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No hidden cost, Fully integrated services, Timezone-aligned, Hire within a week

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Role API Developer
Current Demand High
Smart Working rate From $21/hour €19/hour £16/hour
Average matching time 7 Days

Vetted Profiles

Meet Our Vetted API Developer

No hidden costs, timezone aligned and able to hire in one week.

Author
Aarav P. Senior API Developer
Experience 1

Experience

10 years

Technologies

  • Rest Api Technology 1
  • Aws Technology 1
  • Django Technology 1

Coding Ability

9

0 10

Problem Solving

8

0 10

Communication Skills

9

0 10

$26/hour €24/hour £20/hour

Author
Sophie D. API Solutions Architect
Experience 1

Experience

8 years

Technologies

  • Rest Api Technology 1
  • AWS Technology 1
  • Node JS Technology 1

Coding Ability

8

0 10

Problem Solving

8.8

0 10

Communication Skills

9.6

0 10

$23/hour €22/hour £18/hour

Author
Rajesh K. Lead API Developer
Experience 1

Experience

6 years

Technologies

  • Rest Api Technology 1
  • AWS Technology 1
  • Docker Technology 1

Coding Ability

8.8

0 10

Problem Solving

8.9

0 10

Communication Skills

9.9

0 10

$21/hour €19/hour £16/hour

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

Author
Experience 1

Experience

Technologies

Coding Ability

0 10

Problem Solving

0 10

Communication Skills

0 10

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Top 1%

How We Find Top 1% API Developers For You

Hire API developers from as low as $21/hour €19/hour £16/hour

Step 1

Outline your Tech Requirements

  • We’ll match you with the best engineers in our network.
  • Each candidate undergoes AI vetting, interviews, and technical tests.

Step 2

Interview all the Candidates

  • We will present the best engineers to you at no cost.
  • Each candidate is selected based on your required skills.
  • You will then interview and assess.

Step 3

Efficient Onboarding

  • Once you’ve selected a developer, we will onboard and set them up with your team.
  • We take care of HR, payroll, pension, and all employment costs.

Benefits

Benefits of Hiring API Developer from Smart Working

Hiring with Smart working

Job posting and advertising.

CV and application collection.

Initial screening and shortlisting

Interviews and assessments.

Job offer and onboarding.

96% Retention Rate

Smart Working
Why Choose Smart Working
for Your Next Hiring

No Hidden Costs

We take care of all employment costs and provide long-term support.

Flexibility

No minimum length of contract

No Charge

We do not charge a search or placement fee

Cost Saving

40-50% annual saving from hiring locally.

$21/hour €19/hour £16/hour

Per Developer, Per hour

Excellent

Clients

Trusted by 150+ of Organizations
Blogs

Our Blogs

FAQ's

Common Questions and their Answers

Didn't Answer your Question?

We customise our search based on your unique requirements. Whether you need specific qualifications, levels of seniority, or particular industry experience, our team sources and vets candidates to find the top 1% of talent. Within seven days, we can connect you with highly qualified API developers aligned with your criteria.

Yes, we offer complete flexibility in hiring models. You can hire dedicated API developers for both short-term projects or long-term commitments. There’s no minimum or maximum timeline, allowing you the freedom to build your team according to your business needs.

Hiring offshore API developers can reduce your costs by approximately 40% compared to local hiring. Additionally, we manage the full hiring process, from finding and onboarding talent to handling time tracking, contracts, payroll, and other administrative responsibilities. You’ll also receive support from a dedicated Customer Success Manager, who can quickly address any concerns. If you’re not satisfied with a developer’s performance, we’ll provide a free replacement within a week so you can stay focused on growing your business.

We assign you a dedicated Customer Success Manager who will connect regularly based on your convenience. Your hired API developers work within your preferred time zones, and we provide time-tracking reports whenever you need them, ensuring you are billed accurately for worked hours. Additionally, our team is available 24/7 for any questions, ensuring you have continuous support.

Our API developers integrate seamlessly with your team and follow all of your organisation’s security protocols. Beyond that, our IT team enforces mandatory security policies to safeguard your data. If you have specific security requirements, we are more than happy to accommodate those as well to ensure your data remains secure.

