Hire the Best
JSON developers
Check out JSON developers on Upwork, with the skills you need for your next job.
Trusted by 
Zlatko D.
Ohrid, North Macedonia
Full-stack developer with expertise in Next.js, React, WordPress, and PHP. I build modern, scalable web applications and custom websites. Skilled in TypeScript, MySQL, and more. Let's bring your project to life!
- JSON
- CSS
- CSS 3
- HTML5
- jQuery
- WordPress
- Bootstrap
- JavaScript
- WordPress Plugin
- MySQL
- CodeIgniter
- MySQL Programming
- React Native
Amy H.
Madison, United States
With an extensive Upwork client history profile and having been Expert-vetted by Upwork as being in the top 1% of freelancers, I look forward to working with you soon! I am an integrations expert and am able to use tools such as Zapier, Microsoft Power Automate (formerly called Flow), and Make (formerly called Integromat), to create API integrations between many different applications. I have a keen understanding of backend data and how to easily get relevant information from one system to another. Integrating systems on the backend helps business workflow to be simplistic, efficient, and fast. I have been working on integrations since 2016, and have linked together numerous CRMs, accounting systems, marketing systems, spreadsheets, etc in a variety of ways, some simple and some extremely complex. Given API documentation, I am able to build custom connections, triggers, and actions in Zapier for many cloud based applications that do not yet have Zapier integration.
Some of my other skills include Javascript, Airtable, Google Sheets, Google Forms, Fillable PDFs, Softr, JotForm, Typeform, Fillout Forms, X2CRM, Excel, Canvas, Planning Center, TeamUnify, Amateur Radio Operator, French language.
As the owner of Glaive Consulting, I understand the needs of the small business owner to automate as much of the business as possible to allow focus on client work. Task tracking, time tracking and invoicing and customer followup are among some workflows that I have optimized for my business. Let me help you do the same!
- JSON
- SQL
- Zapier
- Jotform
- HubSpot
- API Integration
- API
- Relational Database
- Automated Workflow
- Report Writing
- Make.com
- Airtable
- Microsoft Power Automate
- Customer Relationship Management
- Automation
Alaa E.
Aga City, Egypt
Hi, my name is Alaa and I am an expert in Motion designer/Animator. I would love to have the opportunity to work your project. My expertise spans across various fields, including:. Check out my reel. Shoot me a message, and let's make something awesome together!
Services:
- logo animation;
-Lottie/Bodymovin Animations
- 2D animation;
- Slide shows;
- Explainer videos;
- Motion graphics animation;
- Promotional videos;
- Web site presentations;
I create animation videos using: Adobe After Effects, Adobe Illustrator, Adobe Photoshop.
- JSON
- Animated Explainer
- Adobe After Effects
- Motion Graphics
- Animated GIF
- Adobe Illustrator
- 2D Animation
- Logo Animation
- Logo Design
- Video Intro & Outro
- Vector Graphic
- Lottie
- Video Animation
- Explainer Video
- GIF
- Character Animation
Ferhat K.
Istanbul, Turkey
Are you searching for a talented motion designer to bring life to your graphics with the perfect format? Look no further!
As a 2D motion designer and expert in Lottie animations, I have completed over 200 projects with a high success rate, as evidenced by the positive reviews on my Upwork profile.
Lottie, a JSON-based animation format, is ideal for use on any platform. These small files offer seamless performance on any device and are easily scalable without sacrificing quality.
In addition to Lottie/JSON and Bodymovin, I specialize in creating custom and unique animations, such as:
✔️ Logo animations
✔️ Loader animations
✔️ Splash screen animations
✔️ Intro/Outro animations
✔️ Illustration animations
✔️ Onboarding screen animation
Plus, I also provide optimized Lottie files, reducing file size by up to 30%.
Feel free to contact me for a chat and live feedback on your project. Let's bring your vision to life with engaging animations.
