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    2,000 frontend and backend developer jobs found, pricing in USD

    ...Salesforce Enterprise edition, I'm in need of a seasoned Salesforce developer who can step in and assist with various aspects of my current project. This project involves a high level of complexity, including advanced customisations and integrations with other systems. Key Tasks: - Customisation of objects and fields: This will require a deep understanding of how our organisation operates and what data is critical to our processes. You will need to not only create custom objects and fields, but also ensure they are integrated seamlessly into our existing Salesforce platform. - Workflow automation: Our goal is to streamline as many of our business processes as possible. Your role will be to identify areas that can be automated and i...

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    I'm in need of a skilled developer who can help bring my e-commerce vision to life. Here's what I have in mind: - A fully functional e-commerce website: The primary goal of this project is to have a website that can host my products and facilitate online transactions securely. - User-friendly interface: It's important that the website is intuitive for visitors and customers. I want the shopping experience to be smooth and seamless. - Robust backend: While the front-end should be user-friendly, I also need a secure and well-structured backend to manage my products, orders, and customers effectively. Skills and experience required for this project include: - Proficiency in e-commerce website development - Expe...

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    I'm in need of an experienced web app developer to create a Food Finder application. This app aims to help users discover nearby food spots and make informed decisions based on peer reviews. Key Features: - Location-Based Search: The app should enable users to search for food options based on their current location or a specified area. The system should provide accurate results and filter distant options. - User Reviews and Ratings: Users should be able to rate and review the restaurants they've visited. The overall rating and individual reviews should be openly accessible to other users. Compatibility: The app should be optimized for web browsers to ensure universal access. Ideal Skills: - Proficient in web app development - Experien...

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    I'm looking for a Python developer to help me set up a VONAGE API to send SMS messages. Key Project Details: - The main functionality I need is to set up the ability to send SMS messages. - The application should be efficient, reliable, and easy to use. - I'm not yet sure if I need two-way communication or if the application will need to support sending messages to multiple countries. Skills and Experience: - Strong experience working with VONAGE API is a must. - Proficiency in Python, with a focus on SMS messaging. - Ability to create a reliable and user-friendly application. - Familiarity with creating two-way communication systems and international messaging support would be an advantage. If you're a Python developer with VON...

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    I have a mathematical problem related to a video game that I cannot solve. I'm offering 100 dollars to anyone who comes up with a solution, and makes a simple calculator with the solution. The problem is described in this spreadsheet. Please read it before contacting me. https://docs.google.com/spreadsheets/d/1b7J3gmEsKXdg5S7edLrwDv4Xyf8yO0hpFWip2y11bOg/edit#gid=0

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    ...of a PHP Developer for a new project. The parameters and required skills are fairly open, as I've not declared any specific frameworks or preferences. Ideal candidates include those who possess: - Broad knowledge of PHP across various frameworks. Although Laravel, CodeIgniter, and WordPress were the options given, these indications were not selected, thus creating an open space for any skilled PHP professional to apply. - Experience in both website and web application development. There's an opportunity to work on several PHP development projects, potentially ranging from website building, application creation, to API integrations. - An impressive design eye. I've left the space open for any design style you're confident with - be it mini...

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    ...experienced Shopify developer to help me make a quite smilar a product page. like this Specifically, I'd like this new page to be built using 'Pagefly' or similar tools. this is the product page that we desire to similar While the page should be an imitation of the reference site, I'd like some minor modifications to the design and layout. Key requirements: - Replicating Product Descriptions and Details: This is the core aspect of the project. You'll need to ensure the descriptions and details are accurately transferred to the new page. - 'Pagefly' Experience: Proficiency in using 'Pagefly' or similar tools is a must. This will ensure that the modifications to the design and layout can be

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    Full Stack Developer (MERN) 5 days left
    VERIFIED

    Looking for a Full Stack Developer >6 years of experience in agile development of scalable SaaS apps in the cybersecurity area: Improve our app (URL Risk assessment) Improve our app (Domain Typosquatting) Improve our project (Darknet Monitoring) Create an app "hackerview" for passive attack surfave enumeration Create an app for detecting spoofed social media profiles Create an app to scrape ransomware threat actor website and maitain stats about those sites Improve an existing app to monitor paste sites Mininmal Tech Experience: MERN, REST API (JWT), Django, Python, Github, CI/CD, Celery, Redis, Linux, Postgress, Kubernetes, Docker, Nginx, JS, HTML5, Protocols (DNS, SMTP, SSL, HTTP..).Detailed app specifications will be shared at a later stage. |------

