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Top freelance JSON API developers available to hire
Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.
⏱ 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.
I have a great passion for solving problems and can help people with various programming languages, databases, information systems, software related projects.
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.
Hi, I’m Kishore — a Full-Stack Developer & Certified Security Architect with 14+ years of experience building secure, scalable, and user-friendly software solutions.
I specialize in:
Web & Mobile Development: React, Angular, ASP.NET, C#, Java, Android
APIs & Databases: REST APIs, SQL Server, MySQL, MongoDB
Cloud & DevOps: Azure, AWS, CI/CD, Docker
Security: Applying industry-approved best practices to protect your data
I’ve delivered management systems, e-learning platforms, inventory solutions, and mobile games, ensuring smooth functionality and a great user experience. My focus is on clear communication, fast problem-solving, and writing clean, maintainable code.
Whether you need bug fixes, performance optimization, code review, or end-to-end development, I can help you get your project back on track and working flawlessly.
📩 Let’s connect and solve your challenges together!
I am a Senior Software Engineer and Solution Architect with over 21 years of hands-on experience in software development. I specialize in ***C#, .NET, SQL Server, Python automation, and AI Agents.*** I help teams and businesses build, fix, and optimize complex systems where ***performance, scalability, reliability, and intelligent automation*** are critical.
***What I Do Best***
***.NET & Backend Systems***
- ASP.NET Core APIs and enterprise backend systems
- Blazor Server & WebAssembly applications
- Clean Architecture and scalable system design
- Debugging and resolving production issues
***Python Development & AI Agents***
- Building intelligent AI agents and LangChain-style workflows
- Automation scripts for repetitive business processes
- Data processing and transformation pipelines
- API integrations and system automation
- Quick prototypes and proof-of-concept tools
***SQL Server & Data Engineering***
- Complex SQL query design and optimization
- Stored procedures, indexing, and performance tuning
- Large dataset handling and reporting systems
- Data import/export and ETL-style processes
***Architecture & Consulting***
- System design and architecture reviews
- Performance optimization strategies
- Legacy system refactoring
- Technical mentoring and debugging guidance
***Real-World Experience***
I have delivered solutions for:
- Enterprise business applications with complex workflows
- High-volume data processing and reporting systems
- API-driven integrations and microservices
- Python & .NET automation tools
- ***AI agents*** that significantly improve company workflows and operational efficiency
My focus is always on delivering clean, maintainable, production-ready code with clear explanations.
***Technologies I Work With***
***Core Stack***
- C#, .NET, ASP.NET Core
- Blazor Server & WebAssembly
- Python (automation, scripting, AI agents, LangChain)
- SQL Server (T-SQL, optimization, indexing)
***Supporting Tools***
- Entity Framework Core, ABP Framework
- REST APIs & Microservices
- Radzen / Telerik UI components
- OpenAI, Anthropic, LangChain
***Problems I Commonly Solve***
- Slow or inefficient SQL queries
- .NET backend performance issues
- Broken or unstable APIs
- AI agent development and intelligent automation
- Complex debugging and production problems
- Architecture design and legacy refactoring
***How I Work***
- Fast root-cause analysis and structured debugging
- Clean, maintainable code with step-by-step explanations
- Balance between quick fixes and long-term scalable solutions
***Availability***
Available for 1:1 sessions in:
- .NET / Blazor / SQL troubleshooting
- AI Agents & Python Automation
- System design and architecture reviews
- Long-term consulting or development support
5 ⭐️ Rated | 💯 Satisfaction Guaranteed
Hey 👋 There,
Thanks for visiting my profile, Your search for an Expert Front-End Software Engineer ends here.
I am passionate about Apple Technologies and JavaScript Development.
I have production-grade experience with,
- iOS Development
- Swift Development
- Objective-C Development
- iPadOS Development
- Apple Watch / watchOS Development
- macOS Development
- React Development
- React Native Development
- Flutter Development
I am here to help mentees with my technical expertise and long-term work assignments with potential customers.
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.
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.
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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STEP 3
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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.