- JSON
- Adobe Illustrator
- Lottie
- 2D Animation
- Motion Graphics
- Motion Design
- Animated GIF
- Adobe After Effects
- Flat Animation
- Logo Animation
- UI Animation
- Video Intro & Outro
Khalil M.
Islamabad, Pakistan
I am a highly skilled Full-Stack Developer with over a decade of experience delivering scalable, high-performance applications across backend, cloud, and enterprise solutions.
I have worked with global clients, including the United Nations, Guest supply, and multiple startups, building solutions for AI-powered applications, cloud automation, APIs, enterprise integrations, and performance optimization.
💡 What I Offer:
🔹 Backend Expertise – .NET (Core & Full Framework), Java, Node.js, Python, GoLang
🔹 Frontend Proficiency – React.js, Vue.js, Angular
🔹 Cloud & DevOps – Azure, AWS, GCP, Docker, Kubernetes, Terraform, CI/CD
🔹 Database Management – SQL Server, PostgreSQL, MySQL, MongoDB, Azure SQL
🔹 API Development – REST,SOAP, GraphQL, OAuth, Webhooks, Microservices
🔹 Automation & AI – Enterprise AI, Web Scraping, Bots, Performance Optimization
🚀 Why Work With Me?
✔ Proven Track Record – Worked with enterprise clients & startups on complex, large-scale applications.
✔ Full-Stack & Cloud Expertise – Backend-heavy enterprise app development with cloud automation.
✔ Scalable & High-Performance Solutions – Specialized in building optimized, production-ready applications.
✔ Seamless Communication & Collaboration – Proactive, reliable, and committed to delivering quality work on time.
🔹 Need a reliable, experienced developer for your project? Let's discuss how I can help!
- JSON
- NoSQL Database
- JavaScript
- ASP.NET Core
- Python
- SOAP
- SQL
- C#
- API Integration
- Automation
- API Development
- Cloud Architecture
- React
- Node.js
- RESTful Architecture
Milan Š.
Kamnik, Slovenia
With over 25 years of international experience in software development, quality assurance, and project management, I specialize in delivering top-notch solutions. My expertise spans software automation, performance optimization, and database programming, with a focus on storage and meter data management.
Key Technologies:
Domains: Data/Web Scraping, Integration, Reporting, Automation, Optimization, Analytics, GIS, Meter Data Management
Programming Languages: Python, Java, SQL, HTML, JavaScript, PHP, C/C++
Scripting Languages: Python, Perl, PowerShell
Platforms: Linux, Windows, Arduino, Raspberry Pi
Environments: PyCharm, SQL Developer, Eclipse, Salesforce, MS Office Suite
Databases: Oracle, MS SQL, MySQL/MariaDB, Postgres
Frameworks: React, Node
Career Highlights:
Developed web scraping tools, communication protocols, and automation solutions for various industries.
Designed and operated multi-GPU cryptocurrency mining rigs.
Created a customizable automated testing framework for embedded Linux-based power management solutions.
Implemented integration and reporting modules for leading European clean energy storage companies.
Consulted on performance testing environments for major utility companies.
Awards and Recognition:
Employee of the Year 2001, Hermes SoftLab d.d.
Received multiple client commendations for exceptional project performance.
Languages:
Slovenian: Native/Active
English: Active
German: Passive
Serbo-Croatian: Active
Hobbies:
Technical literature, winemaking, cycling, skiing, photography, following science and technology developments.
Education:
Bachelor's degree in Computer Science from the University of Ljubljana.
Licenses & Trainings:
Cryptocurrency trading & mining optimization.
Advanced Python and Java programming.
Expertise in IEE/SAP integration, cybersecurity, and GIS applications.
- JSON
- Data Scraping
- Raspberry Pi
- Scripts & Utilities
- System Automation
- Perl
- Automation
- SQL Programming
- Selenium
- Scripting
- Python
- Data Analysis
- XML
- Arduino
- Testing
How it works
Post a job for free Post a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge— With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
Katja Krohn
Summa Linguae