React jslavori

Looking for a skilled developer to convert my Figma design into a responsive and interactive React.js. Key Responsibilities: - Convert Figma design into a pixel-perfect - Ensure the UI is fully responsive (mobile, tablet, desktop) Ideal Candidate: - Proficient in React.js or , HTML, CSS, and responsiveness. - Familiar with Figma and UI design implementation. Note: There is no need for API or external service integration at this stage.

I'm currently seeking an experienced React Native freelancer who can assist me with troubleshooting and fixing functionality bugs in my ongoing projects. The issues primarily concern: - Authentication - API Integrations - Payment Gateway Integrations The ideal candidate should have a strong background in React Native, with specific expertise in dealing with functionality related bugs. Experience with code review and optimization will be a plus, as I would appreciate suggestions for improving the overall performance of the application. If you're proactive, detail-oriented, and can work independently, I'd love to hear from you. Project will be on Tasks basis. Note : Looking for the Fulltime freelancer who can start working now on priority. Thanks!

...a diet recommendation system using Django for backend and React for frontend. The website should offer a user-friendly interface with the following key features: - A homepage with sign up/sign in options. - An interactive user profile setup post login to gather personalized data for diet recommendations. - A subscription model for daily appointments with a dietitian, based on the user's subscription plan. - An integrated exercise suggestion system, tailored to the user's weight loss goals. The system should collect the following user details: - Height and weight - Dietary preferences and restrictions - Current health conditions - Gender and age The subscription plans will be weekly. Ideal Skills: - Proficient in Django and React - Experience in developing in...

I've been experiencing connection timeouts and proxy errors with my Node.js application. The API server seems to be rejecting requests with 502 errors. The app is running on an m5 large instance where I have node js applications, mongo db, prometheous, grafana, websites. I haven't made any recent changes to my server configuration or application. Key Issues: - Increasing number of proxy errors in Apache logs - Node.js application APIs getting rejected with 502 - Possible high request volume causing issues Ideal Skills: - Expertise in Node.js and Apache - Experience with server performance optimization - Knowledge of handling high traffic situations I need a professional to diagnose the root cause of these issues and implement an effective solution. Please provide you...

I am looking for an expert in React JS capable of customizing indicators for my project. Please note that the specifics of the indicators, their customization, and their intended use have not been defined yet. Therefore, I am open to suggestions and creative input from the freelancer. Ideal Skills and Experience: - Expert level knowledge of React JS - Previous experience with customizing indicators - Strong understanding of financial, performance, and user engagement indicators - Good design sense for styling and visuals - Experience with implementing functionality changes - Knowledge of data integration processes - Ability to create engaging dashboards and reports - Experience with live data display projects - Strong communication skills for collaborative pro...

...candidate should have extensive experience with Laravel and React, as well as (SSR) and Docker. Key Requirements: 5 pages on the Onboarding process and 6 of the dashboard, most content of the onboarding could be reused in the dashboard. Apart from MVP, landing page should be created on the Wordpress which will include 5 blocks and draft view for blog. Also, we expect that plugin for WordPress will be created, plugin should have enabled/disable options, adding user password/key and have only one functionality, that logic also could be reused from the Dashboard. Chat creation between user and client is also the thing which we need to have, so experience with web socket is nice to have. Desktop + mobile. Stack : Laravel + React + (SSR), Docker Deadlines: we are looking ...

...responsive website for users to navigate easily. Display available car models, descriptions, and status (Available or Booked). Include a login form for users. Back-End: Handle user authentication and database interaction. Update car availability status. Admin panel for car management (Optional: Admin can add/edit cars, change availability). Technologies Preferred: Front-End: HTML, CSS, JavaScript (React JS preferred but open to suggestions). Back-End: Node.js/Express or Python/Flask. Database: MySQL or MongoDB. Future Enhancements: We later extend the project to include online booking and payment processing, so the codebase should be extendable. Deliverables: Fully functioning login and registration system. Car display section with available car models. "Call...

We are looking for an exceptional React developer with a keen eye for design to convert Figma designs into pixel-perfect, responsive React components. The ideal candidate must be available to work in the Germany timezone and should be able to start tasks immediately upon assignment. This is a long-term opportunity for up to six months, provided the work meets our standards and turnaround expectations. If you have a strong background in React development, a proven ability to transform Figma designs into flawless components, and can work independently with quick execution, we would love to hear from you!

