Hire Kotlin Developers

Kotlin

Need an app that’s slick, fast, and doesn’t choke on Android’s chaos of devices? Kotlin developers are your go-to—coders who’ve mastered Google’s golden child of languages since it stole Java’s crown in 2017. At Upstaff.com, we hook you up with Kotlin experts who can ship polished mobile apps, backend systems, or even cross-platform gems, all without the usual hiring headaches.

We’re not here to waste your time. Our Kotlin programmers bring real-world chops—think Android apps with buttery UI or server-side logic that doesn’t buckle. With fair rates and a process that lands you a pro in 24 hours, Upstaff’s where you hire Kotlin developers who actually deliver, no fluff attached.

Kotlin

Meet Our Devs

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Grid Layout Row Layout
Java 4yr.
Kotlin 3yr.
Hibernate
Spring Boot
Kluent
Spring Cloud
Spring Core
Spring Data
Spring web
MySQL
Oracle Database
Apache Maven
Mock
Docker
Git
GitHub
GitLab CI
Gradle
Jenkins
Jira
Redmine
Linux
macOS
Windows
microservices architecture
Scrum
RESTful API
...

- 4+ years of commercial experience with Java and 3+ years of commercial experience with Kotlin - Proficient in Java and Kotlin programming languages, with experience in Spring Boot, Spring Core, Spring Data, Spring web, and Spring Cloud frameworks - Skilled in developing and maintaining APIs for mobile and tablet apps, including Kotlin-based Screwfix app development and Java-based NextGear Capital Mobile Account Portal - Expertise in Gradle, Jenkins, GitLab CI/CD, Docker, Microservice Architecture, Scrum, and various databases and cloud platforms - Demonstrated ability to solve architectural issues and create new features, with experience in both front-end and back-end development - Worked mainly with Spring Framework stack, and different REST APIs for mobile apps and tablets, creating and maintaining them with Java and Kotlin. - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
Java 5yr.
Kotlin 2yr.
Spring Data 5yr.
AWS EC2 5yr.
AWS Security Groups 5yr.
Atlassian Confluence 5yr.
Jira 5yr.
Docker 5yr.
Docker Compose 5yr.
Git 5yr.
CSS 4yr.
HTML 4yr.
Liquibase 4yr.
PostgreSQL 4yr.
Kafka 4yr.
JavaScript 3yr.
TypeScript 3yr.
Angular 3yr.
Bootstrap 3yr.
Bootstrap 4 3yr.
Spring Core 3yr.
GitHub 3yr.
Gradle 3yr.
Jenkins 3yr.
Kubernetes 3yr.
JAX RS 3yr.
Spring 2yr.
MongoDB 2yr.
GitLab 2yr.
GitLab CI 2yr.
GraphQL 2yr.
JSON 1yr.
AWS ElasticSearch 1yr.
ELK stack (Elasticsearch, Logstash, Kibana) 1yr.
MySQL 1yr.
Redis 1yr.
Grafana 1yr.
Prometheus 1yr.
Jolt 1yr.
Hibernate
Spring Boot
JAX-RS
Spring Cloud
Spring model-view-controller (MVC) framework
Spring Security
Mockito
Apache Maven
JUnit
Github Actions
RESTful API
Swagger
Spring WebFlux
Spring Web model-view-controller (MVC) framework
Testcontainers
...

- A software engineer with over 5 years of experience in e-commerce and FinTech domains. - Boasts a strong grasp of Java, Kotlin, JavaScript, and TypeScript, having used them in various projects. - Proficient in back-end development with advanced knowledge of Spring frameworks, Hibernate, REST API design, and integrating systems like Elasticsearch and Kafka. - Has experience in integration payment systems such as Google Pay and Apple Pay. - Skilled in database management systems such as PostgreSQL, MySQL, and MongoDB. - Demonstrates expertise in containerization with Docker and Kubernetes and is adept in CI/CD practices using tools like GitLab CI/CD and Jenkins.

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Seniority Senior (5-10 years)
Location Georgia
Java
Kotlin
Dart
Android SDK
Hilt
Jetpack Compose
Koin
Room (Android Jetpack)
Canvas
Dagger
okHttp
RxJava
Data binding
Glide
Gson
Kotlin Coroutines
LivaData
Moshi
Retrofit 2
Material UI
Firebase
SQLite
AWS
Android
Google Colaboratory
Daylimotion Player SDK
Elevation API
Google Maps API
Google Places API
Kotlin Flow
RESTful API
Flutter SDK
FreeBSD
Linux
macOS
Windows
Git
Jira
MVVM
OOP
XMPP
...

