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API Development Job Cost Overview

Typical total cost of Upwork API Development projects based on completed and fixed-price jobs.

Upwork API Development Jobs Completed Quarterly

On average, 334 API Development projects are completed every quarter on Upwork.

334

Time to Complete Upwork API Development Jobs

Time needed to complete a API Development project on Upwork.

Average API Development Freelancer Feedback Score

API Development Upwork freelancers typically receive a client rating of 4.65.

4.65
Last updated: July 1, 2015
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  1. Aaron Pardes

    Aaron Pardes

    Django/Flask/Rails Web Developer

    United States - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    I have a B.S. in Industrial and Systems Engineering and having been doing entrepreneurial web development for 10 years. I specialize in back-end development with Python frameworks (Django and Flask) but I am also proficient with Ruby on Rails. I have worked with many small startups as well as Fortune 50 companies in capacities ranging from developer to product manager. I have extensive experience building and interacting with RESTful API's, data modeling, and project management. You can view my full CV at my website http://pardes.io

    $60.00 /hr
    1,018 hours
    5.00
  2. Andriy B.

    Andriy B. Agency Contractor

    PHP | JQuery | Wordpress | HTML | CSS | C# | ASP.NET | SQL

    Czech Republic - Last active: 1 day ago - Tests: 5 - Portfolio: 5

    Over the last 15 years, I have designed and developed many turn-key solutions for small businesses using: - C#/ASP.NET and Microsoft SQL as a data warehouse - PHP/HTML/CSS/JS/jQuery and MySQL as a data storage I have huge experience with Wordpress CMS based development, third-party<->Wordpress integration, theme and plugin development skills. I have a lot of experience with different API and Services development and integration: - Web-Services (SOAP, XML, REST, JSON) - Payment Processors and billing solutions integration using PayPal API, Balanced Payments API - Map Interactions (Google Map API, Open Street Map API) - Web Data Extraction (Web Scraping) and Manipulation In addition, I have strong experience with database design and database programming for Microsoft SQL Server and MySQL databases. My core competency also lies in complete project management of a new development project, and I am seeking opportunities to create the software from the ground up for you or your business.

    Associated with: Softlogic Agency

    $25.00 /hr
    2,011 hours
    4.97
  3. Shaharyar H.

    Shaharyar H. Agency Contractor

    Salesforce Certified CRM Expert - Top Position in Salesforce

    Pakistan - Last active: 1 day ago - Tests: 6 - Portfolio: 15

    Over the last 10 years, I have analyzed, designed and developed a wide range of business systems and applications. My profile is top ranked on Upwork as Upwork has certified me as one of the highest performing freelancers around. I am a Salesforce.com certified developer, administrator and consultant with over 200+ successful implementations worldwide. My major expertise is in the following areas of Salesforce Development Services:- - Apex Classes - Apex Triggers - Visual Force pages - Force.com Sites - Integrations (WSDl / Json/ XML) - Rest API - Web services - Developing AppExchange Products - J Queries, Java Scripts, NodeJs, Angular JS - Payment Gateway integration with Salesforce Salesforce Integration Services:- -Integration of Salesforce with external web and desktop apps. -Develop custom in Salesforce to be used by other apps. - PHP website integration with Salesforce - Wordpress to Salesforce integration and plug-in development -.Net and Java Application integration with Salesforce - Native Android & iOS app development using Salesforce API and data Administration and Customization Services:- - Configuring the Vanilla Salesforce.com - Object/Field Creation - Setting up Users, Roles & Profiles - Creating Workflow Rules - Writing Validation Rules - Creating Page Layouts - Loading data via Data Loader & Jitterbit Data Loader - Amazing analytics by creating various Reports & Dashboards - Sharing Rules - Views / Lookup / Search - Chatter Functionality - AppExchange Tools - Home Page Components - Multi Currency - Data Cleansing - Data Entry - Data Research - Setting up Campaigns & Email Marketing Tools I WILL ENSURE YOU MY BEST SERVICES FOR YOUR JOB.

    Groups: Microsoft Certified Professionals, salesforce.com...

    Associated with: S3Technology

    $20.00 /hr
    7,451 hours
    4.79
  4. Leonard Leong

    Leonard Leong Agency Contractor

    Sourcing Expert | Web Marketer | Binary Options Trader | Web Developer

    Philippines - Last active: 1 day ago - Tests: 16 - Portfolio: 5

    Ambitious, energetic, strong-willed, charismatic, organized, creative, thoughtful, and passionate leader who plans and execute innovative solutions that paves the ways to win-win situations. Experienced in leading a complex organization that has a distributed workforce as a majority of its staff in providing world-class cost-effective services to a diverse clientele that includes: Automobile Dealerships, Marketing Agencies, Book Publishers, Law Firms, Event Planners, Coffee Retailers, etc. If you're looking for a professional whose goal is to provide clients cost-effective solutions for their business processes, then please feel free to tell me how I can be of service.

