Hire API developers remotely with guaranteed levels of seniority and hyper vetted quality

Find amazing API developers with TurnKey. Hire now and spin up your dream engineering team that is fully customized to your specific needs in 30 days or less.

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Trusted by the most innovative companies in the world

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Customers love TurnKey (and we love them back!)

3 Years in a Row Best in KLAS for Ambulatory Revenue Cycle Management (RCM) Services

"TurnKey is the only offshore firm we've interacted with that really places an emphasis on retention. They seem to be the only ones that understand how important retention is to maintaining strong product development cycles. Our churn rate with TurnKey has been under 5% annually whereas we were at more than 50% with our previous vendor!"

Anya from R1

Anya Alisova (US)

General Manager, R1
Discord Trusted Partner

We've hired 5 full-time software engineers through TurnKey. To date, not a single engineer has left our contract/arrangement. We worked with several U.S.-based recruitment firms, and none matched the speed and quality of candidates referred by TurnKey. Most impressive and unique about TurnKey is their willingness to reach for the perfect candidate. Our requirements are strict, and they did not compromise.

Kyle Dodson

Kyle Dodson (US)

Head of Engineering, Salad Technologies
2021 Brand Excellence Award for Brand Innovation by BCBSA

"It's been nearly two years of us working together and we have not had the need to replace a single developer. The programmers have all performed very well and TurnKey has been able to give us information that has helped to retain our key players."


Mackezie Drazan (US)

CEO of MiResource

We have hired 5 total developers including tech lead, full stack, dev ops and firmware. For each hire, a strong pipeline of candidates was provided, and the TurnKey team performed a lot of pre-screening such that those that entered the funnel were strong and relevant. They also helped with setting salary comp, and closing. Finally they continue to provide HR services as well as legal admin services associated with employment of a geographically diverse group of developers.

Fletcher Wilson

Fletcher Wilson (US)

80+M Downloads

We started with 8 hired developers and there have been no problems with any of the hires. We are currently monitoring them as we do all engineers but there is nothing to report that would make us consider this arrangement with TurnKey anything but successful. The transparent pricing up front as well as the genuine desire to continue improving with each hire we make is a big difference maker for us.

Chris Oh Chief of Staff and Technology Leader at Headspace

Chris Oh (US)

Chief of Staff, CTO
RESNET has been recognized by the U.S. Department of Energy and Environmental Protection

TurnKey provided high-quality talent at a cost-effective price. We employed TurnKey to manage the hiring/HR/Legal for >80% of our entire Product team - from identifying and hiring Team Leads, to agent level support roles. I also appreciated that they were proactive in suggesting certain criteria and requirements when first starting our search for key team lead members.


Ryan Rice (US)

Founder & CEO of ResNet AI Inc.
The Best E-Signature Software According to G2

We reviewed several similar companies and along with the cost the major deciding factor was the quality of experienced candidates TurnKey was presenting to us. The additional team members worked alongside our scrum teams delivering new feature functionality and enhancements to our platform.We're impressed with the quality of their candidates and the work ethic they demonstrate on a day-to-day basis in our agile ceremonies.


Sandy Speirs (US)

Director Of Engineering at Sertifi, Inc.

TurnKey is well versed in the startup ecosystem and really understands our needs when it comes to offshore dev, particularly how our needs may be different than the needs of a huge public company. I don’t have to explain as much to TurnKey as I have had to do with other offshore vendors—they seem to get it on the first take. But at the end of the day, all we really care about is quality, and TurnKey has delivered the goods on this front better than other firms we’ve worked with in the past.

Pat Williams

Pat Williams

CEO & Co-founder at iScribeHealth

Latest Hires

TurnKey only hires the Top 3% of talent across Eastern Europe and Latin America.

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Sandra T.

Middle Back-end developer

2 years experience

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Nicolas R.

Senior back-end/API developer

4 years experience

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John M.

Senior back-end developer

6 years experience

Why Choose TurnKey?

Just a few of the awesome things that make us different from all the rest...

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We custom recruit your API developers from scratch, ensuring a perfect fit for your needs and culture.

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You are in total control of the team, including when they work, how they work and what they work on.

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We are super transparent about all salaries and fees—you will always know exactly how much your developers are getting paid.

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We have operations throughout Eastern Europe and Latin America so you can pick the country that is the best match for you.

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We have a robust talent retention program that reduces churn by 5x compared to the industry average.

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We are based in Silicon Valley so you always have someone local to call at any time.


Our interests match yours, so you know we're always on your side. We're super open about all the money stuff, including salaries and fees. No surprise charges!

