The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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:
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.
Od 134,299 recenzí, klienti hodnotí našeho pracovníka JSON Developers 4.9 z 5 hvězd.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:
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.
Od 134,299 recenzí, klienti hodnotí našeho pracovníka JSON Developers 4.9 z 5 hvězd.# Freelance Requirement – Flight & Hotel Booking API Integration (TripJack) ## Project Overview I am looking for an experienced PHP/WordPress developer with prior experience integrating Flight and Hotel Booking APIs. The current project involves integrating the **TripJack Flight and Hotel APIs** into my existing travel booking portal. Developers who have worked with travel APIs such as **TripJack, TBO, Amadeus, Sabre, Galileo, Travelport, Mystifly, AirIQ, Akbar Travels API, or similar booking platforms** are encouraged to apply. ## Existing Setup * WordPress Website * Custom PHP Development * MySQL Database * TripJack API Credentials Available * API Documentation Available ## Scope of Work ### Flight Module * Flight Search * Flight Details * Fare Quote * Fare Rules * Seat...
I have a list of Discord servers operating in different countries and languages. The job is to send direct messages to users across each listed server. The message content will be customized for every server, with versions prepared in 10 different languages. Pricing Required 1. Test Run Send 1,000 test messages so I can evaluate whether your method works and whether the messages are successfully delivered. 2. Full Campaign Send 10,000 messages per month for 5 months. Total volume: 50,000 messages. Scope of Work You will handle the entire operation from start to finish, including the required accounts and setup. I will provide: graphics, message content, server links, instructions showing which message and language should be used for each server. The contract may be expanded if ...
I need a compact, Linux-friendly suite of command-line utilities written in C or C++ that lets me run deep diagnostics on the following components: • RAM Memory • CPU • HDD & SSD (including low-level write/partition and speed tests) • RF-UNIT support where applicable The tools must be completely CLI-driven so they can slot into existing bash automation. For each utility I also need concise professional usage notes—syntax examples, expected output, and any kernel-module or package prerequisites—so a technician can get productive within minutes. Additional scope items: – Benchmark and stress-test options to reveal peak throughput and thermal throttling on RAM and CPU. – Sequential and random read/write tests on block devices, with sm...
I have an ESP32 DevKit V1 (CP2102) already wired to a PZEM-004T V3, an ADS1115 16-bit ADC, one SCT-013-010 CT sensor, and three DS18B20 waterproof probes. With this hardware I need working firmware and a simple cloud-hosted dashboard that can: • Detect and log the compressor state (ON/OFF). • Detect, log, and quantify both the indoor fan status(ON/OFF) as well as fan current or speed. • Read room, inlet, and outlet temperatures. • Calculate hourly power consumption (kWh) and total run-time for the compressor and each fan. • Push every reading over Wi-Fi using pure HTTP requests formatted as JSON. On the front end I want a live web dashboard that combines graphs with raw tables so I can flip between trends and exact values. The visuals should update in n...
I’m building a lightweight Android-only app whose single purpose is to generate random lottery numbers. The interface needs to stay simple and minimalistic—plain backgrounds, clean type, just one or two buttons—so users can open the app and get their numbers instantly. Here’s what matters: • Core feature: a lottery number generator only. No ticket-purchasing or results-checking at this stage. • Platform: native Android, targeting at least Android 8.0. Kotlin or Java is fine. • Look and feel: strictly minimal, using basic Material Components without flashy graphics. • Randomness: please rely on SecureRandom (or an equally strong method) rather than () for genuine unpredictability. • Configurability: all game rules (number range, dra...
My Facebook Messenger flows are already running smoothly inside ManyChat, but the moment I push a contact over to the data stalls. Tags tied to each lead-magnet download never arrive because the text data inside the payload is not being formatted the way Make expects. I need an expert who has hands-on experience moving text fields between ManyChat and Make (formerly Integromat), setting up custom JSON, and mapping variables so Facebook user details move across reliably. On a live video call I want to: • Walk you through my current scenario, showing where the data stops flowing • Re-configure the webhook / HTTP module so text parameters come through clean and are usable in Make filters • Confirm the tag logic works by sending a test lead from each magnet and watching ...