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    ...search of a full-stack developer to join me in building a scalable, multi-tenant web application. The project requires expertise in Golang and React for back-end and front-end development, respectively. Ideal Candidate: - Proficient in Golang, JavaScript (React) - Skilled in Cassandra, OKTA - Experience with Docker, Kubernetes - Familiarity with Google Cloud Platform -Apply with Github and sample projects The project entails creating a robust, multi-tenant web application that can handle multiple users with varying requirements. It is imperative that the selected developer is competent in ensuring the application's scalability and reliability. If you have previous experience building similar applications, please don't hesitate to app...

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    I am in need of an experienced Chrome extension developer to create some chrome extensions Key Tasks: - Develop a user-friendly Chrome extension - Implement data extraction techniques to collect and organize information from various web sources. The ability to filter and manage this data is crucial. - Set up the extension for browser automation tasks. It should be able to perform repetitive actions on a webpage without manual intervention. Communication: I prefer to manage communication with the selected freelancer through the messaging feature available on Freelancer.com. Ideal Candidate: The ideal candidate for this project should have a proven track record in developing Chrome extensions, particularly those involving web scraping and data extraction. E...

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    ...Full Stack Developer to connect a frontend to a ChatGPT-enabled backend for an education-focused application. Your primary responsibilities will include: - Frontend Development: - I'd like the frontend to be developed using JavaScript, Python, and HTML/CSS. The design should be a blend of modern and minimalistic along with colorful and vibrant elements. - The UX/UI should be intuitive, professional, and engaging for users. - Backend Development: - The backend should feature ChatGPT for comprehensive handling of educational documentation and reports. - Key backend functionalities should include: - User authentication and authorization: Implement a robust system t...

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    ...seeking a highly skilled Shopify developer to join our team for a long-term project. You'll be responsible for creating innovative functionalities that extend beyond Shopify's default settings, pushing the boundaries of the platform. Here's what we need: Shopify Expertise: In-depth understanding of Shopify's file structure, directories, and templating system (Liquid). Experience manipulating orders, grabbing data from the database, and crafting custom views using Liquid shortcodes. Proven ability to develop custom Shopify plugins to achieve complex functionalities. Technical Skills: Proficiency in Shopify development languages (Liquid, JavaScript, HTML, CSS). Experience with database manipulation (likely MySQL). Communication & Collaborat...

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    I'm searching for a skilled JavaScript developer who also has solid experience using Chrome Developer Tools for debugging. The main responsibility of this project will be to analyse and understand functionality of a web application and website. To succeed in this project, you need to: - Be an expert in JavaScript. - Have advanced proficiency in Chrome Developer Tools. - Have a solid understanding and previous experience with web platforms. - API integration experience.

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    I'm in need of a WordPress developer who can create responsive layouts. You should be someone who can bring my vision to life and ensure that the user's experience is seamless and consistent across all devices. Key Duties: - Create responsive layouts in WordPress - Ensure consistent user experience across platforms Content Management: After the project is completed, I would like to manage content through periodic updates by the developer. Integrations: I'd also appreciate assistance with integrating social media platforms. Ideal Candidate: - Proven experience in WordPress development - Strong understanding of responsive design - Capable of managing and updating content - Familiarity with social media integrations in WordPress If you...

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    I'm in need of a skilled developer who can help me with both front-end and back-end tasks for my project. Specific Skills Needed: - Proficient in ReactJS for front-end development - Experienced in Node.js for back-end development Project Details: - The project involves full-stack development, from building front-end components to implementing server-side logic. - The main aim of the project is not specified, but what I will provide you with are tasks in both front-end and back-end areas. Ideal Candidate: - Proficient in both ReactJS and Node.js, capable of delivering high-quality front-end and back-end solutions. - Experience in full-stack development, with a strong understanding of how to integrate front-end and back-end components seamles...

