511 API developers in 171 agencies found

OA
Test Automation QA Engineer | QA Team Lead | QC| Manual QA Engineer | Ruby | Python
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Mar 2019
NF
Senior Automation QA Engineer | Manual QA/QC Engineer | Python
6+ year's experience in Software Testing, substantial expertise in Web, API, desktop testing, and quality improvement. Experienced in setting up and supporting build and continuous integration systems...
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Mar 2019
VG
QA engineer with strong experience in automation, manual and API testing
A talented QA engineer with 2+ years of experience who tackles grand technical challenges. Victor has a strong background in manual testing, automation testing with Selenium, Puppeteer, Java, and Kata...
3 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Mar 2019
SM
Android developer with decent backend expertise
All rates are indicative, annual rate includes 20% discount
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Updated: 14 Mar 2019
Automation QA Engineer | Ruby | Python | C/C++ | JavaScript
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Mar 2019
JC
Test Automation QA Engineer | Java | Python | Performance testing | QA Lead
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Mar 2019
iOS developer
Middle+ iOS developer with extensive experience in the creation of various native mobile applications using both Objective-C and Swift. Constant self-improvement and creative approach help me find t...
4 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 19 Mar 2019
VG
Software QA Tester Web & Mobile apps| Manual and Automation QA/QC Engineer | QA Analyst |6 years experience| 6 projects in a backpack
All rates are indicative, annual rate includes 20% discount
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Updated: 18 Mar 2019
Full stack developer (.NET/REACT)
Over the last 5 years I have developed many web, desktop and mobile applications using .NET and C#. Expertise: ✔️ Voice & Video, Messaging - Twilio API ✔️ Desktop development - WPF, Winforms, con...
3 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 19 Mar 2019

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How to Hire a Great API Development Specialist

An API, or Application Programming Interface, is a set of tools that define how the software components should communicate and interact with each other. Besides, an API makes it possible for a developer to communicate with servers and get specific data by using requests and calls. But the most powerful feature of API’s is that they allow the developers to create apps which request data from multiple sources, such as Facebook or Google Maps. That is why qualified API development specialists would be a valuable addition to any software development project team. But how to define the level of professionalism when interviewing an API developer? Let’s find out which skills and knowledge you should look for.

Skills of a Great API Development Specialist

Please note that nowadays most companies prefer REST API’s over SOAP API’s due to their simplicity, so we will be using the skills of a REST API developer in our example skillset.

When preparing to interview an API programmer, keep in mind the following skills:

  •    Strong development experience in producing RESTful API’s.
  •    Fluency in programming languages (depending on your project), typically Java, C#/ASP.NET.
  •    Understanding of J2EE server-side technologies, such as JMS, JAX-WS, CXF, etc.
  •    Familiarity with design principles and best practices that should be applied during the REST API implementation.
  •    Understanding of the Developer Experience (DX) principles.
  •    Understanding of JSON and XML structured data formats.
  •    Experience with API documentation/design frameworks, such as Swagger/Open API. Ability to create self-documented API’s.
  •    Fluency in API modeling languages, such as YAML.
  •    Deep knowledge of API lifecycle management platforms.
  •    Proficiency in developing API’s for both internal and external use.
  •    Experience in securing API’s with token-based authorization by using Oauth, Open ID Connect, SAML, etc.
  •    Sound knowledge of integration tools, such as API Management, B2B Gateway, Enterprise Service Bus, etc.
  •    Experience with API testing and test automation.

The hiring and shortlisting process may be quite tedious, so we hope that the example skills outlined in this article will help. With this skillset in mind, it will be easier for you to interview API development specialists and select the candidate that is a perfect fit for your project.