Hire the Top 3% of API Developers in 48 Hours

Hire API developers, engineers, and programmers on demand. Top companies and startups choose API developers from Toptal for RESTful services, GraphQL, third-party integrations, API security, and more.

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Featured Talent

Erez Nassimi, Accomplished API Freelancer.

Erez Nassimi

Verified Expert in Engineering
31 Years of Experience

API Developer

Erez has 30 years of experience in software development and 15 years in team building and management. His expertise covers multiple languages (C++, C#, Pascal, SQL), frameworks (.NET), paradigms (OOP, REST), platforms (Windows), protocols (Diameter, FIX), including API development, design patterns, web scraping, and clean coding. Familiar with stock options, currency exchanges, and trading/algo-trading, he has won innovation awards at Amdocs, contributing to CodeProject and StackOverflow.

APIWindows DevelopmentC++C#.NETSQLVisual Studio DevelopmentWeb ScrapingREST APIWeb DevelopmentData ScrapingCGit
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Satish Babu Dakudora, Freelance API Programmer for Hire.

Satish Babu Dakudora

Verified Expert in Engineering
12 Years of Experience

API Developer

Satish is an adaptable and technically strong professional with a customer business value-add mindset and several years of experience in quality assurance for companies like Deloitte and Consensys. While Satish specializes in Selenium, Cypress, and API testing, he's also comfortable building automation test frameworks and recently led the technical portfolio for an automation project.

APISeleniumJenkinsAgile DevelopmentJavaQuality Assurance EngineeringGitJiraWindows DevelopmentPostmanMicrosoft Teams DevelopmentQA AnalysisTest Automation
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Claudio Nazzari, API Freelancer.

Claudio Nazzari

Verified Expert in Engineering
18 Years of Experience

API Developer

Claudio has over 20 years of software development experience and a cybersecurity degree. He has handled back-end, front-end, and full-stack development, DevSecOps, application security, penetration testing, and solutions architecture. With his combined expertise, Claudio focuses on helping companies by developing and architecting secure and resilient web and mobile applications.

APIJavaJavaScriptMicroservices DevelopmentFront EndBack-end DevelopersNode.jsVue.jsAngularGitTypeScriptPostgreSQLDatabase
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Anne Adams, Accomplished API Freelancer.

Anne Adams

Verified Expert in Engineering
19 Years of Experience

API Developer

Anne is an experienced developer who has worked both for large corporations and startups. After building financial trading applications for eight years as an engineer at Merrill Lynch, Anne founded and built LoudUp, a music-based social network that she designed, developed, and launched from the ground up. She specializes in .NET technologies and JavaScript.

APIFacebook APISQLC#XamarinAJAXJSONjQueryWindows DevelopmentVisual Studio DevelopmentWeb Development
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Sreeram Kartheek Vennapusa, API Engineer.

Sreeram Kartheek Vennapusa

Verified Expert in Engineering
13 Years of Experience

API Developer

Sreeram is an automation lead with 12 years of experience designing, developing, testing, and maintaining eCommerce, CRM, and web apps. He has a solid background in working in fast-paced environments, understanding business requirements, and automating accordingly. Sreeram analyzed Software Architecture Documents (SAD) and use case documents and developed test strategy documents. He has hands-on knowledge of continuous integration tools like Jenkins, Git, AWS, and Docker.

APIMacOSLinuxJavaDatabaseWindows DevelopmentTest AutomationQuality Assurance EngineeringJavaScriptSeleniumAgile DevelopmentCucumberQA Analysis
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Gaurav Garg, Senior API Programmer and Consultant.

Gaurav Garg

Verified Expert in Engineering
9 Years of Experience

API Developer

Gaurav is a 9x Salesforce certified professionl with over 10 years of experience within Salesforce and project delivery. He's proficient in Lightning Web Component (LWC) and Salesforce Lightning and Classic. Being proficient in code design patterns for scenarios and process-based structures, Gaurav designed schema structures to handle eCommerce, manufacturing, and insurance industry processes. He led an API structure model deisgn that brought low maintenance and scalability to a project.

APIData MigrationSalesforce DevelopmentVisualforceApexREST APIIntegrationSalesforce Administration
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Pankaj Batra, Freelance API Engineer.

Pankaj Batra

Verified Expert in Engineering
23 Years of Experience

API Developer

Pankaj is a hands-on professional and entrepreneur with 20+ years of experience in product development, planning, architecture and design, team building, and business leadership. He has led teams in the business-growth phase across enterprise software, advertising, B2B SaaS, education, personal finance, food tech, and logistics. Pankaj's specialties include database design, API development, product management, and back-end development in Ruby on Rails, Java, SQL, and AWS.