# API / Data Integration Engineer Required – Horse Racing Analytics Platform We are looking for an experienced API and data integration engineer to support an existing horse racing analytics platform. The backend is already built using **Python, FastAPI, PostgreSQL, and SQLAlchemy**. The system currently supports CSV/XLSX/HTML imports, race card imports, trackwork imports, medical reports, declarations, results, and post-race audits. The current requirement is to integrate structured racing data sources into the existing backend and improve the data ingestion pipeline. ## Scope of Work * Integrate external racing data APIs or structured feeds if available. * Connect data sources such as JSON, XML, CSV, Excel, HTML, or FTP/SFTP feeds. * Build clean API clients for supported provi...
HI, I need SharePoint / M365 SME to teach following items. Need help in quick ramp up of new features. Need resource who is actively working on some or all of the list items. We can do 2 hour interactive session on week days. SharePoint Course Requirement --------------------------- 1- packaging and deployment of custom webparts, list, page, site template 2- programming json for formatting columns, views, list forms 3- Data Loss Prevention (DLP) 4- SharePoint Advanced Management (SAM) - content assessment 5- Data Access Governance (DAG) reports to identify and remediate oversharing and permission risks 6- CI/CD pipeline for deployment 7- SharePoint Framework (SPFx) - few practical use case scenarios for coding and deployment 8- PnP tools and provisioning frameworks for standardize de...
I need my existing Google Sheet to double as a live barcode scanner that talks directly to our Flipkart VMS. When a package’s barcode is scanned—either with a phone camera or a handheld scanner—the sheet should instantly fetch and record the correct Product ID from Flipkart so I can track every item the moment it hits the packing table. The flow I’m picturing is simple: 1. Cursor lands in the “Scan” cell. 2. Barcode is read. 3. Apps Script (or an add-on you build) calls Flipkart VMS, grabs the matching Product ID, and drops it in the designated column—no extra clicks. All logic, API calls, and error handling have to sit neatly inside the sheet so the packing crew keeps working in one tab. I also need a short set-up guide so I can duplicat...
I need two simple yet reliable prototype nodes that can sit outdoors, wake up at a configurable interval, pull a register line from a Modbus-compatible soil probe, and push that reading through a Meshtastic link. No commercial polish required—the goal is to prove the data path end-to-end. Scope of work • Recommend and source—or at least specify—a compact board, radio module, and battery pack (AA-powered) suited for outdoor use. I currently have no hardware on hand, so component guidance is essential. • Write Python-based firmware (preferred language) that: – Powers the Modbus interface, retrieves the probe value, and sleeps between cycles to conserve the batteries. – Publishes the reading over Meshtastic in a lightweight JSON or CSV payl...
I need an expert to redesign the command and control interface for a swarm of drones. The focus is on user experience design, and I'm open to suggestions on specific areas to improve. Ideal Skills and Experience: - Experience in UX/UI design, particularly for complex systems - Strong portfolio showcasing similar projects - Ability to gather user feedback and iterate on designs - Knowledge of drone operation is a plus
Fresh server Project (tickets System)_Testing(teaching) I try to find epert person who can know fresh work as well( special ticket system) Requiment as follow: 0. one more year experence 1. you can create fresh work for trying it (16 days) 2. Ticket Testing for everything to fix problem(software, virsus,hardware,and so on) 3. know api(postman) 4. workfolw ( from frsh work system) 5. you need to know how using any desk tools or remote tools 6. Custom field
I’m enhancing an existing PHP application and now need an experienced developer to wire in several third-party services. The core of the job is to analyse each provider’s endpoint requirements, extend or refactor the current codebase where necessary, and make sure the new integrations run smoothly alongside what is already in production. You will be working with modern PHP (object-oriented, namespaced) on a LAMP stack, so familiarity with RESTful requests, webhooks, JSON handling, and robust error logging is essential. Security is a must—token management, input sanitisation, and graceful failure states all have to be considered from the outset. I’ll give you access to the repository, environment details and any documentation the vendors supply. Your work should pl...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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