- 5+ years of experience in Android Development - Experience in developing applications using Java, Kotlin, Dart - Excellent knowledge of OOP - Experience in using Software design patterns - Good logical thinking, self-learning, high level of responsibility - Responsible, hard-working, result-oriented, creative and communicable, team player - Good attention to details - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
Android
Kotlin
Java
CameraX
Hilt
Jetpack Compose
Koin
Retrofit
Room (Android Jetpack)
Dagger2
RxJava
DataBinding
Kotlin Coroutines
LiveData
Moshi
Firebase
GreenDao
Realm
Clean Architecture
MVVM
Facebook API
Google API
GraphQL
Kotlin Flow
Gradle
Linux
macOS
Windows
MVP
Postman
WebRTC
XMPP
Box2D
Multithreading
MVI (Model-View-Intent)
...

- 7+ years of commercial experience in IT - Experience in developing applications using Java, Kotlin - Excellent knowledge in OOP - Experience in using Design patterns (MVP, MVVM) - Experience in using SQLite - Good logical thinking, hard-working, self-learning, result oriented - Good attention to details. - Upper-Intermediate English - Availability starting from 01/08/2023

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Seniority Senior (5-10 years)
Location Lviv, Ukraine
Java
Kotlin
Android SDK
Room (Android Jetpack)
Coil
Glide
Kotlin Coroutines
Ktor
Retrofit 2
JSON
RxJava2
XML
Firebase
Realm
SQLite
Android
API
RESTful API
Stripe
JetPack
Clean Architecture
MVVM
Espresso
JUnit
GitHub
WebSockets
...

- Experienced Android Engineer with 7 years of commercial experience and a strong track record of delivering innovative and robust mobile applications. - Proficient in Kotlin and Java, with expertise in MVVM and MVP architectural patterns. - Skilled in refactoring and improving existing codebases, implementing new features - Extensive knowledge of integrating SDKs like Here Maps, Firebase, Glide, and Realm. - Has experience working on navigation and banking applications. - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Vilnius, Lithuania
Java 6yr.
Android 5yr.
Kotlin 3yr.
Retrofit 5yr.
Firebase 5yr.
GitHub 5yr.
Adaptive design 5yr.
Google material design guidlines 5yr.
Google Play Console 5yr.
Android Jetpack 3yr.
Dagger 3yr.
MVC 3yr.
MVVM 3yr.
Kotlin Coroutines 2yr.
Timber 2yr.
Debugging tools 2yr.
Leak Canary 2yr.
Niddler 2yr.
Profiler 2yr.
JavaScript
PHP
Python
Hilt
Koin
Room (Android Jetpack)
Coil
Crashlytics
Glide
Picasso
RxJava
Material UI
PostgreSQL
Realm
SQL
SQLite
Facebook SDK
API
Facebook API
Kotlin Flow
RESTful API
BitBucket
Git
Github Actions
Bluetooth
Clean Architecture
Gradle
Jenkins
MVP
UI/UX
Android Biometric Auth
Animated Vector Drawables
Appsflyer
Appsflyer Analytics and
Architectures Components
ARCore
Braze
Broadcasts
Build Types
Content Provider
Environmental and Position sensors
Face and BarCode recognition
Fragments
Google In-app Purchases
Google ML Kit
Gradle scripts
Integrating CI/CD
Internal deeplinks
Java Servlet API
Java Socket
JsonMotion
Keystore
Mixpanel
MVI (Model-View-Intent)
Navigation
NFC
Object Animations
Onelink
ProGuard
Push notifications
R8
release and publishing
Threads
Transitions
Voip/VideoIP using Sinch and Zoom
WCAG
...

- Over 5 years of expertise as an Android developer specializing in Kotlin. Experienced in leading and collaborating with development teams to ensure successful project delivery. - Skilled in introducing new functionalities, transitioning projects from Java to Kotlin, and adhering to WCAG accessibility standards. - Proficient in software architecture, quality assurance, and agile methodologies. Also experienced in Java software engineering, web development, and instructional roles. - Comprehensive understanding of Android UI/UX principles, clean architecture, and a range of libraries and tools. - Solid proficiency in Java, Kotlin, RxJava, Coroutines, Android Jetpack, Firebase, REST APIs, and various development and debugging tools. - English proficiency at an upper-intermediate level. Available to start immediately.

