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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, 337 API Development projects are completed every quarter on Upwork.

337

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: August 1, 2015
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  1. Cihat Gündüz

    Cihat Gündüz

    iOS & Rails-Developer, User Interface Designer

    Germany - Tests: 1 - Portfolio: 3

    English: Studying Computer Science at Karlsruhe Institute of Technology since 4 years I have already developed 7 apps on my own of which you can find the latest by searching for my first name "Cihat" on the App Store for iOS. For my apps I developed backends using Ruby on Rails which I now have a lot of experience with for using as an API and doing calculations on user data on the cloud. Last but not least I worked on 6 more Apps for customers who contacted me, which was a lot of fun so I decided to go for Freelancer.com. Looking forward for my first experiences here! Deutsch: Ich studiere nun schon seit 4 Jahren am Karlsruhe Institut für Technologie das Fach Informatik und habe nebenher bereits sieben verschiedene eigene Ideen als Apps verwirklicht. Diese Apps findet man schnell im App Store für iOS-Geräte, wenn man meinen Vornamen "Cihat" in der Suche eingibt. Für meine eigenen Apps lernte ich neben der iOS-Entwicklung zusätzlich die Entwicklung von Backends mithilfe von Ruby on Rails, worin ich mich jetzt gut auskenne. Damit bin ich im Stande APIs mitsamt Berechnungen in der Cloud basierend auf Nutzerdaten zu entwerfen. Zu guter Letzt habe ich noch an sechs weiteren Apps von verschiedenen Kunden gearbeitet. Da mir das ziemlich viel Spaß gemacht hat, habe ich mich entschieden, es auf Freelancer.com zu versuchen. Jetzt warte ich gespannt auf meine ersten Erfahrungen hier!

    $50.00 /hr
    0 hours
    0.00
  2. Vsevolod Z.

    Vsevolod Z.

    Python developer, Infrastructure Expert

    Ukraine - Tests: 7 - Portfolio: 2

    Computer Science Master, since 2000 successfully held positions of * Web Applications architect, Python developer and security expert; * Chief Technology Officer (CTO), * Chief Information Security Officer (CISO), * IT manager; System analyst, Solutions architect, Advisor; * UNIX systems and networks engineer (16 years of experience); Specialties Networks architect (MPLS, VLAN, internal routing protocols, BGP), UNIX OS family, Juniper/Cisco network equipment, Firewall, Network and software security (covering Payment Card Industry Data Security Standard), Network services monitoring, Backup solutions, LAMP/FAMP/BAMP/LNMP/FNMP/EBLAMP/XAMPP/XNMPP servers, Database administration, DNS, MTA, Software development, Web applications, Cloud computing, Virtualization, Load balancing and High availability clusters solutions. Practically experienced in programming (since 1993). Good knowledge of the common programming languages: C, PHP, PERL, Python, Javascript, SQL. Familiar with OOP (object-oriented programming), general theory of programming (can quickly learn any new programming language).

    $50.00 /hr
    742 hours
    5.00
  3. Neelam Kumari

    Neelam Kumari Agency Contractor

    Expert in iPhone and Android Development/UI Design (TOP RATED)

    India - Tests: 7 - Portfolio: 13

    I possess 5 years of experience of Mobile development using Jquery Mobile,SQL Lite,Objective C, C# ,HTMl 5 including API`s for startup companies and small businesses. I have developed wide range of Mobile application in Android/Blacberry/iPhone and Web Services. I am seeking opportunities to Mobile application I Have developed Numerous Business Apps and Native Apps.Find my Work in my Portfolio.

    Associated with: NetSet Software

    $13.00 /hr
    1,513 hours
    4.20
  4. Joseph V.

    Joseph V.

    CEO of Vent Software

    United States - Tests: 2 - Portfolio: 2

    As a programmer, I aim to create software solutions that push technological limits. It is my goal to stay ahead of the tech curve. Innovation is my best practice. In my opinion, the technology in this world is leaning towards mobile technologies. Entrepreneurs are striving to fill the mobile application gap. This space can be confusing without an engineer who knows the field. Let me help you create the next big innovation!

    $33.33 /hr
    3 hours
    5.00
  5. Hassan Asad

    Hassan Asad Agency Contractor

    Meteor JS/ Laravel / Woocommerce / Sensei / BadgeOS /

    Pakistan - Tests: 3

    Designing architectures and following up with the latest trends and technologies to make awesome applications. Significant work experience in Meteor, Laravel 5, WooCommerce, Sensei, BadgeOS, Angularjs, MailChimp with special attention to front-end development using LESS, Bootstrap and jQuery. Some secret optimization techniques using Redis for creating a superfast RAM based content cache. These days I am working on exciting new technologies like MeteorJS for a faster and snappier application architecture. Hands on with various engineering tools like Balsamiq, Invisionapp, Trello, Jira, Vagrant, Git, and several other project management suites. I take on projects that are challenging and have potential user base of more than several hundred thousands. This gives a scalability challenge which experienced engineers can only handle.

