Hire Kotlin Developers
Hire Kotlin developers who deliver more than clean code. At Volpis, we’ve been writing native Android since before Kotlin was the standard, shipping production apps used by millions across multiple industries. We bring the engineering discipline that holds up at scale, not just at demo day.
Whether you’re building a new Android app, modernizing a Java codebase, or scaling an existing Kotlin product, we know the terrain.
Years of Kotlin Experience
In-house Talents
Kotlin Projects
our ACHIEVEMENTS
Trusted Kotlin development company
With about 30 positive reviews on Clutch and 100+ completed projects on Upwork, we’re recognized as a top software partner. Every 5-star review and award is the result of genuine collaboration and shared success.
CLIENTS
Trusted by leading global brands
From startups to Fortune 500 companies, we’ve partnered with organizations across industries to design and deliver high-performing digital products that drive real business value.
KOTLIN DEVELOPMENT EXPERTISE
Kotlin app development services we provide
Custom Kotlin Android app development
Build native Android apps using Kotlin from the ground up. We use Jetpack Compose for modern, declarative UI, coroutines for smooth async performance, and a clean architecture that scales with your needs. No legacy patterns carried over from Java.
Java-to-Kotlin migration
Move your legacy Java codebase to Kotlin incrementally, file by file. We use Kotlin’s interop with Java to keep the app stable and shippable throughout, and refactor patterns toward null safety, coroutines, and modern Kotlin idioms as we go.
Jetpack Compose adoption
Modernize your Android UI from XML to Jetpack Compose, screen by screen. We mix Compose with legacy Views where it makes sense, so your team gains a faster, more maintainable UI layer without halting feature work.
Kotlin app maintenance and support
Keep your Kotlin app stable, current with new Android releases, and continuously improving. We handle bug fixes, performance tuning, and the incremental feature work that keeps your product moving forward, sprint by sprint.
Kotlin codebase audit
Get an honest picture of where your Kotlin codebase actually stands. We dig into whether coroutines are being used correctly, whether null safety is genuinely leveraged, and whether the overall architecture is set up to grow. You’ll receive a clear, prioritized report to act on.
Kotlin consulting
Define the right foundation before writing a single line of code. Our Android leads help you choose between MVVM and MVI, plan modular project structures, and make architecture decisions that won’t need to be undone six months later.
Need logic that runs on both Android and iOS?
KOTLIN APP DEVELOPMENT TOOLS
Kotlin app development technologies we work with
Kotlin Frameworks
Graphics and Animation
Augmented Reality
Mapping and Location
Databases
Cloud Integration
Payments
Audio and Video Streaming
APIs and Libraries
Analytics Tools
Testing Tools
Steps to hire a Kotlin developer
How to hire Kotlin developers from Volpis
Introductory call
- Tell us about your project – Android app, Java migration, or something else.
- Review collaboration models that fit your timeline and team setup.
- Learn about our Kotlin experience, past projects, and pricing.
Receive proposal
- Receive a tailored proposal within 72 hours.
- Get detailed timelines, deliverables, and transparent pricing, scoped specifically for your Kotlin development project.
Start collaboration
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- Kick off with a vetted Kotlin developer embedded in your process.
- Most clients are up and running within 1–2 weeks of the intro call.
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Your Trusted Kotlin Development Company
Why hire Kotlin developers from Volpis?
9 years of production Kotlin
We’ve been building with Kotlin since its early adoption, before it became Google’s official language for Android. 40+ projects, apps with millions of downloads across industries, and the architectural instincts you only get from shipping at this depth.
Jetpack Compose fluency
Our developers build in Compose every day, mix it with legacy Views where it makes sense, and avoid the rough edges that catch teams new to declarative UI. Your UI layer ships faster and stays maintainable as your product grows.
Java to Kotlin migration experience
Our developers have migrated production Android codebases from Java to Kotlin without freezing roadmaps. They know which conversion patterns are safe to automate, which need careful refactoring, and how to ship cleanly through the transition.
AI-accelerated Kotlin development
Our developers use AI throughout the process for Kotlin’s repetitive parts: data classes, state holders, Coroutine boilerplate, and Compose previews. The result is shorter timelines without compromising code quality or architecture decisions.
