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Hire the best system security developers near Philadelphia.

Toptal is a marketplace for top remote system security developers. Top companies and start-ups in Philadelphia choose Toptal System security freelancers for their mission critical software projects.
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Hire remote system security developers near Philadelphia or in a similar time zone

Darley Stephen

Member 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

Stefan Progovac

Member since January 31, 2015
Stefan is a highly skilled iOS developer with a master's degree in physics. He loves both technological and artistic sides of software engineering. He has had the pleasure to work on some popular enterprise-level apps used by millions of people for companies like Target, Best Buy, and Coca-Cola. He believes that app development is truly an art. Click to continue

Luke Sapan

Member since July 7, 2015
Luke is an efficient and passionate Software Engineer with more than 14 years of programming experience. He has excelled in leadership positions but is also great with solo projects. Luke loves full-stack web development and his recent projects exemplify this in the field of administration. Luke is currently working in a senior engineering and systems administration position. Click to continue

Jon Fenner

Member since December 6, 2017
Jon has over 20 years of experience in web application design, development, and infrastructure using a variety of platforms, including Java, ReactJS, NodeJS, and MySQL. He communicates extremely well, and works well both individually and as a team player or leader. Click to continue

Andy Potanin

Member 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

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

Gabriel Bull

Member since February 9, 2014
Gabriel excels at development, design, and branding. He combines these skills every day to imagine, draw, and build amazing web sites and web applications, from the ground up to final deployment. Click to continue

Matthew Best

Member since April 5, 2016
Matt is a passionate, talented software developer with over five years of experience developing complex applications in the fields of cyber security, automated tools, web applications, and back-end support systems. He is an expert in Windows applications, but is also proficient in creating cross-platform and web applications. He is an avid learner, a great communicator, and an excellent addition to teams of all sizes. Click to continue

Daniel Nuske

Member since January 13, 2014
Daniel is a fast learner, an excellent communicator, and a broadly experienced software architect. He is a strong problem solver and full-stack developer, working with everything from the data to the UX. He focuses heavily on resource usage and best practices of software development. Click to continue

Vinny Miana

Member since December 29, 2012
Vinicius is a seasoned, capable software architect who is an expert at developing efficient, scalable, and fault-tolerant server solutions for complex problems. He has extensive experience and skills with Agile processes as well as in Java, JEE, and Scala. He also excels at using open source solutions for projects. Click to continue
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“As a Toptal qualified front-end developer, I also run my own consulting practice. When clients come to me for help filling key roles on their team, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal is the best value for money I've found in nearly half a decade of professional online work.”
Ethan Brooks
CTO @ Langlotz Patent & Trademark Works, Inc.
“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
“Ignacio is one of the most diligent software developers that we have ever worked with—we feel like he's part of the family. He has always been flexible enough to work on our team's schedule and never misses deadlines. Toptal gets you the talent you need, on your timeline, keeping the process very low friction.”
Austin Evarts
CEO @ GoChime
“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
“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
“Toptal has been extremely helpful to us in finding top remote talent. The ratio from interview to hire with Toptal candidates is the highest I've ever experienced in my professional career.”
Philipp Berner
Co-founder and CTO @ KeepSafe
“Our experience with Toptal was very good. We had an open ended development project when we got started and the programmer from Toptal was very helpful, working with us on everything from the top level outline all the way down to development and delivery of functioning code." ”
Michael Milton
VP of Engineering @ SLANTRANGE
“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
“As a growing startup, finding top-notch engineering talent at affordable rates is one of the biggest challenges. After being frustrated with unreliable local contractors in New York, we turned to Toptal. We worked closely with Michal in Poland for 5 months and were thrilled with the results. Michal was an outstanding engineer who communicated flawlessly and took control of our project in ways that far exceeded my expectations. I give Michal and Toptal my highest endorsement and will continue to use and recommend them to anyone looking for software engineering talent.”
David Baker
Founder @ Spins.FM
“I really enjoyed my experience with Toptal. Searching for a developer was both painless and engaging, and the first match was a perfect fit! Toptal is a fantastic way to find talented developers for small or large aspects of your project.”
Willem Shepherd
Creative Director @ Mookieyams
“Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.”
Jason Kulik
Co-Founder @ ProHatch
“The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.”
Ryan Rockefeller
CEO @ Radeeus
“We're a small firm with big dreams. After trying 4 or 5 local or outsourced developers, we were out of options. I'd heard of Toptal, but was worried that my company wasn't big enough for them. After calling them up, I found out that I didn't need to meet any minimum budget and was immediately put in touch with a developer to talk through my problems and goals. A day later, he got back to me with a list of possible solutions. After 9 months and 5 developers, Toptal got me my solution in a single week at a price I could afford.”
Kevin Ramirez
Co-Founder @ SixtyVocab.com
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