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Seniority Senior (5-10 years)
Location Poland
Kotlin 2yr.
...

Kotlin

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Seniority Middle (3-5 years)
Location Tashkent, Uzbekistan
Java 4yr.
Kotlin 4yr.
RabbitMQ 1yr.
Angular
CSS
HTML
Hibernate
Spring Boot
JPA
.NET
.NET Core
.NET Framework
AWS ElasticSearch
Cassandra
Microsoft SQL Server
NoSQL
PostgreSQL
SQL
AWS
Apache Maven
Unit Testing
CI/CD
Gradle
TeamCity
GitLab
MVC
...

- 4 years experience with Java, Kotlin - 4 years experience with microservices (soa, event driven...) - 1,5 years experience with RabbitMQ - Learning the principles of software development has provided me with valuable experience and an understanding of design thinking methodologies. I have strong fundamentals in algorithms, OOP, data structures, different architecture types, etc. - Advanced English

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Seniority Senior (5-10 years)
Location Bosnia and Herzegovina

Let’s set up a call to address your requirements and set up an account.

Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager
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Want to hire Kotlin developer? Then you should know!

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Why Upstaff’s Kotlin Talent Stands Out

  • They Know Kotlin Inside and Out
    Our Kotlin developers aren’t just dabblers—they sling code with Coroutines for async magic, lean on Jetpack libraries like Room or Navigation for tight Android builds, and debug with IntelliJ like it’s second nature. Need an app with ViewModel for state that survives screen flips or a Ktor backend that hums? These pros have shipped it, from Play Store hits to enterprise tools.
  • Rates That Don’t Gouge You
    Hiring a Kotlin expert shouldn’t mean selling your soul. At Upstaff, you’re looking at $35-$65/hour for mid-to-senior talent—straightforward, no hidden garbage. Compare that to bloated platforms, and it’s clear: you get a programmer who knows Kotlin’s null safety tricks and extension functions, not some overpriced middleman. Quality meets wallet-friendly here.
  • Onboard in 24 Hours Flat
    Got a deadline breathing down your neck? Post your gig on Upstaff, and you’ll have a Kotlin coder—someone who’s wrestled with Gradle builds or optimized Dagger injections—ready to roll in a day. No endless interviews or ghosted emails. It’s fast, it’s clean, and your project’s live before the coffee’s cold.

Hire Kotlin Developers: Expert Mobile App Solutions

In today’s world, mobile apps are more important than ever. Hiring Kotlin developers is key to making great apps. Kotlin is a modern language that works well with Android, thanks to Google’s support.

At Upstaff, we use our Kotlin skills to find the best talent for your app needs. Our Kotlin experts make sure your apps are top-notch and stand out.

Key Takeaways

  • Hiring Kotlin app developers is crucial for building efficient and maintainable mobile applications.
  • Kotlin is officially supported by Google for Android development, enhancing its relevance.
  • Businesses can leverage Kotlin software development to innovate and create standout apps.
  • Upstaff offers access to dedicated Kotlin experts capable of delivering custom solutions.
  • Engaging with our top-tier Kotlin developers ensures your project meets and exceeds market standards.

Why Hire Kotlin Developers for Your App Project?

Kotlin is a top choice for mobile app projects. It makes apps better and faster. Let’s see why Kotlin is great for app development.

The Efficiency of Kotlin

Kotlin is very efficient. It cuts down on unnecessary code, making it simpler to work with. This means apps are built quicker and with better quality.

Seamless Integration with Android

Kotlin works perfectly with Android, thanks to Google’s support. This makes coding easier and faster. It means less trouble and more time for coding.

Future-Proof Your Application

Choosing Kotlin developers keeps your apps up-to-date. As Kotlin grows in popularity, your app stays current. This keeps your app strong and ready for new tech.

BenefitDescription
EfficiencyReduces boilerplate code, making development faster and code easier to maintain.
IntegrationSeamless compatibility with Android, supported by Google.
Future-ProofingEnsures ongoing updates and compliance with industry standards.

Understanding Kotlin Development Services

Kotlin development services help make strong mobile apps. We handle everything from the start to when the app is ready. This way, we make sure every app is top-notch and easy to use.

End-to-End Kotlin App Development

We take care of everything in Kotlin app development. This includes design, coding, testing, and upkeep. Our team makes sure your app works perfectly.

When you hire Kotlin programmer from us, you get great support. You’ll have a smooth app-making experience.

