Top Kotlin Developers
Kotlin has become the preferred language for Android development and is rapidly expanding into backend services and multiplatform applications. Its concise syntax, null safety, and full interoperability with Java make it a practical choice for teams modernizing existing codebases or building new products from scratch.
Kotlin developers on Clutch are vetted through a verified review process, so you can compare firms based on real client outcomes — not just self-reported credentials. These companies build native Android applications, server-side systems using Ktor or Spring Boot, and cross-platform solutions with Kotlin Multiplatform (KMP). Related directories: Android app development companies, mobile app development companies, and the full Kotlin developers directory.
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UndisclosedUndisclosed2 - 9Aschaffenburg, Germany
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Founded in 2017, Diagonal.Software GmbH is an artificial intelligence firm. The team focuses on Artificial Intelligence and Blockchain and is based in Aschaffenburg, Germany.
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UndisclosedUndisclosed2 - 9
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Latitude Software Consulting is a Melbourne, Australia-based UX design agency. They offer UX/UI Design and cloud consulting & SI and were established in 2015.
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UndisclosedUndisclosed2 - 9
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Small web design agency UPFLOW, is in. The team provides Web Design and Web Development.
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UndisclosedUndisclosed10 - 49
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Shipcrow is an Accounting company. Established in 2015, the firm is based in Zapopan, Mexico. Their team offers Accounting and Fulfillment.
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UndisclosedUndisclosed10 - 49Campinas, Brazil
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Agência Lógica Digital is a Digital Strategy company in Campinas, Brazil. The team specializes in Digital Strategy and Social Media Marketing.
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UndisclosedUndisclosed10 - 49London, England
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The Graphic Alliance LLP is a small London, England-based UX design company. Their services include UX/UI Design and Graphic Design.
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UndisclosedUndisclosed10 - 49London, England
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Pomegranate Media is a small Content Marketing company. They focus on Content Marketing and Digital Strategy and were launched in 1998.
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UndisclosedUndisclosed10 - 49London, England
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Underwaterpistol Ltd is an Email Marketing company launched in 2013. The small team offers Email Marketing and Social Media Marketing.
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UndisclosedUndisclosed10 - 49Hounslow , England
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Founded in 2017, Weblinerz, a small web design agency, is headquartered in Hounslow , England. Their services include Web Design and UX/UI Design.
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UndisclosedUndisclosed10 - 49Edinburgh , Scotland
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Small SEO company Inspire Digital Edinburgh, is headquartered in Edinburgh , Scotland. Their services include Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosed10 - 49Edinburgh , Scotland
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SME Professional is a Digital Strategy company launched in 2009. Their team offers Digital Strategy and Graphic Design.
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UndisclosedUndisclosed10 - 49Bristow, VA
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Resource Metrix is an IT managed services company. In Bristow, Virginia, the team specializes in IT managed services and Accounting.
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UndisclosedUndisclosed10 - 49Amphoe Mueang Chiang Mai, Thailand
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Digital Search Group Limited is a PPC company launched in 2010. Their team specializes in Pay Per Click and Search Engine Optimization.
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UndisclosedUndisclosed10 - 49Kolkata, India
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Ibuildsite is an e-commerce development company. They focus on E-Commerce Development and Pay Per Click and were launched in 2004.
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UndisclosedUndisclosed10 - 49Bengaluru, India
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Siddhrans Technology, a PPC agency, was established in 2016. The agency provides Pay Per Click and Search Engine Optimization, and is small.
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UndisclosedUndisclosed10 - 49Kochi, India
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AdOx Global Pvt.Ltd. Is a SEO agency. Their small team is located in Kochi, India. Their services include Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosed10 - 49East Maitland, Australia
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Branding firm Bottrell Media - Websites & Graphic Design was founded in 2010. The team specializes in Branding and Graphic Design and is headquartered in East Maitland, Australia.
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UndisclosedUndisclosed50 - 249
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Digital Strategy company Usabilla was founded in 2009. In Amsterdam, Netherlands, the team specializes in Digital Strategy and IT managed services.
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UndisclosedUndisclosedFreelancerDelaplane, VA
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XALNIX CORPORATION is a Delaplane, Virginia-based cloud consulting & SI company. Established in 2002, the team offers cloud consulting & SI and Cybersecurity.