    Associated with: ROO Agency

    $9.99 /hr
    6,487 hours
    4.93
  5. Eric K.

    Eric K.

    US-Based Software Project Management & Web App Development

    United States - Last active: 03/04/2013 - Tests: 6 - Portfolio: 13

    **** Please DO NOT contact me if you are unable to allocate a reasonable budget for your project. Note that I am U.S based, and I have been working in the web industry for over a decade. I am posting this due to the countless inquiries I receive daily with insulting budgets and "bids" (ie. - $400 for a custom logic web app that would require over 100 hours of development). Should you require an estimate, please feel free to inquire and I can provide you with a reasonable quote, including both cost and hours broken down. Thank you for your understanding in the matter. ***** Hi, my name is Eric and I'm a Sr. project manager with roots in PHP development, as well as an entrepreneur with over a decade of expertise in the web & mobile development sector. I have extensive experience in working with mid to enterprise level companies on custom app development & corporate site projects, as well as management of large-scale web projects that require a team of expert creatives & developers. I've had the privilege of working with various established tech companies & startups over the years such as Accenture, Junk My Car, & Google. Through these positions, I've learned what it takes to create, deploy, and maintain intuitive, aesthetically pleasing web applications utilizing the latest web technologies. My passions within the industry are user interface (UI) design, custom PHP development, and enterprise level eCommerce builds. I also have an eye for the latest internet trends, while still being able to maintain a sense of originality in all projects that I lead. A few of the many web/IT skills that I specialize in are custom PHP MVC framework development (Codeigniter, Yii), MySQL database design/management, custom CMS driven web development (Wordpress, Expression Engine), Salesforce management/customization (including APEX development & advanced reporting), Unix & MS server deployment/administration, strategic UX & A/B testing, IP telephony (including Twilio API development; CTI/PBX), and enterprise eCommerce development (custom Magento development, including eBay integration). HTML5, CSS3, and jQuery are commonplace in all responsive front end projects that I've been a part of. Search engine optimization (SEO) is also a major skillset that I implement on a daily basis (both organic & PPC), and I'm an expert in utilizing/integrating SEOMoz & Hubspot. I've been creating & managing client Google AdWord campaigns for over 7 years now, and I am also an authorized Google Partner, as well as a Google Engage agency partner. My abilities in communication and project management are quite extensive, and I'm an advocate of implementing agile/SCRUM methodology & software. I'm familiar with efficiently utilizing kanban & burndown charts to increase productivity within development projects, especially when used in Pivotal Tracker or Jira. Much of my management skills have been acquired from running a successful development firm for over 5 years. Above are just a portion of the skills that I've acquired & mastered throughout my endeavors in the web industry. As this industry is ever-changing & evolving, I constantly strive to learn new web technologies whenever possible. I appreciate taking time out of your day to read through my profile, and I encourage you to view my portfolio on here as well. Should you have any inquiries or potential projects that you'd like to discuss, feel free to contact me with further details and I will get back to you as soon as possible. Thanks again, and I look forward to hearing from you! Eric K. Atlanta, GA

    $40.00 /hr
    1,178 hours
    5.00
  6. Muhammad umer

    Muhammad umer

    Full-time Drupal Guru/ PHP/ FB App /wordpress/Joomla

    Pakistan - Last active: 3 months ago - Tests: 7 - Portfolio: 40

    Hello! I am able to develop your site by using all the latest web technologies but i will prefer Drupal. In addition, we have powerful business experts and engineers to provide business systems for customers, such as CRM, BPM, ERP. I offer high quality enterprise software/web development/maintenance/testing / deployment services using Web2.0 technologies and have 7+ years of strong experience in the following areas : - Drupal - Drupal Customization - Linux - JSP/ASP.NET/PHP/MYSQL - XML - AJAX - Flex - JavaScript, CSS, ActionScript, JQuery, Ext JS - Object Oriented Design - MS SQL, ORACLE ACCESS, PostgreSQL - Open Source technologies - Expression Engine, Wordpress, Joomla, Drupal, Vbulletin, LightCMS, CodeIgniter, Symfony, CakePHP - osCommerce, X-Cart, Zen-Cart, Magento, CS Cart, prestashop, open-cart - Website Design, PSD to HTML conversion, HTML5 In specially, I love Drupal. Thanks :-)

    $27.78 /hr
    43 hours
    4.58
  7. Jonathan C.

    Jonathan C.

