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Top freelance JSON API developers available to hire

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Freelance JSON API Developer - Mihir Mehta
Freelance JSON API Developer5.0 (43 reviews)

Senior Full‑Stack Developer with over seven years’ experience designing, building and maintaining large‑scale web applications. Track record of delivering end‑to‑end solutions by partnering with stakeholders to translate business and user needs into reliable software. Committed to clean, maintainable code, performance tuning, security best practices, and automated CI/CD pipelines. Nearly two years of hands‑on AI experience, integrating machine learning models and automation to boost product intelligence. I’ve contributed as a developer at global leaders Adobe and Newgen, as well as at high‑growth startups MoveInSync and Zillious Solutions. Skills Advanced: Java, MySQL, PostgreSQL, Spring, Hibernate, Spring Boot, Maven/Gradle, Microservices, Multithreading & Concurrency Control, Web Services (SOAP & REST), RPC, Git, Google Cloud Platform (GCP), Database Modeling & Schema Design, SQL (Stored Procedures/Functions, Triggers), Docker, Kubernetes. Intermediate: TypeScript, Python, Angular, React, API Gateway, Service Discovery, Load Balancer, ELK Stack, Kafka, RabbitMQ, Redis Cache, RAG (Retrieval-Augmented Generation), AI Agents, LangGraph, Vector Databases, AI Workflows, Fine‑Tuning. Core Strengths: Scalable system design, back‑end architecture, data structures & algorithms. How I Can Help You – I’m here to tackle your toughest technical challenges with expertise and dedication. Special Offer – Enjoy your first session free! (Terms & Conditions apply — let’s discuss your needs during our requirement-gathering call.) Satisfaction Guaranteed – Not satisfied? Request an instant refund, no questions asked. For a comprehensive overview of additional technologies and frameworks tailored to your needs, please refer to the Expertise section of my profile.

Freelance JSON API Developer - RajhaRajesuwari S
Freelance JSON API Developer5.0 (2459 reviews)
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⏱ MY WORK HOURS : 7AM to 11 PM INDIAN STANDARD TIME . 16 HOURS A DAY :) I’m a senior full-stack developer with 19+ years of real-world experience delivering scalable web and mobile solutions across industries. I work end-to-end—from architecture and development to optimization, security, and deployment. 💻 Web Technologies PYTHON , CORE JAVA , ASP.NET PHP Ecosystem: WordPress, Magento, Shopify, OpenCart, Joomla, OsCommerce Frameworks: Laravel, CakePHP, CodeIgniter, Yii Frontend: JavaScript, Angular, React Backend: Node.js, Python (Flask, Django) 📱 Mobile & Cross-Platform React Native FlutterFlow API-driven mobile app backends 🤖 Advanced Skills AI & third-party API integrations Payment gateway integrations SEO, speed optimization & performance tuning Malware removal & security hardening VB Macros & automation solutions ⚡ Strengths: Fast delivery, clear communication, production-ready solutions 👥 Team Support: Backed by a 10-member team (2 designers + 8 developers) for large-scale and long-term projects I don’t just write code—I solve problems, mentor developers, and deliver results. If you need reliable guidance or hands-on execution across web, mobile, or AI-powered systems, I’m here to help. Faster delivery and 24/7 communication are my greatest plus.

Freelance JSON API Developer - Muhammad Ur Rehman
Freelance JSON API Developer

I’m a results-driven Software Engineer with 5+ years of experience developing high-quality, scalable solutions that drive business growth.

Freelance JSON API Developer - Mike Schinkel
Freelance JSON API Developer5.0 (33 reviews)

I am **US-based** and have **30+ years experience** during which I have been a software developer, a programming trainer, a marketer and an entrepreneur. My current focus is in **long term tutoring** students in **programming**, **CI/CD DevOps**, and/or how to use AI like **Claude Code** or Codex for programming. Specifically: 1. I specialize in **Go** and **Bash** programming 2. I love **API**s and can teach you how to call them with command line Bash tools 3. I can teach you how to write API **servers** in Go, and also how to call APIs in Go. 4. I have 25+ years in **SQL** and can teach SQLite, MySQL, or Postgres 5. I can teach you to configure **macOS** and **Linux** for programming 6. I can teach **CI/CD** with **GitHub Actions**, Jenkins, GitLab, or others 7. I can teach using **Docker** containers and/or how to build them 8. I can how to write **Kubernetes** controllers and operators in Go 9. I can teach you how to work with **Digital Ocean** or basics in **AWS**. I can also teach you many other things. While I don't use Windows daily, I have used it in the past and am familiar with PowerShell and Windows System for Linux so I can help with those if need be. ALSO, I am great at learning on the fly so if you are interested in me helping you learn something I have not listed I will consider giving a discount for topics that allow me to learn new things while teaching, especially related to AWS.

Freelance JSON API Developer - Olamiji Kareem
Freelance JSON API Developer5.0 (11 reviews)

A full-stack developer with extensive experience developing web applications. I have extensive knowledge in: * Programming languages * Frameworks * Databases * Algorithms * Version Control (Git,etc) * Designs, and best coding practices. If you're looking for an experienced software engineer with a passion for problem-solving and creating quality solutions, please get in touch. Cheers to the bugs solved, and to the ones we're about to solve.

Freelance JSON API Developer - Nihat KIZILTOPRAK
Freelance JSON API Developer

Senior Java Developer with over 17 years of experience building scalable enterprise applications, with strong focus on backend systems, REST APIs, and distributed architecture. Hands-on expertise in Java (up to 21), Sprng , Spring Boot, React ,Angular , TypeScript ,Oracle DB,PostgreSQL, and microservices. Proven track record in insurance and finance tech domains. Comfortable working in agile environments, and highly skilled in transforming business requirements into technical solutions.

Freelance JSON API Developer - Akinyemi Olalekan
Freelance JSON API Developer5.0 (432 reviews)

I love to solve issues and debug problems that might arise into smaller solutions that make it well clear and more meaningful for anyone. I have vast knowledge with over 6 years of experience in programming with different technologies

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Frequently asked questions

How long do JSON API projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance JSON API project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance JSON API request on Codementor, check out our article.

How much does it cost to hire a freelance JSON API developer?

We don’t charge anything when you post a freelance hiring request for JSON API developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor JSON API developers different?

We do a comprehensive technical and communications screen of all JSON API developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing JSON API developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your JSON API project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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