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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$25,000+$100 - $149 / hr10 - 49Hamburg, Germany
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See all 9 projectscc.systems GmbH is a bespoke software development company known for delivering tailored software solutions that cover a wide array of needs, from enterprise infrastructure modernization to mobile and web app development. Across their reviews, 100% of clients express satisfaction with their strong focus on customer orientation, efficient project management, and technical excellence. The company consistently receives commendations for their reliability and proactive approach.
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$1,000+< $25 / hr50 - 249Ahmedabad, India
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See all 52 projectsApp Ideas Infotech Pvt Ltd | Mobile App Development Company specializes in Custom Software Development, offering services like tailored software and full-stack development. They consistently deliver exceptional results, as evidenced by 100% positive feedback, with clients highlighting their excellent communication, problem-solving skills, and project management. Approximately 75% of reviewers commend their ability to meet tight deadlines and provide innovative solutions.
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$25,000+$150 - $199 / hr10 - 49Needham, MA
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See all 18 projectsRocket Farm Studios is a Custom Software Creation company specializing in Full Stack Software Development and tailored solutions. With a strong focus on client collaboration, 100% of reviewers highlight their strategic thinking and project management skills, while over 80% emphasize their ability to integrate seamlessly into teams, ensuring successful project outcomes and client satisfaction.
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$5,000+< $25 / hr10 - 49Jaipur, India
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See all 24 projectsAppquipo LLP is a custom software development company specializing in tailored software creation and full-stack software development. The reviews highlight their proficiency in AI and machine learning, with 100% positive feedback on their technical expertise and project management skills. Clients appreciate their responsiveness, clear communication, and ability to deliver end-to-end software solutions, often resulting in enhanced efficiency and user satisfaction.
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$1,000+$25 - $49 / hr50 - 249Karachi, Pakistan
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See all 20 projectsvativeApps is a bespoke software development company specializing in custom software creation. They are highly praised for their technical expertise, customer service, and budget-friendly pricing. Clients highlight their ability to exceed expectations and deliver on time, with 100% of reviews emphasizing their effective communication and project management skills. Additionally, all reviewers express satisfaction with their overall experience, recommending them for future projects.
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$5,000+< $25 / hr50 - 249Indore, India
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See all 4 projectsIdeal It Techno Pvt. Ltd. is a custom software development company known for its responsive and communicative approach. Feedback highlights their efficiency and success in delivering software engineering projects, though some noted extended timelines. Approximately 100% praised their communication, with 50% mentioning timely delivery and effective project management.
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$1,000+$50 - $99 / hr10 - 49Austin, TX
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See all 37 projectsUwindi is a web development and digital solutions company specializing in creating custom websites, UI/UX design, and platform development. Across multiple reviews, 100% of clients praised their project management, timely delivery, and ability to align with business goals. Uwindi is noted for its attention to detail, customer focus, and delivering user-friendly, scalable solutions tailored to the unique needs of various industries.
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$25,000+$50 - $99 / hr10 - 49București, Romania
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See all 11 projectsUP2DATE Software is a bespoke software development company specializing in tailored solutions, including custom software creation and full-stack software development. The overall feedback across reviews is overwhelmingly positive, with 100% of clients highlighting their timely delivery and professional approach, and nearly 75% noting their strong technical expertise and ability to understand business needs effectively.
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$10,000+$25 - $49 / hr50 - 249Mumbai, India
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See all 52 projectsUnico Connect is a bespoke software development company recognized for its expertise in custom software creation and end-to-end software development. The reviews highlight a consistent theme of excellent project management and clear communication, with 100% of reviewers expressing satisfaction with the timely delivery and responsiveness. Unico Connect's ability to rapidly understand systems and provide solutions is frequently commended, notably enhancing system performance and reducing costs.
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$25,000+$25 - $49 / hr250 - 999Ahmedabad, India
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See all 49 projectsHidden Brains InfoTech is a Custom Software Development company that excels in delivering tailored, end-to-end software solutions across diverse industries. Reviewers highlight their strong project management, innovative solutions, and commitment to quality, with approximately 90% of feedback being positive. Their expertise in software engineering and flexibility in adapting to client needs are consistently praised by clients.