    Consultant

    United Kingdom - Last active: 1 day ago - Tests: 1

    I have a UK university PhD, in Artificial Intelligence, and the business management skills to match, together With 15 years of Delphi, C++, Java, SQL, and Object-oriented analysis and design experience. I specialise in development including protocol specification, thread management, distributed communication and database transaction management. I have retro-fitted software in tasks ranging from installing improved modules to sophisticated Artificial Intelligence sub-systems. I can provide the often essential empathy with the contract holders, and the pragmatics to satisfy the demands of management. I have 20 years of competency in the software industry, and have a proven track record that will guarantee the successful realisation of your system requirements. I have designed and implemented systems used by multi-billion turnover corporations around the world, saving millions of pounds savings per year. My scope in system design and development ranges from individual utilities and embedded operating systems, through to large-scale corporation-wide distributed architectures. I am also able to provide a code debugging and fixing service, either onsite or online. I can give workshops and can facilitate training of new software developers, both in-house and online. I have managed my own team and maintained their skills matrices, ensuring training has been current. I have defined and managed new product releases and have written instruction manuals for new and "super" users at the customer end of the project.

    $105.56 /hr
    2,639 hours
    4.96
  8. Ankit R.

    Ankit R.

    Shopify, Magento and Wordpress Expert

    India - Last active: 1 day ago - Tests: 6 - Portfolio: 6

    Talent is just a gift reflected as a quality I have 5 years of web development experience. Here is my key skills that I am very experienced in each : ✔ Native PHP Development , Organised , OOP , and Commented clean code. ✔ WordPress: WooCommerce, BuddyPress, bbPress, Genesis, OptimizePress, ClassiPress, Thesis, PageLines, Gravity Forms ✔ e-Commerce: Woocommerce, Magento, Prestashop, OpenCart, Shopify, BigCommerce, Spree, Amazon Webstore, Volusion. ✔ Front-end: HTML5, CSS3, SASS/LESS, Bootstrap, Javascript, jQuery, Angular. ★ love Your Work means You Are Special ! ★ Available to work on big projects, on-going projects , and quick modifications. Please feel free for a friendly talk

    $12.00 /hr
    183 hours
    4.96
  9. Ajay P.

    Ajay P. Agency Contractor

    PHP / Design Expert

    India - Last active: 1 day ago - Tests: 9 - Portfolio: 16

    RECENT TEST: *****FIRST RANK IN WORDPRESS TEST*****. - 6+ years strong experience in following areas: - PHP (frameworks like Wordpress, Cakephp, Magento, Codignator, etc...) - Different API's (like: Facebook API, Twitter, linkedin, google map, google analytics,etc...) - Amazon - HTML - CSS - jQuery - Javascript - Ajax - Xml - Payment Gateways - Web Services - Graphs - phpfox

    Associated with: NNC Infotech (P) Limited.

    $10.00 /hr
    1,592 hours
    4.99
  10. Rupom Razzaque

    Rupom Razzaque Agency Contractor

    Backend Developer - Web Scraping & Parsing, Big Data & ZF2 Experienced

    Bangladesh - Last active: 28 days ago - Tests: 3 - Portfolio: 13

    [Only Available for Long Term Jobs] With more than 12 years engagement in various programming projects, I've been providing advanced level of web scraping (or data mining / extraction / crawling / screen scraping or whatever you call it), parsing, searching & reporting AS WELL AS various backend web development services since 2006. So far I have contributed in 100+ scraping / parsing, aggregation & backend driven projects which include data extracting from email boxes (like Yahoo, Gmail, MSN, etc.), content scraping from property sites, product scraping (like Google Products, Amazon, Buy.com, Dell, NewEgg, Walmart, Overstock, Boutiques.com, etc.), deal & coupon scraping, job site scraping and many more -- their aggregation & backend data management as well. I can handle both the frontend & backend of any aggregation assignment; no matter it is on a known CMS like Drupal, WP or any custom one. I can also build custom CMS for your own. My goal is to develop & deliver quality applications for my clients and make sure that those serve their intended purposes. I'm proficient in object oriented programming, MVC based frameworks, design patterns, regular expressions, database ORMs, custom web service / API development, algorithm design, and server administration. I have capability to develop and manage high level web applications in a scalable manner. As a professional developer, I like to work with professional and serious employers only. My primary field of interest is advanced web data scraping / mining & parsing and aggregating them as needed, but I'm also fluent in other sections of a project. I'm only looking for long-term opportunities that require strong technical knowledge to develop quality projects. Please don't invite me if you're looking for a short-term developer.

    Groups: Application Developers Alliance, Bluehost Developers and Designers

    Associated with: ProScraper

    $35.00 /hr
    6,308 hours
    4.79