Kotlin Developers

Are you looking to hire a Kotlin developer online for your project? No need to look further, at Ithire you can trust the development of your project to the best Kotlin developers in the market!

Clients rate 5/5

Meet our Developers

Hi ! I'm a Full-Stack Developer with more than 8+ years experience in creating not only high quality database-driven websites but also apps, softwares and games. Here is my skill sets for you. Java, React, Vue, Angular, PHP, HTML, CSS, WordPress, MySQL, jQuery , Node, Python, C++, C#, Firebase, Website Design, React Native, Flutter, Mobile app, WebRTC, Kibana, Ionic, Hybrid apps. I can spend my full time on freelancer and serve in real time for all days. Best Result will be delivered on Time and on Budget. Let's build the great relationship and go forward the success of your project.

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Foundation
  • UI / UX
  • React js
  • React Native
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • Hourly Rate$25 / Hr
  • Total Earned$20565
  • Experience9 Years

Harry Alden

United Kingdom

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I am a Senior Software Engineer with 10 years experience and high interest in challenging projects, I will be happy to work with you. I enjoy my job and I always try to do my best. My previous works cover: - Front End (HTML5, JavaScript, jQuery, CSS3, AngularJS, Bootstrap) - Back End (PHP, Symfony, WordPress) - Databases (MySQL, SQLite, Web SQL, IndexedDB) - Building adaptive user interface - Development of web platforms and CRM/ERP systems - Creation or optimization of website mobile versions - Databases design and administration - Code test and optimisation - Data processing, analysing and visualisation (IBM SPSS) - API interaction - Both independent or teamwork project realization I provide creative, high-tech solutions to your web design and programming needs. I have broad experience in Linux, Apache, MySQL and PHP / Perl. (Also known as the LAMP stack.) I adhere to industry best practices, and bring to your projects the disciplines of MVC framework design patterns such as CodeIgniter in PHP, Git version control, and project management systems such as Jira, Unfuddle, and Trac.

  • HTML5
  • jQuery
  • Ajax
  • PHP
  • Java
  • Python
  • Hourly Rate$35 / Hr
  • Total Earned$4695
  • Experience12 Years

Hi there. Thanks for checking out my profile. I am a highly experienced Full Stack Developer with more than 7 years experience. Here you can see some of my skills and interests. I am well organised, efficient and self motivated. The key to my success is to learn quickly and then reach for higher personal and professional standards. I am proficient in the use of JavaScript/JQuery, HTML/CSS, Web Design, Graphic Design, SEO, MongoDB, Python, Drupal and so on. In my work I do the best to meet my clients’ expectations. I’m looking forward to discussing your project together. I’m sure I’ll able to please anybody as I’m very hardworking.

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • Foundation
  • UI / UX
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • Codeigniter
  • Object-oriented Programming (OOP)
  • SEO
  • SVG
  • C++
  • C#
  • Java
  • Python
  • Ruby
  • Jade
  • Web Developers
  • Software Developers
  • Software Engineer
  • Front-end developer
  • Back-end developer
  • .NET developer
  • Game Developer
  • 3D Animator
  • Motion Graphics Designer
  • Mobile Developer
  • Designer
  • Mendix Developer
  • QA
  • Data science
  • Flutter
  • DotNET
  • Blockchain
  • XHTML
  • Vue.js
  • IoT
  • Augmented
  • GraphQL
  • Hadoop
  • Yii
  • Mern
  • VR
  • Software QA
  • Digital marketing
  • MATLAB
  • Powershell
  • Assembly
  • MQL4
  • Desktop
  • W3E
  • Delphi
  • PineScript
  • Metatrader
  • Binance
  • AutoHotkey
  • DAT
  • Icon
  • UAT
  • Data
  • Typography
  • Business card
  • Simplicity
  • Rchain
  • Vyper
  • Rholang
  • Erlang
  • CoffeeScript
  • Microsoft Access
  • CRO
  • Lisp
  • Shell
  • SAS
  • Code
  • Haskell
  • MODX
  • Perl
  • GO
  • Scala
  • Microsoft power BI
  • Network
  • Squarespace
  • Volusion
  • Big Cartel
  • Shopware
  • Ecwid
  • Webflow
  • Project management
  • Swift
  • Flutter Dart
  • Apache groovy
  • Clojure
  • Julia
  • Crystal
  • R
  • Fortran
  • COBOL
  • Elixir
  • Mongodb
  • PostgreSQL
  • OCaml
  • SQLite
  • Apache Cassandra
  • Elasticsearch
  • Firebase
  • Bash
  • Firestore
  • DynamoDB
  • VBA
  • Redis
  • MariaDB
  • Phoenix
  • Gatsby
  • Blazor
  • FastApi
  • Svelte
  • Next.js
  • Google-cloud
  • Pandas
  • Flask
  • Nuxt.js
  • Django
  • Hourly Rate$25 / Hr
  • Total Earned$13716
  • Experience8 Years

