JSON stands for JavaScript Object Notation and it is a data-interchange format that is used for storing and exchanging information. It is more lightweight than the traditional XML format and is even used to send data across the internet from a web server. JSON developers are experts in understanding the syntax of this technology, but also in designing and coding up solutions for a wide range of problems for clients. JSON developers have an essential role in developing a variety of applications such as databases, websites and server-side applications.

Here's some projects that our expert JSON Developers made real:

  • Troubleshooting and creating scripts to transfer data through JSON into webpages
  • Developing modules to integrate dynamic solutions with transport APIs
  • Writing scripts using PHP, Java or Python to store, read and update databases
  • Building search result interfaces or flight search results
  • Connecting websites with local servers using JSON solutions
  • Providing solutions to scrape data from various sites
  • Developing product bundling rules using Dynamic Discounts in eCommerce platforms
  • Automating AWS documents involving sending emails with all outputs with SSM Document
  • Creating PowerShell scripts to convert data to CSV from an API

Overall, hiring a skilled JSON developer can enable businesses to harness the power of a wide range of web solutions — from report automation scripts, eCommerce shopping rules to flight search result interfaces — that be customised for any application or platform. With the help of Freelancer Platform, clients can find experienced and reliable professionals that have collaborated with businesses globally. With access to experts in the field, businesses can rest assured that their projects are being handled by specialized professionals that are well versed with this technology. We invite you to post your project on Freelancer Platform so you can find the most suitable professional for your needs.

From 132,430 reviews, clients rate our JSON Developers 4.9 out of 5 stars.
Hire JSON Developers

JSON stands for JavaScript Object Notation and it is a data-interchange format that is used for storing and exchanging information. It is more lightweight than the traditional XML format and is even used to send data across the internet from a web server. JSON developers are experts in understanding the syntax of this technology, but also in designing and coding up solutions for a wide range of problems for clients. JSON developers have an essential role in developing a variety of applications such as databases, websites and server-side applications.

Here's some projects that our expert JSON Developers made real:

  • Troubleshooting and creating scripts to transfer data through JSON into webpages
  • Developing modules to integrate dynamic solutions with transport APIs
  • Writing scripts using PHP, Java or Python to store, read and update databases
  • Building search result interfaces or flight search results
  • Connecting websites with local servers using JSON solutions
  • Providing solutions to scrape data from various sites
  • Developing product bundling rules using Dynamic Discounts in eCommerce platforms
  • Automating AWS documents involving sending emails with all outputs with SSM Document
  • Creating PowerShell scripts to convert data to CSV from an API

Overall, hiring a skilled JSON developer can enable businesses to harness the power of a wide range of web solutions — from report automation scripts, eCommerce shopping rules to flight search result interfaces — that be customised for any application or platform. With the help of Freelancer Platform, clients can find experienced and reliable professionals that have collaborated with businesses globally. With access to experts in the field, businesses can rest assured that their projects are being handled by specialized professionals that are well versed with this technology. We invite you to post your project on Freelancer Platform so you can find the most suitable professional for your needs.

From 132,430 reviews, clients rate our JSON Developers 4.9 out of 5 stars.
Hire JSON Developers

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    15 jobs found

    We are hiring one senior Unity XR developer to build and ship a commercial standalone Meta Quest 3 / Quest 3S title for the Meta Horizon Store. This is a fixed-price, time-critical project with two connected deliverables: 1. a polished commercial Quest title 2. the reusable engine foundation it runs on, designed to support future titles in the same series We are not looking for a generic Unity freelancer. We need someone with real, verifiable Meta Horizon Store shipping experience. Required experience * At least 4 live Meta Horizon Store titles * At least 2 titles as lead or sole developer * Strong experience with: * Unity 6 LTS * OpenXR * Meta XR package set via UPM * Addressables * URP * IL2CPP ARM64 * Quest standalone optimization * Meta review / VRC...

    ₹858783 Average bid
    ₹858783 Avg Bid
    20 bids

    I require someone to work on a scraping task tthat require login and need data in 1 hour

    ₹1759 / hr Average bid
    ₹1759 / hr Avg Bid
    14 bids

    I’m looking for a developer who can build a stable, easy-to-maintain Discord bot with that focuses on server moderation. Core commands should let my staff quickly ban, mute, kick, and warn members while logging every action to a dedicated mod-log channel. Beyond the standard tools, the bot also needs to: • Send automated welcome messages in a customizable embed as soon as someone joins • Post regular announcements pulled from a channel or JSON file on a timed schedule • Push event reminders a set number of minutes or hours before start time For smoother moderation, I want spam detection with configurable thresholds, a clean message-filter system for links or specific words, and automatic role assignments triggered by reactions or join conditions. I’ll ...