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$10,000+$50 - $99 / hr10 - 49Vilnius, Lithuania
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See all 10 projectsLogicnord is a bespoke software development company specializing in custom software creation and end-to-end software development. Across reviews, clients highlight their technical quality, proactive communication, and ability to deliver projects on time. Approximately 100% of reviews emphasize their strong project management and alignment with business needs, with minor suggestions for improved initial planning discussions.
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$1,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 16 projectsTechanzy Limited is a Bespoke Software Development company specializing in Custom Software Creation, including full-stack and end-to-end software engineering. The reviews are overwhelmingly positive, with 100% of clients praising their deep technical expertise, responsiveness, and ability to deliver projects on time and within budget, resulting in successful engagements with excellent outcomes.
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$10,000+$25 - $49 / hr50 - 249Tracy, CA
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See all 19 projectsTravancore Analytics is a bespoke software development company known for its technical expertise and responsiveness. Their services encompass full stack and end-to-end software development, frequently praised for aligning with client requirements. Reviews indicate a 100% satisfaction rate with their deliverables, often highlighting their effective project management and communication skills. Additionally, 50% of reviewers commend their budget-friendly pricing and alignment with company values.
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$5,000+$25 - $49 / hr10 - 49Boulder, CO
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See all 16 projectsOnPath Testing is a bespoke quality assurance and testing company that specializes in tailored software development solutions. Across their reviews, 100% of clients praised their ability to customize services and integrate seamlessly with internal processes, while 67% noted their effective project management and responsiveness. However, minor feedback mentioned occasional delays in adapting to evolving customer requirements.
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$10,000+$50 - $99 / hr250 - 999Brno, Czech Republic
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See all 8 projectsARTIN is a bespoke software development company offering tailored software solutions and end-to-end software engineering services. The company has received overwhelmingly positive feedback, with reviewers highlighting their professionalism, technical expertise, and effective project management. Approximately 90% of reviews commend ARTIN's ability to deliver high-quality custom software solutions, while 75% emphasize their strong communication and commitment to client success.
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$10,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 135 projectsTrigma is a custom software development company known for delivering tailored software solutions across various industries. With a strong emphasis on AI integration and bespoke software development, Trigma has received overwhelmingly positive feedback, with 100% of reviewers praising their technical expertise and ability to meet project deadlines. Reviewers consistently highlight Trigma’s effective communication, project management, and client-centric approach.
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$1,000+$50 - $99 / hr250 - 999Newark, DE
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See all 14 projectsSynoviq is a bespoke software development company specializing in end-to-end software engineering solutions, including custom software creation and tailored ERP systems. Across their reviews, 100% of clients commend Synoviq's strong technical expertise and effective project management, with notable improvements in operational efficiency highlighted in 73% of feedback. Their focus on customer needs and proactive support is consistently praised.
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$25,000+$50 - $99 / hr10 - 49Murcia, Spain
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See all 3 projectsZapp Studio is a Custom Software Creation company specializing in full stack and tailored software development, with a strong emphasis on AI integration and API connectivity. Nearly 100% of the feedback is positive, highlighting their exceptional project management, technical expertise, and ability to consistently meet deadlines and stay on budget across approximately 40 different projects.
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$10,000+< $25 / hr50 - 249Noida, India
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See all 27 projectsScalaCode is a custom software creation company specializing in full-stack and end-to-end software development. Their reviews reveal a high satisfaction rate, with approximately 95% of clients praising their tailored software development and effective project management. Clients consistently highlight their impressive ability to integrate complex systems and align technological solutions with business goals, while areas for improvement mostly concern minor issues like documentation or proactive reporting.
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$5,000+$50 - $99 / hr2 - 9Timișoara, Romania
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See all 7 projectsTMZ Software is a Custom Software Development company that specializes in tailored software creation. The feedback highlights their prompt responsiveness and dedication, with 100% positive reviews noting their thoughtful recommendations and efficient service. Clients appreciate their value for cost and ability to deliver projects on time, enhancing client engagement and lead generation.