    Associated with: Mindblaze Technologies Agency

    $25.00 /hr
    3,773 hours
    4.97
  6. Pavel Vlasov

    Pavel Vlasov

    Software Engineer

    Russia - Tests: 5 - Portfolio: 1

    I’m a software engineer with more than 4 years of experiences. I like mobile technologies and apps, discover new destinations, meet new people and really like to share my knowledge and tricks with colleagues and friends. Beyond work, I attend tech conferences and hackathons, where sometimes I pitch with cool projects.

    $25.00 /hr
    252 hours
    4.76
  7. Jim Kubicek

    Jim Kubicek Agency Contractor

    IT Professional

    United States - Tests: 3

    I began my IT career in the US Army as an automation specialist in 1986. Since then I have been on the same path as IT is a passion, not a job for me. I have worked for very large companies (Sprint) to very small companies to include my own now. Over the years I have had the opportunity to work with system ranging from AIX and Solaris to Linux and Windows Server 2008 R2. Our company also runs a hosted environment under Citrix XenServer serving dedicated servers to Financial Software to any platform. I have personal experience in Perl Development, Wordpress installation, setup and administration. As well as Network Design and Administration, Database Design and SQL Scripting. Skills: Application Developer, Database Administrator, and Project Manager in a wide variety of business applications. Experiences span many industries to include, Telecommunication, Retail, Financial Services, and Business Process Outsourcing and more. Passions are software design and business process engineering. Always interested in migration, and business operational restructuring projects. Specialties: Strong logical thought process, contract negotiation, purchasing, business operations, and software design.

    Associated with: Kubicek Information Technologies, LLC Agency

    $25.00 /hr
    46 hours
    5.00
  8. Mateusz P.

    Mateusz P.

    Ruby Developer, Full Stack

    Poland - Tests: 1 - Portfolio: 2

    Ruby(on Rails) software writer with 3 years of (startup) experience. Most of my programming time I have spent at designing Restful API's, for mobile devices and web service's. I'm also e-commerce oriented owner and programmer, but what I love to do most is the Full Stack Development . I have a good sense of clean and useful design. Client satisfaction and optimized processes are my first thoughts before getting things done.

    $30.00 /hr
    87 hours
    0.00
  9. Narsimha Prasad

    Salesforce.com Admin, Developer, Sales & Service Consultant

    India - Tests: 1 - Portfolio: 2

    I Have total 3 years experience into the technology I strongly believe by using the Salesforce.com we can develop a powerful cloud applications by which we can make more business and to run organization more successful. In my professional experience i have done total 3 projects in which i involved in end to end implementation and deliver it on right time and supported the application after the deployment I have experience in customization & configuration the standard and custom objects and making the fields to relate each objects, assigning the profiles based on the object level and field level security and assigning to the users Following Administration skill sets which i am very familiar: 1. Customization & Configuration 2. Profiles, Users, Roles 3. Security, Permission sets 4. Work flow rules 5. Validation rules 6. Process Builder 7. Page Layout, Record types 8. Lookup, Master-Details, junction object relationship 9. Reports & Dashboard 10. Communities 11. Web to lead, case to lead 12. Data management 13. Data loader 14. Workbench 15. Chatter functionality 16. Salesforce Outlook Following Development skill set which i am very familiar 1. Visual force pages, Apex classes 2. Batch Apex 3. Triggers 4. Integration webservices(REST, SOAP) 5. Chatter API 6. JSON, XML, WSDL Worked on every aspect of salesforce.com ranging from Sales cloud, Service cloud, Marketing Cloud (Campaigns) , Collaboration Cloud (Chatter), Data Load, Portals, Sites, Custom Development, Integration's and developing/Installing AppExchange Tools.

    $15.00 /hr
    0 hours
    0.00
  10. Franco L.

    Franco L. Agency Contractor

    Web Developer - NodeJS / PHP / JS / SOA Apps / APIs and more

    Argentina - Tests: 8

    I'm able to create complete sites from scratch by using frameworks or iterate over your existing app. My knowledge is always growing (I dedicate time to read everyday), but if I've to name a few I would say GIT/SVN, bash skills (linux commands overall), databases (MySQL/SQL Server/MongoDB), HTML, CSS, NodeJS, PHP, Automation, Code Generators and much more If you take a look at the tags section of my profile you'll see more, but if you are doubting if I can do it, please don't hesitate to contact me! Sincerely, Franco Laiuppa

    Associated with: Franco Laiuppa (AGENCY)

    $38.89 /hr
    4,194 hours
    4.38