RESTful API Jobs

RESTful API stands for Representational State Transfer Application Programming Interface, a term coined by Roy Fielding in 2000. A RESTful API allows an application to communicate with other applications. It is based on the structure of a website, where the data and information are stored in the form of resources. RESTful APIs make use of these resources to provide a certain level of accessibility and data exchange between different systems. This makes web development more efficient, as resources can be accessed easily and quickly.

A RESTful API Developer is responsible for designing and developing APIs to facilitate communication between different applications. The Developer will use their existing skills in web development to create APIs that are secure and reliable, that can provide clients with the ability to access resources for different types of usage. The Developer will also ensure that the APIs are well documented so that any updates or changes to their backend programming environment don't cause any disruptions with existing communication workflows.

Here's some projects that our expert RESTful API Developer made real:

  • Creating browser extensions using Microsoft Graph API
  • Building webpages for flight searches & results
  • Developing applications for React Native in PHP
  • Retrieving data through various APIs, presenting it in a table format & sending email notifications
  • Developing & integrating simple authentication functions into Laravel apps
  • Integrating WordPress REST APIs into mobile apps via PHP
  • Building middleware systems to convert HTTP GET requests into REST calls
  • Developing programs in C# .NET using the WordPressPCL Package Library
  • Developing cloud services programs using Cloud Flare's API
  • Creating tools to trigger Customer orders with CSV file uploads

At Freelancer.com, our RESTful API Developers are highly experienced professionals dedicated to delivering innovative solutions that meet our clients' specific needs! Our Developers have successfully completed various projects for a wide range of clients, enabling quick and secure data exchange between applications. If you’re looking for an experienced developer to create an efficient, reliable and secure API system, then post your project now and hire the most suitable API developer here on Freelancer.com!

From 106,772 reviews, clients rate our RESTful API Developers 4.87 out of 5 stars.
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    17 jobs found, pricing in USD

    We are looking for a Backend/Full Stack Software Engineer for a wellness & beauty livestream mobile iOS platform. We have a dev team of React Native developers who will be managing and coding. We are an inclusive, passionate, lean, agile startup looking for fun, intelligent, hardworking and committed people to join our team. Minimum Qualifications: BS degree in Computer Science or the equivalent hands-on experience Responsibilities: • Work with mobile team to design and implement features • Build and maintain HTTP APIs • Participate in the definition of new mobile features and experiences • Fix bugs and improve performance • Requirements • Node.js • MongoDB • Experience building RESTful APIs • AWS (EC2, Elastic Beanstalk) • Sour...

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    72 bids

    Bought a react eCommerce template (front-end & back-end) from theme-forest. Provided documentation is not enough for server side installation. I need professional assist to install the project on server side and install the theme on server side.

    $21 (Avg Bid)
    $21 Avg Bid
    5 bids

    I need to do two things. Read first so you know issue. 1) short term - See if Plaid API works for stocks, stock options and my 5-6 brokerage institutes. This will take 1 day max and non chargeble. It will open business opportunity for me and hence I will pa-y for the project. I tried to speak to sales but they were non technical and I could not get answers from their website. We will not be trading using plaid API but I want to do portfolio analysis. I want to know if we can get my stock options/stocks positions using plaid API or not from my E*Trade account and what accounts (from what brokerages ) I can pull from ? 2)Plan is to develop a portfolio analysis tool no matter where your account is -using Plaid API. Which will be chargeble. This is what I am looking for in bids. In some ...

    $509 (Avg Bid)
    $509 Avg Bid
    43 bids

    I'm looking for an expert (8+ years) Python Django 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 issue...

