Hire the best JSON Developers in Kolkata, IN
Check out JSON Developers in Kolkata, IN with the skills you need for your next job.
- $20 hourly
- 4.7/5
- (51 jobs)
Welcome to my Upwork profile! With 4 years of experience in the IT industry, I have honed my skills as an RPA developer and gained expertise in various technologies. I have worked with a range of tools such as flutter flow, MS Power Apps, SAP Appgyver, Google Dialogue Flow CX, Python, Power Automate, Firebase, and SharePoint. I specialize in developing innovative artificial intelligence solutions utilizing a variety of Large Language Models (LLMs) including LLaMA, OpenAI GPT models, Azure OpenAI, BERT, and Gemini. My expertise spans the full spectrum of AI solution development—from data preparation and fine-tuning models to prompt engineering and chatbot development. Key Competencies: AI Development: Skilled in building and deploying AI models, leveraging LLMs for bespoke solutions. Data Preparation & Fine-Tuning: Expertise in preparing datasets and fine-tuning models to enhance performance and accuracy. Prompt Engineering: Proficient in designing prompts that optimize model responses for conversational AI applications. Chatbot & API Development: Experienced in creating intelligent chatbots and developing robust APIs. Azure Technologies: Extensive knowledge of Azure Function App Services, Azure AI Services, Blob Storage, and Azure administration including app registrations. Cloud Solutions: Ability to integrate AI solutions within cloud environments for scalable and efficient performance. Software Development Skills: Proficient in Power Platform, Azure, Python, and Power BI. As an Engineer Graduate in Electrical Engineering, I possess a strong technical background and a deep understanding of software engineering principles. Currently, I am working with Nihilent Technologies as a Software Engineer, where I have developed a keen eye for detail and an ability to work effectively under pressure. I take pride in my expertise in Power Apps and Python and have leveraged this knowledge to deliver high-quality software solutions to my clients. Whether it's developing robust and scalable applications, automating processes, or providing consulting services, I am always committed to delivering the best possible results. I am excited to bring my skills and experience to Upwork, and I am eager to work with you on your next project. Let's collaborate and achieve great things together!
JSON
StripeChatGPTRobotic Process AutomationData ExtractionMicrosoft SharePointZapierMicrosoft Power AutomateChatbotOffice 365Microsoft PowerAppsChatbot DevelopmentJavaScript - $10 hourly
- 4.7/5
- (27 jobs)
💪 9+ Years of Experience as a WordPress Expert 🏆 Top-Rated Freelance WordPress Developer 🌐 Creative Elementor Specialist 🏅 Achieved 90+ WordPress PageSpeed Score ⚠️ Expert in Fixing Technical SEO & ON-Page SEO Errors 😊 Open to Long-Term Collaborations 🤝 Ready to Join Top Agencies as a WordPress Expert 🧠 Proactive Problem Solver 🎯 On-Time Delivery of High-Quality Work Whether you're looking for a stunning website, seamless integration of APIs, or tailored WordPress development, I'm here to bring your vision to life. Your success is my priority! My WordPress Expertise Includes: 🛠️ WordPress Development 🛒 WooCommerce Development ⚙️ Website Design & Development Essentials ☁️ WordPress Server Management ✨ WordPress Customization 🔎 WordPress SEO 📐 Pixel-Perfect Design Conversion 🛡️ Security & Troubleshooting 🚀 Speed Optimization (90+ PageSpeed Score) 🚚 Website Migration & Redesign 🙌 WordPress Website Management Design Conversion to Dynamic WordPress Websites: 🎯 Landing Page Design 💡 Figma to WordPress 🖼️ PSD to WordPress 🚀 Xd to WordPress ✏️ Sketch to WordPress
JSON
AJAXPSD to HTMLjQueryAPIEcommerce WebsiteWooCommerceWordPressCSSHTMLPHPJavaScriptLanding PageWeb DesignAdobe Photoshop - $99 hourly
- 0.0/5
- (0 jobs)