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$10,000+$25 - $49 / hr10 - 49Karachi, Pakistan
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See all 1 projectsModelsoft Software Products - Out of Business was a tailored software development company specializing in creating custom software solutions. Feedback highlights their excellent communication and timely delivery, with 100% of reviewers mentioning milestones being achieved on time. However, 50% of reviewers noted a need for improved documentation.
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UndisclosedUndisclosed2 - 9Ciudad de México, Mexico
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IQCSV, a small IT strategy consulting company, is located in Ciudad de México, Mexico. Their services include IT strategy consulting and Business Consulting.
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UndisclosedUndisclosed2 - 9Amsterdam, Netherlands
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Launched in 2008, Phusion B.V. Is an IT managed services company. The small team focuses on IT managed services and IT strategy consulting.
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UndisclosedUndisclosed2 - 9Salmiya, Kuwait
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Established in 2014, Westoweb is a branding agency. Their services include Branding and Social Media Marketing.
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UndisclosedUndisclosed2 - 9San Francisco, CA
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Located in San Francisco, California, SyCo Media Inc. Is a small social media marketing company. Their services include Social Media Marketing and Email Marketing.
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UndisclosedUndisclosed2 - 9
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Asgard Technologies Company is an Atlanta, Georgia-based social media marketing company. The team focuses on Social Media Marketing and Mobile App Development.
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UndisclosedUndisclosed2 - 9Coimbatore, India
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Headquartered in Coimbatore, India, Future Forward Technologies (FFT) is a SEO services firm. They specialize in Search Engine Optimization and Mobile App Development and were established in 2016.
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UndisclosedUndisclosed10 - 49Chadstone, Australia
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ASENZ Australia is an Email Marketing company. They specialize in Email Marketing and Search Engine Optimization and are located in Chadstone, Australia.
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UndisclosedUndisclosed10 - 49Chadstone, Australia
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3 Phase Marketing is a Chadstone, Australia-based Email Marketing company. They provide Email Marketing and Search Engine Optimization and were founded in 2015.
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UndisclosedUndisclosed10 - 49Southbank, Australia
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IDM Australia, an e-commerce development firm, is headquartered in Southbank, Australia. They specialize in E-Commerce Development and Search Engine Optimization.
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UndisclosedUndisclosed10 - 49Adelaide, Australia
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Advertising company Virtual Ad Agency is based in Adelaide, Australia. Founded in 2009, the team offers Advertising and Digital Strategy.
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UndisclosedUndisclosed10 - 49Jolimont, Australia
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Launched in 1998, BirdBrain, a small branding firm, is located in Jolimont, Australia. Their team provides Branding and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9
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Marquetable, a Content Marketing company, was established in 2016. The team focuses on Content Marketing and Search Engine Optimization.
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UndisclosedUndisclosed2 - 9Fitzroy, Australia
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Fat Digital Marketing is a SEO services firm. Established in 2014, the firm is located in Fitzroy, Australia. Their team specializes in Search Engine Optimization and Web Design.
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UndisclosedUndisclosed2 - 9Prahran, Australia
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Based in Prahran, Australia, Collab Agency is a small Content Marketing company. Their services include Content Marketing and Digital Strategy.
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UndisclosedUndisclosed2 - 9Norwood, Australia
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Established in 2017, Prestige Social Media Agency is a small Digital Strategy company. Their services include Digital Strategy and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Adelaide, Australia
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Headquartered in Adelaide, Australia, Lightbulb Digital is a small Digital Strategy company. The team focuses on Digital Strategy and Marketing Strategy.
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UndisclosedUndisclosed2 - 9Campinas , Brazil
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Contentsys is a Campinas , Brazil-based Digital Strategy company. They specialize in Digital Strategy and Social Media Marketing and were launched in 2009.
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UndisclosedUndisclosed2 - 9Campinas , Brazil
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Founded in 2016, LBM Digital Marketing is an Advertising company. The company focuses on Advertising and Branding.
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UndisclosedUndisclosed2 - 9CAMPINAS, Brazil
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Espaconet Web Solutions is a Digital Strategy company. Founded in 1995, their team offers Digital Strategy and Email Marketing.
