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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Clients Rate Toptal Kotlin Developers4.6 / 5.0on average across 59 reviews. (Last Updated: )

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Hire Freelance Kotlin Developers and Engineers

View Daniel

Daniel Ramteke

Freelance Kotlin Developer

United StatesToptal Member Since January 28, 2019

Daniel has several years of experience developing for iOS and servers. He's contributed to several apps on the app store. Daniel values teamwork, communication, clean code, and getting things done.

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Sourabh Verma

Freelance Kotlin Developer

IndiaToptal Member Since July 21, 2019

Sourabh is an experienced developer with a broad and versatile skill set. His eight years of experience with mobile and back-end development enables him to help startups prototype their ideas quickly and efficiently. He has worked on a variety of products ranging from content management and publishing, eCommerce, audio processing, messaging, real-time tracking, and IoT.

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Guillaume Laurent

Freelance Kotlin Developer

FranceToptal Member Since October 21, 2018

Guillaume has been a software engineer for over two decades which initially began with an extensive and lengthy experience on Unix/Linux systems and C++. He then moved onto the macOS/iOS ecosystem in 2011 because it felt more vibrant and interesting. Along with a wealth of professional experience, Guillaume brings pragmatism and excellent organizational and communication skills.

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Armin Mehinovic

Freelance Kotlin Developer

Bosnia and HerzegovinaToptal Member Since January 12, 2018

Along with an iOS developer certification from the IT Academy in Belgarde, Armin is a professional, experienced QA engineer with a demonstrated history of working in the information technology and services industry. He's particularly skilled in Swift, iOS, Xcode, Android Studio, IntelliJ, NetBeans, Java, and automation. Where Armin shines is in the establishment and optimization of automation processes to make them more effective and efficient.

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Ivan Markusi

Freelance Kotlin Developer

CroatiaToptal Member Since April 18, 2019

Ivan is a product-oriented software engineer with broad experience in the development process of apps for Android and iOS eco-systems. He's crafted apps for a variety of clients from small business owners to large mobile network operators and banks. Clean, testable, and efficient codebase is what drives him, as well as a happy and successful client, an indicator of high-quality work.

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Tomasz Czura

Freelance Kotlin Developer

PolandToptal 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 and technologies, extending his skill set beyond Android to tasks leveraging React or iOS. 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.

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Krzysztof Makowski

Freelance Kotlin Developer

PolandToptal Member Since August 20, 2015

Krzysztof is a software developer with several years of experience—mostly in Java back-end projects, but he's also familiar with front-end and DevOps tech. He's worked in all sorts of industries (finance and tech among others) with notable clients like Sony, ING Bank, Tesco Bank, Payworks (now Visa). Along with mentoring junior developers and promoting Agile methodology, Krzysztof has worked on analysis, architecture design, and test automation.

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View Miguel

Miguel Prieto

Freelance Kotlin Developer

ParaguayToptal Member Since August 10, 2015

Miguel describes his job as turning ideas and requirements into production-ready, maintainable, and scalable code that runs within a well-engineered environment. In his years of experience as a developer, architect, and consultant, he has worked in different projects with many technologies. Regardless of the task at hand or the technology, he embraces the challenges of software development with professionalism and enthusiasm.

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Aleksandar Ilic

Freelance Kotlin Developer

SerbiaToptal Member Since February 4, 2014

Aleksandar is a software engineer with 7+ years of professional experience in Android. He is able to build complex Android applications from start to finish. He is an open-minded individual with excellent strategic, analytical and empathic skills and with great passion for challenges.

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Gangadharan S. Kuruvath

Freelance Kotlin Developer

IndiaToptal Member Since June 12, 2019

Ganga has 17 years of experience developing and architecting applications in the cable and telecommunication sector, of which the last 6+ years is in native Android development. He has worked with companies like Comcast Cable, British Telecomm, Texas Instruments, and DHL. His strengths include focusing on the end user, aligning with the clients' vision and goals, adapting to technology innovations, and his experience in the E2E product lifecycle.

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

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Building a cross-platform app to be used worldwide
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Testimonials

Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a start up, they are our secret weapon.

Brantley Pace, CEO & Co-Founder

Tripcents

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

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

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

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

We used Toptal to hire a developer with extensive Amazon Web Services experience. We interviewed four candidates, one of which turned out to be a great fit for our requirements. The process was quick and effective.

Abner Guzmán Rivera, CTO and Chief Scientist

Photo Kharma

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

Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it.

André Fischer, CTO

POSTIFY

We needed a expert engineer who could start on our project immediately. Simanas 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. Toptal is now the first place we look for expert-level help.

Derek Minor, Senior VP of Web Development

Networld Media Group

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.

Jeremy Wessels, CEO

Kognosi

We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.

Ryan Morrissey, CTO

Applied Business Technologies, LLC

I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.

Pietro Casoar, CEO

Ronin Play Pty Ltd

Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!

George Cheng, CEO

Bulavard, Inc.

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.

In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered!

Lara Aldag, CEO

Higgle

Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver. I would definitely recommend their services to anyone looking for highly-skilled developers.

Michael Gluckman, Data Manager

Mxit

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 at the level of professional commitment each of them has demonstrated. For those looking to work remotely with the best engineers, look no further than Toptal.

Laurent Alis, Founder

Livepress

Toptal makes finding qualified engineers a breeze. We needed an experienced 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

We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.

Franco Arda, Co-Founder

WhatAdsWork.com

Toptal offers a no-compromise solution to businesses undergoing rapid development and scale. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.

Greg Kimball, Co-Founder

nifti.com

How to Hire Kotlin Developers through Toptal

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right Kotlin developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new Kotlin developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

FAQs

  • How are Toptal Kotlin developers different?

    At Toptal, we thoroughly screen our Kotlin developers to ensure we only match you with talent of the highest caliber. Of the more than 100,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You'll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs. Start now.

  • Can I hire Kotlin developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a Kotlin developer within 48 hours of signing up. Start now.

  • What is the no-risk trial period for Toptal Kotlin developers?

    We make sure that each engagement between you and your Kotlin developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you're completely satisfied with the results, we'll bill you for the time and continue the engagement for as long as you'd like. If you're not completely satisfied, you won't be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial. Start now.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire in under 2 weeks and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Featured Toptal Kotlin Publications

Boldizsar Akos Mezei
EngineeringBack-end

Using Kotlin for Back-end Development: A Quick Overview

by Boldizsar Akos Mezei
Tomasz Czura
EngineeringTechnology

Discover the Benefits of Android Clean Architecture

by Tomasz Czura
Abhishek Tyagi
EngineeringMobile

Better Android Apps Using MVVM with Clean Architecture

by Abhishek Tyagi
View More Kotlin Articles

Top Kotlin Developers are in High Demand.

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