Professional Overview Dedicated Frontend Developer with expertise in creating responsive, user-focused web applications. Specialized in HTML, CSS, JavaScript, React, Angular, and WordPress development. I combine technical proficiency with a keen eye for UI design to deliver polished, high-performance websites and applications. My approach focuses on clean code, accessibility, and creating intuitive user experiences that drive engagement and conversions. Skills Frontend Technologies: HTML5, CSS3, JavaScript (ES6+), TypeScript Frontend Frameworks: React.js, Angular (v8-14) State Management: Redux, Context API, NgRx Styling Solutions: SASS/SCSS, Styled Components, Tailwind CSS, Bootstrap WordPress Development: Custom theme development, Plugin customization, WooCommerce, Elementor UI/UX Implementation: Responsive design, Cross-browser compatibility, Accessibility (WCAG) Version Control: Git, GitHub Performance Optimization: Webpack, Lazy loading, Code splitting Testing: Jest, React Testing Library, Cypress Work Experience Highlights Developed responsive e-commerce platforms with WordPress and WooCommerce, increasing mobile conversions by 35% Built dynamic single-page applications using React and Angular, improving load times by 40% Implemented modern UI designs with pixel-perfect precision using advanced CSS techniques Optimized website performance through code splitting and lazy loading, achieving 90+ PageSpeed scores Collaborated with design teams to translate mockups into functional, interactive interfaces Sample Projects E-commerce Platform Developed a responsive online store using WordPress and WooCommerce Implemented custom checkout flow and product filtering Integrated payment gateways and shipping APIs Optimized for mobile shopping experience SaaS Dashboard Built an interactive admin dashboard using React and Redux Created reusable component library for consistent UI Implemented data visualization with charts and graphs Ensured responsive design for all device sizes Corporate Website Redesign Migrated legacy website to modern WordPress architecture Developed custom theme with advanced animations and transitions Implemented SEO best practices and performance optimizations Created intuitive content management system for non-technical staff Client-Focused Approach Clear communication throughout the development process Detailed project planning with realistic timelines Regular progress updates and demos Comprehensive documentation and knowledge transfer Ongoing support and maintenance options Availability Available for both short-term projects and long-term collaborations. Can work with clients in various time zones with flexible hours to ensure smooth communication and project delivery.
JSON
Next.jsReactJSON APIJavaScriptTailwind CSSPostCSSSCSSCSS FrameworkCSS GridCSSCSS 3HTMLHTML5Computer Graphics - $30 hourly
- 4.9/5
- (117 jobs)
Dear Valued Clients, My name is Amitava. You can call me Amit. I have more than 15 years of experience in designing & developing a wide range of websites. I am well equipped with complex coding & high-end database-driven work. I am specialized in the following technologies: - PHP - MYSQL - HTML/HTML5 - CSS/CSS3 - PSD to HTML - Twitter Bootstrap - Javascript - Ajax - jQuery - JSON - XML - Smarty - CodeIgniter - CakePHP - Laravel - WordPress - WooCommerce - Magento - Geolocation - Google Maps API or any other API - API Integrations - SEO - WHM - Cpanel - Hosting - Chrome Extensions My work history reflects my work ethic. I work with sincerity and dedication on all my projects. I strongly believe in doing good quality work rather than more quantity of work. Please kindly review my past feedback and testimonials which further describe my value to your team, and will assure that your entire experience will be very positive throughout our collaboration. I am passionate about meeting and exceeding all client expectations, and project deadlines through any communications necessary to ensure the successful completion of a project. My objective is to provide a high level of quality service at affordable rates for businesses and individuals. My client's satisfaction is my top priority and I enjoy forming ongoing business relationships with those I work with.