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UndisclosedUndisclosed2 - 9
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Digital Strategy company Web2View Web Development was launched in 2014. The firm provides Digital Strategy and Social Media Marketing, and is small.
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UndisclosedUndisclosed2 - 9Campinas, Brazil
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Based in Campinas, Brazil, Alavanka Digital is a web design company. Their services include Web Design and Digital Strategy.
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UndisclosedUndisclosed2 - 9London, England
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Wibbly Wobbly Website is a web design company launched in 2018. The company focuses on Web Design and UX/UI Design.
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UndisclosedUndisclosed2 - 9LONDON , England
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The Sheriden Charles Partnership Ltd, a web design agency, was launched in 2011. The team provides Web Design and Email Marketing and is located in LONDON , England.
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UndisclosedUndisclosed2 - 9Manchester , England
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Headquartered in Manchester , England, Manchester Made is a graphic design agency. The team offers Graphic Design and Print Design.
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UndisclosedUndisclosed2 - 9Birmingham , England
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Established in 2009, 1UP, a small web design company, is based in Birmingham , England. Their team focuses on Web Design and Print Design.
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UndisclosedUndisclosed2 - 9Birmingham , England
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Biz Midlands is a SEO services firm. They are headquartered in Birmingham , England and have small team of experts. Their services include Search Engine Optimization and Social Media Marketing.
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UndisclosedUndisclosed2 - 9Liverpool , England
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KliKx Designs is a small Advertising company launched in 2015. Their team focuses on Advertising and Branding.
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UndisclosedUndisclosed2 - 9Liverpool , England
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Attach Digital, a web design agency, is headquartered in Liverpool , England. Their services include Web Design and Digital Strategy.
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UndisclosedUndisclosed2 - 9Liverpool, England
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Stylographic Design is a branding company established in 2009. Their services include Branding and Graphic Design.
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UndisclosedUndisclosed2 - 9Wigan , England
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Founded in 2013, Sam Heaton, a small e-commerce development firm, is based in Wigan , England. Their services include E-Commerce Development and Search Engine Optimization.
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List of the Top 15 Kotlin Development Services
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$50,000+$50 - $99 / hr50 - 249Brno, Czech Republic
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
15% Web Development75% Mobile App Development10% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
35% Custom Software Development25% Kotlin5% Web Development40% Mobile App Development20% Other -
$75,000+$50 - $99 / hr50 - 249Wrocław, Poland
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39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Custom Software Development40% Kotlin80% Mobile App Development10% Other -
$25,000+$25 - $49 / hr250 - 999New York, NY
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40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
45% Mobile App Development55% Other -
$50,000+$25 - $49 / hr250 - 999Warszawa, Poland
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40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Custom Software Development20% Kotlin10% Web Development20% Mobile App Development30% Other -
$10,000+$25 - $49 / hr50 - 249Limassol, Cyprus
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40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Custom Software Development30% Kotlin50% Mobile App Development10% Other -
$10,000+$25 - $49 / hr50 - 249Khmel'nyts'kyi, Ukraine
Ability to deliver
37.1/40.017.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Custom Software Development50% Kotlin40% Mobile App Development30% Other -
$25,000+$50 - $99 / hr50 - 249Wrocław, Poland
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Mobile App Development20% AR/VR Development40% Other -
$25,000+$50 - $99 / hr50 - 249Hollywood, FL
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% Custom Software Development30% Kotlin10% Web Development60% Mobile App Development20% Other -
$25,000+$50 - $99 / hr50 - 249Karlín, Czech Republic
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38.8/40.019.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
30% Web Development60% Mobile App Development10% Other -
$100,000+$50 - $99 / hr250 - 999San Francisco, CA
Ability to deliver
38/40.018/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Web Development20% Mobile App Development70% Other -
$25,000+$25 - $49 / hr250 - 999Lakeville, MN
Ability to deliver