    ₹2500 Average bid
    ₹2500 Avg Bid
    39 bids
    Web Scraping with Login
    6 days left
    Verified

    I require someone to work on a scraping task tthat require login and need data in 2 hours

    ₹833 / hr Average bid
    ₹833 / hr Avg Bid
    18 bids

    I’m looking for a sharp front-end specialist to take our existing web application and make the user experience shine. The backend is already solid; what I need now is modern, responsive and accessible UI work that feels fast and polished across major browsers and devices. You’ll be working with our REST-based API, so comfort with JSON, Axios / fetch and state management (React + Redux or comparable) is important. Figma files and a clear component map are ready—your task is to translate those designs into production-ready code, wire them to the API, and leave the codebase clean, tested and easy to maintain. Key things I expect • Pixel-perfect implementation of the supplied designs • Reusable, well-documented components • Cross-browser and mobile resp...

    ₹1759 / hr Average bid
    ₹1759 / hr Avg Bid
    244 bids

    I need a skilled Angular developer to craft a fully-static promotional website that highlights the rich culture of Sikkim. The site must feel unmistakably traditional and cultural in its aesthetics while remaining fast, responsive, and easy to maintain. Scope of work • Build with the latest stable Angular, using TypeScript, SCSS/ CSS, and Angular-CLI so I can run a simple `ng build` to generate production-ready static files. • Three core content areas: Cultural Events, Heritage Sites, and Artist Profiles. Each should sit on its own dedicated route with a clean URL structure and an index page that lets visitors filter or search within that section. • A visually engaging home page that acts as a gateway to those sections and immediately communicates the department&rsquo...

    ₹8930 Average bid
    ₹8930 Avg Bid
    43 bids
    PDF Text Extractor & Compiler
    4 days left
    Verified

    I need an application that reads a multipage PDF, pulls out all the text, and then pours that content into a fresh one-page PDF that follows a custom layout I already designed. The flow is simple: open PDF → extract every text element in reading order → map each string to its assigned field or zone in my supplied template → generate a brand-new single-page PDF ready for distribution. My design file shows exact font sizes, margins, headers, and footers, so the app must respect those specifications pixel-for-pixel. Dynamic text should auto-shrink only when a block overruns its allotted space; everything else should remain fixed. No images or tables need processing—pure text only. I’m open to your preferred stack (Python with PyPDF2/PDFPlumber, Java with PDFBox, o...

    ₹41300 Average bid
    ₹41300 Avg Bid
    195 bids

    I’m building a fully-automated lead generation engine and need an engineer who can wire everything together end-to-end. The core flow pulls prospects from Clodo, enriches them with Clay, sequences outreach through Apollo, syncs engagement data back to HubSpot, and surfaces every scored lead in a dedicated Slack channel. All of these services expose solid REST/GraphQL APIs, so the job is primarily about clean JSON handling and resilient workflow orchestration. Key functions I want in place: • Email outreaches, data enrichment, plus lead scoring and routing run automatically on every new record. • GitHub Actions triggers and monitors the pipeline, with Python scripts responsible for transformation, enrichment and retry logic. • Each step posts concise status and error m...

    ₹10834 Average bid
    ₹10834 Avg Bid
    22 bids
    OCR Blood Test Extractor
    3 days left
    Verified

    I have a set of blood-test reports that arrive as PDFs, and I need an accurate, repeatable way to extract only the test result section from each file. The patient demographics and doctor’s notes can be ignored; my focus is strictly on the numerical results, reference ranges, and units. Here’s what I’m looking for: • A lightweight script or small desktop tool (.NET Core + Tesseract, AWS Textract, or any engine you prefer) that ingests multi-page PDF blood panels and returns structured data—CSV or JSON is fine. • Clear mapping of the extracted fields to their respective test names as they appear in the PDF. • Reliability across differing lab layouts; most follow similar tables, but spacing and fonts vary. Acceptance criteria 1. Feed a sample...