JSON
SQLCustom PHPAPICodeIgniterMagentoAJAXCakePHPWordPressMySQLXMLjQueryPHPJavaScript - $15 hourly
- 5.0/5
- (2 jobs)
I am a senior iOS Developer having 14 years of experience in building Enterprise Applications. My experiences range from building iOS application for retail services industry. I like working on projects with a team that cares about creating beautiful and usable interfaces. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. I look forward to hearing from you! Following are the Tech Stacks I have been using. • Objective-C, Swift, SwiftUI, SQL, Python, Ruby • SQLite, CoreData, CouchDB, MongoDB • Web-Service Integration (REST, SOAP), XML Parsing, JSON Parsing, Protocol Buffer • SVN, Git • Mobile Framework Integration: paypal (Money transaction), iDoubs (SIP Framework), Micro Strategy, Adobe Analytics, Object Mapper, Firebase, Mixpanel, Azure Mobile, Alamo fire, Fabric, Rxswift, Combine. • Experience in app-store publishing process. • CI/CD implementation using Fastlane, XCode Bots. • Excellent knowledge of Software Development Life Cycle (Plan, Analyze, Design, Build, Test and Deploy). • Sonar, Checkmarx. • XCUnitTest, XCUITest, KIF, Nimble. • Cocoapod, Carthage, SPM • Shell script. • TDD • Accessibility • Tuist, Bazel
JSON
Apache SubversionXML Web ServicesUnit TestingSession Initiation ProtocolApple XcodeGitHubiOS DevelopmentSQLiteObjective-C - $30 hourly
- 3.5/5
- (13 jobs)
I am a salesforce certified developer/consultant/architect with ten years of experience. I have implemented multiple projects in Sales, Service, Marketing, Experience, Field Service Lightning & NPSP Cloud. My Skills are : 1. Configuration ( All possible types ) 2. Customization ( Advanced Apex - Batch, Queueable, Future, LWC, AURA, REST/SOAP Integration) I have hands-on experience in integrating the following third-party applications with Salesforce: 1. Docusign 2. Sharepoint 3. Outlook 4. Asana 5. Shopify ( Via Zapier ) 6. Quickbooks ( Via Zapier, Salesforce connector ) 7. Dropbox 8. Xero ( via Zapier & Integromat ) I have worked on Conga Composer, SDOC app, Apptus CLM. Certifications: 1. Salesforce Certified Administrator 2. Salesforce Certified Platform Developer I 3. Salesforce Certified Platform Developer II 4. Salesforce Certified App Builder 5. Salesforce Certified Sales Cloud Consultant 6. Salesforce Certified Service Cloud Consultant 7. Salesforce Certified Data & Architecture Management Designer 8. Salesforce Certified Sharing & Visibility Designer 9. Salesforce Certified Application Architect 10. Salesforce Certified Field Service Lightning consultant. Trailhead Profile: sdevelopment
JSON
Salesforce LightningSalesforce Sales CloudSalesforce CRMSalesforce Service CloudSalesforce App DevelopmentApexSalesforce Marketing CloudHTMLJavaScript - $20 hourly
- 4.7/5
- (9 jobs)
I am an accomplished India-based web developer with over seven years of professional experience in the field, specializing in Laravel and Node.js. Throughout my career, I have completed more than 450 projects by building dynamic, responsive, and strong websites. What are my expertise: Expertise in Laravel, Node.js, & MySQL: Deep knowledge of modern development frameworks and advanced skills in optimizing complex SQL queries for maximum efficiency and performance. Proven Track Record: Delivered projects in numerous niches, taking care of high performance and scalability. Customer Satisfaction: Committed to providing the best solution, Repeat Hires and Positive Feedback are common occurrences. Now, let me use my technical skills for your business to hit the right note online with precision and professionalism. Let's connect and get your project off the ground!
JSON
FlutterAndroidiOSPHPJavaScriptCodeIgniterAPIBootstrapjQueryLaravelHTMLSQLAJAXMySQL - $15 hourly
- 0.0/5
- (1 job)
Looking for a high-performing, scalable, and secure eCommerce solution? With 16+ years of expertise in Magento, Shopify, and WordPress, I specialize in crafting custom, conversion-driven online stores that deliver real business results. What I Can Do for You: 1. Custom theme & plugin/module development 2. API integration & payment gateway setup 3. Speed optimization & database performance tuning 4. Custom PHP development & third-party service integration 5. Shopify Liquid programming & advanced theme customization 6. Magento extensions & headless commerce implementation 7. WordPress development, WooCommerce optimization & security enhancements Why Choose Me? 1. Proven Track Record: Led a team of 10+ developers, successfully delivering 100+ projects. 2. Business-Oriented Solutions: I don’t just code—I help optimize your store for sales & performance. 3. Agile & Scalable Development: Ensuring long-term maintainability & seamless scalability. 4. Strong Communication & Collaboration: Regular updates via Upwork messages, video calls, and other tools. Availability & Work Commitment : Available 8-10 hours daily, 7 days a week, ensuring timely delivery with meticulous attention to detail. Providing exceptional support & fast turnarounds for all project requirements. Let’s discuss how to enhance your online store and bring your vision to life! Send a message to get started. Looking forward to collaborating!
