Hire the top 3% of CTOs.

Toptal is a marketplace for top CTOs. Top companies and start-ups choose Toptal senior engineers for their mission critical software projects.

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Hire Freelance CTO Developers and Engineers

Tomislav Capan, Croatia

Freelance CTO Developer at Toptal since February 12, 2013
Tomislav is a software engineer, technical consultant, and architect with over 10 years of experience. He specializes in full-stack, highly scalable, real-time JavaScript and Node.js applications, with past experience in C#, Java, and Ruby. He is an agile Kanban practitioner who loves to collaborate on development projects. Click to continue

Ken Roe, United States

Freelance CTO Developer at Toptal since October 2, 2014
Ken is a highly skilled Software Engineer with over twenty years experience. He has been running a small company that develops and sells mobile apps, and is especially good at Python, Objective-C, and Swift. He is currently working on a PhD in Computer Science at Johns Hopkins University. Click to continue

Ken Whaley, Russia

Freelance CTO Developer at Toptal since September 6, 2012
Ken is a top architect, engineer, and developer with over 30 years of experience in the field. He has a proven ability to understand, optimize, enhance, and create from scratch significant software tools and workflows with large user bases that greatly magnify productivity for large groups of engineers. Ken is eager to take on new challenges and has done so with teams of all sizes and compositions. Click to continue

Michael Truog, United States

Freelance CTO Developer at Toptal since January 28, 2011
Michael is a top architect, engineer, developer, and entrepreneur with a proven ability to develop efficient, scalable, and fault-tolerant server solutions for complex problems. He has extensive experience and skills with all levels of software and architecture. Click to continue

Mark Wong-VanHaren, Spain

Freelance CTO Developer at Toptal since March 22, 2013
Mark is an entrepreneur, engineer, CTO, and artisan with decades of startup experience, including co-founding Excite.com. He makes complex problems simple with expressive, maintainable code. He believes in building small, well-tested, functional pieces, loosely joined by a well-documented contract. Click to continue

Igor Ostriz, Croatia

Freelance CTO Developer at Toptal since April 26, 2012
Igor is a lead iOS developer with several years of experience programming fault-tolerant systems ranging from working with telecoms to building systems that monitor radioactive emissions. He has worked with a broad range of technologies and also took lead roles as an architect. Click to continue

Richard Rozsa, Netherlands

Freelance CTO Developer at Toptal since June 12, 2013
Richard Rozsa offers a vision of data as a self formatting entity. For more than 30 years, he's delivered top quality technical architecture, programming, testing and solutions for complex problems--on-time and within budget. He's extremely flexible and able to integrate as a standalone freelancer or within teams. Click to continue

Ted Cohn, Puerto Rico

Freelance CTO Developer at Toptal since February 1, 2014
Ted has 25+ years as a senior architect, technologist, developer, entrepreneur, and CTO. He led Barnes & Noble's Nook team in Palo Alto, created Pleo the dinosaur, Foodiebot chatbot ordering system and worked for Silicon Valley giants like Apple, Excite, and NeXT. He can develop new concepts, join/lead teams, and bring order to chaos. He loves innovating and delivering incredible products. Superb communication and presentation skills. Click to continue
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Testimonials
“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
“Toptal has been an incredible source of amazing software engineering talent. The contractors who have worked with us have been top notch, spoke perfect English, and worked superbly with our team. We recommend Toptal without any reservations!”
Vineet Singal
Co-Founder @ CareMessage
“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
“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 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
“My business relationship with Toptal has been nothing short of terrific. From reviewing my project with their team to choosing a highly-talented developer, and all the way through releasing our application, it has been an incredibly smooth and successful experience.”
Gary Craig
Senior Analyst @ NetApp
“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
“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
“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
“We've been very pleased with our experience working with Toptal. Their team was incredibly helpful in helping us find 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
“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
“Andrea is doing an amazing job. I don't think we could have gotten a better person. He is fun to work with, he thinks out of the box, and he is extremely knowledgeable in what he is going. He not only does an excellent job, he also helps our company to differentiate our business model further (e.g. making our app offline-capable). I would recommend Andrea as well as Toptal any time to any friend.”
Pascal Girardat
Co-Founder / CEO @ Lifestage Solutions AG
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VP of Talent Operations