Hire the best API developers near Philadelphia.

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

Darley Stephen

Freelance API Developer at Toptal since May 2, 2016
Darley is a developer and architect with more than 18 years of experience in information technology including Java, PHP, C#, Oracle, Salesforce, and more. With his experience in varied technologies and industries, he can assure that his quality of work will be the best. Click to continue

Omar Pera Mira

Freelance API Developer at Toptal since October 8, 2015
Over the past four years, Omar has launched more than 10 Android applications, 4 of which have over a million users each. He's got a Top Developer badge by Google in Google Play. Lately he's consulted for chat bots, and curates the leading newsletter in the space. Previously, he led the back-end and front-end teams at Pixable in NYC (acquired for $30M), and worked as a back-end engineer at CERN (known for the LHC particle accelerator). Click to continue

Max Simon

Freelance API Developer at Toptal since July 6, 2015
Max is a developer with more than 5 years of experience creating Android apps. He has developed more than 15 apps to date, with an average rating between 4 and 5 stars in the Play Store. Max is passionate about new technologies and always ready for new challenges and discoveries. Click to continue

B. Quincy Cabell

Freelance API Developer at Toptal since July 2, 2014
For 15 years, Quincy has been principal architect and developer of front-end and back-end web, desktop, and mobile software. His specialties include prototyping, leading teams within startup ventures, and delivering high performance and high reliability code. Click to continue

Steve Gattuso

Freelance API Developer at Toptal since September 8, 2017
Steve has more than 12 years of experience in all sorts of development roles, but he specializes in full-stack web development (with Rails and React/Redux) and cross-platform React Native applications. He prefers to work with small-to-medium sized firms in prototyping new products, workflow automation, and advising on the technical architecture. Click to continue

Etienne de Boursetty

Freelance API Developer at Toptal since April 10, 2016
Etienne has been working in the financial industry for 10 years, building models and market analysis tools for traders at world class financial institutions and hedge funds. Working primarily in C#, he has designed and developed large scale data analysis platforms that allowed business-focused team members to quickly crunch vast quantities of numbers efficiently. Click to continue

Corey Stout

Freelance API Developer at Toptal since February 20, 2017
Corey has over 9 years of experience developing Ruby on Rails and JavaScript applications—including 4 years of managing his own development teams. He specializes in making applications fast and scalable. He communicates extremely well and prides himself on solving tough business problems with simple and elegant code. Click to continue

Douglas Porter

Freelance API Developer at Toptal since January 23, 2017
Doug has a bachelor's degree in computer engineering from Purdue University, and has been working in the Salesforce.com ecosystem for nearly 5 years—consulting and developing secure applications for small to large enterprises, as well as enterprise applications for the Salesforce AppExchange. Doug is capable of seeing to and architecting complex systems as well developing the fine details of each component. Click to continue

Andy Potanin

Freelance API Developer at Toptal since January 30, 2018
Andy is a businessman who understands the fundamentals of business and who knows how to code. Overall, he's very experienced in nearly all aspects of contemporary web development, deployment, DevOps, and the elements of building a solid stack that can scale. Early on in his career, he was a very early adopter of Docker and Node.js and has a strong development background with the WordPress API. Click to continue

Dan Napierski

Freelance API Developer at Toptal since December 20, 2015
Dan is a software architect and technology professional focusing on applications of blockchain technologies. He has years of experience providing professional consulting services to clients ranging from startups to global corporations. He specializes in bringing rigorous testing and bulletproof code to tough engineering challenges. He has deep expertise in many aspects of artificial intelligence, blockchain, machine learning, and automation. Click to continue
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“With Toptal, we are able to find talented developers in a matter of weeks instead of months. The quality of talent they supply is extremely high as the developers are able to immediately onboard and ramp incredibly fast.”
Zac Carman
CEO @ ConsumerAffairs
“In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered! ”
Lara Aldag
CEO @ Higgle
“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 is amazing. Sourcing and interviewing candidates has always been incredibly cumbersome and difficult - and usually takes weeks or months to find the right people. With Toptal, we had 5 candidates in 2 days that were all perfect for the job. They made the scheduling of interviews easy and straightforward and we were working with a top-level developer within 2 weeks. I love you, Toptal.”
Ian Fosbery
CTO @ NMRKT
“Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!”
George Cheng
CEO @ Bulavard, Inc.
“With the pressure on and millions watching the Cleveland Cavaliers during the NBA Playoffs, Toptal delivered the talent and expertise needed to launch a brand new fan engagement platform.”
Conor Kenney
Director of Professional Services @ Cleveland Cavaliers
“We needed a talented developer and we needed him/her very quickly. So we turned to Toptal and couldn't be happier with the results! Our Toptal freelancer has contributed extraordinary knowledge, talent, and startup experience to our team. We will continue to work with Toptal to fulfill our future talent needs.”
Lindsay Fairman
Founder & Owner @ FairTech Labs, LLC
“We needed a programmer to help push a project over the finish line, and I figured -- best case -- Toptal would find someone who would come in and complete a few tickets. Instead, Sergio blended right in with the team and made significant progress after mere days of ramp-up. He even offered to take his laptop with him on vacation in case we had a customer issue with his code! He surpassed my expectations, and then some.”
Bryan Adams
CTO @ Healthsense
“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 @ Site Specific Software Solutions
“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
“My experience with Toptal has exceeded expectations. I needed to quickly find a front-end developer, and the first person they recommended was a perfect fit. A month later, I needed an iOS developer and they delivered again. I'm incredibly impressed with the quality of the people in Toptal's network and how quickly I was able to find a match for my needs.”
Bruno De Martino
Head of Product @ Token
“We've been incredibly pleased with our experience working with Toptal thus far. Their team worked quickly and efficiently to isolate the needs of our project, and they paired us with an appropriate developer within a couple days who we quickly contracted after a great interview. The work performed on our project was top-notch, and we can’t wait to make use of Toptal’s resources again.”
Ryan Staake
Owner @ Pomp&Clout
“Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it. ”
André Fischer
CTO @ POSTIFY
“The task of finding and hiring the right developers and programmers can be daunting, especially for startups. After sifting through countless unfit freelancers, we came across Toptal. They were able to fill our open position in no time, and I'd highly recommend the service!”
Josef Holm
CEO @ Tubestart
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