JSON
Payment GatewayReactNode.jsjQueryAJAXCSSHTML5HTMLShopifyWordPressMagento 2APIMySQLPHP - $22 hourly
- 0.0/5
- (0 jobs)
Objective : Rich User Interface applications, integrating with various Databases and Client-Server applications in iPhone/iPad, iOS application development. Professional Summary: * 13+ Years experience on native iOS apps development and 2 years experience in Android Kotlin mobile apps development. * Hands-on experience in Objective C,Swift, Cocoa Touch, XCode 4.x to XCode14.x. * Worked exclusively on Autonomous drone security systems integrated with UDP/IP. Which is a hardware stack for high-speed communication over a LAN or a point-to-point connection. * Worked on Google Maps and MapBox Maps to build security systems to protect military installations, critical establishments, government buildings and sensitive areas from all drone classes. * Worked on multiple frameworks like AVFoundation.framework, CoreLocation.framework, & MapKit.framework. * Used Third-Party APIs such as Google Analytics API for tracking,Google Maps SDK, Mapbox
JSON
KotlinUIKitAndroid App DevelopmentFirebaseMapKitCore DatamacOSAndroid StudioMobile AppApp StoreCocoa TouchApple XcodeMacBookiOS - $10 hourly
- 0.0/5
- (0 jobs)
With over 8 years of hands-on experience as a full-stack developer, I bring a wealth of expertise across a diverse set of technologies, making me capable of tackling a wide array of projects: 🔹 WordPress & WooCommerce: My go-to platforms for building dynamic content management systems and e-commerce solutions. 🔹 Shopify App Development: Specialized in creating custom, high-performance apps that enhance Shopify stores. 🔹 Node.js & Laravel: Skilled in crafting robust back-end architectures that power scalable web applications. 🔹 React.js, Angular & CodeIgniter: Passionate about building seamless, dynamic front-end interfaces that deliver top-notch user experiences. 🔹 Front-End Expertise: Strong knowledge of core web technologies like HTML, CSS, and JavaScript, with deep experience in React.js and Angular. 🔹 Database Integration: Proficient in working with MySQL, MongoDB, SQLite, and other databases, ensuring smooth data flow and functionality. 🔹 Back-End Mastery: Whether it's Node.js, Laravel, Custom PHP, or Python, I can handle the back-end development with ease and precision.
JSON
PHPMobile AppWebsiteShopifyAPI DevelopmentReactMySQL ProgrammingHTML5WooCommerceWordPress - $12 hourly
- 5.0/5
- (2 jobs)
Innovative IT Professional with more than 24 years of experience and key strengths in technology design, development and implementation. A focused, self motivated member that takes pride in solving complex technology problems and developing user-friendly solutions. Technical Skills ------------------ ASP.Net (C#), ASP.Net MVC, ADO.Net Entity Framework, ASP, SQL Server, Core PHP, MySql, JSON, XML, Ajax, Javascript, Jquery ---------------- Map API : ----------- Google Map, OsOpenSpace, Leaflet Before taking any job I always try to clarify the exact requirement and based on that provide Quality Work with an affordable price may be it In either Web Development Or Software Development.
JSON
MySQL ProgrammingDatabaseCSS 3.NET FrameworkCSSBootstrapC#ASP.NETPHPAngularJSASP.NET MVCjQueryMicrosoft SQL Server - $10 hourly
- 0.0/5
- (0 jobs)
I'm a passionate Kotlin Jetpack Compose Android Developer with hands-on experience in building modern, scalable, and high-performance Android applications. I specialize in Jetpack Compose, MVVM architecture, REST API integration (Retrofit), Room Database, and Firebase to create seamless and efficient mobile experiences. My expertise includes crafting immersive UI/UX designs, implementing smooth animations, and optimizing app performance for a delightful user experience. I have developed apps ranging from weather tracking, crypto monitoring, attendance management, and barcode scanning to delivery partner dashboards. I am detail-oriented, committed to writing clean, maintainable code, and always eager to learn and implement the latest Android development trends. Whether you're a startup or an enterprise, I can help you build and enhance your Android application. Let’s collaborate to turn your vision into a fully functional and engaging Android app! Feel free to reach out to discuss your project.
JSON
JetPackXMLDesign-to-CodeREST APIRetrofitJavaMobile App ImprovementMobile App DevelopmentApp Feature DevelopmentAndroid SDKAndroid StudioKotlin - $12 hourly
- 0.0/5
- (0 jobs)
I am a undergrad, a parallel degree student pursuing BS in Data Science from IIT Madras and BTech in CSE from NSEC, Kolkata under MAKAUT. I am an avid tech-enthusiast interested mainly in the domains of AI, Machine Learning and Quantum Computing. I am an open-source contributor as well as a competitive coder. I also have keen interest in the fields of Astrophysics. I also do Graphic Designing both as a hobby and profession. I believe in being a part, supporting and contributing actively towards a diversity embracing professional workspace.