When you hire dedicated API developers from us, they work and report directly to you, integrating smoothly into your established communication channels. They follow your project’s specific timelines, processes, and protocols, providing you with real-time project updates. This approach ensures that our developers function just like your in-house team members, keeping all communications and updates aligned with your expectations.

Yes, we offer 100% flexibility to scale your API development team up or down based on your current needs without any hidden fees. You can adjust your team size whenever required, with no minimum or maximum hiring restrictions.

Absolutely. We provide fully time zone-aligned talent, enabling you to have developers working precisely when you need them. Additionally, if your project requires 24-hour development cycles, our team can create a hiring strategy that covers all time zones necessary to ensure continuous progress.

In the unlikely event that a developer doesn’t meet your expectations, we offer a free replacement within a week. Simply discuss your concerns with your dedicated Customer Success Manager, and they’ll arrange a seamless replacement without disrupting your project’s timeline.

Start by connecting with our team and sharing your requirements. Once we have the details, we’ll vet 300 to 500 candidates to present you with the top 1% for final selection. You can interview shortlisted candidates to ensure the best fit, and our team will manage all administrative and legal processes, onboarding the selected developers on your preferred start date.

Ready to Hire a API Developer?
We can conduct API Developers search at No Cost

Guide

Hire Offshore
API Developer
Top 15 Technical Questions to Ask When Interviewing API Developers

When you’re ready to hire dedicated API developers for your business, you must know how to evaluate candidates effectively. Hiring the right API developer ensures seamless integration, enhanced functionality, and reliable security for your business systems. This guide walks you through fifteen top technical questions you can ask during the interview process to identify skilled API developers for hire, whether you’re looking to hire offshore API developers, hire remote API developers, or bring someone in-house.


With this guide, you’ll feel confident knowing you’re asking the questions that matter most when choosing the right person to fulfil your business needs.

Show more

Why It’s Crucial to Hire Skilled API Developers

API developers are the backbone of connecting systems and services, so hiring skilled API developers ensures smooth operations and reliability. The need for these skills is why so many businesses actively seek to hire API developers who can build and maintain high-quality, secure, and scalable APIs.

Choosing to hire dedicated API developers can be a game-changer for your business. When you hire remote API developers or opt to hire offshore API developers, you’re often looking for specialised skills while also managing budget and time constraints. Technical interviews are crucial in assessing the candidate’s knowledge, experience, and problem-solving abilities, giving you the confidence you need when making the final hiring decision.

Key Skills to Look for in API Developers

Before you dive into the interview questions, it helps to know the core skills of a capable API developer. Here are some of the top skills to look for when you’re searching to hire dedicated API developers


  • Proficiency in RESTful and SOAP APIs: These are foundational to API development, and a strong candidate should understand both types and their use cases.
  • Experience with API Authentication and Security: Look for familiarity with OAuth, JWTs, API keys, and other security methods to safeguard your data and users.
  • Backend Technologies Knowledge: Candidates should be comfortable with server-side programming languages like Python, Java, Node.js and frameworks like Django or Express.
  • Documentation and Testing: Solid documentation practices and experience with testing frameworks (Postman, Swagger) indicate a developer who values code quality and transparency.

When you know what skills to prioritise, you’re better positioned to hire API developers who can meet the demands of your projects.

Top 15 Technical Questions to Ask When Interviewing API Developers

These questions will help you evaluate potential hires' technical expertise and problem-solving abilities. Whether you’re looking to hire remote API developers or offshore API developers, these questions focus on assessing their core competencies and real-world experience.