Custom Kotlin Software Solutions

We create custom Kotlin software just for you. Whether you need a special feature or a whole app, we use Kotlin to make it happen. Our team makes apps that really stand out.

Work with us for unique, creative solutions. We help your business stay ahead of the competition.

Benefits of Kotlin App Development

Kotlin is great for making apps. It helps businesses create apps that work well, are easy to keep up, and run smoothly.

Enhanced Performance

Kotlin’s simple code makes apps run faster. This means users get a better experience. If you hire kotlin app developer, they can make the most of Kotlin’s power.

Improved Code Maintainability

Kotlin makes code easy to keep up. Its clean design and strong tools help with updates. This keeps the codebase in top shape, saving time and effort.

Boosting Developer Productivity

Using Kotlin boosts how fast developers work. Its clear and short code lets them build apps quicker. This helps meet deadlines and get apps out faster.

Why Choose Our Kotlin Programming Company?

Our Kotlin programming company has a great portfolio. It shows we have a proven track record of making top-notch Kotlin apps. We help businesses reach their goals with custom solutions that fit their needs.

Proven Track Record

We’re proud of our proven track record in Kotlin projects. We’ve worked in many industries, showing we can meet different business needs. Our focus on quality means we deliver apps that are ready for the market and can grow.

Expertise in Kotlin Frameworks

Hiring our top Kotlin developers means you get experts in Kotlin frameworks. They’re not just coders; they’re tech advisors who make sure your apps are smart and safe. Their deep knowledge helps us create solutions that help your business grow.

Why Choose UsBenefits
Proven Track RecordEnsures successful project outcomes, aligning with your business objectives
Expertise in Kotlin FrameworksAccess to strategic tech advisors, delivering sophisticated and secure applications

Choosing our Kotlin programming company means you get full development services. We’re ready to help your business grow with our Kotlin expertise. We make sure our solutions meet today’s needs and are ready for tomorrow.

How to Hire Dedicated Kotlin Developers

Looking to hire dedicated Kotlin developers? We have a strategic plan to meet your project goals. First, we get to know your business needs and project details. This helps us match our kotlin experts for hire with the right skills for your project.

We use remote work to connect you with a dedicated Kotlin team. This makes it easy for them to fit into your workflow. We look for developers who are skilled and also a good team fit.

Here’s how we help you hire:

  • Initial Consultation: We check your project needs and goals.
  • Skill Alignment: We find Kotlin experts that match your project.
  • Flexible Engagement: Our remote work fits your schedule and goals.
  • Integration Support: We help the developers blend into your team.

Our careful process ensures you get Kotlin developers who are skilled and fit your team. They bring the expertise you need and fit right in.

PhaseDescriptionOutcome
Initial ConsultationUnderstanding project scope and requirementsClear project roadmap and objectives
Skill AlignmentMatching developers with the required skillsSkilled Kotlin experts for hire
Flexible EngagementAdapting to client’s timeframes and goalsSeamless project progression
Integration SupportEnsuring smooth team integrationEnhanced team collaboration

Qualities of Our Kotlin Experts for Hire

Our Kotlin development team is top-notch. We have unmatched expertise and a strong commitment to excellence. When you hire Kotlin expert developers from us, here’s what you get:

Extensive Experience

Our Kotlin experts have a lot of experience. They know how to handle all kinds of Kotlin projects. Their deep knowledge helps them solve complex problems easily.

This experience lets us deliver top-notch, reliable solutions every time.

Client-Centric Approach

We put our clients first. Our approach is all about you. When you hire our Kotlin experts, you get personalized service that fits your needs.

We keep in touch and listen to your feedback. This way, we make sure your project meets and often goes beyond your expectations.

Innovative Problem-Solving

We love solving problems in new ways. Our team is great at finding creative solutions to hard problems. This approach helps us deliver unique and effective solutions for your projects.

Build Your Kotlin Development Team with Us

Working with Upstaff lets you create a custom kotlin development team for your project. Our easy recruitment process helps build a team that fits your company’s culture and goals. When you hire kotlin developer online with us, you get to choose from our large pool of skilled developers. They are ready to create kotlin solutions that meet your specific needs.

We offer great support and a tailored engagement model to help your projects run smoothly. This way, businesses can grow their development work without losing quality or speed. By choosing to hire kotlin developer online, companies can quickly find and add top talent to their team.

Our services are flexible, so you can change the size and skills of your kotlin development team as needed. Pick Upstaff as your partner to upscale kotlin solutions and use Kotlin technology to move your projects forward.

