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Hire the best algorithm developers near Philadelphia.

Toptal is a marketplace for top remote algorithm developers. Top companies and start-ups in Philadelphia choose Toptal Algorithm freelancers for their mission-critical initiatives.
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Hire remote algorithm developers near Philadelphia or in a similar time zone

Etienne de Boursetty

Member 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

Timofey Nevolin

Member since June 25, 2014
Timofey is a software architect and developer with proven ability to develop efficient, scalable, and fault-tolerant server solutions for complex problems. He has excellent analytic abilities and extensive experience with big data real-time processing, server solutions, and web services. Click to continue

Jordan Ringenberg

Member since March 13, 2016
Jordan is a software and systems guru and startup CTO with expert skills and over a decade of full-stack software engineering experience utilizing C++, Python, Java, Objective-C, C#, MySQL, shell scripting, and web programming. He's a computer vision expert using OpenCV/MATLAB and teaches university CS courses. He was the CTO of Di8itcharts.com, an acquired data-visualization startup, and CTO of Wander Media Company, a multimedia startup. Click to continue

Sina Sadeghian

Member since September 28, 2016
Sina has more than eight years of experience developing Ruby on Rails, React, React Native, Java, and C++ applications. He has a strong background in algorithms and optimization and has taken senior and team leadership roles in many startups as well as large corporations like IBM. Sina also has co-founded a successful startup and worked as the CTO, leading the development from the ground up. Click to continue

Alejandro Correa Bahnsen

Member since July 20, 2015
Alejandro holds a PhD in Machine Learning. He has over 8 years of experience developing data science projects in different areas such as credit card fraud detection, credit scoring, collections, churn, and direct marketing. He enjoys giving talks on successful applications of big data science to different organizations. Moreover he is an active contributor to several open source projects such as scikit-learn. Click to continue

Dave Poirier

Member since August 15, 2017
Since 2010, Dave has been working full-time as an iOS developer in Objective-C and Swift. He also has 20 years of experience in software development specializing in Assembly (Intel) and C. Throughout the years, he's had the opportunity to work on many software development projects in a myriad of software languages. Click to continue

Emilio Almansi

Member since October 29, 2017
Emilio has a broad skill set ranging from full-stack development and distributed computing to blockchain technologies. He has had extensive experience with the Java and Node.js ecosystems as an intern at Google and the Max Planck Institute for Informatics, as well as working remotely with a big data startup in Berlin. He has strong analytical skills and takes great care in communicating with clients to find the right solution for their needs. Click to continue

Gabriel Poesia Reis e Silva

Member since May 9, 2018
Gabriel has founded two startups, going from zero to launching a product and impacting costumers, and worked at established tech companies. He has experience working in compilers/LLVM, having been in a compiler's team at Facebook, but also developing Web applications with Node.js, React, and the latest JavaScript standards. He can identify and prioritize what's most important for a business, and execute regardless of what challenges pop up. Click to continue

Martin Galindez

Member since July 20, 2015
Martin is a software engineer with over five years of experience developing applications on the .NET platform. He tends to stay committed to an assignment until expertise is gained and great results are produced. He enjoys working with professionals around the world generating business synergy. Click to continue

Matías Schapiro

Member since January 2, 2015
Matías has been programming as a hobby since he was six years old. He started with GW basic and Quick Basic in the eighties and has used a lot of technologies since then. Now, he focuses on C#. After finishing his Master's degree in Finance, he has tackled a lot of projects related to capital markets and quantitative algorithms. He loves software and finance and would be an excellent candidate for this kind of project. Click to continue
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“The best talent is at Toptal for sure. It's way better and faster than any other means of getting top talent.”
Rajesh Nagarajan
Co-Founder & CTO @ maxmantra
“Toptal is a great resource for startups with ever-changing product roadmaps and budgets. Within 8 business days of our first conversation, we had highly skilled and reasonably priced Toptal developers working for us. It has been an empowering experience for our company to start working with Toptal.”
Chris Clark
CEO @ BirdieFire
“Toptal provides a great service: Within a week of posting my job, I was matched with my developer and ended up completing the entire project with him. I'll continue to use Toptal in the future for any new development work I may need.”
Mike Jones
CEO @ DigitalDripped
“We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.”
Ryan Morrissey
CTO @ Applied Business Technologies, LLC
“We recently launched our app with the help of Toptal and Nikola, an iOS developer. I was immediately impressed with the constant communication, detail, and level of talent that Nikola brought to the table. More importantly, when the project was underway, Nikola proactively provided creative workarounds for unforeseen hurdles and challenges. I couldn't be happier with our engagement and would highly recommend Nikola and Toptal.”
Chip O'Toole
Founder @ Humans Helping Robots LLC
“Toptal developers deliver. Hiring my first developer on Toptal was such a pleasant experience that I quickly turned around and hired another. Every developer I've hired on Toptal has been professional, skilled, and self-managing—a pleasant departure from the typical freelancer marketplace.”
Mike Riess
Owner @ RiessGroup
“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
“The Toptal process was very organized, personable, and professional. They get to know you and your project idea, and then quickly provide you with several of the world's best developers, who will work hard to achieve your vision. I found a great developer in only a few days and was able to turn my idea into a functional product.”
Ben Woratyla
CEO @ Book Swap
“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
“I’m a big believer in the saying, ‘hire smart, or manage tough’. For us non-hackers, Toptal takes the guesswork out of hiring. Their coders are vetted, and the work is guaranteed. Why look anywhere else?”
Greg Archbald
Founder & CEO @ Greasebook
“FundedByMe needed to quickly scale our development team to create the equity crowdfunding leg of our operation. Working with a small budget, we couldn't spend time on vetting candidates, so we turned to Toptal. They identified a stellar developer that truly set the bar when it came to delivering product.”
Arno Smit
CTO @ FundedByMe.com
“Toptal helped us achieve our goals by really understanding what we were looking for. They worked with us very closely to figure out what the right talent looked like -- from a technical, cultural perspective -- and helped us get the onboarding done quickly so the talent could be effective as soon as possible. ”
Jay Tring
Technical Team Lead, CSR Connect, Australia @ CSR Limited
“Getting set up with Toptal and finding a new team member was so easy, I don't know why anyone wouldn't give it a try. Best of all, we no longer have to worry about finding great people to help with our projects!”
Mike Branch
President & CTO @ Harbor System Integrators, Inc