486 API developers in 168 agencies found

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 Feb 2019
AS
Ruby on Rails developer with great experience in building complex APIs and integrations
I'm a Ruby on Rails developer with great experience in building complex APIs and integrations. Recently I've also built several chatbots and integrated applications with 3rd party systems.
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 20 Feb 2019
PHP/Laravel Developer with decent background in data science.
Experience in developing commercial web-based applications for E-commerce, CRM-systems, API-services. Hands-on coding using PHP, writing support services, tools, and scripts.
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
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Updated: 20 Feb 2019
YS
All rates are indicative, annual rate includes 25% discount
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Updated: 21 Feb 2019
AM
Solution Architect and CTO
I’ve been in the tech industry for 15+ years and take a bird’s eye view beyond hype to design solutions for complex projects. I’m a Ruby on Rails enthusiast and have a passion for API security. In fac...
All rates are indicative, annual rate includes 20% discount
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Updated: 20 Feb 2019
.Net Full Stack Developer
All rates are indicative, annual rate includes 3% discount
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Updated: 20 Feb 2019
C/C++ software developer
Full cycle product development: • Windows native (C++) applications (Win API, STL, boost) • Database design experience: SQLite, Firebird • Using object oriented methodology and system analysis, mu...
4 Projects completed
GMT+2 East Europe
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Updated: 19 Feb 2019
Full Stack Developer | AWS Certified
Development of Web applications for business and startups (e-commerce, CRMs, marketing tools, etc) is the area where I am intensively working. Special skills and knowledge that I have are in using of...
4 Projects completed
GMT West Europe
All rates are indicative, annual rate includes 10% discount
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Updated: 20 Feb 2019
NK
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 21 Feb 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.