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    I have an immediate need for a skilled React Native developer to handle extensive API integration on both iOS and Android platforms. Your tasks will mainly revolve around integrating the app with required APIs. Key Responsibilities: - Integrate the app with the necessary APIs to ensure its smooth functioning. - Ensure cross-platform compatibility, taking into account the specific requirements of iOS and Android. Ideal Skills: - Proficiency in React Native and its ecosystem. - Strong understanding and experience in API integration. - Experience with developing for both iOS and Android. - Ability to work under tight deadlines. Your speed and efficiency in completing this task are crucial. Immediate availability and previous experien...

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    Core PHP Developer 5 days left
    VERIFIED

    ...Our goal is to create a flexible and scalable backend infrastructure that can handle high volumes of bookings while ensuring a smooth user experience. I need a skilled Core PHP Developer to build a custom web application with database management capabilities, using MySQL as the preferred database management system. The application should be well-structured and efficient with an emphasis on data handling. Key Requirements: - Extensive experience working with Core PHP. - Proven track record of developing dynamic, secure, and efficient web applications. - Strong understanding and experience with MySQL database management. - Ability to ensure the application is well-structured and follows best practices for data handling. - Strong problem...

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    ...skilled software developer to build a robust Voice Call Live Speech to Speech Translation Platform. This platform will enable real-time voice translation during calls, facilitating seamless communication between speakers of different languages. The ideal candidate will have experience in speech processing, real-time communication systems, and cloud services. Responsibilities: - Design and develop a high-performance backend system for real-time audio processing and translation. - Integrate speech recognition and translation APIs from leading providers. - Implement a scalable real-time communication architecture to support voice calls. - Ensure data privacy and security compliance in voice transmission and storage. - Work clo...

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    ...experienced Laravel developer to enhance my existing website with user authentication, database integration, and payment processing and many other things. Ideal Skills & Experience: - Strong proficiency in Laravel, with a good understanding of its ecosystem and the ability to work on existing codebase. - You must also have experience with front-end development as Vue.js. Please only apply if you have a portfolio that showcases your Laravel projects and are comfortable working on an existing codebase. I have more than 15 years experience with developing websites, so you will work together with me. As I don't have much time, then you will develop the code and I will instruct you. Maximum hourly rate is: 10 dollar We are talking abo...

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    We need a skilled PHP developer who can build a SaaS platform based on the functionality and features of and The project has a set deadline. Critical requirements include: - Expertise in PHP development - Experience in building a SaaS platforms - Google My Business API on the server to fetch review data. - API on the server to fetch review data from other platform like Trustpilot, Facebook, Yelp and Amazon review - Ability to replicate similar functionality and features from a reference website Main functionalities required: - Platform formation from scratch - Comprehensive platform construction - User Registration and Login - Product Rating and Review - API Integration We aim to replicate similar features and functionality f...

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    Ruby Expert for Website 5 days left
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    I'm in a urgent need of Ruby Expert for the study project. I have a devloped code and it is running on heriku. The technology used are as below:- Ruby (Backend language) Ruby on Rails (Framework) Bootstrap (frontend library) Html + scss ( Front end) Jquery + JavaScript Database : Postgresql Due is tonight so if you are available now it will be helpful. Thank you. This is a time-sensitive project, so please only apply if you can dedicate the necessary time and expertise.

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    ...freelancer to quickly customize an admin UI template for our project. The template has already been installed on the server and customization has already begun, we just need help finalizing the designs for the remaining pages. The template needs to be modified to match our design requirements which will be provided to you upon request. The ideal candidate should have experience in UI customization and be proficient in HTML, CSS, and JavaScript. PHP experience is a PLUS since the entire site is programmed in PHP using a custom framework. Attention to detail and the ability to work efficiently are essential. The main tasks include using existing template elements to create and design the needed pages for our back office or using your design sk...

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    Seeking a seasoned and versatile full stack developer who can double up as a graphic designer for a series of ongoing web design projects. The ideal candidate should be able to adopt a minimalistic, modern design style. Key Responsibilities: - Develop and maintain a range of informational/content-based websites - Implement responsive web designs that ensure optimal user experience across all devices Ideal Skills & Experience: - Proven experience as a full stack developer - Strong background in web development, including HTML/CSS, JavaScript and Python - Proficiency in graphic design tools such as Adobe Creative Suite - A keen eye for design and aesthetics, particularly in minimalistic, modern styles - Prior experience with informational/cont...