    ₹7408 Average bid
    ₹7408 Avg Bid
    27 bids
    Website Data Scraper
    3 days left
    Verified

    We need a robust yet lightweight script that can automatically pull business details from a publicly accessible government website. The information to capture will centre on business details, such as registration numbers, business name, registration date, address, etc. The workflow should: • Navigate every relevant section of the site (pagination, search filters, subsidiary pages). • Extract the required fields accurately • Export clean, structured data to CSV and JSON A Python solution leveraging requests/BeautifulSoup or Scrapy is preferred, but I’m open to other dependable stacks if they handle rate-limits, retries, and potential CAPTCHA gracefully. The script must be easy to rerun on demand, with clear instructions for environment setup and any dependencies...

    ₹16946 Average bid
    ₹16946 Avg Bid
    125 bids

    I need a lean, battery-friendly Android app that can stream a smartphone’s GPS coordinates in real time. Once the user grants permission, the app should run as a foreground service, capture accurate latitude and longitude, and post them every few seconds to the REST endpoint I will provide. A small in-app Google Maps view must mirror the live position so we can confirm everything instantly. Please follow current Android 13 location-permission rules and make sure tracking survives reboots, Doze, and other battery optimisations. I will share the API spec; you may use Retrofit, Volley, or any modern HTTP client you prefer, as long as JSON payloads stay lightweight. Deliverables • Complete Android Studio project (Kotlin or Java) with well-commented code • Signed release A...

    ₹1197 Average bid
    ₹1197 Avg Bid
    13 bids

    I’m putting together a 25–30-page picture book that teaches the etiquette of cleanliness to children roughly 3-7 years old. The narrative should be driven primarily by the illustrations, with short lines of supportive text placed so the artwork stays front-and-center. Here’s the flow I have in mind: • You prepare a simple JSON file that lists every page and the visual concept for that page (character pose, key props, setting, mood, colour cues, etc.). • Using any AI image tool you prefer—Midjourney, DALL-E, Stable Diffusion—generate artwork that closely matches each concept. The goal is a cohesive, appealing style; near-replicas of the reference images I’ll share are fine as long as copyright is clear. • Lay the images and text in...

    ₹1019 Average bid
    ₹1019 Avg Bid
    13 bids
    AWS Deployment of Dual-Model
    1 day left
    Verified

    deploy a dual-model pipeline on AWS. Scope of Work Dual-Model Deployment: Deploy the Pillar-0 (Atlas architecture) for multi-finding classification across Chest, Abdomen, and Brain. Integrate Sybil-1.5 for specialized future lung cancer risk prediction (1–6 year horizon). Inference Pipeline & Report Generation: deploy pipeline that takes zipped DICOM files, performs 3D volumetric reconstruction, and runs concurrent inference. script (attached). This script shows how to read the (Zip file), stack of the medical pictures (DICOMs) into a 3D block, and run both the Pillar-0 model (for findings) and Sybil-1.5 (for cancer risk) -This tells AWS which specialized tools to install to read 3D medical images AWS Cloud Architecture: Host models on AWS SageMaker (GPU instances like m...

    ₹19823 Average bid
    ₹19823 Avg Bid
    93 bids

    Necesito un scraper robusto que automatice la extracción periódica de datos de una web app sofisticada construida con Ionic. El sitio está protegido por Cloudflare y reCAPTCHA invisible, así que el script debe sortear ambas capas sin intervención humana. Qué busco: • Automatizar la tarea de extracción en intervalos regulares (cron o equivalente). • Guardar los datos en JSON o insertarlos directamente en mi base de datos; podemos definir el formato final juntos. • Preferencia por Python (requests, Playwright, Selenium, cloudscraper) u otra tecnología que garantice estabilidad y bajo riesgo de bloqueo. Entregables: 1. Código fuente bien documentado. 2. Instrucciones de despliegue en Linux. 3. Tarea progra...

    ₹3519 Average bid
    ₹3519 Avg Bid
    24 bids

    Tenho um cardápio digital 100% funcional em HTML, CSS e JavaScript puro; o fluxo de pedidos via WhatsApp e o carrinho já operam corretamente. Agora preciso conectar tudo ao Firebase para que os produtos sejam carregados dinamicamente em vez de virem de um array local. O que preciso, de forma objetiva: • Configurar Firestore e Storage, criando a coleção de produtos (lanches e bebidas) exatamente no formato de objeto JSON que já defini. • Substituir o array local pela leitura desses dados no Firebase, mantendo a experiência atual intacta. • Ajustar IDs e qualquer detalhe de estrutura que garanta o funcionamento perfeito do carrinho. • Deixar o código limpo, organizado e comentado para facilitar ediçõ...

    ₹3148 Average bid
    ₹3148 Avg Bid
    16 bids

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