar...

We need a local assistant in Bangkok who can speak English or Vietnamese to help us with tasks such as gathering information, translating, and interpreting. The ideal candidate is dynamic, honest, and willing to start from a single task (with a high potential for stable and long-term cooperation).

I need a proficient Android app developer who can build a fantasy app, catering exclusively to Android smartphones. Key features include: - User authentication to ensure a secure environment. - Push notifications for active user engagement. - In-app purchases to enhance user experience and monetization. The primary function of the app is to provide an enchanting fantasy platform for a captivating user entertainment experience. Ideal candidates should have significant Android development experience, focusing on user authentication, push notification implementation, and in-app purchase integration. Experience in crafting engaging fantasy apps would be a bonus. Active communication, promptness and creativity will be highly valued for this project.

...Proficient React.js Developer: Superset's frontend is built using React.js, a popular JavaScript library for building user interfaces. The candidate should have extensive experience working with React.js and be well-versed in its concepts, such as components, state management, and lifecycle methods. Familiarity with Redux: Superset utilises Redux for state management. The ideal candidate should have a solid understanding of Redux principles, including actions, reducers, and middleware. Strong CSS and Styling Skills: Redesigning the landing page and menus will require modifying the existing styles or creating new styles. The candidate should have expertise in CSS, CSS preprocessors (e.g., Sass, Less), and CSS-in-JS solutions (e.g., styled-components). Knowledge of React...

the front end according to the references below. In your proposal, describe how and what you would customize to make it more attractive. Share references of similar work that you have already done along with your proposal. When clicking on the website entry button, create a preselection redirecting users to the Telegram group. The buttons will be redesigned for a better experience. An existing prize draw module will implement a countdown clock for automatic draw execution. The system will conduct automatic draws at specific dates and times, displaying the winner on the website. The prize draw module already exists in the script.

I'm looking for a WordPress developer who can help me with a comprehensive project. I need someone who can handle theme customization, plugin development, and general website maintenance. Key Responsibilities: - Customize themes to fit my brand identity and unique requirements - Develop new plugins or customize existing ones to add desired functionality - Ensure the smooth operation and upkeep of the website The main objective of this project is to create a fully-featured website that covers all areas from blog to eCommerce. This means the developer should be well-versed in both front-end and back-end development and should have experience with: - Building and maintaining WordPress websites - Customizing themes from scratch - Developing and integ...

Project Description: We are looking for an experienced web developer or team to build a comprehensive escort directory website similar to EuroGirlsEscort. com. The website should include all essential features such as agency profiles, individual profiles, advertisement placements, country-specific listings, advanced search filters, and a secure messaging system. Key Features and Requirements: User-friendly interface with responsive design User registration and profile creation (escorts and agencies) Ability to post and manage advertisements with different subscription plans Advanced search and filtering options by location, services, rates, etc. Country-specific listings and regional filters Secure messaging system between users (escorts, agencies, and clients) Payment gate...

I'm actively searching for an entry-level position within the technology industry. This role should be full-time. Key requirements and responsibilities include: - Assisting senior developers - Basic understanding of coding languages - Familiarity with software development - Eagerness to learn and grow in the tech industry The ideal candidate for this position should demonstrate a strong passion for technology and a willingness to learn. A degree in computer science or a related field would be beneficial, but is not mandatory. Previous experience in technology would also be highly advantageous. I look forward to working with someone who can guide me into a successful career in technology.

I'm looking for an experienced PHP developer to help build a website for my NGO. The key features of this website are a Donation portal and a Volunteer registration system. Key Features: - **Donation Portal**: The portal should support one-time and recurring donations. A crowdfunding option is not part of the initial plan, but it should be implemented in a way that it can be easily added in the future. - **Volunteer Registration**: We need a user-friendly volunteer registration system. The system should collect basic personal information from volunteers, including their name and email address. Additionally, we would like to know their skills and interests as well. This data will help us in organizing our volunteering programs more efficiently. Ideal skills and experience: - P...

I'm in need of an experienced React and Node.js developer to assist in the development of a web application. You'll be responsible for front-end development, user interface design, backend development, and database management. Key responsibilities: - Front-end development: You should have a solid understanding of React.js and experience in designing user interfaces. - Backend development: Proficiency in Node.js is a must, as you'll be handling the server-side development. - Database management: Knowledge of database technologies and experience in managing databases is required. Your main goal will be to work collaboratively to develop a feature-rich web application. If you're experienced in both React and Node.js and c...

To have a better understanding of my website needs and it's functionality I have attached a detailed research and analysis on competitor website that was done in 2017 by a web developer at the time. My expectations for this new website are it's functionality at the front end and back end as my business model is identical to what this company TIMESHARES BY OWNER is. My services are also identical to what this company TIMESHARES BY OWNER provides. Hopefully this document is helpfull in full filling the needs of my new business website.

I'm in need of an accomplished Shopify Developer with a keen sense for aesthetics and design principles. I desire a more visually appealing product layout by reducing the white space around the product frame on my online store. The aim is to create a more user-friendly interface without a major shift from the current theme and color scheme. Ideal Skills and Experience: - Expertise in Shopify development and design - Strong understanding of UX design principles - Ability to keenly follow a specified aesthetic while innovating on design Tasks: - Analyze and adapt the layout to reduce white space around the product frame - Maintain the aesthetic feel and color scheme of the current theme - Ensure user-friendliness remains a top priority during the redesign - Provide final la...

Project Description: Integrate Booking API into Existing Laravel Project We are looking for an experienced Laravel developer to integrate a booking API into our existing project. The project involves integrating a third-party booking API to enable users to book tours/services directly from our platform. Project Scope: - Integrate the booking API into our existing Laravel project. - Implement functionality to allow users to select time slots (if applicable) and book tours/services. - Generate vouchers or tickets based on API responses. - Send generated vouchers or tickets to customers via email. - Log and store all API requests and responses in our existing database table schema. Requirements: - Proficiency in Laravel framework and PHP. - Experience with consuming RESTful A...

I'm seeking an expert in industrial security to help develop a comprehensive course for security guards and industrial workers. Requirements: - Knowledge of security protocols - Experience in industrial security - Familiarity with surveillance systems - Excellent communication and conflict management skills - Ability to cover topics such as security systems & operation functions, security supervisory skills, and physical fitness & self-defence