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    Drupal Developer 5 days left
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    Need to work with a Drupal expert in connection with feeds imports for a site under development.

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    ...seeking an experienced and talented UI Frontend Designer/Developer for a one-time project to design and develop a user-friendly and visually appealing TV Remote app for both iOS and Android platforms. The ideal candidate should have a strong background in Swift UI for iOS and Android Studio for Android development. ### Responsibilities: - Design and develop the frontend of a mobile app for iOS using Swift UI. - Design and develop the frontend of a mobile app for Android using Android Studio. - Collaborate with backend developers to ensure seamless integration. - Create intuitive, user-friendly interfaces that provide a smooth user experience. - Ensure the app is responsive and performs well acros...

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    I'm seeking an experienced DevOps engineer who is proficient in deploying React Frontend and .NET Core 8 applications to Alma Linux with NGinx server. The candidate should have solid experience with: - Deploying React FrontEnd and .NET Core 8 Web API applications on Alma Linux in GoDaddy VPS. - Knowledge of routing of both applications with one domain and one SSL. - Knowledge of handling SubDomain. - Knowledge of Alma Linux Nginx deployment. - Understanding of .NET Core Application Settings and React.JS application settings - Understanding of Node.JS

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    I'm seeking an independent ASP.NET developer based in India with at least 5 years of experience, strong C# programming skills, and familiarity with SQL Server and Asp.net core. Your English skills will be crucial as direct communication with me is required. Key Responsibilities: - Develop a robust business management system leveraging ASP.NET - Implement user authentication and authorization features - Integrate appropriate APIs to enhance system functionality Ideal Candidate: - Minimum 5 years experience in ASP.NET development - Proficient in C# programming and SQL Server - Familiarity with Asp.net core - Experience in developing business management systems preferred - Strong communication skills for client call Please note that this project is o...

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    I'm seeking a skilled Node.js backend developer with expertise in real-time applications and , for a project with chat and graph features. Requirements: - Develop a robust backend in Node.js - Implement real-time chat functionality - Handle graph visualization using Ideal candidate should have: - Proven experience in Node.js backend development - Strong understanding of real-time applications - Previous work with - Proficiency in data visualization, specifically graph data structures Please note that this project requires an expert who can deliver efficient, scalable, and secure code.

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    I'm in need of a professional and interactive e-commerce website to sell my range of physical and digital products. We'll start with less than 50 products but the site must be scalable for future growth. Key Features: - Product listing and management - Shopping cart and secure checkout - User register and login - Payment gateway integration - SEO-friendly URLs Ideal Candidate: - Proven experience in e-commerce website development - Familiarity with popular e-commerce platforms - Proficiency in frontend and backend technologies Your proposal should include relevant work samples. Looking forward to a successful collaboration.

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    ...fans to upload and share videos they have recorded at gigs. The app will have 2 main users groups: - Artists: They will use the app to discover content recorded at their shows - Fans: They will use the app to upload content recorded at gigs and build a cool profile showing all the gigs they've attended I am already building the back and frontend of the application, and so have a good idea of what users will do on the app. I also already have wireframes which outline the main pages and flows i had in mind. What i need from a freelancer is the following: 1. Understand my application and the user journeys of both music artists and fans 2. Review my wireframes and make any ammendants they think are appropriate in order ...

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    I'm in need of a WordPress expert to help me create a website with 5-10 pages. Unfortunately, I was unable to provide specifics on the purpose of the webs...WordPress expert to help me create a website with 5-10 pages. Unfortunately, I was unable to provide specifics on the purpose of the website or the functionalities I'd like it to have. I'm looking for someone who is experienced with WordPress and can help guide me in determining the best features for the site. Key requirements include: - Strong understanding of WordPress and its various features - Excellent design skills - Ability to work collaboratively and provide input on the best practices for website functionality If you're a WordPress master and can help me bring my website visio...

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    I need a skilled Flutter developer to help me enhance my existing app with new features at the earliest. Key Responsibilities: - Collaborating with me to understand and implement the new features that will add value to the app. - Ensuring the new features are seamlessly integrated and the app's overall performance is not compromised. - Conducting testing and debugging to ensure the app is completely free of glitches before it's released. Ideal Candidate: - Must have substantial experience working with Flutter and be able to demonstrate previous work. - Should be able to work on a strict timeline and deliver the project ASAP. - Ability to work collaboratively, take direction, and communicate effectively.