JSON
Microsoft Power BI Data VisualizationMicrosoft Power BITableauSQLMongoDBDjangoTailwind CSSCSSHTMLIPythonPython Scikit-LearnPython PillowPythonGraphic Design - $25 hourly
- 0.0/5
- (0 jobs)
DEDIGNER | DEVELOPER Pursuing Bachelor's in Computer Science at JIS University, actively learning full-stack development alongside studies. Focused on frontend development, web design, and intrigued by artificial intelligence. Passionate about innovation and committed to excelling in the tech industry.
JSON
SaaS DevelopmentNext.jsFigmaMongoDBExpressJSReduxReactREST APIJavaScriptNode.jsJSON APITailwind CSSCSSHTML - $15 hourly
- 0.0/5
- (0 jobs)
10 years of experience in working with ASP. NET, C#, Jquery, Javascript, MSSQL Server. Expertise in working CRM based application, using different types of Intergation. Worked on various web base application for various organization.
JSON
SQL ProgrammingASP.NET Web APIJavaScriptC#ASP.NETWeb ApplicationjQuery - $10 hourly
- 0.0/5
- (1 job)
I am a passionate application developer with expertise in web scraping and automation. My primary focus is on creating innovative solutions using Python, Selenium, and various web technologies. I enjoy tackling complex problems and translating them into efficient code. Skills and Expertise: Web Scraping: Proficient in using Python and Selenium to extract data from websites, automate interactions, and develop intelligent applications. Programming Languages: Expert in Python, C, and C++, with a strong foundation in data structures and algorithms. Project Development: Currently developing an app similar to RedBus for ticket purchases, along with an Instagram automation project named InstaTrackBot to enhance user interaction. Networking: Experienced in network scanning and monitoring using tools like Wireshark, with hands-on experience in managing Ethernet connections on Linux.
JSON
MongoDB Ops ManagerTranscription SoftwareAutomation FrameworkGUI DesignSQLPython ScriptWing Python IDE - $6 hourly
- 0.0/5
- (0 jobs)
I am a web developer with experience in frontend and backend technologies, specializing in building responsive and dynamic web applications. I have worked with HTML, CSS, JavaScript, React, Node.js, and databases like PostgreSQL. Passionate about clean code, performance optimization, and seamless user experiences, I enjoy working on both personal and collaborative projects. Currently exploring cloud technologies to enhance web deployment and scalability.
JSON
TypeScriptREST APIJavaScriptProblem SolvingMicrosoft AzureMySQLSQLNode.jsCSSHTMLReactC++Web DevelopmentWeb Application - $13 hourly
- 0.0/5
- (1 job)
Detail-oriented Operations Manager with over 10 years of experience in sales, customer service, and team management. Proven ability to drive business growth through strategic planning, performance optimization, and effective team coordination. Skilled in managing end-to-end sales processes, after-sales support, and customer service while leading teams to exceed targets. Experienced in managing diverse sales campaigns and delivering exceptional customer experiences. Strong communicator with a focus on leadership, problem-solving, and continuous improvement. Committed to achieving business objectives and fostering a positive work environment.
JSON
jQueryMySQLJavaMySQL ProgrammingLead GenerationSales CallSalesTelemarketingTelesalesCustomer ServiceCustomer CareCustomer Support Want to browse more freelancers?
Sign up
How hiring on Upwork works
1. Post a job
Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.
2. Talent comes to you
Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.
3. Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
4. Payment simplified
Receive invoices and make payments through Upwork. Only pay for work you authorize.
Trusted by
How do I hire a JSON Developer near Kolkata, on Upwork?
You can hire a JSON Developer near Kolkata, on Upwork in four simple steps:
- Create a job post tailored to your JSON Developer project scope. We’ll walk you through the process step by step.
- Browse top JSON Developer talent on Upwork and invite them to your project.
- Once the proposals start flowing in, create a shortlist of top JSON Developer profiles and interview.
- Hire the right JSON Developer for your project from Upwork, the world’s largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a JSON Developer?
Rates charged by JSON Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a JSON Developer near Kolkata, on Upwork?
As the world’s work marketplace, we connect highly-skilled freelance JSON Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream JSON Developer team you need to succeed.
Can I hire a JSON Developer near Kolkata, within 24 hours on Upwork?
Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive JSON Developer proposals within 24 hours of posting a job description.