Hire the top 3% of freelance Grok developers.

Toptal is a marketplace for top Grok developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal Grok freelancers for their mission critical software projects.
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Hire Grok developers and engineers

Joshua Ballanco, United States

Member since November 22, 2013
Joshua is an architect, engineer, and scientist with experience building large-scale systems dealing with everything from massive amounts of video data to heavy web traffic to integration with a wide array of components in an SOA infrastructure. He's worked for Apple and AOL, and also led a group of 20+ consultants. Click to continue

Boris Shemigon, United States

Member since June 23, 2012
Boris is a senior web developer with over 10 years of experience. He is proficient in Python (with Django) and JavaScript (with jQuery). He is also experienced in a variety of databases, VCSs, operating systems, platforms, and technologies. Click to continue

Josip Medic, Croatia

Member since January 17, 2014
Josip is a team player with an open and communicative nature and a strong passion for building new systems. He is devoted to writing bug-free, maintainable, and scalable code, and is constantly educating himself about new technologies. He uses Agile techniques and works well under pressure. Click to continue

Gleb Kuznetsov, United States

Member since January 9, 2014
Gleb is a software engineer with experience in front and back-end web development and scientific computing. He works extensively in machine learning and bioinformatics. He has a BS and MEng in EECS from MIT, and worked at Google from 2011-2012. He is now starting a PhD in Biophysics at Harvard. Click to continue

Ihor Solonyi, Ukraine

Member since April 5, 2014
Ihor has a talent for making internal and external services and prides himself on developing clean, readable code. He has a talent for Python and has done a good deal of development with API. His confidence and desire to travel and meet new people will make him an asset to any team. Click to continue

Luís Martinho, Portugal

Member since October 30, 2011
As an entrepreneur, Luís understands the importance of proactivity and results, and has learned the meaning of responsibility and accountability. He is more of a generalist than a specialist, though he loves the detail and deep understanding that comes from intense focus and work on development projects. Click to continue

Renan de Azevedo, Brazil

Member since June 15, 2013
Software developer with over 6+ years of experience build high-performance high-scalable applications, with expert-level in Ruby and Javascript, besides hands-on experience in a broad variety of languages and technologies including Node.JS, Python, PHP, Haskel and more. Specialities: Ruby, Node.JS and Frontend consulting, MVP, Agile methodologies, UX, SasS. Click to continue

Steven Yang, United States

Member since October 8, 2013
As a full-stack web developer, Steven does everything from tweaking UI interfaces in Sketch to designing scalable back-end architectures. He also tests and transforms ideas into quality products as an entrepreneur. He enjoys adapting to new technologies and studying fundamental ideas. Click to continue

Alexis Gallagher, United States

Member since March 11, 2014
Alexis is a senior iOS engineer, who loves intuitive, beautiful UI. He is a back end engineer, UX designer, loves mathematics and theater. He is highly creative, collaborative, reliable, with professional experience in numerous areas (science, finance, etc.). And a scientist by training. Click to continue

Adil Aliyev, Azerbaijan

Member since January 29, 2014
Adil is a software engineer with the ability to develop efficient software solutions. He can adapt to different kinds of projects and teams quickly. He is comfortable as a single developer, team leader, or software project manager. He has experience working with a wide variety of technologies. Click to continue
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CEO @ ModernStat Labs
“While looking for a high-level Python/Django developer, I found Toptal via a simple Google search, and that was a stroke of luck for our company. We needed a expert engineer who could start on our project immediately as we had a tight deadline. We were introduced to Simanas and immediately knew he was a great choice who had already been vetted... and he 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, and we are extremely happy with the results. Toptal is now the first place we look for expert-level help.”
Derek Minor
Senior VP of Web Development @ NetWorldMediaGroup
“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
“Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.”
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CEO @ Kognosi
“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
“I am more than pleased with the experience with Toptal. It may cost a little more, but because they pre-qualify and hand-pick the professional best suited for the job, it's well worth it. The professional I got to work with was on the phone (Skype) with me within a couple hours. I knew after discussing my project with him that he was the candidate I wanted to do the job, and I hired him immediately... and he wasted no time in getting to my project. He completed the job and went the extra mile to clean up older, messy code and even added some great design elements that enhanced our overall look. I would highly recommend Toptal to anyone needing to hire a professional. Great company. Great service. Thank you, Toptal.”
Paul Fenley
Director @ K Dunn & Associates
“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
“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
“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
“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
“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 @ Anjna Patient Education
“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
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