Hire the top 3% of freelance
Kotlin developers.

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

Tibor Kaputa, Slovakia

Member since September 22, 2015
Tibor is a skilled developer with more than eight years of experience in Java, JavaScript, C++, and others. He has a strong background in creating Android applications that look great, feel smooth, and are stable. He has experience in computer administration specifically MySQL, and UNIX/ Linux servers. He always tries to use opensource code whenever possible. He is detail oriented and enjoys undertaking new programming challenges. Click to continue

Johan Hernandez, Colombia

Member since January 3, 2012
Johan is a mobile app and cloud back-end developer with over 15 years of experience. He's been telecommuting for startups in the USA since 2010. He has worked with enterprise stacks for a number of years, but more recently his primary focus has been on building native apps for mobile and desktop (Mac, iOS, Android and Windows) using Swift, Objective-C, Java, Kotlin, and C#. He also builds his own RESTful back-ends with Rails, Node, and Golang. Click to continue

Tomasz Czura, Poland

Member since November 29, 2015
Tomasz is an Android developer who specializes in creating user-friendly and useful applications with the newest technologies. He enjoys experimenting with different languages, technologies, and electronics. Tomasz makes it a personal goal to ensure the client is fully satisfied, and often likens the process of software development to writing a good, interesting novel. Click to continue

Ivan Dimoski, Macedonia

Member since November 26, 2013
Ivan is an accomplished Android developer and consultant with over 4 years of experience in developing user friendly applications for the international market. He has excellent analytical and problem solving skills and enjoys interacting with clients to ensure specific and business-critical requirements are met. Click to continue
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“We had a wonderful experience with our Toptal consultant. He was very reliable and punctual, delivering excellent work on a budget—we will certainly be using him again!”
Barbara Karpf
President @ DecoratorsBest
“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
“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 @ HarborSI
“We've actually remodeled the way we do our work to take advantage of Toptal's capabilities. We develop pseudo code with some code fragments and send to our Toptal developer with a specific task set. The work is then further processed by the next group of Toptal engineers. It's been very efficient and we've seen a massive improvement in our development speed.”
William North
CTO & Co-Founder @ Swizly
“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
“We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. It was done quickly for a specific need, and it's been great. It simply would not have been possible via any other platform.”
Franco Arda
Co-Founder @ WhatAdsWork.com
“Toptal makes finding qualified engineers a breeze. We needed an experience ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. After making our selection, the engineer was online immediately and hit the ground running. It was so much faster and easier than having to discover and vet candidates ourselves.”
Jeff Kelly
Co-Founder @ Concerted Solutions
“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, it was at a fair price, and it came with a much appreciated, risk-reducing trial period.”
John Olsen
Director @ Bingo Solutions
“Our Toptal contractor quickly came up to speed on our process and became an integrated part of our team. We look forward to growing together!”
Vitaly M. Golomb
CEO @ Keen Systems
“Toptal’s ability to rapidly match our project with the best developers was just superb! The developers have become part of our team, and I’m amazed of the level of professional commitments each one of them have demonstrated. For those looking to work remotely with the best engineers, look no further. Thank you, Toptal.”
laurent Alis
Founder @ Livepress
“We've been incredibly pleased with our experience working with Toptal thus far. Their team worked quickly and efficiently to isolate the needs of our project, and they paired us with an appropriate developer within a couple days who we quickly contracted after a great interview. The work performed on our project was top-notch, and we can’t wait to make use of Toptal’s resources again.”
Ryan Staake
Owner @ Pomp&Clout
“Prior to working with Toptal, we had a very difficult time finding qualified developers. The Toptal team worked with us to find a developer that was a great fit in terms of technical skills, culture, and finances. Our Toptal developer is four months into this project and we are still impressed with the attention to detail and technical prowess that he brings to our team.”
Justin Fister
Chief Scientist @ PaperRater
“We were extremely impressed with both Toptal and our developer, Bojan. They were extremely professional and flexible with our schedule. On multiple occasions, we needed to alter our timeline and they never hesitated to accommodate us. Bojan was communicative and delivered what we asked for on time and exactly to spec. I know that should we need additional work, will surely be looking to hire Bojan and Toptal again. ”
Stephen Vasallo
Co-founder @ Bubble
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