    $573 (Avg Bid)
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    103 bids

    I'm seeking a skilled developer to work on the llmRAG project. Your role will focus on incorporating key features into the software, as well as ensuring a professional and corporate design. Key Features: - Collaboration Tools: Implementing robust collaboration tools to enhance team productivity. - Knowledge Base: Integration of a comprehensive knowledge base to support users in utilizing llmRAG efficiently. Programming Languages: - Python and JavaScript: The software should support these two languages effectively. Design Requirement: - Professional and Corporate: The design of the llmRAG interface should reflect a top-notch professional and corporate look. Ideal skills for this project include proficiency in Python and JavaScript, experience in developing collaboration tools, and ...

    $200 (Avg Bid)
    $200 Avg Bid
    31 bids

    I'm looking for an Intermediate ReactJS/React Native developer with some experience in Directus to work on both web and mobile applications. We have our concept built out and will need strong developers to bring it to reality. Our demo, currently developed in Appsmith, is a speech to medical chart note program that integrates large language models to perform the heavy lifting of transforming speech to text, and then taking the text and generating a medical SOAP note that will lessen the burden of medical professionals. Budget allows 10-40 hours per week depending on experience, performance, and budget. Please provide your best offer in your bid as we will be speaking with many candidates and selecting up to three to work on a team. Key Responsibilities: - Developing new user-facing...

    $5 / hr (Avg Bid)
    $5 / hr Avg Bid
    48 bids

    I'm in need of a competent Mobile developer with expert knowledge in Ionic Portal technology. The main concept is for an application to be designed using this technology, which will allow other developers to write additional small functional programs. Key Functionality Requirements: - User authentication - Database integration - Push notifications The mobile application should be compatible with the following platforms: - iOS - Android In terms of design aesthetics, I prefer a clean and minimalistic design. Successful bids are expected from developers with proven experience in Ionic Portal technology, mobile app development across iOS and Android platforms, with a keen eye for clean and minimalist design. Your familiarity with user authentication, database integration, and push ...

    $1140 (Avg Bid)
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    102 bids

    I'm looking for a skilled developer familiar with WordPress, BricksBuilder, and API integration, specifically with the Viator Affiliate API. The aim is to enhance my website by displaying various tours and activities, along with a simple search functionality for users to seamlessly locate their preferred tours. Key tasks include: - Integrating Viator's API to my WordPress site that's built on BricksBuilder - Displaying tours and activities, updating in real time with API calls to Viator - Designing display in a clean, minimalist style - Creating a simplistic search bar for tour navigation Search - have a search on the homepage with a dropdown for suggestions (see section 5 of golden path) Search results - have a dedicated results page with product previews (see section...

    $331 (Avg Bid)
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    132 bids

    I need a simple Login Page using Sign-in with Google for authentication. - Setting up Google sign-in on Login page - Get Google ID Token after authentication - Send the token to a server route for user creation. - This does not require collecting additional information during the user sign up process beyond what's standard with Google Sign-in. - Note the focus of this project is specifically on the sign-up process of new users.

    $149 (Avg Bid)
    $149 Avg Bid
    38 bids

    As a business seeking state-of-the-art web solutions, I prioritize Fullstack development for this project. The Wanted Skills: - Mastery in Angular for the frontend development - Knowledge of User authentication, Database integration, and API integration for the backend development Frontend: The frontend development is a core part of this project, and hence, expertise in using Angular is a must-have. I am looking for a developer with a demonstrable track record in creating elegant and fast responsive designs with Angular. Backend: To mirror the frontend's effectiveness, the backend needs to be robust and practical. Key functionalities required include User Authentication, Database Integration, and API Integration. Hence, solid experience in implementing these backend functionalitie...

    $722 (Avg Bid)
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    47 bids
    .NET Core API 8.0 Fix it 4 days left
    VERIFIED

    I am currently valiantly battling with a multitude of issues with my .NET Core API, and I require the help of a seasoned professional. In need of someone who is proficient at: - Troubleshooting and fixing authentication errors: I am routinely encountering authentication issues which is deeply affecting usability. - Enhancing data consistency: I have been observing a distressing amount of data inconsistencies that need rectifying. - Implementing user registration and authentication: I need to provide my users with a smooth registration and login process to enhance platform accessibility. - Building data validation and error handling mechanisms: My API is in dire need of solid data validation and error handling procedures to increase reliability. - Integrating with external systems: The API...