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$50,000+$100 - $149 / hr10 - 49Seattle, WA
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See all 5 projectsNew Normal is a company specializing in Custom Software Development, providing tailored solutions such as bespoke software creation and full-stack software development. Across various projects, 100% of reviewers highlight their effective communication, timely delivery, and ability to adapt to client needs. They excel in integrating into existing project frameworks and transforming complex designs into functional prototypes. A minor improvement suggested is ensuring seamless code repository transitions.
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$10,000+$100 - $149 / hr10 - 49Newark, DE
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See all 26 projectsSoluntech is a custom software development company specializing in tailored software solutions and end-to-end software development. They have received consistently positive feedback, with 87.5% of reviewers highlighting their punctuality and professionalism. Many clients, approximately 75%, commend their effective communication and expertise in software engineering, although a minority noted issues with communication and timelines.
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$10,000+$25 - $49 / hr10 - 49Dublin, Ireland
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See all 28 projectsSquare Root Solutions is a Custom Software Creation company specializing in tailored and bespoke software development. With a focus on software engineering, they consistently deliver on time and within budget, as highlighted by 100% positive feedback from reviewers who praise their clear communication and professional approach. Their commitment to solution-focused, end-to-end software development is frequently commended.
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$10,000+$50 - $99 / hr50 - 249Mission, KS
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See all 24 projectsSoftDoes is a custom software development company specializing in tailored solutions that streamline operational processes for diverse industries. Their expertise in bespoke software development is highly praised, with over 90% of reviews highlighting improved efficiency and seamless project management. Clients appreciate SoftDoes' ability to deliver end-to-end software solutions that align with their organizational needs, resulting in operational improvements of 20-40% across various metrics.
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$5,000+$25 - $49 / hr2 - 9Chandigarh, India
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See all 3 projectsVaahu Deviaduct is a comprehensive digital solutions company specializing in app development, UI/UX design, and secure digital platform creation. Across their reviews, 100% of clients highlight their technical expertise, strategic thinking, and commitment to user experience. Clients also commend their responsive project management and ability to deliver on time, with several mentioning their impressive communication and adaptability.
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$25,000+$25 - $49 / hr50 - 249Pune, India
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See all 10 projectsIndexnine Technologies is a full-stack software development firm renowned for custom software creation and bespoke software development. Clients consistently praise their responsive project management, timely deliveries, and strong cultural alignment, with approximately 90% of reviews highlighting their effective communication and adaptability. The firm's expertise in tailored software development and managed software development has been instrumental in multiple successful projects, making them a reliable partner in software engineering.
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$5,000+< $25 / hr50 - 249Dubai, United Arab Emirates
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See all 43 projectsNXT LABS is a leading company specializing in bespoke software development and tailored solutions, with a strong focus on blockchain technology and custom software creation. The company receives overwhelmingly positive feedback, with over 95% of reviews highlighting their professionalism, technical expertise, and the ability to deliver innovative, user-friendly solutions on time. Clients commend their commitment to quality and flexibility in adapting to evolving project needs.
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$50,000+$150 - $199 / hr10 - 49Denver, CO
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See all 8 projects303 Software is a custom software development company specializing in tailored software solutions and full stack software development. They consistently receive positive feedback, highlighted by a 100% satisfaction rate from clients who value their technical expertise, responsive project management, and collaborative approach. Approximately 70% of reviewers emphasize their ability to meet project needs on time and within budget.
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$5,000+$100 - $149 / hr10 - 49Johns Island, SC
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See all 17 projectsFu Dog Media is a web development and SEO agency known for its exceptional creativity and professional approach. Across multiple reviews, 100% of clients praise their timely delivery and responsiveness. Fu Dog Media impressively customizes designs to reflect the unique identity of each business, with 90% of reviews highlighting their understanding of client needs and alignment with company values.
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$1,000+< $25 / hr10 - 49Bengaluru, India
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See all 10 projectsDgCrux Technology is a Custom Software Development company specializing in tailored software solutions, including AI-enabled applications and mobile development. Reviews indicate a 100% satisfaction rate, highlighting their prompt project management, commitment to timelines, and openness to feedback. Clients appreciate their value-aligned approach, competitive pricing, and the capability to deliver bespoke software solutions efficiently.
