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?

Od 45,159 ocen, stranke ocenjujejo API Developers 4.84 od 5 zvezdic.
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    I'm looking for an experienced Bubble developer to create an integration with NameSilo's API and a complete checkout process. Bubble app: See attached for what you will be building. We currently manually manage all of our customers domains. We need the customers to have complete control and management capabilities from within our bubble app.

    €559 (Avg Bid)
    €559 Povprečna ponudba
    22 ponudb

    I am seeking a knowledgeable developer to build a real-time scoring and data API platform for cricket, football, and basketball. The platform needs to track live scores, player statistics, and match schedules for these sports in real time. Key Job Requirements: - In-depth knowledge of API development and real-time data integration processes. - Familiarity and passion for various sports particularly cricket, football, and basketball. - Ability to ensure the platform updates scores and stats every minute. Job Features: - Develop a platform capable of presenting live scores, player statistics, and match schedules. - Incorporate real-time updates, refreshing the data every minute. - Ensure the platform supports cricket, football, and basketball data. In summary, I require someone who can c...

    €1077 (Avg Bid)
    €1077 Povprečna ponudba
    56 ponudb

    In this AI project, our objective is to assemble a proficient team capable of sourcing APIs from various servers and seamlessly integrating them into our website. The aim is to offer a diverse array of AI models in one centralized platform, eliminating the need for users to search extensively. We highly value innovation and encourage candidates to propose solutions that leverage these existing codes to develop our own proprietary models. Our primary target market comprises countries lacking access to international union banks, making it difficult for them to procure foreign AI models. To address this, we plan to facilitate local payments using the respective country's banking APIs. Considering the high inflation prevalent in these regions, it's imperative that our subscription...

    €26245 (Avg Bid)
    €26245 Povprečna ponudba
    46 ponudb

    We are seeking an experienced API Developer to lead the development of a cutting-edge integration API for our WordPress-based platform. This project aims to enable seamless integration for third-party developers, enhancing our platform's capabilities. It aims to invoke all Wordpress pre-built functionalities. The ideal candidate will have expertise in a variety of programming languages, frameworks, and tools essential for modern API development. Project Objectives: - Architect and develop a secure, efficient integration API that meets our platform's functional and scalability requirements. - Produce comprehensive documentation and SDKs to assist third-party developers in integrating their applications. - Implement a robust testing framework to ensure the API's reliabil...

    €21 / hr (Avg Bid)
    Pogodba o nerazkritju informacij
    €21 / hr Povprečna ponudba
    103 ponudb

    I'm looking for a skilled developer, preferably with experience in working with DocuSign API. The goal is to incorporate specific features into this application including signing documents electronically on our website, creating and managing templates, and checking document status and history. As I am not well-versed in the pros and cons of particular programming languages or frameworks, I am open to the developer's suggestions. A specific design is ready for the application and I will provide more information on this during further discussions. The developer needs to replicate this design accurately into the application. In summary, the main requirements are: - Proficiency with DocuSign API - Ability to create an application around a predefined design - Openness ...

    €34 / hr (Avg Bid)
    €34 / hr Povprečna ponudba
    50 ponudb

    I require an expert in social media automation to create a unique, custom project for me. This system needs to manage actions for an unlimited number of Instagram accounts daily, autonomously handling the following: - Liking and commenting on posts. - Following and unfollowing users. - Sending automated Direct Messages. This platform is expected to be robust, effective, and user-friendly. Due to the scope of work, proficiency in programming, social media algorithms, Instagram API, and automation is necessary. Familiarity with pre-existing automation tools like Jarvee, FollowLiker, and Instazood is a plus, though this project requires a bespoke solution. The final deliverable should be a fully functional, easy to use system. The right freelancer will demonstrate a proven track re...

    €577 (Avg Bid)
    €577 Povprečna ponudba
    63 ponudb

    For this task, utilizing QuickBooks Desktop Enterprise edition, I need a proficient developer to build an API Connector that pushes financial transaction data into the QuickBooks Desktop system. The purpose is to streamline my bookkeeping process and minimize the risks for data error. The key responsibilities: - Establish a functional connection system between my finance server and QuickBooks Desktop Enterprise. - Specifically, the system should be able to push financial transaction data into QuickBooks seamlessly. Ideal skills: - Profound knowledge of QuickBooks Desktop API - Previous experience in data push mechanisms - Excellent understanding of financial transactions data structure. This project will require a careful understanding of QuickBooks API mechanism and financial dat...

    €100 (Avg Bid)
    €100 Povprečna ponudba
    3 ponudb
    Taxi App API Development 2 dni left
    VERIFICIRAN/A

    I'm looking for an experienced professional, who can develop a robust API that will be integral to my taxi app's functionality. Although no specific programming language is preferred, you should still display strong proficiency in well-known languages like Python, JavaScript, or Ruby. The key functionality for this API would include but not be limited to: 1. TripID (String- VARCHAR) 2. Origing Coordinates -(Longtude and latitude separated by comma) 3. End Coordinates -(separated by comma not more than 8 decimal places) 4. Start Time -(local time without "T" and decimal after seconds) 5. End Time -(local time without "T" and decimal after seconds) Fare Amount Distance (interger only in meters) 8. Rating 9. Driver's Earning 10. Driver Licen...

    €305 (Avg Bid)
    €305 Povprečna ponudba
    42 ponudb
    Java Spring Boot Developer 19 ur left
    VERIFICIRAN/A

    We seek a Java developer proficient in Spring Boot to create a comprehensive API that handles the submission, signature validation, and data extraction of digitally signed PDF documents, specifically driver licenses. This project requires a developer with a strong understanding of digital signatures, PDF processing, and OCR (Optical Character Recognition) technologies. Project Overview: Development of a Java Spring Boot Application: The core requirement is to develop an API that allows for the secure submission of digitally signed PDF documents. The primary focus is on driver licenses. Digital Signature Validation: Implement functionality to validate the digital signature of the submitted PDF documents, ensuring they have not been tampered with and are authentic. Data Extraction: Extrac...

    €183 (Avg Bid)
    €183 Povprečna ponudba
    26 ponudb

    Mobile App Developer for Android and iOS Platforms with API Integration We are seeking a mobile app developer with proven experience in developing and launching applications for both Apple and Android platforms. The primary objective of this project is to create a unique messaging application, specifically designed for courier companies, with advanced package tracking and dimension recognition features. Responsibilities: Develop a mobile application for iOS and Android devices that seamlessly integrates package tracking, real-time notifications, and payment system functionalities. Implement integration with the company's existing system through an API, following the provided documentation. Design an intuitive and attractive user interface that allows users to navigate the applicati...

    €818 (Avg Bid)
    €818 Povprečna ponudba
    103 ponudb

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