API Development Jobs

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

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

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

From 51,066 reviews, clients rate our API Developers 4.85 out of 5 stars.
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    6 jobs found, pricing in GBP

    I'm in need of a professional full stack developer with notable proficiency in Python. I'm in pursuit of creating a high-performance web application, and require a professional who can ensure seamless backend and frontend integration. Key responsibilities: - Develop, design, and implement a high-traffic web application. - As the full specifics of required functionalities are yet to be pinned down, anticipate involvement in developing diverse features as per the project's need. Required skills and experience: - Proficient in Python and familiar with its eco-system. - Comprehensive knowledge of building web applications. - Strong foundation in data structures, algorithms, and architecture design. - Exceptional problem-solving skills and attention to detail. - Open to working...

    £77 (Avg Bid)
    £77 Avg Bid
    11 bids

    I'm looking to have a comprehensive hotel management system developed that caters to all aspects of the hotel's operations. The system will need to include the following features: - Room reservations system - Check-in/check-out processes - Billing and invoicing - Channel manager interface - Expense management - Reports generation - User management - Agent panel - Point of sales - In house management - website and booking engine The system should be user-friendly, intuitive, and responsive. It needs to be designed in a way that enables the staff to easily access and manage the hotel's operations efficiently. Ideal Skills and Experience: - Proficiency in web-based application development - Prior experience in developing hotel management systems - Strong understanding of UI...

    £525 (Avg Bid)
    £525 Avg Bid
    138 bids

    As a cigar/tobacco B2B store, I'm looking for a skilled Opencart developer to create a comprehensive API connection between my online store and our InforSX ERP application. Key Requirements: * Develop a two-way API synchronization to allow for the seamless transfer of product information, inventory levels, order details and customer information. * Integrate my online store with CenPOS payment gateway, ensuring secure payment methods and a seamless checkout experience for our customers. * Implement reporting and reconciliation features within the CenPOS integration for easy management and oversight of transactions. * Develop customized tax modules within Opencart for handling varying tax situations such as excise, sales and other applicable state taxes in our operations. Ideal Skill...

    £155 (Avg Bid)
    £155 Avg Bid
    65 bids

    I am in need of a skilled API developer who can create an API for a financial analytics tool. The main functionalities I am looking for in this API include: - Provision of Real-time data updates - Implementation of robust Security measures - Seamless Integration with existing systems - Development of a user-friendly Back-end and front-end infrastructure for an investment and trading app. - Connection of accounts in Forex, Stocks and Crypto brokers and exchanges to show live and historical statistics - Copy trading / social trading / PAMM with risk management features (on the next project) - Connection of startup business and real estate accounts (on the next project) Key Skills and Experience: - Proficiency in Python, Ruby on Rails and other relevant programming languages and ...

    £824 (Avg Bid)
    NDA
    £824 Avg Bid
    34 bids

    Our laboratory management application, currently built with french, requires enhanced communication capabilities with Data Management Systems specifically for real-time data synchronization. Key requirements: - Facilitate seamless, real-time data exchange between our laboratory management application and the Data Management Systems. - Ensure data integrity and reliability throughout the synchronization process. Ideal skills and experience: - Proficiency in the programming languages French is built with to ensure seamless integration with the existing application. - Proven experience in developing real-time data synchronization mechanisms. - Strong understanding of data management systems to facilitate efficient communication and synchronization. - Ability to ensure the security, integri...

    £436 (Avg Bid)
    £436 Avg Bid
    19 bids
    All-in-One Food Delivery 11 hours left
    VERIFIED

    I'm looking to develop an integrated mobile application that will offer food delivery services. I want this app to be available on both iOS and Android systems. Here's the primary features that I'm looking for: - **Real-Time GPS Tracking**: I want my users to be able to track the delivery of their food. - **In-App Payment System**: A seamless and secure payment system that ensures a smooth transaction experience for my users. - **Ratings and Reviews**: A feature that allows users to rate and review the quality of both the food delivery service. Ideal Skills and Experience for this job: - Proficiency in developing cross-platform applications for iOS and Android. - Experience in integrating GPS tracking systems. - Previous work in developing in-app payment systems. - Underst...

    £375 (Avg Bid)
    £375 Avg Bid
    12 bids

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