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$1,000+$50 - $99 / hr10 - 49Sofia, Bulgaria
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See all 7 projectsIntway is a distinguished company specializing in custom software development and tailored software solutions, offering end-to-end software development services. Across various reviews, clients commend Intway for its exceptional project management, flexibility, and ability to deliver high-quality, on-time results. Impressively, 100% of reviewers highlight their professionalism and technical expertise, with no criticism noted.
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$5,000+$25 - $49 / hr10 - 49San Francisco, CA
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See all 10 projectsEvolveDash Inc is a versatile company specializing in web development and SEO services. Reviews highlight their technical expertise and commitment to client satisfaction, with 100% of feedback emphasizing responsiveness and project timeliness. Despite some QA limitations, 80% of reviews commend their adaptability and ability to deliver impressive results, such as improved site performance and effective HARO services.
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$25,000+$50 - $99 / hr50 - 249Dubai, United Arab Emirates
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See all 32 projectsQuest Global Technologies Limited is a bespoke software development company specializing in custom software creation and managed software development. The majority of reviewers highlight their expertise in blockchain technology, with 100% of feedback mentioning timely delivery and effective communication. Their commitment to client collaboration and achieving project goals is frequently praised, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 8 projectsEmbrill is a specialized firm in bespoke software development, providing end-to-end firmware and IoT solutions. Across multiple reviews, 100% of clients commend their timely delivery and professional project management. Approximately 80% highlight Embrill's adaptability and technical expertise, while all reviewers express satisfaction with their tailored software solutions, noting no significant areas for improvement.
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$5,000+$100 - $149 / hr10 - 49Columbus, OH
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See all 9 projectsUplancer Agency is a Custom Software Creation firm specializing in software development, website design, and marketing plans. 100% of the reviews highlight their commitment to exceeding expectations, with clients noting their tailored solutions and proactive suggestions. The agency is commended for delivering projects on time and fostering top and bottom-line growth for their clients.
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$5,000+$150 - $199 / hr10 - 49Virginia Beach, VA
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See all 3 projectsBryant Digital is a comprehensive digital marketing agency excelling in branding, web development, CRM integration, and performance marketing. They have garnered consistent positive feedback, with 100% of reviewers highlighting their strategic approach and effective project management. Clients commend their ability to function as an extension of their team, resulting in successful community launches, increased lead generation, and substantial business growth.
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$10,000+$25 - $49 / hr10 - 49Lewes, DE
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See all 17 projectsMetaborong Technologies Private Limited is a custom software development company specializing in advanced Web3, blockchain, AI/ML integrations, and full-stack software development. Reviews highlight their disciplined project management, delivering 100% of milestones on time, and improving process efficiency by 40%. A minor critique noted the need for faster documentation delivery.
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$25,000+$50 - $99 / hr10 - 49Zabok, Croatia
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See all 3 projectsLumo Lab is a custom software development company specializing in tailored software development and full stack software development solutions. Reviews highlight their effectiveness in eliminating technical debt and enhancing performance, with 100% of the feedback being positive, noting their timely delivery and ability to stick to the budget.
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$5,000+$50 - $99 / hr2 - 9
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See all 3 projectsQuantumXL is a Custom Software Development company specializing in tailored software solutions. They received 100% positive feedback, with all reviewers highlighting their excellent project management and attention to detail. QuantumXL is praised for creating comprehensive, user-friendly platforms and maintaining effective communication, demonstrating their commitment to meeting client needs seamlessly.
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$1,000+$50 - $99 / hr10 - 49Ahmedabad, India
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See all 7 projectsLinearloop is a Custom Software Development company specializing in tailored software solutions, full-stack development, and software engineering. Reviewers consistently praise their technical expertise and ability to manage complex projects, with 100% of feedback highlighting their on-time delivery and strong project management skills. Their adeptness in modernizing legacy systems and building scalable solutions is frequently noted, making them a recommended partner for bespoke software development.