Process-driven Android delivery
Every project runs through 30 in-house delivery standards: architecture review, code review, performance profiling with Android Studio Profiler, accessibility audits, and Play Store readiness checks. Quality is engineered into the workflow, not promised at the end.
Vetted Kotlin talent
Every developer passes a multi-stage evaluation covering Kotlin idioms, coroutines, Jetpack Compose, and Android architecture (MVVM, MVI, Clean). Pick the seniority that fits, the bar is the same for everyone on the team.
Risk-free trial
Start with 40 free development hours. See the code, the communication, and the process firsthand before you commit to anything.
Security
and IP Protection
Showcase
Our recent Kotlin app development projects
My-Day
Workplace
A wellbeing platform helping employees build healthier daily habits across five areas: how they feel, eat, move, sleep, and connect. Built natively in Kotlin with MVVM architecture, the Android app handles the complexity of syncing real-time health data from Google Fit, Fitbit, and Garmin, keeping the experience smooth and the data reliable regardless of which device a user comes from. The architecture was designed for scale from day one, which paid off: the MVP was delivered ahead of the beta deadline.
The Holy Quran
Religion
A non-profit app trusted by millions of Muslims worldwide for daily Quran study and prayer. Volpis took over a legacy Android codebase, migrating it from Java to Kotlin as part of a full product modernization, improving stability, simplifying the development process, and laying the groundwork for new features. Particular attention was paid to local database performance and background services, areas where Kotlin’s modern tools made a measurable difference. The app experienced a rating boost from 4.3 to 4.8 with over 11,000 reviews.
Rand One
Fleet management
A hardware-free fleet tracking app built for one of North America’s most established names in navigation. The Android side was developed in Kotlin with Jetpack Compose and MVI architecture, chosen specifically to handle the complexity of real-time GPS tracking, continuous background services, and driver management tools running simultaneously, without draining the battery. We engineered the tracking logic to match the precision of dedicated hardware devices, entirely through software.
What clients say about our Kotlin team
Every review below comes from a real project – native Android apps, Java migrations, long-term product partnerships. We let the work speak for itself.
Though the product is not yet launched, Volpis hat met all deadlines and budget given. They have been amazing in application and communication. Moreover, the deliverables are of high quality.
James Parkes, Founder My-Day
Volpis partnered with us closely throughout all phases of the project to build and deliver a new suite of tablets. We had joint regular planning, review, and strategic sessions. Volpis was able to update and enhance existing Android-based applications, as well as design and develop new applications.
Clarke Retzer, Director of Software, Rand McNally
The communication especially with the Android developer Vlad was incredible, he was even available to chat with me through slack on the weekends, and he was able to be the point-person for the iOS developer because of his great communication and English skills. They made testing very easy for me, and communication was good, using Slack.
Talib Omer, The Holy Quran
Before you hire Kotlin developers: essential insights
Android, Mobile, Software development, Strategy
Android app development: Outsourcing vs. In-House ( How to choose)
Android, Mobile, Software development, Strategy
Kotlin Developer Hiring Guide: How to Evaluate, and Onboard in 2026
Ready to Hire Kotlin Developers?
Tell us about your project – we’ll get back to you within 24 hours with a clear plan and transparent pricing.
Questions & Answers
FAQ
What is Kotlin, and why is it ideal for Android development?
Kotlin is a modern, statically-typed programming language designed by JetBrains, and it is officially supported by Google for Android development. It is ideal for Android development because it is fully interoperable with Java, concise, and has built-in safety features that reduce the risk of errors.
Kotlin app development has gained popularity due to its robust features that enhance productivity and code quality.
The Kotlin programming language allows developers to write clean and maintainable code, crucial for android app development. Thanks to its compatibility with Android Studio, Kotlin language enables smoother development workflows for Android mobile applications.
With Kotlin app porting, you can seamlessly transition apps from Java to Kotlin language, maintaining performance and functionality. When you hire remote Kotlin app developers from us, we ensure you’ll be working with professionals who understand how to leverage the full potential of the Kotlin language, functional programming concepts, and Agile development for superior mobile experiences.
Is Kotlin better than Java for Android development?
For new Android projects, yes, and Google’s own direction makes this clear. Kotlin produces significantly less boilerplate code than Java, which means faster development and fewer places for bugs to hide. Its null safety system prevents one of the most common causes of Android app crashes. Coroutines make handling asynchronous tasks, like network calls or database operations, cleaner and more reliable than Java’s threading model. Java codebases can still be maintained and gradually migrated, but starting a new Android project in Java today would mean working against the direction of the platform, its tooling, and its ecosystem.