...and duration. Ensure smooth transitions and an engaging visual presentation for the slideshow. Integration with Google Photos API: Utilize the Google Photos API for managing, tagging, and retrieving photos and videos. Implement Google OAuth 2.0 authentication for secure access to my Google Photos library. Technology Stack: Preferred: Node.js, for backend, and any frontend framework (React, Vue, or Angular) for a smooth user experience. Familiarity with Google APIs, especially Google Photos API and OAuth 2.0 authentication, is essential. The app should be optimized for speed and reliability, given the large volume of photos. Hosting & Deployment: Ability to host the web application and slideshow on my predefined web hosting space. Provide easy instructions for deploying a...

I have a device where is possible save logged data into CSV or GPX using a web-browser so I need of a Data Export page JS script to make this in automatic and send the file on my server. The script must work on a win pc or win server with time setup available.

I'm looking for a skilled Next JS developer with a strong background in integrating the Google My Business API for a reputation management SaaS project. The ideal candidate will also have experience with other social media APIs, particularly Facebook and Yelp. You should have experience in using AI tools for coding. This is a continuous project. We are looking for the right candidates for long-term. Key Responsibilities: - Implement review management using Google My Business API - Integrate with various social media APIs (Facebook, GMB, Yelp) - Develop review management features such as aggregation, responding to reviews and sentiment analysis We'll provide access to a private Git repository for collaboration. Please apply if you have the required skills and experienc...

I'm seeking a skilled React Native developer to help bring my vision of a social media app to life. The primary focus of this project will be on creating and implementing user profiles. Key Features: - User Profiles: The app will need to incorporate basic user profiles, which include a name and profile picture. Ideal skills for this project include: - Proficient in React Native with a solid understanding of social media app development. - Experience in creating and managing user profiles in an app. - Ability to deliver high-quality work on time.

My React Native app is having trouble with its APIs, preventing users from logging in. This issue occurs specifically after users enter their credentials, and it appears to be linked to the OAuth authentication process. The app doesn't provide any warnings or indications of a problem, which makes the issue even more frustrating for users. Ideal skills for this project include: - Extensive experience with React Native - Proficient understanding of API integration - Familiarity with OAuth authentication - Strong problem-solving skills - Ability to improve user feedback mechanisms

I need a straightforward modification to my JavaScript code. The task is to reposition a widget from the right side of the screen to the left. Key Details: - The widget needs to be optimized for both desktop and mobile devices and float in the lower left corner. - No additional functionality or design changes are needed beyond this simple relocation. - The widget shou...mobile devices and float in the lower left corner. - No additional functionality or design changes are needed beyond this simple relocation. - The widget should be floating on the left side of the screen in the corner. Ideal Skills: - Proficiency in JavaScript - Experience with cross-device compatibility - Knowledge of widget development and positioning SCRIPT:

Job Description: I am looking for an experienced React Native developer who can connect to my PC and help resolve dependency issues with my React Native project. My current project needs to be compatible with Xcode version 13. I just need assistance in getting the app up and running smoothly. Requirements: Expertise in React Native development Familiarity with downgrading/updating dependencies to match specific Xcode versions Experience with Xcode 13 (this is non-negotiable as my app needs to run on this version) Ability to troubleshoot and fix dependency issues Task: Your primary responsibility will be resolving any React Native dependency issues and ensuring the app runs properly with Xcode 13. I need the app working on my system with this specific Xcode ver...

expert with EVM and Solana expert with working with any type of APIs expert with web3 libraries expert with smart contract develop backend and database expert (node.js prefer) frontend expert (react prefer) expert with Telegram bots and apps development

I have a React Native project that displays 23 critical vulnerabilities when running npm install. These issues are related to Babel and its dependencies, including babel-traverse, babel-core, babel-template, and others. Scope of Work: -Analyze the provided npm audit report. -Update or replace vulnerable packages without breaking existing functionality. -Ensure compatibility with the current version of React Native. -Thoroughly test the application after making changes to confirm everything works as expected. Requirements: -Proven experience with React Native and Babel. -Expertise in resolving npm dependency vulnerabilities. -Familiarity with updating and refactoring packages in React Native projects. -Ability to provide clear documentation of all changes mad...

