Hire Kotlin developers to to build Android apps
Looking for new options to develop your app? Relevant offers Kotlin developers for hire to make your app outstanding and modern. Let’s build something great together!

Services our developers are skilled at
- Custom Kotlin app development
- Kotlin app optimization
- Cross-platform development
- Kotlin web application development
- Migration to Kotlin
- Kotlin app testing
- Kotlin debugging
- Kotlin app support and maintenance
- API web requests with JSON, XML, HTTP, HTTPS
Hire Kotlin developers in 4 steps
- 01Describe your need
At this stage, we meet to understand your overall strategy, market niche, values, and current IT infrastructure, and see how many Kotlin developers you need to hire. Then our HR managers search for candidates.
- 02Review candidates
After determining all points with the development of your project, HR managers review candidates and select the best Kotlin developers for hire. You also receive their resumes to pick the final candidates.
- 03Finalize your choice
Finally, after spending some time approving candidates for your project and hiring Kotlin developers, we help them quickly onboard your project and integrate your management tools into their workflow.
- 04Begin development
Once new candidates are integrated into the team, we sign the NDA with every team member who works on your project and start prototyping and developing the backend and frontend of your app.



Deep expertise across industries
Success stories
Why is Relevant a good choice for hiring Kotlin experts?
Agile methodology helps us go through the project planning, implementation, and evaluation holistically and cyclically to speed up the development.
Our project managers have experience in planning the project, organizing its development & launch, and focusing on improving team performance.
Relevant provides its engineers with jobs on various projects and assignments that merge knowledge and improve practice, which is a great way to retain talent.
At each stage, our clients receive a full range of services. We maintain high standards of service, from excellent communication to project release.
Relevant works only with experienced engineers. Our senior and mid-level software developers ensure high-quality Kotlin services and rapid release standards.
Relevant constantly improves risk management methods and implies cutting-edge tools. Thus, we are more than just a supplier, but a reliable software partner.
Our core tech stack
Backend
Node.JS Nest.JS Salesforce Java Python .NET PHP TypeScript
Mobile
Swift Kotlin React Native
Frontend
Vue.JS React Next.JS TypeScript Angular
Cloud
GCP Azure AWS Vercel
What clients are saying about Relevant
average
Insights from our experts
Questions you may have
There are several ways you can hire a Kotlin developer.
The first one: is to look for a Kotlin developer for hire on freelance or hiring platforms and conduct several stages of interviews, testing, familiarization with their portfolio, etc.
The second one: you can simply contact us, and we will conduct all the necessary stages of testing the Kotlin knowledge and skills of developers, select some of the best among them, and give you a choice.
The number of specialists depends on which project needs to be implemented and in what terms. Therefore, you can hire Kotlin developers depending on your project needs and budget, i.e., from 1 to any number you need.
Over 11+ years, we have completed more than 200 projects. Therefore, we cooperated with almost all niches on the market. We understand the basic development needs of various industries, from banks to construction companies. The relevant team has released most of the projects in such fields:
- Fintech
- IoT
- Real estate
- Retail
- Construction
- Travels
Tell us more about your company and the goals of your project. Let’s talk, and we’ll help you hire Kotlin developers to provide you with software solutions quickly and efficiently.
Your application was created depending on which language and with which tools/platforms. In general, we provide migration services for your applications to Kotlin. Hire app developers to make your app work faster, better, and more diverse.
We guarantee security and privacy at every level of the outsourcing process. We use the best security measures to protect our customers’ confidential data. So when you hire a Kotlin app developer:
- Before starting work on the project, we sign a non-disclosure agreement with the client and our employees who will work on the project.
- Our systems don’t have external storage devices (floppies/CDs/USB ports, etc.)
- We use passwords and two-factor authentication to protect all our systems and email.
- Only the team working on your project has access to your code and other data.
When discussing price, we include two critical components: time and materials. The price depends on how much time (full-time, part-time, or hourly based on hiring) and the effort you need to spend developing the project. We usually charge an hourly rate for bi-weekly invoices.
Hiring a Kotlin developer at Relevant allows you to collaborate with developers worldwide.
Therefore, each developer’s price with bonuses, non-financial benefits, paid vacations, and taxes can average $50-70 per hour. This way, you can see the final amount you should pay for hired senior Kotlin developer outsourcing job.
You have two possible options: find tests to control knowledge and skills designed to assess the knowledge of Kotlin developers for hire. Or you can also call us on Skype and chat, ask about the projects we have already developed using Kotlin, and check our expertise.
We’ll explain what steps we take to hire a Kotlin programmer through a 5-stage interview process to determine candidates’ hard and soft skills, including:
- View resume. The selection process begins with the review of candidates’ resumes. Selected candidates are then invited to a video interview with a recruiter. And there, our HR staff check the candidate’s communication skills and tell more about the company and expectations. Ultimately, the individual advances to the next selection stage if there is a match.
- English language assessment. Another critical stage for us is checking candidates’ English proficiency levels. It’s important to us that our engineers understand our customers well and can quickly answer all their questions.
- Personal interview with the project manager. We move on to a more specific technical check if the candidate successfully passes the previous stages. At this stage, candidates interact with our Senior Developers/QA Engineers/Project Managers, during which they test the candidates’ skills. After that, we also provide a test task to test the practical skills.
- Reference check. In addition, our recruiters contact the individuals referred by candidates to see how they fit in with the team.
- Final interview. After all stages, the candidate undergoes a final interview with our CEO to agree on terms and decide to hire a Kotlin programmer.
Both languages are fantastic and offer advantages that make them excellent choices for developing leading mobile applications. However, Java is better for large applications with many features and capabilities that must work on all platforms, including Android, iOS, Windows, and Linux. In addition, Java has mature libraries that support this application development well.
Kotlin developers for hire build performance-critical applications, such as those that need to run smoothly on older Android phones. Kotlin is modern, with a streamlined and efficient design that will perform better for scaling.
Of course! We work with many types of software engineers whose responsibilities include analysis of user needs and setting goals and objectives for projects, collaboration with systems programmers, analysts, and other engineers to define project needs, use of mathematical models and scientific analysis to build results and opportunities, consulting on design elements, and defining performance interfaces.
Besides Kotlin developers for hire, at Relevant, you’ll find specialists in the following areas:
- Frontend engineer
- Backend engineer
- Full-stack engineer
- Test software engineer (quality control engineer)
- DevOps engineer
- Protection engineer
You can do this in several ways. For example, your application or platform can monitor development progress. Or you can join what we at Relevant prefer to use. We use the Jira software application for development process tracking and project management. We will add you to the project, and you will see how every Kotlin programmer you hired works.
According to many developers, Kotlin will likely become a significant programming language in the next few years. Some would say it’s already the next big thing.
It’s explained for many reasons. One of these reasons is that Kotlin is a remarkably modern programming language, combining all the best features of previous languages.
Big brands already hire Kotlin app developers to support their applications. All this contributes to the fact that Kotlin will be in high demand in the next few years.
Over 11 years of experience in providing IT outsourcing services, we’ve increased our expertise in working with different specialists, including searching for Kotlin developers for hire. During this period, we’ve successfully helped many companies worldwide find suitable IT experts and completed over 200 projects in various industries and niches.