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    I'm looking for an experienced React developer with a strong focus in frontend development. Your main responsibility will be to structure and code the frontend following best practices. We use React.js and Tailwind CSS. The figma design is ready. We need to convert figma to react.js.

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    Launchpad Developer Needed 5 days left
    VERIFIED

    ...company is seeking an experienced developer to build a robust and user-friendly launchpad platform. The ideal candidate will have a strong background in blockchain technology, smart contract development, and platform integration. Responsibilities: - Develop and implement a secure, scalable launchpad platform. - Design and deploy smart contracts for token launches. - Ensure platform security and compliance with industry standards. - Collaborate with the team to integrate the platform with other services. - Provide ongoing maintenance and updates. Qualifications: - Proven experience in blockchain development. - Proficiency in smart contract programming (e.g., Solidity). - Strong understanding of platform security and scalability. -...

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    ...skilled Python developer with knowledge of RAG and Chainlit to create an AI-powered chatbot. - Specific Tasks: - Develop an interactive chatbot to be used by customers - Implement RAG and Chainlit concepts to enhance the chatbot's capabilities - Ensure the chatbot can handle a variety of interactions and provide accurate information - Integrate the chatbot seamlessly into our systems and platforms - Desired Qualifications: - Proficiency in Python, particularly in relation to chatbot development - Expertise in RAG and Chainlit - Experience in creating chatbots with strong interactive capabilities The primary functionality for this chatbot will be answering frequently asked questions. The successful developer will...

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    I'm in need of an experienced Laravel developer, well-versed in both back and front end development, to join my team on a long-term basis. The selected professional will be the go-to person for multiple upcoming projects in the B2B space. Key Responsibilities: - Develop and maintain E-commerce platforms & Laravel Developed Softwares - Build and manage Custom CMS systems - Implement and integrate APIs effectively, know Frontend like html, css, Vue.js, react.js etc - Ensure the systems are robust and scalable Ideal Candidate: I'm looking for a Senior-level Laravel developer with over 4 years of demonstrable experience in the field. - Strong knowledge of both front and back end development with Laravel - Adept a...

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    Small update on app code -- 4 5 days left
    VERIFIED

    Small update to the android app. Change the payment gateway "cryptomus" to stripe. After that. Compile the code to obtain the apk version and an .aab version that will be used in the Google Play Store. In turn, upload the updated code to the app server. Send me the updated source code as well. The app is made on react Native, and the backend is Python. All the API's are made on Python. This may require modification in FrontEnd. in that case. You must be able to complete the project. Maximum budget $300

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    I'm in need of an experienced Python programmer to assist with ongoing tweaks and feature additions to my Interactive Brokers API-based applications. Phone support is required to flesh out ideas. Key Responsibilities: - Implement new features to enhance the existing codebase. - Ensure smooth integration of the new features. Ideal Skills and Experience: - Proficiency in Python programming. - Some experience working with the Interactive Brokers API a plus. - Ability to make ongoing tweaks and add new features. - Strong understanding of trading systems and portfolio management. Please note that this project involves working with a tight budget, so cost-effective solutions are highly preferred.

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    Looking for php laravel developer for small modification on home page of my movie website. 1. Latest movie section is not showing on Home page, show that section again. 2. Fix a small bugs on movies or series option clicking first time showing sometimes Loading only. 3. Lates data of series are not showing. Here is the website:

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    A.I SaaS Node .JS 5 days left
    VERIFIED

    I will provide you with example designs, and you can choose the admin panel design yourself. You will create a UI inspired by these designs using React, , or Vue.js. For the backend, you can use Node.js or Django—it's up to you. Finally, you will deploy from my Digital Ocean server, and we will test it. All these projects are open-source, requiring only design changes, integrations, and minor developments. If you create chatbots, please respond and read carefully. It must be deployed within 1 months and the price is fixed. Price doesn't change, and neither does deadline to Before making an offer, I want you to install and try the chatbot and perplexica! :)

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    Java Backend Developer Needed 5 days left
    VERIFIED