I'm in need of a skilled front-end developer, well-versed in React or to transform our Figma designs into a dynamic and engaging service-oriented website. My Requirement: - Transform Figma designs into a fully operational React or based website with dynamic feature. - Develop an fully user-friendly interface smoothy. - Ensure responsive design for mobile and desktop compatibility. - Required motion animation in whole website. - Need frontend only for my website. Backend part we manage it. If you think you are right fit. Will share my Figma Design with you in your DM and we discuss ahead.

I'm seeking an experienced full stack developer for a personal project. The application will require: - User Authentication and Authorization: Implement secure login systems, user roles, and permissions. - Data Visualization: Create interactive and insightful data displays. Experience with libraries like D3.js or is a plus. - E-commerce Capabilities: Build and manage online shopping features, including product listings, shopping carts, and payment gateways. The user interface should follow a minimalist and clean design style. You should have strong skills in UI/UX design, with knowledge of tools such as Figma or Adobe XD. The ideal candidate will have: - Extensive experience with and full stack development. - Proven track record in building secure, interactive, and

I'm looking for a talented web developer experienced in React, HTML, CSS, JavaScript, and MongoDB, with a solid understanding of Machine Learning (ML). The specific goal of the project is not yet defined, so flexibility and creativity are key. Ideal Skills: - Proficiency in front-end technologies: React, HTML, CSS, JavaScript - Strong experience with MongoDB for backend development - Knowledge and experience with Machine Learning (ML) - Flexible and creative mindset for undefined project goals - Excellent problem-solving skills Please note that the project is in its early stages and has not yet been developed. A keen understanding of web development and the ability to translate ideas into a functional site is essential.

...ensuring that individual UI elements (e.g., tables, charts, forms, navigation) are modular and reusable. Implement mock data to simulate API interactions, allowing for a functional and interactive front-end during development. Manage state using Redux or Context API, ensuring efficient data flow across components. Use React Router for seamless navigation between dashboard sections (e.g., user management, bookings, balance management, reports). Utilize a UI framework like Material-UI, React-Bootstrap, or Ant Design for a consistent design language and faster prototyping. Ensure the UI is scalable and maintainable for future updates and additional features. Optimize the front end for performance and responsiveness. The developer should be ready to seamlessly integrate with t...

I'm in need of a skilled web developer with experience in API integrations, specifically with the AutoUncle API. The task involves creating a single-page web application that allows users to input specific vehicle settings and receive real-time val...vehicle settings and receive real-time valuation data. Key Requirements: - Users should be able to input settings such as Make and model, Year of manufacture, and Mileage. - The application should retrieve real-time data from the AutoUncle API based on the user's input. - Experience in developing single-page applications is crucial. Ideal Skills: - Proficiency in JavaScript frameworks such as React, Angular, or Vue.js. - Previous experience with the AutoUncle API is a plus. - Strong understanding of real-time data retrieval ...

I'm looking for a web developer to create a fully automated website for me. This site will need to handle mixed data input (both textual and numerical) and generate visual reports (like charts and graphs) based on the backend data. Key Requirements: - The site should allow for manual data entry. - The sit...based on the backend data. Key Requirements: - The site should allow for manual data entry. - The site should be capable of generating visual reports based on the input data. - The backend should be able to handle mixed data (both textual and numerical). Ideal Skills: - Proficiency in web development languages (HTML, CSS, JavaScript, etc.) - Experience with data visualization libraries (like D3.js, , etc.) - Understanding of backend development to handle mixed data proc...

I'm seeking a skilled Freelancer specifically - full stack developer who can bring my Figma design into a fully Dynamic Website. My Requirement: - Transform Figma designs into a fully operational React or based website with dynamic feature. - Develop an fully user-friendly interface smoothy. - Ensure responsive design for mobile and desktop compatibility with required animation. - Need both Backend and frontend for my website. Important. - Need to setup and maintain our server. If you think you are right fit. Will share my Figma Design with you in your DM and we discuss ahead.

...frontend and backend components using Python, Django, and React. AR/VR and CAD Integration: Work with augmented reality (AR) and CAD tools to develop interactive and immersive digital experiences. API Integration: Implement and optimize RESTful APIs for seamless data exchange between various platform components. Quality Assurance: Conduct thorough testing and debugging to ensure the stability and performance of the platform. Innovation: Contribute innovative ideas and solutions to improve the platform and keep it at the forefront of technology. Required Skills & Qualifications: Proven Experience: 5+ years of experience in AI/ML development and full-stack engineering. Technical Expertise: Proficiency in Python, Django, and React, with a strong understan...