Developer Salary
Taxes & Benefits

  • Since we are agnostic to salary, we find you the very best developer at the very best market price.
  • 100% of all bonuses and equity grants (if any) goes to the developer.

Employer of Record Fee

  • % of salary, with limit.
  • This includes all legal, administrative, payroll, liabilities, computers and much more.

Custom Recruiting Fee

  • % of salary for the first 18 months; fees are spread out (instead of one lump sum) to transfer employment risk from you onto TurnKey.
  • This fee is removed after the team member has been onboard for 18 months.

Talent Management Fee

  • % of salary, with limit. This includes:
    • HR and retention management program
    • Quarterly executive strategy reviews
    • Competitive compensation reports

So, what are you waiting for? Let's get this party started!

Assemble your dream team in just a few easy steps!


Strategic assessment of your needs


Simple pricing and painless contracting


Custom recruiting of your team


Easy kickoff and onboarding


Start building a great product!


Ongoing talent retention program

When it comes to API, we’ve got you covered.

Here at TurnKey Labs, we provide staffing services of API Developers. We utilize our expertise and deep understanding of tech talents hiring.

Here’s a glimpse into a diverse range of API Development Services available to address various needs, ensuring seamless connectivity between applications and services.


🖥️ API Development

Core expertise in the field involves developing state-of-the-art RESTful APIs using popular technologies such as Node.js, Express.js, and Django. It's widely recognized that the foundation of any high-performing application is a robust API. As such, these APIs are designed with an emphasis on scalability, security, and performance. They are equipped to manage large volumes of requests, safeguard data from potential threats, and ensure swift responses. Leveraging such expert API development services can amplify the functionality, interoperability, and overall performance of applications.

🔌 API Integration

Developers in this field excel at integrating third-party APIs into existing systems. Be it payment gateways, social media platforms, or cloud services, they navigate the intricacies of API integration, guaranteeing fluid communication between different software components. Recognizing that each API comes with its distinct set of demands, the integration approach is customized to match these specifications. Such careful attention to detail culminates in seamless, error-free integrations, elevating the functionality and user experience of applications.

☄️ API Testing and Deployment

It's widely recognized that thorough testing is pivotal for the success of any API. This is why exhaustive testing is undertaken to ascertain the reliability, efficiency, and security of APIs. Automated testing tools and frameworks are employed to validate functionality, performance, and security. This rigorous testing procedure aids in early detection and rectification of bugs, guaranteeing APIs operate impeccably in real-world scenarios. Upon completion of testing, the deployment of APIs is managed, ensuring they are correctly configured and optimized for production environments.

📑 API Documentation and Maintenance

Good documentation is universally acknowledged as the cornerstone of API usability. Consequently, clear, detailed, and comprehensive API documentation is provided to assist developers in comprehending and effectively utilizing APIs. Such documentation encompasses instructions for API setup, in-depth descriptions of each endpoint, anticipated request and response structures, error messages, and more. Beyond crafting top-tier documentation, there are also provisions for continuous maintenance and support services. These services encompass regular updates, bug resolutions, performance enhancements, and more, ensuring APIs stay current and continue to adapt to ever-changing business requisites.

🔒 API Security

In today's digital landscape, security is paramount. API security is taken seriously, with the adoption of advanced security protocols such as OAuth and JWT to shield APIs from potential threats and vulnerabilities. These security measures are designed to safeguard data during transmission. There's a continuous vigilance and updating of security practices to remain abreast of emerging threats, ensuring a high level of protection for APIs.

We’ve got the staffing model that is just right for you.

Get a team that is custom-built exactly to your needs.

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Fully dedicated development teams

Ideal for companies building core development teams.

your team
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Seamless staff augmentation

Ideal for companies that need extra firepower on their existing dev teams.

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Innovation centers of excellence (R&D)

Ideal for companies looking to build out an R&D hub with more than 50 staff.

Location, Location, Location

TurnKey has operations in all the global hotspots of high performing development talent.


Enjoy all the amazing benefits of using TurnKey.

30 days

Time to your first custom hire (or less!)


Annual retention rate of our developers

Industry average = 60%


Average increase in product development velocity

Our clients are winning all types of awards with their top quality developers

  • G2 Awards

  • Zoom Finalist Marketplace Competition

  • KLAS 2023 Points of Light Award

  • Energy Visionary by California Energy Commission

  • TripleTree iAward

  • Capterra Best Value

  • GetApp Best Functionality & Features

  • SoftwareAdvice Most Recommended

Looking for more than just API developers?

When you are building out a development team, you often need multiple players who are skilled at different things. That’s why TurnKey is a perfect partner for your hiring needs across the development stack.


