Hire the Top 3% of Freelance JSON Experts

Toptal is a marketplace for top JSON Experts. Top companies and startups choose Toptal JSON freelancers for their mission-critical software projects.

No-Risk Trial, Pay Only If Satisfied.

Clients Rate Toptal JSON Experts4.9 / 5.0on average across 6,375 reviews as of Jun 22, 2024

Hire Freelance JSON Experts

Zenel Rrushi

Freelance JSON Expert
Albania
Toptal Member Since March 6, 2019

Zenel started his developing journey in 2015, where he began by getting the most of various technologies like SQL Server, PHP, jQuery, HTML, and CSS. Later, he started working as a back-end (PHP) developer and was soon promoted to the team lead. Zenel also worked and managed teams of all sizes during his career while using the following frameworks and technologies: Magento 1 and 2, Laravel, Lumen, CodeIgniter, Vue, and Fusio PHP framework.

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Aitizaz Khan

Freelance JSON Expert
United States
Toptal Member Since February 24, 2017

Aitizaz is a full-stack engineer with expertise in Ruby on Rails and Java. He is keenly interested in algorithm-level efficiency and has experience working both with front-end and back-end technologies as well as frameworks. Aitizaz is also a competitive programmer who actively participates in different online challenges. He loves learning about anything, especially if it make him better at his craft.

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Rodrigo Donini

Freelance JSON Expert
Brazil
Toptal Member Since December 12, 2016

Rodrigo is a focused Developer who produces digital projects for agencies worldwide. He has 21 years of experience using various methodologies and tech in most web and mobile projects. He has a solid knowledge base of the WordPress world and is very engaged with the community. Rodrigo enjoys building custom themes, plugins, and core customizations. He specializes in WordPress, developing for the front-end and back-end, and managing digital projects.

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Patryk Pawłowski

Freelance JSON Expert
Poland
Toptal Member Since December 24, 2016

Patryk is a seasoned full-stack developer who specializes in all types of modern JavaScript implementations—from architecting the back end and APIs to building pixel-perfect web and mobile apps. Thanks to his experience running his own company and having a background in design, he is a great facilitator between business and product teams. Patryk also enjoys speaking at conferences.

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Luciano Greiner dos Santos

Freelance JSON Expert
Brazil
Toptal Member Since June 9, 2016

Luciano is a seasoned professional with a decade and a half of experience developing Java enterprise applications. Currently, he's focused on big-data technologies such as Spark, Cassandra, Kafka, and Elasticsearch. He's capable of working as a full-stack engineer, having also worked with JavaScript and AngularJS in the past. Luciano is also fluent in English, has a native level in Portuguese, and has basic Spanish speaking abilities.

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Tomasz Czura

Freelance JSON Expert
Poland
Toptal Member Since February 6, 2016

Tomasz is an Android developer who specializes in creating user-friendly and useful applications with the newest technologies. He enjoys experimenting with different languages and technologies, extending his skill set beyond Android to tasks leveraging React or iOS. Tomasz makes it a personal goal to ensure the client is fully satisfied, and often likens the process of software development to writing a good, interesting novel.

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Vadim Dagman

Freelance JSON Expert
United States
Toptal Member Since August 8, 2013

Vadim is a seasoned freelance software developer, architect, technical manager, and entrepreneur with over 25 years of professional experience. He has built many complex world-class software products from start to finish, spanning numerous platforms. He has worked both individually and as a group leader.

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Pere Casafont

Freelance JSON Expert
Spain
Toptal Member Since May 6, 2015

Pere is a software architect with over a decade of experience working on JVM-based back-end products ranging from custom binary protocols to REST APIs on Ktor. He has a remarkable ability to work on and get the best out of any kind of project. Once Pere is in a team, they will gradually notice an increase in that team's cohesion and performance, no matter his position in it. He is very communicative, proactive, and committed to the projects he works on.

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Jorge Nicolás Cellerino

Freelance JSON Expert
Argentina
Toptal Member Since March 7, 2016

Jorge has many years of experience working with Node.js, TypeScript, SQL, React, Java, and related frameworks like Express and Spring. He has recently focused on Agile methodologies for building RESTful web services for mobile and web applications. Jorge is responsible, proactive, a fast learner, committed to results, and well-accustomed to working with distributed teams in different time zones.

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Brantley Pace

CEO & Co-Founder

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley

Director

The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller

CEO

Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik

Co-Founder

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee

Principal

How to Hire JSON Experts Through Toptal

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right JSON expert for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new JSON expert for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

Find Experts With Related Skills

Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours.

FAQs

  • How are Toptal JSON experts different?

    At Toptal, we thoroughly screen our JSON experts to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire JSON experts in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a JSON expert within 48 hours of signing up.

  • What is the no-risk trial period for Toptal JSON experts?

    We make sure that each engagement between you and your JSON expert begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top JSON Experts Are in High Demand.

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