    I have a .bin file, i can interpreat the file using a desktop software to get software number and software upgrade number from the file. file exist these info: SW: 2769022101 SW upg.: 2769033803 can you interpreat the bin file and retrive those data from the file. is it possible by php ? if not then if you use any other language then will you able to give api in json format so that i will send you file from php application and you will return json response. My budget: 500$ time: 3 days let me know if you can do thanks

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    I'm looking for a talented freelancer to help me create a professional and engaging portfolio website that is fully optimized for both desktop and mobile devices. The website will consist of three main sections: - About Me: This section will be a brief overview of my background, skills, and experience. It should be designed to give potential clients or employers a glimpse into who I am. - My Work: This section will showcase my projects, designs, and any other relevant works I've done in the past. It's crucial that this section is visually appealing and easy to navigate. - Contact Information: This section is where visitors can find ways to reach out to me. It should include a contact form, links to my social media, and any other re...

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    -DATING and SOCIAL NETWORK WEBSITES , I'm looking for a highly skilled and React.js developer who can expertly handle complex application development. Your responsibilities will include: - Frontend development: creating robust and efficient codes that will drive our web application. - User authentication: implementing secure protocols for signing in and maintaining user sessions. - Advanced UI components: building sophisticated UI features that dovetail effectively with user actions and responses. - Real-time data synchronization: making sure our user's data synchronizes in real time, ensuring a seamless user experience across devices. - Seamless integration with various third-party APIs, crucial for expansive functionality Id...

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    Project Title: Continious Speech Conversation Function Description: Simply replicate this on the frontend Our app is curretnly using push to talk function where as the backend is fully functional.

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    I'm seeking an experienced Flutter Developer to build application that's compatible with both iOS and Android platforms. The key goal for this application is to facilitate efficient information sharing. Requirements: 1. Strong knowledge of Flutter: You should be well-versed with its nuances, including JavaScript and mobile software development kits. A strong understanding of Dart is also required. 2. Cross-Platform Compatibility: Since the application has to be deployable on both iOS and Android platforms, experience in cross-platform mobile app development is critical. 3. Previous Work: If you've built information-sharing applications in the past, it's a big plus. Please provide examples of your past work related to this. 4. Attention t...

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    As the client of this project, I'm looking for a professional who specializes in Javascript, specifically in front-end development. The key tasks for this job are: - Debugging and enhancing the current functionalities of my project. - Improve and optimize the code, troubleshooting any issues that may arise. The project is built using React, therefore experience and high proficiency in this framework is essential. The ideal freelancer will be a person with a strong problem-solving skill, a keen eye for detail, and a deep understanding of the Javascript, particularly in the ReactJS framework. Prior experience in similar roles would be a plus.

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    I'm seeking a senior TON developer with expertise in smart contracts, Ton coin and Jetton. The ideal outcome is to integrate the frontend with an existing smart contract. Therefore, the person should be proficient in JavaScript, HTML/CSS and React. Key requirements and responsibilities: - Proficient in smart contracts, Ton coin and Jetton - Integrate the frontend with existing smart contract - Expertise in JavaScript, HTML/CSS and React If you're a seasoned TON developer who is also well-versed in frontend technologies like JavaScript and React, this could be a great opportunity for you.

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    ...need a highly skilled and knowledgeable web designer who is completely at ease working on cryptocurrency projects. This web design task involves working on an existing source code and making necessary edits while incorporating the following: - Implementing a responsive design that works smoothly on different devices. - Integrate payment options to facilitate transactions. The primary purpose of this website will be discussed privately but the focus is on cryptocurrency projects. Your skills should fundamentally include: - Proficiency in PHP, JavaScript, HTML and Graphics Designs - Experience with frontend designs and modifying existing codes - A deep understanding and interest in cryptocurrency and blockchain-related projects. We r...

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    Project is done. Just create 1 api and check api error. Not integrate. work with ftp only

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    I'm a looking for a freelance Flutter developer to assist with my mobile app project. The app is aimed at the general public and requires a few key features: - User Authentication: The app should have a secure user login/signup system. - Push Notifications: Implement a system to send push notifications to app users. - Integration with Databases: The app should be able to store and retrieve data from a database. The primary goal of this project is to create a fully functional mobile app. I'm looking for an experienced Flutter developer with expertise in these specific areas. The ideal candidate should have a solid understanding of mobile app development, particularly with Flutter, and have experience with database integration and push no...

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