I'm seeking an experienced PHP developer to integrate my custom HTML/CSS/JS payment form with the API. The integration should support recurring charges and utilize webhooks to modify a MySQL database accordingly: upgrading on payment receipt and changing status upon cancellation. Key requirements: - Proficiency in PHP and MySQL - Experience with API - Ability to implement and manage webhooks - Skills in handling Custom HTML/CSS/JS - Understanding of recurring payment systems

...given to companies that have worked on P2P Lending projects, with the ability to handle lending processes between lenders and borrowers, risk management, and compliance with relevant financial regulations. 2. Platform and development languages: - The application will be developed for both Android and iOS platforms, using either native development languages or cross-platform technologies like React Native or Flutter to optimize time and cost. - The system must be able to integrate with banking APIs, payment gateways, and e-wallets to support online payments and financial transactions. 3. Application functionality requirements: - High security: The application must ensure data security, adhering to standards such as PCI DSS and encrypting user information. - Loan and ...

I want to buy a messenger /chat (like in Fiverr) in React & flutter (mobile and website). The UI should be customized as per the website or app design. If you have one or you can build one we can work together.

Description: We are seeking a skilled Frontend Developer to create an engaging user interface for a gaming tournament platform. The ideal candidate will have strong experience with React, Redux, and API integration. Your role will involve building responsive UI components and integrating them with backend services. Responsibilities: Develop responsive web pages and interactive UI components using React.js. Manage global state with Redux or Context API. Integrate frontend components with backend RESTful APIs. Implement authentication and authorization flows (JWT). Collaborate with the UI/UX designer to transform designs and wireframes into high-quality code. Optimize application for maximum speed and scalability. Perform code reviews and ensure code quality and maintainability. Req...

...source document management system developed in React for the front-end and Node.js for the backend. The system should come with full source code for customization. Key Features: - Document uploading and storage: The system should allow users to upload documents and store them securely. - User access control: There should be mechanisms in place to control user access to documents based on permissions. - Search and retrieval: Users should be able to easily search for and retrieve documents. - Role based access control: Different user roles should have different access permissions. - Backup and restoration: The system should include features for backing up documents and restoring them when needed. Ideal Skills and Experience: - Proficiency in React and Node.js is a must. - ...

I'm seeking a seasoned React.js and professional to enhance my charting functionality. You should be adept at creating custom chart types, implementing advanced data filtering, and adding interactive features. This project requires a keen understanding of both libraries and the ability to apply complex customizations. Ideal Skills: - Extensive experience with React.js and - Proficiency in creating custom chart types - Expertise in advanced data filtering - Ability to implement interactive features Please note that specific types of charts and data sources will be communicated during the project.

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...complete certain modules or exercises. 5. Technical Requirements 5.1. Back-End Languages: Node.js, Python, Ruby for scalability. Frameworks: Django, , or Rails for database and server operations. Database: MySQL or PostgreSQL for managing students, courses, and data. Cloud Server: AWS or Google Cloud for hosting, data storage, and scaling. 5.2. Front-End Languages: HTML5, CSS3, JavaScript (React or Vue.js for dynamic and interactive interfaces). Responsive Design: Mobile-first development for optimal experience across devices. 5.3. Security and User Management OAuth2.0 Authentication for user accounts. SSL Encryption for all communications. Automatic Data Backups to prevent data loss in case of system failure. 6. Design and Screen Production Note: The design and production of ...

...our POS system. The technology stack we're utilizing includes Laravel, VueJS, and React Native with a specific focus on React Native for Windows. Proficiency in French and/or Arabic is a prerequisite. Key Responsibilities: - Oversee the completion of both frontend and backend development. - Ensure the critical components of inventory management and the mobile/desktop application are finalized pre-launch. - Lead the development of the desktop application, with potential for some mobile app oversight. - Communicate effectively with the team and stakeholders, using French and/or Arabic. Ideal Skills and Experience: - Extensive experience with Laravel and VueJS. - Strong background in React Native, particularly React Native for Windows. - Previous experien...