  1. What experience do you have with RESTful and SOAP APIs?
    • This question checks their understanding of industry-standard protocols and the pros and cons of each type.
  2. How do you handle API authentication and security?
    • Security is critical for API development; a good answer here should mention OAuth, JWTs, or API keys.
  3. Can you describe a time when you optimised an API for better performance?
    • Look for specific techniques such as caching, optimising payloads, or reducing response times.
  4. How do you approach versioning in APIs?
    • API versioning ensures backward compatibility, which is crucial for maintaining system integrity.
  5. What strategies do you use for handling API errors?
    • Error handling strategies like proper HTTP status codes and detailed error messages show the developer’s attention to detail.
  6. Can you explain rate limiting and when to use it?
    • Rate limiting prevents server overload; a good candidate should understand this in depth.
  7. Have you worked with GraphQL, and what’s your experience with it?
    • This is optional but shows versatility and willingness to adapt to newer API technologies.
  8. What are your preferred testing tools for APIs, and why?
    • Familiarity with tools like Postman, Swagger, or JMeter reflects a commitment to quality and thoroughness.
  9. How do you document your APIs?
    • Effective documentation makes working with the API easy for other developers.
  10. Can you discuss an instance when you handled API scaling?
    • This question explores their understanding of scalability and infrastructure.
  11. What’s your process for integrating APIs with third-party services?
    • This reveals their approach to connecting external services, a common task in API development.
  12. How would you secure APIs against common threats like SQL injection or cross-site scripting?
    • A strong answer here will show knowledge of cybersecurity fundamentals and prevention methods.
  13. Can you walk me through a complex API integration you’ve handled?
    • This question provides insight into their experience level and problem-solving abilities.
  14. How do you manage data serialisation and deserialisation?
    • This is essential for data integrity and smooth client-server communication.
  15. What are the key performance metrics you monitor in an API?
    • Knowing what to track, such as latency, error rates, or request volumes, is essential for maintaining quality.

Checklist of 15 Questions for Interviewing API Developers

No. Interview Question Check ✔
1 What experience do you have with RESTful and SOAP APIs?
2 How do you handle API authentication and security?
3 Describe a time you optimised an API for better performance.
4 How do you approach API versioning?
5 What strategies do you use for error handling?
6 Can you explain rate limiting and its importance?
7 Have you worked with GraphQL? What’s your experience?
8 What are your preferred testing tools for APIs?
9 How do you document your APIs?
10 Describe a time you scaled an API to handle increased traffic.
11 What’s your approach to integrating third-party services via API?
12 How would you secure APIs against threats like SQL injection?
13 Can you share a complex API integration you’ve handled?
14 How do you manage data serialisation and deserialisation?
15 What API performance metrics do you monitor?

Tips for Making the Right Hiring Decision

When you’re ready to hire Developer , remember that technical skills are essential, but so is the candidate’s ability to communicate and solve problems. Be sure to


  • Look for a balance between technical know-how and communication skills.
  • Listen for specific examples in their answers to validate real-world experience.
  • Consider using coding tests or mini-projects to assess their practical abilities.

These strategies can help you hire API developers who align with your business needs and can contribute meaningfully to your team.

Where to Find Skilled API Developers for Hire

For many companies, hiring from a reliable offshore hiring services provider is one of the most efficient ways to hire API developers. Whether you need to hire remote API developers or hire dedicated API developers, working with a reputable offshore service can bring numerous benefits, including


  • Cost-Effectiveness: Offshore providers often have competitive pricing, making it affordable to hire skilled API developers without sacrificing quality.
  • Access to a Larger Talent Pool: By hiring offshore API developers, you gain access to skilled professionals globally, allowing you to find the best fit for your needs.
  • Flexible Hiring Models: Offshore providers offer various hiring models. Whether you need a full-time developer, part-time support, or a project-based role, they can accommodate you.
  • Reduced Hiring Overheads: Instead of handling the recruiting process, offshore providers streamline hiring, saving you valuable time and resources.
  • Ongoing Support and Scalability: Offshore providers can easily scale teams up or down based on project needs, ensuring flexibility and quick adaptation.

Choosing a reliable offshore hiring service lets you confidently hire API developers who meet your needs without the hassle of traditional recruiting. It’s an intelligent solution that aligns with the demands of today’s fast-paced, tech-driven landscape.

Conclusion

Hiring skilled API developers is a critical decision that impacts your business’s efficiency and security. This guide provides you with the top technical questions and insights to make informed choices. Whether you hire offshore API developers or remote API developers, these questions and tips will help you identify the right talent to support your projects and goals. Our Node.js Developers hiring services offer additional options for companies needing specialised expertise to expand their development capabilities with top-tier talent. Explore our other hiring options to support further and scale your projects seamlessly.

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