Key Questions – and Answers! – about API Developers


Why is API development necessary?

API (Application Programming Interface) development is a key aspect of modern software development. It's the process of creating a set of rules and protocols for building and interacting with software applications. APIs serve as a bridge between different software systems, enabling them to exchange data and functionalities with each other. They play an essential role in allowing disparate software systems to communicate and share data and services, thereby enabling more complex functionalities and integrations that would not be possible otherwise.

In today's interconnected digital world, APIs have become fundamental to building efficient, scalable, and integrated software solutions. They allow businesses to leverage the capabilities of other software applications, without having to understand the complexities of their internal workings.

For instance, many businesses use APIs to integrate third-party services, such as payment gateways, mapping services, or social media sharing, into their own applications. APIs also enable businesses to expose their services to other applications, opening up new avenues for collaboration and revenue generation.

Furthermore, APIs are crucial for enabling the development of cloud-based applications, mobile apps, and microservices architectures. They allow these types of applications to interact with backend services and with each other, providing the functionality that users see and interact with.

In essence, API development is necessary because it allows for the creation of software applications that are more powerful, versatile, and integrated. Without APIs, the digital experiences that we take for granted today – such as using a mobile app to order food from a local restaurant, or using a single sign-on to access multiple online services – would simply not be possible.

How to hire an API developer?

Hiring an API developer is a critical task that requires careful planning and execution. The first step in this process is to clearly define your project requirements. This involves identifying the specific tasks that the API developer will need to perform, the technologies they will need to use, and the level of experience they will need to have. Defining these requirements upfront will help you narrow down your search and focus on finding candidates who are a good fit for your project.


Once you've defined your project requirements, the next step is to post job ads on reputable job boards and platforms. These platforms could include general job boards like Indeed or LinkedIn, as well as more specialized tech-focused job boards like Stack Overflow Jobs. In your job ads, be sure to clearly outline the job responsibilities, the skills and experience required, and any other important details about the role or your company. Providing this information in your job ads will help attract candidates who are a good fit for the role and deter those who are not.


The next step is to screen the applications you receive. This involves reviewing the resumes, cover letters, and portfolios of the applicants to assess their skills, experience, and suitability for the role. During this stage, you'll want to look for evidence of relevant skills (such as proficiency in the necessary programming languages), relevant experience (such as previous experience developing APIs), and other indicators of a good fit (such as a demonstrated ability to work on projects similar to yours).


Once you've shortlisted a few promising candidates, you'll move on to the interview stage. This is your opportunity to get a deeper understanding of the candidates' skills, experience, and personality. You'll want to ask questions that test their technical knowledge, problem-solving abilities, and cultural fit. For example, you might ask them to explain how they would go about designing an API for a specific use case, or to describe a challenging problem they faced in a previous project and how they solved it.


After the interviews, you may want to conduct a technical assessment. This could involve a coding test, a pair programming exercise, or a take-home assignment. The goal of this assessment is to gauge the candidate's practical skills and their ability to apply their knowledge in a real-world context.


Finally, once you've assessed all the candidates, you can make a job offer to the one who best meets your needs. This offer should include details of the job role, salary, benefits, and other terms of employment.


However, if you want to skip all this hassle and immediately get  help to build a team of API developers that can integrate, and grow while they make a valuable contribution to your projects, partner with us and experience our unique tech staffing solutions as we live and breathe cultural integration. TurnKey is the accelerated way to unlock the full potential of API development, reap the benefits of a global workforce, and achieve long-term success.

What skills to look for when you hire top API engineers?

When hiring a top API engineer, there are several key skills and areas of knowledge you should look for. These skills are critical for designing, building, and maintaining effective APIs, and can significantly impact the success of your project.

Multiple programming languages

Firstly, a strong understanding of multiple programming languages is essential. Depending on the nature of your project, this could include languages like JavaScript, Python, Ruby, or Java. Each language has its strengths and is suited to different types of tasks, so the best language for your API will depend on your specific use case.

API design Experience

Secondly, experience with API design and architecture is crucial. Designing an API involves making decisions about how the API will behave, what data it will accept and return, and how it will handle errors. Good API design is user-friendly, consistent, and scalable, and can greatly improve the developer experience and the quality of your application.

Knowledge of HTTP/HTTPS protocol is another important skill. HTTP is the protocol used for sending and receiving data over the internet, and understanding how it works is fundamental to working with APIs. This includes understanding HTTP methods (like GET, POST, PUT, DELETE), status codes, and headers.

