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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 software projects.
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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 guru with expert knowledge & over 9 years full-stack software engineering experience utilizing C++, Python, Java, Objective-C, C#, MySQL, shell scripting, & web programming. He's a computer vision expert using OpenCV/MATLAB & also teaches as a computer science professor at a university. He's also the CTO of di8itcharts.com, a data-visualization startup & a head engineer of Wander Media Company, a media startup. Click to continue

Dany Farina

Member since September 12, 2016
Dany has more than 10 years of experience developing applications on the .NET platform, using C#. He has experience building standalone desktop applications and web-services. He also has expertise in algorithms and optimization which he keeps honed by participating in programming competitions. He has worked with teams of all sizes and has experience leading small development teams. Click to continue

Wilber Torres Cristobal

Member since March 17, 2015
Wilber is a senior Java developer and problem Solver with experience bringing up distributed and scalable architectures as well as refactoring and optimizing existing ones. He has the ability to learn quickly and is always committed to delivering top-notch solutions. He is always looking for challenges and staying up-to date on the industry's latest tech 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

Alexis Hernandez

Member since February 28, 2015
Alexis taught himself how to program while he was in high school, in an environment with very limited internet access and no guidance. Despite all of this, he fell in love with coding. He's a generalist who has worked in a lot of areas—from embedded devices to web applications. He sets a high bar for code quality and applies good coding and security practices. He's currently building scalable microservices with Scala and Play Framework. 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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“We've used Toptal developers multiple times for multiple projects, and they've always been world-class—regardless of whether they've been from South Africa, Brazil, or the United States.”
Alex Haro
CEO @ Life360
“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
“What attracted us to Toptal was that Toptal is sourcing its talent from a global pool. The selection process is very stringent. They’re sourcing the talent not only based on capabilities -- sourcing the best 3% -- but also based on cultural fit, which is really important to us. We had an amazing experience working with Toptal. Toptal helped us achieve our goals by bringing us very high-quality resources, on very short notice.”
Elmar Platzer
Digital Transformation Leader, CSR Australia @ CSR Limited
“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
“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
“We've been very pleased with our experience working with Toptal. Their team was incredibly helpful in finding us the perfect developer for our project. The work was stellar, the communication was excellent, and we couldn't have been happier with the overall experience. We're excited to work with Toptal for more projects in the future. ”
Ryan Walker
Director, Product Management @ Rand McNally
“Through Toptal, we were able to find and select a senior engineer who is both very professional and easy to work with. The quality of matching that Toptal enabled has been crucial to our success, was at a fair price, and came with a much appreciated, risk-reducing trial period.”
John Olsen, Director
Director @ Bingosolutions
“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
“I struggled for weeks with a Youtube API-specific problem and couldn't find anyone to solve it. Toptal immediately identified the right consultant who took the time to investigate the issue and resolve it quickly. The process was seamless and I will continue to use Toptal with any other issues that arise.”
Rohit Gupta
CEO @ Bollyshake
“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
“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.”
Aaron Titus
Project Manager @ Crisis Cleanup
“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.
“We needed a expert engineer who could start on our project immediately. Simanas exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient. Toptal is now the first place we look for expert-level help.”
Derek Minor
Senior VP of Web Development @ Networld Media Group
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