APIWeb ScrapingJavaScriptAutomationBack-end DevelopersREST APIDevOpsJavaDedicated Ruby on Rails DevelopmentMySQLStartup DevelopmentRubyAWS
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Marco Sanabria, Toptal API Developer.

Marco Sanabria

Verified Expert in Engineering
14 Years of Experience

API Developer

Marco is a passionate SDET who always looks for solutions that automate manual processes in the development lifecycle. With over a decade of experience, he has worked on several projects, performing as a QA automation engineer, tech lead, and coach. Marco has conducted testing in several layers of modern web applications, including UI, API, and performance. He has also led teams developing QA strategies from the ground up.

APIJavaScriptQA AnalysisQuality Assurance EngineeringSeleniumGitPostmanTest AutomationFront End
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Dmitry Pavlov, API Freelancer.

Dmitry Pavlov

Verified Expert in Engineering
25 Years of Experience

API Developer

Dmitry is a top-notch developer with 20+ years of experience creating .NET web applications. These days, he mainly deals with ASP.NET Core and Blazor (C# and .NET Core) software development and architecture design. Known to clients as "the coding machine," Dmitry is a 9-time recipient of the Microsoft MVP Award for developer technologies and is a capable community leader. He has a Master of Science degree in computer science and a PhD in geology.

APISoftware ArchitectureAzureMicrosoft DevelopmentC#JavaScript.NETTwilio DevelopmentjQueryXSLTXMLVisual Studio DevelopmentAgile Development
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Hemant Talele, Toptal API Developer.

Hemant Talele

Verified Expert in Engineering
23 Years of Experience

API Developer

Hemant is a seasoned MuleSoft architect/SME and senior developer with 17+ years of software project experience and specialization in the MuleSoft Anypoint platform. He has extensive work experience working with international (US, Canada, and UK) clients on software projects. Hemant is a self-starter who is able to work independently or in a team with limited supervision and great efficiency. He has worked with many clients to formulate solutions customized to their needs.

API
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Julien Loutre, Freelance API Developer for Hire.

Julien Loutre

Verified Expert in Engineering
14 Years of Experience

API Developer

Julien is a professional software engineer with 15+ years of experience. A former team leader and user operations analyst at Facebook as well as a former project manager, he is also the co-founder and CTO of a trivia company with 280+ thousand players and $1+ million in annual revenue. Julien specializes in scalable AWS Node.js microservices but also has years of experience as a full-stack engineer with 7+ years of experience with AngularJS.

APIJavaScriptNode.jsExpress.jsMongoDBAngularJSPHPjQueryMicroservices DevelopmentFirebaseLAMPWeb DevelopmentGolang
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Discover More API Developers in the Toptal Network
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1

Share your needs

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2

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Get a shortlist of expertly matched API developers within 24 hours to review, interview, and choose from.
3

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Get up to two weeks to work with and assess your chosen developer and pay only if you decide to hire them.
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Trusted Experts Only

All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

Your New Team Member

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Choose the engagement type that suits your needs – hourly, part-time, or full-time – with the ability to change anytime.

Expert Talent Matcher

Expert Talent Matcher

Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Our Developer Screening Process

26.4%Pass Rate

Excellent technical communication

Toptal developers must possess strong written and verbal communication skills. They work effectively across multiple collaboration tools and convey complex engineering ideas and concepts with ease.

7.4%Pass Rate

Core skills and algorithms

Each developer is required to demonstrate their computer science fundamentals, problem-solving ability, and technical aptitude to a panel of leading experts.

3.6%Pass Rate

Proactive problem-solving

Toptal developers are skilled at tackling roadblocks creatively and independently. Each candidate is live-screened by two top developers where they have to offer multiple paths to the solution and make decisions on the spot.

3.2%Pass Rate

End-to-End project execution

Our developers deliver a test project to completion, demonstrating their skills across ideating, scoping, implementation, and problem-solving.

3%Pass Rate

Continued excellence

Toptal developers are expected to maintain a perfect track record while working with clients. We assess our talent after every engagement to ensure our standards for excellence were met.

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We have a 98% trial-to-hire success rate.

Up to two weeks to try talent and evaluate if they’re the right fit

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Why Organizations Choose Toptal®

Toptal gave us access to the best designers out there, saving us a lot of time and allowing us to build the best possible product.

Thierry JakircevicGeneral Manager, Digital Solutions, Bridgestone

Toptal’s talent is really excellent. They are able to work through large business problems and code incredibly efficiently.

Emily LemonSenior Director, Cleveland Cavaliers

The kind of people we looked for were hard to find. Toptal helped us achieve our goals by bringing high quality resources to bear on very short notice.

Elmar PlatzerDigital Transformation Leader, CSR

If you’ve tried working with other vendors, Toptal is going to be a different type of company to work with; they’re going to meet you where your needs are.

Matthew SchumacherSenior Product Manager, Alpha - Precision Drilling

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