Understanding of data structures and databases is also important. APIs often involve storing and retrieving data, so understanding how to design efficient data structures and interact with databases is a valuable skill. This could involve working with SQL or NoSQL databases, and understanding concepts like indexing, normalization, and transactions.

Familiarity with API testing tools is another key area. Testing is a critical part of API development, and involves ensuring that the API behaves correctly, handles errors gracefully, and meets performance standards. There are many tools available for API testing, including Postman, SoapUI, and JMeter, and a good API engineer should be familiar with at least one of these.

Finally, a grasp of security practices is crucial. APIs often handle sensitive data, and ensuring this data is protected from threats is a key responsibility of an API engineer. This could involve implementing authentication and authorization protocols (like OAuth or JWT), validating and sanitizing input data, and setting up.

In addition to these technical skills, top API engineers should also possess strong problem-solving abilities and good communication skills. They should be able to understand complex requirements, design solutions that meet these requirements, and communicate their ideas effectively to other members of the team. These soft skills are just as important as technical skills for contributing to a successful project.
Hiring the best API engineers for your needs is exactly where TurnKey can really help. During our recruiting process, every candidate is put through a robust screening protocol. And since our recruiting process is based on years of best practice and scientific rigor, we always find a perfect match for your company’s needs.

We are well known for having the lowest churn rate of any tech staffing agency post-hire. Here’s a sneak peek of what our typical recruiting path looks like.

We take great pride in our ability to find and hire the-match developers for top startups across various industries. Our robust screening protocol, expert recruitment team, and perfect retention program are the key pillars of our success. Our success speaks for itself – recently, we hired 16 developers for Headspace, a leading mental health startup in the US. We were able to identify the perfect-match developers who had the right technical skills and fit well with the company culture. These developers have since become an integral part of the Headspace team, contributing significantly to the company’s growth and success.

What are the main interview questions to hire API developers?

When interviewing potential API developers, it's crucial to ask questions that not only assess their technical knowledge and skills but also give you insight into their problem-solving abilities, communication skills, and cultural fit. Here are some main questions you might ask:

  1. Can you explain the difference between SOAP and REST? This question can help you assess the candidate's understanding of two of the most common types of APIs. Their answer can give you insight into their technical knowledge, and their ability to explain complex concepts in a clear and understandable way.
  2. How do you handle versioning in APIs? Versioning is a critical aspect of API development, and how a developer handles it can significantly impact the usability and longevity of your APIs. A good answer to this question will demonstrate the candidate's understanding of the importance of versioning, and their ability to implement it effectively.
  3. How do you secure an API? API security is a crucial concern in today's digital landscape. This question can help you assess the candidate's awareness of security issues, and their ability to implement effective security measures. Their answer should cover topics like authentication, authorization, data validation, and error handling.
  4. Can you discuss a time when you had to troubleshoot an issue with an API? This question can give you insights into the candidate's problem-solving skills and their ability to handle challenges. A good answer will not only describe the problem and the solution but also the thought process and steps they took to arrive at the solution.
  5. How do you ensure that an API is easy to use and well-documented? Usability and documentation are key factors that can determine the success of an API. This question can help you understand the candidate's approach to designing user-friendly APIs, and their ability to create clear and comprehensive documentation.

Asking these questions can help you gauge whether a candidate has the technical competence, problem-solving skills, and communication abilities to be a successful API developer. It's also a good idea to tailor your questions to the specific requirements of your project, to ensure that the candidate has the necessary skills and experience.

What are the tools used by API developers?

API developers use a wide variety of tools to aid in different aspects of the development process. Here are some key ones:

  1. Programming Languages: Depending on the specific requirements of the API, developers might use a range of programming languages. JavaScript (Node.js), Python, Ruby, and Java are some of the most commonly used languages in API development.
  2. Frameworks: Frameworks provide a structured way to build APIs and often come with built-in tools and libraries that simplify the development process. Express.js (for Node.js), Django (for Python), and Rails (for Ruby) are popular choices for API development.
  3. API Testing Tools: Testing is a crucial part of API development, and there are many tools available to assist with this. Postman, SoapUI, and JMeter are widely used for testing API functionality, performance, and security.
  4. API Documentation Tools: Good documentation is key to making an API easy to understand and use. Tools like Swagger and Apigee can generate interactive documentation that makes it easy for other developers to learn how to use the API.
  5. Version Control Systems: Version control systems like Git allow developers to track changes to the codebase, collaborate efficiently with others, and revert back to previous versions of code if necessary.
  6. Deployment Tools: Once the API is ready to go live, deployment tools like Docker or Jenkins can help package the application and deploy it to a server.

These tools can significantly increase productivity, streamline the development process, and help maintain high-quality code.