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Web API Programmers en ligne
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Surat, India
$25 USD par heure
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BANGKOK, Thailand
$130 USD par heure
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Jaipur, India
$4 USD par heure
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Surat, India
$15 USD par heure
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Karachi, Pakistan
$20 USD par heure
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Kolkata, India
$15 USD par heure
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karachi, Pakistan
$50 USD par heure
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New Delhi, India
$50 USD par heure
10,0
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SURAT, India
$15 USD par heure
A Web API programmer builds and maintains the server-side endpoints that let applications, websites, and third-party services exchange data over HTTP. Hiring a skilled Web API developer means getting clean, documented, secure interfaces that power mobile apps, single-page applications, microservices, and integrations across your tech stack.
A freelance Web API programmer designs and ships the connective tissue between systems. Whether you need a REST API for a new mobile app, a GraphQL layer for a React front end, or middleware that brokers data between a CRM and an e-commerce store, this is the specialist who writes the code, defines the contracts, and ships the documentation.
Typical deliverables include endpoint specifications, authentication flows, request and response schemas, rate limiting, error handling, and the deployed API itself. A strong Web API developer also produces OpenAPI or Swagger documentation, Postman collections for testing, and unit and integration test suites that protect the API as it evolves.
The Web API ecosystem is broad, and the right stack depends on your project. A capable API programmer should be fluent in HTTP fundamentals, JSON, and at least one major backend framework.
Web API development underpins almost every modern software product. SaaS companies hire API programmers to expose product features to customers and partners. E-commerce businesses need APIs to sync inventory, process payments, and connect storefronts to ERPs. Fintech, healthtech, logistics, real estate, and travel platforms all rely on well-built APIs to move data between mobile apps, web clients, and back-office systems. Startups commonly hire an API specialist to bootstrap an MVP, while established companies bring one on to refactor monoliths into microservices or to build public developer platforms.
Look for engineers who can show shipped APIs in production, not just tutorials. Strong portfolio markers include public documentation they have authored, GitHub repositories with clean commit history, and experience with the specific stack your project will use. Ask for evidence of versioning strategies, error-handling conventions, and security practices.
Useful interview questions you can copy and use:
Freelancer.com gives you access to a global community of backend engineers and API specialists across every major language and framework. You can compare profiles, portfolios, and verified reviews before you commit. Whether you need a quick integration with a third-party service or a long-term engineer to architect a microservices platform, you can hire on Freelancer.com with confidence. Clients set their own budgets and receive competitive bids from freelancers on Freelancer.com, which keeps pricing flexible across project sizes and complexity levels.
Ready to ship clean, well-documented endpoints for your next product?
Hiring an API developer works best when you treat the brief as a technical specification rather than a vague request. The clearer you are about endpoints, authentication, integrations, and the consuming clients, the better the bids you will receive. The process below walks through posting, reviewing, and awarding the project.
Your project post is the single biggest determinant of bid quality. A precise brief filters for candidates whose stack and experience genuinely match the work, so name the language, framework, integrations, and deliverables explicitly. Head to the
Bids are short proposals that reveal how each freelancer interprets your brief and what approach they would take. Read them carefully rather than sorting only by price. A strong API proposal references the specific framework, calls out architectural decisions, and raises sensible clarifying questions about authentication, data models, or rate limits.
The final decision combines proposal quality with profile evidence. For API work, you want consistency across multiple past projects — one polished demo is less reassuring than a track record of shipped, documented APIs with happy clients. Weigh portfolio depth, written reviews, and verified credentials together.
A simple CRUD API with a handful of endpoints can be built in one to two weeks, while a production-grade API with authentication, third-party integrations, documentation, and tests typically takes four to eight weeks. Larger microservices architectures or public developer platforms can run several months. The brief, scope, and required integrations are the biggest drivers of timeline.
The roles overlap heavily. A backend developer handles the full server-side stack including databases, business logic, and APIs, while a Web API programmer specialises specifically in the design, implementation, and documentation of HTTP-based interfaces. If your project is primarily about exposing data and functionality to other apps or services, an API specialist is the focused hire.
REST is the standard choice for most public APIs, simpler integrations, and CRUD-style resources. GraphQL is stronger when clients need flexible queries across related data, such as feeding a complex front end from a single endpoint. A good API programmer will recommend the right approach based on your client requirements and team experience.
Yes. Many clients post a project on Freelancer.com for a single integration, such as connecting their app to Stripe, syncing data with a CRM, or building a webhook handler. These engagements are well-suited to fixed-scope contracts with clear acceptance criteria.
A skilled freelancer is usually the right fit for focused API builds, integrations, and ongoing maintenance because you get direct access to the engineer writing the code. Agencies make more sense when you need parallel teams across mobile, frontend, and backend at once. Most API projects benefit from the cost efficiency and communication of a freelance hire.
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