I'm seeking a JavaScript WebSocket expert for a one-hour consultation. My main objective is to troubleshoot issues related to frequent server crashes and connection drops. We have a VM running a NodeJS program that uses Websockets to communicate with a Mobile App running React Native. For some reason, with some users, the NodeJS program crashes and then restarts. However, this is breaking some websocket connections from time to time causing performance issues. The websockets are used as part of push notifications to the mobile App. If the server sees a websocket id for a user it will use that, otherwise it will send a push notification. We’d like to discuss this and understand what we can do to make the system more robust and generally understand websockets better. ...

I'm looking for a talented developer or ...Collaborative Sharing: Users need the ability to share their calendars with others. -Dashboard: This will show how many users logged in currently to the admin, and to the employees dashboard will display the tasks lined up for the day Tech Stack: - Backend: Spring Boot - Frontend: Angular User Authentication: - The system should support email and password based authentication. -Captcha generation using js Ideal Skills: - Proficiency in Spring Boot and Angular - Experience with developing calendar or similar applications - Strong understanding of user authentication systems - Ability to implement event management, notifications and collaborative features Please ensure your bid reflects your experience and ability to deliver a high-q...

Required Skills and Experience: Proficient in design, coding, and unit testing with C#, ASP.Net Core, and Python. Hands-on experience with Web API development. Expertise in JavaScript and modern JS frameworks (React, Angular, Vue) combined with SQL/NoSQL databases. Knowledge of CI/CD tools and Agile methodologies. Proven track record in developing client-server, distributed systems, or cloud-based applications at a commercial level. Strong analytical and problem-solving abilities.

I'm looking for a developer to convert my Figma designs, which contain interactive UI components, into React HTML. Key Requirements: - Implementation of various interactive elements including forms and inputs, sliders and carousels, and navigation menus. - Advanced state management using Redux for the interactive components. Ideal Skills: - Proficiency in React and Redux. - Experience in converting Figma designs to HTML. - Ability to implement interactive UI components accurately. Kindly mention sites you had created using react Low budget

...panel. - Data encryption to protect sensitive information. - Regular security audits. #### User Engagement: - Incentives for continuous watching, such as bonuses for watching multiple videos. - Community features to encourage user engagement and loyalty. ### Technical Requirements: - **Backend Development**: Use frameworks like Django, Ruby on Rails, or Node.js. - **Frontend Development**: Use React Native for a responsive and user-friendly interface. - **Database Management**: Use databases like PostgreSQL or MongoDB. - **API Integration**: Integrate with YouTube API and payment gateways. - **Security**: Implement robust security measures including data encryption and regular audits. ### Deliverables: - Fully functional Android and iOS applications. - Admin panel with all spe...

I'm looking for a skilled React Native developer to assist me APIs for Wellness Minimum Viable Product application. The project fixing some errors while API integration (previous developer did) and managing data. For some Activities, data display screens have certain issues which need to be fixed. The App user interface is already programmed and I can walk through the screens. Ideal skills and experience: - Proficient in React Native and Typescript with a proven track record of successful projects - Excellent communication and collaboration skills

...indicate the platform you prefer for payment. Evaluation Criteria and Requirements: General - The UX/UI design should resemble examples such as Trade Republic or Mercury, focusing on a clean and minimal aesthetic. - Designers are encouraged to use ready-made UI/UX kits available from or other design hubs to save time and resources. - Since the final development will be implemented using React, you may use existing Tailwind CSS components, shadcn, unocss, windicss or other open-source frameworks. - Both the wireframe prototype and the final UX/UI design must be provided in Figma. Design Deliverables - The final UX/UI design must support responsive layouts, including large websites, standard websites, tablets, and smartphones. - Provide two website design versions: A fronten...

...management, order processing, online technical support, and user feedback sections. Conduct quality assurance (QA) testing to ensure the portal is secure, scalable, and compatible with multiple devices and browsers. Requirements: Proven experience in web development, particularly in creating customized portals or SaaS applications. Advanced knowledge of web technologies such as HTML, CSS, JavaScript, React or Angular, and backend frameworks like Node.js, Django, or Laravel. Experience in API integration, especially in e-commerce or inventory management environments. Ability to work with relational databases (MySQL, PostgreSQL) and knowledge of NoSQL (MongoDB). Strong attention to detail, problem-solving skills, and the ability to meet deadlines. Ability to work independently and...