Can Kotlin be used for iOS or web development?
Kotlin’s primary home is Android, but its reach has expanded. Kotlin Multiplatform allows teams to share business logic, data models, API calls, validation rules, across Android and iOS, while each platform keeps its native UI layer. On the backend, Ktor is a Kotlin-native framework for building lightweight web servers and APIs. These are real use cases, though they’re distinct disciplines from Android development. If your project involves Kotlin Multiplatform specifically, we have a dedicated team for that – see our KMP services.
What experience do your Kotlin developers have?
Our Kotlin developers have 5+ years of experience on average, working on a variety of projects, from MVPs for startups to enterprise-grade applications. They have successfully delivered projects across industries like healthcare, e-commerce, AR/VR, and more.
Our skilled Kotlin developers specialize in custom Kotlin app development, ensuring tailored solutions that meet specific business needs. We provide top-tier Kotlin app development services that offer quality, speed, and scalability.
Our team has experience with complex Android app development challenges, creating high quality Android apps for the Google Play Store. We take pride in offering the best Kotlin developers who are ready to dive deep into each project, ensuring seamless integration and optimal results.
By choosing us, you gain access to top Kotlin developers with expertise in leveraging Agile methodologies to develop apps that offer numerous functionalities and deliver great user experiences.
Why choose Volpis as your Kotlin development company?
We’ve been building Kotlin applications for 9+ years, with 50+ projects delivered and about 30 verified Clutch reviews. Unlike freelance platforms or generalist agencies, we focus on mobile product delivery – meaning our Kotlin developers bring both technical depth and product thinking to every engagement. You also get a dedicated project manager, transparent pricing, and a risk-free 40-hour trial to start.
How much does it cost to hire Kotlin developer?
$30–$40 per hour on average. The cost of hiring a Kotlin developer depends on the engagement model you choose – hourly, fixed price, or dedicated team. When you hire Kotlin developers, you get access to professionals who understand the value of long-term software development success.
Our senior Kotlin developers ensure that every project is built efficiently, keeping your budget in mind. We offer remote Kotlin developers for greater flexibility in managing your project’s needs.
What is the difference between hiring a Kotlin developer and an Android developer?
In practice, the terms are often used interchangeably, but there’s a meaningful distinction. An Android developer knows the platform; a Kotlin developer knows the language deeply. The best Android developers today are both: they understand Kotlin-specific features like coroutines, extension functions, and sealed classes well enough to use them correctly, not just syntactically. The risk with hiring purely on Android experience is getting someone who writes Java logic in Kotlin syntax, technically functional, but missing the performance, safety, and maintainability benefits the language is designed to provide.
How long does it take to start working with your Kotlin programmer?
We can typically start within 1-2 weeks after the initial consultation. During this time, we finalize the project requirements, select the best-fit software engineers and align on engagement models and timelines.
For urgent needs, we can expedite the process to meet your deadlines. We understand the importance of Android mobile app development timelines, which is why we prioritize quick onboarding.
When companies hire Kotlin developers from us, our project managers coordinate closely with the client to ensure every aspect of the app development process is aligned with business goals. Hiring dedicated Kotlin developers ensures that the project is not only completed on time but also meets the highest standards in terms of functionality and user experience.
By working with dedicated Kotlin app developers, you ensure smooth and efficient development right from the start.
What should I look for when hiring a Kotlin developer?
Beyond the basics, Kotlin syntax, Android SDK familiarity, API integration, the qualities that actually determine whether a hire succeeds are harder to spot on a CV. Look for fluency with the modern Android ecosystem: Jetpack Compose, MVVM or Clean Architecture, dependency injection with Hilt or Koin, and Room for local storage. A strong Kotlin developer treats testing as part of their own workflow, not something to hand off to QA. They should be using AI tools deliberately in their day-to-day, not to generate code they don’t understand, but to move faster on repetitive work. Problem-solving and communication matter as much as technical skill, especially in remote setups. And watch for red flags: a developer who can’t explain their own portfolio, has no opinions on testing, or describes architecture choices by convention rather than reasoning.
For a more detailed breakdown, see our Kotlin developer hiring guide.
