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 52,414 reviews, clients rate our API Developers 4.82 out of 5 stars.
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    9 jobs found, pricing in INR
    Quotex Trading Platform API 6 days left
    VERIFIED

    I'm in need of an experienced developer to create a custom API for the Quotex trading platform. Specifically, I am looking for someone who has expertise in API development. The API should have the following features: - Real-time market data streaming - Trade execution - Account balance retrieval - Comprehensive error handling with detailed error messages - High-performance optimization for fast execution - API calls should be fast Ideal skills for this project include: - Deep understanding of Python - Experience in designing and developing APIs - Background in trading platforms or financial services - Strong problem-solving skills - Ability to optimize for high performance Your primary goal will be to produce a reliable, error-free, and fast API that can efficiently facilitate trad...

    ₹13433 (Avg Bid)
    ₹13433 Avg Bid
    15 bids

    I'm seeking a skilled developer with substantial experience in REST API endpoints and Esri. The role will involve the following tasks: - Implementing a REST API Endpoint. You should have a solid understanding of secure and effective API Restful Endpoints - Ensuring the API supports Esri for both Server and Portal Consumption. This requires an adeptness in managing data flows and integrating varied format support systems. - Accessing and managing the Map services and Feature services functionalities on the Esri Server and Portal. A strong grasp on Esri's map and feature services, and the ability to extract or manipulate data as required, will be key for this task. I have the data, I just need Portal and Server to consume the data. WFS does not work.

    ₹99625 (Avg Bid)
    ₹99625 Avg Bid
    66 bids

    I need a developer to create a web-based API connector that will link Selro and Inventoro. The primary goal of this connection is to facilitate sales forecasting. Key Features: - The API connector should import both orders and product data from Selro to Inventoro. This is crucial for enhancing the sales forecasting capabilities in Inventoro. - The app should be web based. This ensures flexibility and ease of use. Ideal Skills and Experience: - Proven experience in developing web-based API connectors, or similar applications. - Familiarity with both Selro and Inventoro APIs is a plus, but not a requirement. - Understanding of sales forecasting methodologies and inventory management systems is highly beneficial. - Ability to work with a custom-built web app, and ensure it is scal...

    ₹20108 (Avg Bid)
    ₹20108 Avg Bid
    69 bids

    I am seeking an experienced API developer to integrate Zenbooker and ActiveCampaign seamlessly. Primary Tasks: - Develop a strong integration that syncs customer contact data in real-time between the two platforms. - Implement email marketing automation capabilities through this integration. Qualifications: - Proven expertise in API integration specifically with both Zenbooker and ActiveCampaign. - Familiarity with CRM systems and their functionalities. - Reliable and efficient, with a track record of delivering on tight deadlines. The objective is to have a smooth and consistent data flow between the two CRMs, ensuring all customer data is real-time and our marketing automation efforts are efficient.

    ₹2253 (Avg Bid)
    ₹2253 Avg Bid
    37 bids

    I will send you the necessary work diagrams and billing instructions. I don’t accept template messages, I block them immediately. Develop an API gateway for integration with [Company 1] to facilitate the transfer of games, subscriptions, and other services while ensuring the anonymity of connected aggregators from [Company 1]. Main Tasks and Requirements: Integration with [Company 1]: Develop a secure and reliable API for integration with [Company 1], enabling the transfer of games, subscriptions, and other services. Hide information about connected aggregators from [Company 1], presenting data on available products under the Code Games brand. Content and Commission Management: Implement a content management system to manage the product catalog available to [Company 1] and its c...

    ₹201418 (Avg Bid)
    ₹201418 Avg Bid
    64 bids

    I will send you the necessary work diagrams and billing instructions. I don’t accept template messages, I block them immediately. Develop an API gateway for integration with [Company 1] to facilitate the transfer of games, subscriptions, and other services while ensuring the anonymity of connected aggregators from [Company 1]. Main Tasks and Requirements: Integration with [Company 1]: Develop a secure and reliable API for integration with [Company 1], enabling the transfer of games, subscriptions, and other services. Hide information about connected aggregators from [Company 1], presenting data on available products under the Code Games brand. Content and Commission Management: Implement a content management system to manage the product catalog available to [Company 1] and its c...

    ₹203504 (Avg Bid)
    ₹203504 Avg Bid
    51 bids
    JASMIN SMPP SERVER 2 days left
    VERIFIED

    We want to set up a JASMIN SMPP server, then connect it to our sms platform to allow our customers to use SMPP. Apart from the basic functionalities of JASMIN, we want these additional functionalities: - The possibility of assigning prices by network or by country - Have access to the JASMIN client interface - Integrate the JASMIN Rest API into our existing SMS platform. - Create, modify SMPP or http accounts -SMPP Client/Server -HTTP Client/Server - Based on the AMQP broker for store&forward mechanisms - Advanced message routing: Simple & static, Roundrobin, Failover, Leastcost.. - Standard message filtering: TransparentFilter, ConnectorFilter, UserFilter.. - Advanced message filtering: EvalPyFilter - Advanced messaging/routing mechanisms enabled by message interceptor ...

    ₹7426 (Avg Bid)
    ₹7426 Avg Bid
    14 bids

    ----- this is a project for freelancers only, i'm not looking for a companies. please state that you're a freelancer at the top or your offer ------ ----- please specify your experience with OPENAI API and Python ----- I need to develop a project for matchmaking between real estate brokers (seller and buyers) this project need to be implemented using Python and OPENAI API the project requirements can be found here:

    ₹120317 (Avg Bid)
    ₹120317 Avg Bid
    60 bids

    Currently, I am in need of a competent Android developer to build my MLM app. This app should be designed with a professional and corporate aesthetic and should contain the following features: - User registration and login functionalities - Genealogy tree visualization - Comprehensive transaction history tracking - A system for all types of income generation - A tree showcasing all users - A reward and gift system for active users - Comprehensive modeling of a variety of MLM plans including Binary Plan, Matrix Plan, and Unilevel Plan using various algorithms. Skills and Experience: - Android development - Knowledge of MLM businesses and algorithms - Algorithm development - Adept at corporate design - Experience developing reward systems - Proficiency in developing registration and t...

    ₹59992 (Avg Bid)
    ₹59992 Avg Bid
    31 bids

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