    $46 (Avg Bid)
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    34 bids

    I would like to manage LiteSpeed Web ADC with API since I made a external control panel wrotten in PHP and what I would like to do is to use LiteSpeed Web ADC to manage user registration, user settings, backend IP, SSL certificates, user permissions, domains, etc... with my external panel. I am OK to use cPanel API if it is not possible to use LiteSpeed Web ADC native API. What I am asking to the freelencer is to set API endpoints for my needs which I said above. REST API are OK. LiteSpeed Web ADC is a Load Balancer. I am not referring to LiteSpeed Web Server which is another thing.

    $24 (Avg Bid)
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    7 bids

    We are seeking a highly skilled Power BI Expert with a strong focus on managing and analyzing Power BI DataFlows. The successful candidate will be adept at extracting and interpreting metadata related to data refreshes, performance metrics, and configurations, including incremental refresh statuses. Key Responsibilities: Develop and maintain advanced Power BI reports and dashboards. Utilize Power BI RestAPI and PowerShell to extract metadata about DataFlows, including refresh frequencies, duration of each refresh, and the status of incremental refresh capabilities. Create dynamic and interactive data visualizations that provide insights into DataFlow performance and efficiency. Set up and manage refresh schedules for Power BI reports to ensure data accuracy and timeliness...

    $22 / hr (Avg Bid)
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    41 bids

    I'm looking for a skilled Java developer to integrate the Coinbase, Kraken and many other cryptocurrency APIs into my project. Key Objectives: - Integration of Coinbase, Kraken APIs and many other's exchanges api's - Implementation of wallet balance retrieval functionality Ideal Skills: - Proficient in Java programming - Experience with cryptocurrency exchanges and APIs - Prior work with well known crypto exchange's APIs preferred - Strong understanding of API integration and security Please provide examples of similar projects you've worked on and your approach to API integrations. Your ability to meet the project's technical requirements and ensure security will be crucial.

    $27 / hr (Avg Bid)
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    13 bids

    I'm looking for a skilled Android app developer to create a beverage vending machine system with a backend web application. The system should be capable of providing a seamless experience for customers, ensuring convenience and efficiency in the beverage ordering process. Key Features: - The Android app will need to include the following functionalities: - Ordering beverages: The app should allow users to browse through a selection of beverages and place orders. - Payment processing: The app should offer a secure and user-friendly payment gateway for transactions. - Brewsing: An additional feature that enables users to brew their own beverages in the vending machine. - The payment processing system should ideally support: - Credit/debit cards: Seamless integration f...

    $363 (Avg Bid)
    $363 Avg Bid
    16 bids

    I'm looking for a skilled React developer to assist in the creation of a single-page application with specific features. Key Responsibilities: - Develop a single-page application with a focus on user authentication. - Implement a broadcast and group creation functionality on the application. - Integrate a Whatsapp-based template broadcast feature. Ideal Skills and Experience: - Proficient in React development. - Previous work involving user authentication functionalities. - Experience in implementing broadcast and group features. - Familiarity with integrating Whatsapp API for template broadcasts. This is a unique project that will require a developer with a keen eye for detail, as it involves the creation of a seamless single-page application with Whatsapp integration.

    $173 (Avg Bid)
    $173 Avg Bid
    20 bids
    Web page for a finance utility 8 hours left
    VERIFIED

    I'm looking for a skilled developer(s) who can design/code a page or two and write me an utility for finding a portfolio market price using III party API. I have a stock and or stock option expiring lets say in June 2024 (Call or Put). We will convert data to voice file. Your finance/investment background is most important so don't apply/bid without reading or knowing//. I will be forced to delete all bids coming in next 30 mins.

    $134 (Avg Bid)
    $134 Avg Bid
    37 bids

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