I'm looking for an expert in React and Web3 with extensive experience in blockchain development to help build a Decentralized Application (dApp). Please check repo and get project working and let me know once server works fine (ASAP) Responsibilities: - Review and understand the existing Scrum Board status, BugHerd tasks, and bugs. - Debug and fix existing issues as identified in the BugHerd. - Implement new features as per the project backlog. - Ensure all features are functional, fully responsive, and cross-browser compatible. - Work with the existing database fields and develop new entry fields. - Implement UI/UX changes as per provided design assets, ensuring high fidelity to the design. - Finalize third-party authentications, e.g., Facebook, Twitter, and MetaMask. - Impr...

I'm looking for a skilled developer to create a Node JS library for seamless API integration. The library should handle various essential functionalities such as: - Authentication - Data fetching - Error handling The chosen freelancer should have extensive experience with Node JS and a strong understanding of API integration. Please provide examples of similar projects you've completed in the past.

I'm looking for a Node JS library that automates API integration for both fetching and sending data with REST APIs. The library should streamline this process, making it efficient and seamless. Ideal Skills: - Proficient in Node JS - Extensive experience with REST APIs - Previous work with library automation - Strong understanding of API integration Please share relevant projects you have worked on.

Hello, talented developers! I am in the early stages of creating a decentralized exchange (DEX) platform designed for seamless cryptocurrency trading, and I am looking for an experienced developer to join my team. This project demands expertise in both backend development and blockchain technology, and I'm excited to find someone with the right skills! **Required Tech Stack:** - Frontend: React - Backend: Node.js, JavaScript/TypeScript - Blockchain: Web3, Solidity/Rust/Golang - Preferred Platforms: Ethereum, Polygon, and BNB **Project Overview:** You will be responsible for: - Developing the backend of the DEX. - Creating smart contracts necessary for the platform. - Integrating smart contracts into the backend structure. **Qualifications:** - Strong experi...

...designgurus.io. The site should encompass a responsive front-end, intuitive course pages, a blog, mock interviews, and secure payment options. - Tech Stack: The project will utilize React for the front-end, while the back-end can be developed using either Node.js/Express or Django. The database can be MySQL or PostgreSQL, with either being acceptable. - Key Focus: The most critical component of the site is the creation of user-friendly course pages. Therefore, experience in designing and implementing interactive, easy-to-navigate course interfaces will be highly advantageous. Ideal Skills: - Proficiency in React, Node.js/Express, Django, and either MySQL or PostgreSQL - Prior experience in building educational platforms or similar websites - Strong UI/UX design skills, ...

I'm seeking an expert with extensive experience in optimizing React-based frontend. My website, which is built on NodeJS and MongoDB, is experiencing some performance issues that need urgent attention. Your tasks would include: - Improving load times: The website's page load speed is currently below par. - Enhancing user experience: I want a seamless, smooth interaction for my users. - Boosting performance of complex components: Some of the more intricate parts of the site are not performing as they should. The ideal candidate will have a strong background in web development, particularly with React, NodeJS, and MongoDB. You should be able to identify bottlenecks, rendering issues, and user interaction lag, and implement effective solutions. Your expertise will he...

I'm looking for a skilled web developer to create an interactive web application that provides detailed information about food items in a restaurant. The a...select language of their choice. inside the page there will be navigation control , images, text and audio player (all in selected language) Back end - Admin Panel that enables the restaurant to add food items to the web application. - Option to Edit/Update existing food items - User control for admin panel. (add/change/update user credentials) Ideal Skills: - Proficiency in web development.(React,NOde js) - Experience with AI tools and API for translations and audio generation in multiple languages Detailed process and workflow is attached with the post Please include examples of similar projects you've ...

...responsible for developing and maintaining web applications. This role requires a combination of programming skills, a keen eye for aesthetics, and a deep understanding of industry trends and content management systems. Key Responsibilities: - Front-End Development: Develop responsive, high-performance, and visually appealing web interfaces using HTML, CSS, JavaScript, TypeScript and frameworks like React, Angular, or Vue.js. - Back-End Development: Build robust, scalable, and secure server-side applications using languages such as Node.js, Python, Java, C# or PHP. Manage databases using SQL and NoSQL technologies like MySQL, PostgreSQL or MongoDB. - API Development & Integration: Design and implement RESTful and GraphQL APIs. Integrate third-party APIs and services. - Versi...