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Hire the best Ext JS developers near Boston.

Toptal is a marketplace for top remote Ext JS developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups in Boston choose Toptal Ext js freelancers for their mission critical software projects.
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Hire remote Ext JS Developers near Boston or in a similar time zone

Marco Antonio Bender, MBA, PMP

Member since October 3, 2015
Marco is an IT engineer with ten years of experience in software development and project management. He's developed enterprise-level high availability and scalability systems based on location and mobility using ASP.NET and SQL Server. He has strong skills in C#, .NET, ASP.NET, SQL Server, Ext.js, jQuery, Ajax, JSON, REST, and Azure. Click to continue

Josue Demartini

Member since May 6, 2016
For over the past nine years, Josue has worked as a computer scientist and gaining experience in Agile methodologies. He's passionate about new technologies, and since 2008, has developed enterprise applications with several framework and tools. Josue also has strong skills in .NET technologies and in JavaScript. Click to continue
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“Chris is an absolutely exceptional Python developer, and the single most efficient programmer I've ever worked with. From the beginning of the project, Chris was instantly a vital member of the team. He's proactive, self-managed, knowledgeable, and efficient. I point him in a direction, and he delivers. Chris will be a part of the Crisis Cleanup team as long as I have anything to say about it.”
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CTO @ Langlotz Patent & Trademark Works, Inc.
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Rohit Gupta
CEO @ Bollyshake
“Robert was such a breath of fresh air. He was an excellent communicator and knew exactly what I was looking for. Now, I have a website that works better than I thought it could for less than the cost -- and in half the time -- it would have taken other developers. Robert is as good as they come, a true professional -- anyone thinking of working with him, hire him. You won’t regret it.”
Matthew Bennett
CEO @ Winning Social LLC
“I needed help, and fast. I did not want to hire a random coder I met online- I was worried about security, and many other issues. Toptal was there when I needed them- and has been fantastic to work with. Outsourcing is full of terrible stories- Toptal is the story that is the giant exception. I give them my highest recommendation.”
Michael Feder
Founder & CEO @ PrayerSpark
“We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.”
Franco Arda
Co-Founder @ WhatAdsWork.com
“We really enjoy working with Toptal. The experience has been very positive, and we'd recommend it to anyone seeking developers on-demand.”
Jeff Kerr
CEO @ CaseFleet
“Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.”
Jeremy Wessels
CEO @ Kognosi
“Toptal helped us when we had a hiring gap we needed to fill. The developer we received was excellent, with a great work ethic and fit in very well with the team. We are very happy with the service and would definitely consider using Toptal again in future should we need additional help. ”
David Gildeh
CEO @ Dataloop.io
“Finding a good developer who specialised in the technologies we use seemed like an impossible task... until we used Toptal. We had several trial periods and have just accepted our first developer to join the team! The whole process went seamlessly and without any surprises or hidden costs. We are very happy and will continue to work together!”
Artem Tolmachev
CEO @ eKids.nl
“I've been very happy with Juraj. He is efficient, writes great code, and is an extremely nice guy to work with. Most importantly, he is self-motivated -- in his initial pass at the code base he has contributed several optimizations and stability improvements.”
Matt Cotton
Dev Team Lead @ eFolder
“I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.”
Pietro Casoar
CEO @ Ronin Play Pty Ltd
“Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.”
Dennis Baldwin
Chief Technologist and Co-Founder @ PriceBlink
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