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$5,000+$25 - $49 / hr250 - 999Surry Hills, Australia
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See all 60 projectsEB Pearls is a Custom Software Development company known for its end-to-end software engineering services. With over 90% of reviewers praising their professionalism, effective communication, and timely delivery, the company excels in bespoke software creation and managed software development. Clients often highlight EB Pearls' strategic alignment and value-driven approach, noting their ability to function as an extension of their own teams.
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$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 23 projectsKevych Solutions is a Custom Software Creation firm known for delivering comprehensive end-to-end software development services, including mobile app development, backend engineering, and full-stack solutions. Over 90% of their reviews highlight their exceptional technical expertise, timely delivery, and proactive problem-solving. Clients consistently praise their ability to enhance user experience and offer innovative solutions tailored to specific project requirements.
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$25,000+$50 - $99 / hr250 - 999San Ġiljan, Malta
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See all 53 projectsValletta.Software: AI-Care is a Custom Software Development company specializing in tailored and end-to-end software solutions. The reviews highlight their high professionalism, with 100% of clients praising their prompt delivery and effective communication. They are commended for their technical expertise, delivering projects on-time and within budget, while meeting the specific needs of various industries.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 105 projectsRushkar Technology Private Limited is a software development company renowned for its custom software creation and full-stack software development services. With 100% positive feedback from reviewers, key strengths include delivering projects on time, clear communication, and adherence to client needs. Approximately 70% of reviewers emphasize their effective project management and value for cost, highlighting Rushkar’s client-centric approach and technical proficiency.
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$10,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
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See all 54 projectsOnix-Systems is a Custom Software Development company specializing in tailored software solutions, full stack software development, and end-to-end software engineering. Reviews reveal a mixed client experience: approximately 70% of feedback highlights exceptional project management, technical expertise, and customer-centric approaches, while 30% express dissatisfaction due to communication barriers and unmet technical expectations.
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$5,000+$25 - $49 / hr50 - 249Noida, India
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See all 98 projectsTechugo is a bespoke software development company excelling in end-to-end software engineering and custom software creation. The reviews consistently highlight their expertise in achieving tailored solutions with a focus on mobile app and platform development. Impressively, 85% of customers commend their project management and responsiveness, while 90% note their ability to understand complex requirements and deliver user-friendly interfaces.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 23 projectsNewsoft is a full-stack software development firm specializing in custom software creation and end-to-end software development. Across their reviews, clients consistently commend Newsoft for delivering projects on time, their exceptional communication, and technical proficiency. Approximately 90% of reviewers highlight their effective project management and alignment with company values, resulting in highly satisfied clients with minimal areas for improvement noted.
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$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
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See all 32 projectsein-des-ein is a bespoke software development company specializing in custom software creation and full stack software development. According to the reviews, 100% of clients expressed satisfaction with their technical understanding and ability to deliver tailored solutions, highlighting effective project management and a strong cultural fit. Clients also noted their expertise in AI and software engineering, emphasizing the company's capability to integrate seamlessly with in-house teams.
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$10,000+$50 - $99 / hr50 - 249Richmond, Australia
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See all 25 projectsAppetiser is a software development company specializing in custom, tailored solutions for diverse industries, emphasizing app development across iOS, Android, and web platforms. Consistently praised for their exceptional communication and agile project management, Appetiser received positive feedback in over 90% of reviews, with 70% highlighting their ability to adapt to changing priorities and deliver high-quality outcomes.
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$10,000+$25 - $49 / hr250 - 999Lauderdale-by-the-Sea, FL
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See all 73 projectsInterexy is a Custom Software Creation company specializing in end-to-end software development services. They have consistently received positive feedback, with clients praising their project management, technical expertise, and flexibility. Over 90% of reviewers highlight their ability to deliver projects on time and adapt to changing needs, indicating a strong client-centric approach and a high level of satisfaction with their services.
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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
Ability to deliver
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
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
45% Mobile App Development55% Other -
$50,000+$25 - $49 / hr250 - 999Warszawa, Poland
Ability to deliver
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
Ability to deliver
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
Ability to deliver
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.