BenefitsDetails
Customized EngagementTailor the team to resonate with your company culture.
Expert PoolAccess top-tier developers for unparalleled quality.
Scalable SolutionsAdjust the team size and expertise as required.
Efficient RecruitmentSignificantly reduce hiring lead times.

Why Partner with Top Kotlin Developers?

Working with top Kotlin developers is key for businesses wanting to lead the market. Our team knows the latest tools and frameworks. This means we can make innovative and strong Kotlin software solutions for you.

By teaming up with us, you stay ahead of the game. You’re also set to handle new tech changes as they come.

Access to Cutting-Edge Technology

Our top Kotlin developers give you access to the best tools and tech. We keep up with Kotlin’s latest trends and use them in our projects. This makes sure we deliver top-notch apps that meet and exceed market needs.

Our focus on excellence means we create apps that are both powerful and user-friendly. These apps set new standards in what’s possible.

Scalable Solutions for Your Needs

We don’t just make great apps. We also make them grow with your business. Our solutions are designed to handle more users and change as your needs do.

By thinking about scalability from the start, we build apps ready for growth. This means your software can expand without needing a complete overhaul later.

Table of Contents

Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager

Hire Kotlin Developer as Effortless as Calling a Taxi

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FAQ

What are the benefits of hiring dedicated Kotlin developers? Arrow

Hiring dedicated Kotlin developers means you get a team focused only on your project. This leads to better communication and faster work. You also get a deeper understanding of your needs, making your project better and more efficient.

Why should I choose Kotlin for my app development? Arrow

Kotlin is supported by Google for Android and is modern and efficient. It makes code easier to read and reduces unnecessary parts. This makes it great for making mobile apps.

What kind of Kotlin development services do you offer? Arrow

We offer full app development services. This includes creating custom software, designing, programming, testing, and keeping apps running. We make solutions that fit your project’s unique needs.

How can I be sure of the expertise of your Kotlin developers? Arrow

Our Kotlin team is made up of skilled professionals with lots of experience. They’re not just coders but also tech advisors. They ensure your app is sophisticated and ready for the market.

What makes Kotlin a better choice for Android development? Arrow

Kotlin works well with Android and is easy to use. It also cuts down on unnecessary code. This makes app development faster, easier to maintain, and better overall.

What qualities do your Kotlin experts for hire possess? Arrow

Our Kotlin experts have lots of experience and focus on your goals. They’re good at solving complex problems. They’re dedicated to making your project a success.

How do you ensure a smooth process when we hire a Kotlin developer? Arrow

We make hiring easy by understanding your needs and matching them with developer skills. We also use remote work to fit into your team smoothly. This boosts your development team’s abilities.

Can you help me build a complete Kotlin development team? Arrow

Yes, working with us lets you create a custom Kotlin team for your project. Our recruitment is simple and aims to match your company’s culture and goals.

Why partner with top Kotlin developers? Arrow

Working with top Kotlin developers means you get the latest technology. Your software will be innovative and ready for the market. We create solutions that grow with your business, keeping you ahead.

What is the process to hire Kotlin programmers through your company? Arrow

First, we understand your needs. Then, we match you with the right Kotlin programmers. We set up a way to work together that fits your project’s needs and schedule. This way, you get the best talent for your project.

What can Kotlin developers build for me? Arrow

Plenty—Android apps with Material Design that don’t lag, backend APIs with Spring Boot, or even multiplatform apps hitting iOS via Kotlin/Native. Our devs handle it all, from simple utilities to complex systems with Flow for reactive data streams. Tell us your goal; they’ll make it happen.

How’s Upstaff different from other hiring sites? Arrow

We’re not a generic talent swamp. Upstaff zeroes in on Kotlin experts—coders who live for inline functions and sealed classes—not random freelancers. Plus, you hire in 24 hours, not weeks, and pay for skill, not hype. Stack that against the usual suspects, and we’re the practical pick.

How do I kick things off with Upstaff? Arrow

Swing by Upstaff.com, drop your project details—like “need a Kotlin app with WorkManager for background sync”—and we’ll line up developers who’ve been there, coded that. Takes a few minutes, and you’re off and running with a pro who fits.

Can I hire a Kotlin programmer for a quick job? Arrow

Yeah, no problem. Whether it’s a one-off fix—like patching a leaky CoroutineScope—or a full-on app build, Upstaff’s Kotlin talent flexes to your timeline. Short gig or long haul, you’re covered.