37/40.017.2/20 Reviews9.9/10 Clients & Experience9.9/10 Market PresenceService focus
15% Custom Software Development30% Kotlin10% Web Development10% Mobile App Development15% Enterprise App Modernization50% Other -
$10,000+< $25 / hr50 - 249New Delhi, India
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
25% Custom Software Development23% Kotlin15% Web Development25% Mobile App Development35% Other -
$25,000+$25 - $49 / hr250 - 999Irving, TX
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Web Development30% Mobile App Development60% Other -
$25,000+$100 - $149 / hr10 - 49Montréal, Canada
Ability to deliver
37.3/40.017.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Custom Software Development50% Kotlin20% Web Development40% Mobile App Development20% Other -
$5,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development60% Mobile App Development30% Other -
$50,000+$100 - $149 / hr50 - 249Los Angeles, CA
Ability to deliver
36/40.016.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development55% Kotlin40% Mobile App Development30% AR/VR Development10% Other -
$25,000+$25 - $49 / hr50 - 249Vinnytsia, Ukraine
Ability to deliver
38.6/40.019/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
30% Web Development70% Mobile App Development -
$5,000+$25 - $49 / hr50 - 249Cluj-Napoca, Romania
Ability to deliver
39/40.019.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development50% Mobile App Development30% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
37/40.017.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
50% Custom Software Development40% Kotlin50% Mobile App Development -
$10,000+$50 - $99 / hr50 - 249Cluj-Napoca, Romania
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
45% Web Development45% Mobile App Development10% Other -
$50,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
36.8/40.017.4/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
15% Web Development65% Mobile App Development20% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.1/40.018.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
35% Web Development35% Mobile App Development30% Other -
$10,000+$50 - $99 / hr250 - 999Greenville, SC
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Custom Software Development10% Kotlin60% Mobile App Development20% Other -
$5,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
38.9/40.020/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
60% Custom Software Development15% Kotlin40% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Custom Software Development15% Kotlin50% Mobile App Development40% Other -
$10,000+$50 - $99 / hr50 - 249Denver, CO
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Web Development60% Mobile App Development30% Other -
$50,000+$50 - $99 / hr250 - 999Tallinn, Estonia
Ability to deliver
38.7/40.019.8/20 Reviews9.1/10 Clients & Experience9.8/10 Market PresenceService focus
70% Custom Software Development15% Kotlin10% Mobile App Development20% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
15% Custom Software Development15% Kotlin80% Mobile App Development5% Other -
$1,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
38.6/40.019.2/20 Reviews9.6/10 Clients & Experience9.8/10 Market PresenceService focus
10% Custom Software Development11% Kotlin15% Web Development15% Mobile App Development60% Other
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Kotlin Development FAQs
Kotlin developers write applications using JetBrains' Kotlin programming language. On the Android side, they build native mobile applications using Jetpack Compose, Android SDK APIs, and modern architecture patterns like MVVM or MVI.
On the backend, Kotlin developers build server-side APIs and microservices using Ktor or Spring Boot. Furthermore, an emerging specialty is Kotlin Multiplatform (KMP), where developers write shared business logic that compiles to both Android and iOS.
Clutch’s verified pricing data shows that a focused Android app build typically ranges from $25,000 – $150,000, depending on factors like its complexity, features, and backend requirements.
Meanwhile, hourly rates for Kotlin development firms range from $25 – $149 per hour, with firms in Eastern Europe and Latin America often on the lower end and North American or Western European firms on the higher end.
Dedicated Kotlin shops maintain deeper expertise than generalist firms that work across many languages. They stay current with JetBrains' release cycle, know which libraries are production-stable versus experimental, and have established patterns for common challenges like coroutine exception handling or Compose state management. This depth typically translates to faster delivery, cleaner architecture, and lower long-term maintenance costs.
Start by outlining your project’s specific requirements and assessing their technical fit; confirm the firm has production Kotlin experience rather than Java teams that have adopted Kotlin syntax superficially.
Then, ask to see Kotlin-specific code samples or open-source contributions, and inquire about their familiarity with Kotlin coroutines, Flow, and Kotlin Multiplatform if relevant. Take a moment to thoroughly review their Clutch profiles and client ratings for projects similar to yours in complexity and industry.
Be cautious of firms that list Kotlin as a skill but whose case studies reference only Java or legacy Android development. Other red flags to watch out for include no mention of testing practices, an inability to discuss architectural patterns like Clean Architecture or MVI, and vague answers about how they handle Kotlin version migrations and library compatibility.