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Hire the best C# developers near Philadelphia.

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

Max Stepanskiy

Freelance C# Developer at Toptal since April 15, 2014
Max is a top architect, engineer, and full stack developer with extensive experience working in various industries. He has a proven ability to define and develop efficient, performant, scalable, and fault-tolerant solutions Click to continue

Jean Christian Daudier

Freelance C# Developer at Toptal since February 16, 2014
Jean Christian is a full-stack software engineer who is great at balancing timely delivery and code quality. He has an Agile and test-driven mindset with knowledge of dynamic and static languages as well as object-oriented and functional programming paradigms. He works well both with team members and alone. Click to continue

Orest Khrapko

Freelance C# Developer at Toptal since August 27, 2014
Orest is a highly skilled senior developer with extensive development experience in system design, .NET technology stack including C#, ASP.NET, MVC, Web API, SQL, and Entity Framework. He is passionate about JavaScript and related technologies, namely Angular, AngularJS, Knockout.js, Vue.js, jQuery, Node.js, Ionic, etc. He has built many complex world-class products from start to finish, making every project he works on a success story. Click to continue

Jordan Ambra

Freelance C# Developer at Toptal since June 6, 2013
Jordan is a top-notch architect, developer, sysadmin, and entrepreneur with the passion and experience to help businesses solve complex problems. He is an expert full-stack developer, bringing projects from concept to completion, with a proven track record of delivering powerful, stable, and comprehensive solutions. Click to continue

Christopher R. Wirz

Freelance C# Developer at Toptal since March 22, 2013
Christopher is a strong believer in abstraction and making all components communicate, from the database to the UI. He's created several plugins for desktop applications, but his real passion is working on great APIs to deliver content for the browser and desktop applications alike. Click to continue

Rory Woods

Freelance C# Developer at Toptal since March 25, 2014
Rory is a software consultant delivering solutions to fill enterprise needs. He brings technical skill and experience guiding teams in not just how to build, but what to build. He has extensive experience on the Microsoft web stack, including ASP.NET MVC, Web API, SQL Server, and Azure. Click to continue

Joseph McNulty

Freelance C# Developer at Toptal since December 20, 2017
Joseph is a man with strong leadership skills and who is also extremely experienced in software engineering—specializing in mission-critical systems in aerospace, defense, and telecommunications fields. He has over two decades of experience designing and developing sophisticated enterprise web applications using various technologies, most recently with ASP.NET MVC. Click to continue

Andrè Barnes

Freelance C# Developer at Toptal since December 18, 2013
Andrè is a top engineer and developer with over fifteen years of experience creating web and windows solutions. He is an intellectually curious decision-maker with good communication skills. He is a motivated self-starter with the ability to learn and adapt quickly. Click to continue

Charles Oliner

Freelance C# Developer at Toptal since September 5, 2017
Charles has a strong grasp of 3D math, physics, graphics, pathfinding, internet networking, data manipulation/transformation, game systems, procedural generation, file systems, and advanced programming techniques. He is fluent with C#, C++, Java, Unity ShaderLab, JavaScript, HTML, PHP, CSS, Git, and Unity. Charles has previous experience working as a freelance developer and communicates extremely well. Click to continue

Etienne de Boursetty

Freelance C# 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
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Toptal in the press
“Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.”
Selina Wang
“Toptal allows corporations to quickly assemble teams that have the right skills for specific projects.”
Steven Norton
Testimonials
“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 @ K Dunn & Associates
“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
“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
“I'm incredibly impressed with the caliber of the Toptal developers I have worked with - they have proven themselves to be both dedicated and highly talented. We will most definitely continue to work with Toptal. ”
Savannah de Savary
Founder @ Industry Hub
“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
“John has been so great to work with! He has met all our requirements, done a speedy job with excellence, and has completed everything we’ve asked him to. Working with him has been a great experience.”
Jenny Lord
Communications Project Manager @ Lake Pointe Church
“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
“It has been wonderful to work with Fabian for the past two years. He is an expert in JavaScript development and has built our embeddable widget and video player. He is a quick study and is able to learn how to integrate new technologies, which is so critical for a startup. He even took the extra effort to teach others on the team. He is super responsive and often went above and beyond to help us meet deadlines (including working on weekends). Thank you Fabian. Thank you Toptal for making it so easy to find and work with amazing talent.”
Natasha Mohanty
CTO @ FEM Inc
“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
“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
“We have been incredibly happy with our Toptal experience. Initially a skeptic, the process to find and recruit a fabulous iOS developer was very easy. Rather than sifting through hundreds of CVs, we saw two and hired them. They have worked effectively, getting up to speed incredibly quickly and have almost become part of the team. We would definitely use Toptal again. ”
James O'Day
Co-Founder @ Pearlshare
“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
“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

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