I am a senior 7+ experienced full stack developer with both back-end and front-end development. I have been working on web, mobile and desktop software development. My major skills are .NET, PHP, Python, Solidity and JavaScript. Here are my skills and experiences. Programming languages: - C#, C++, Java programming, PHP, JavaScript, jQuery, Python. Full stack area: - ASP.NET MVC, Webform, Webapi (back-end) + React, Angular(front-end) - PHP, Laravel, Codeigniter, Symfony (back-end) + React, Angular(front-end) - Node.js + Express(back-end) + React(front-end) - Image Processing using OpenCV( Face, LicensePlate Detetion & Recognition) Cryptocurrency and Blockchain - Solidity - Web3 Mobile development: - React Native, Ionic, Native Android, iOS development. Game development: - Unity3D Database: - SQL Database, MySql, MongoDB, Firebase, PostgreSQL Work Terms I can work over 40 hours per week, and working time is very flexible for you. Also, I am full-time available, so you would be comfortable while working with me

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • Codeigniter
  • SEO
  • SVG
  • C++
  • C#
  • Java
  • Python
  • Ruby
  • Jade
  • Hourly Rate$30 / Hr
  • Total Earned$47872
  • Experience7 Years

I am a highly qualified Full Stack Back and FrontEnd Expert with 8+ years of experience in web and application development using different databases (MySQL, PostreSQL, SQL Server). My skills are: - Excellent experience in: PHP/PHP5, HTML/HTML5, CSS/CSS3, SASS, JS, Ajax, JQuery - Javascript concepts: AngularJS, NodeJS, ReactJS, HAPIJS, Javascript frameworks - Deep experience in frameworks: Yii, Zend, CodeIgniter, Laravel, CakePHP

  • Hourly Rate$35 / Hr
  • Total Earned$28860
  • Experience8 Years

I am Malone, a senior developer with React/Angular/Django/Node.js/C#/AWS experience. I have been working as full-stack web/mobile app developer for 8 years. 1. React.js skill I have professional skills in React.js, Typescript, Redux, API integration using http client libraries like Axios/Fetch/Apollo Client, UI libraries like Material-Kit-React/Material-UI/Ant-Design, unit tests with Jest/Mocha/Jasmine. 2. Django (and other Python web framework) skill I have professional skills in Python, Django, Django Rest Framework, UI package like Django Bootstrap UI , unit tests with Pytest. I write high effective Python code with setting Pylint and unit tests, and follow best practices to build the scalable backend in Python/Django. 3. AWS I have expertise in AWS SAM, Lambda, Amplify, DynamoDB, CodeBuild, CodePipeline, EC2, ECS. - Mean - Angular, Angular Material Design - Mern Stack : Proficient in Reactjs/Redux/React Saga/Nextjs/Strapi, - Vuejs/Vuex, - PHP/Laravel/Codeigniter. - Python/Django - C#/VB.NET/ASP.NET Core/MVC Here are some of my approaches to design infrastructure. 1. Keep components small and function-specific 2. Reusability 3. Consolidate duplicate code 4. Comment only where necessary Thanks !

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • Foundation
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • Codeigniter
  • SEO
  • SVG
  • C++
  • C#
  • Java
  • Python
  • Ruby
  • Jade
  • Hourly Rate$30 / Hr
  • Total Earned$31515
  • Experience8 Years

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Customer Reviews

Albert Golubkin

Hourly Rate35$ /Hr

Projects Done11

Reviewed by Cindy Nelson

If you are looking for quality mobile app development, I would highly recommend Albert. He is reliable, responsive and knows what he is doing.

David Lange

Hourly Rate40$ /Hr

Projects Done10

Reviewed by Ian Carroll

David is a hard-working perfectionist who is always ready to put all his energy into the current project in the fast-paced product cycle. He is a world-class and highly motivated software engineer with strong technical skills. It was really productive and inspiring to work with him. I definitely would want to work with him again later.

Asher Jones

Hourly Rate27$ /Hr

Projects Done8

Reviewed by Matthew Hill

Asher is a top skilled Android developer, who knows what he is doing. I am more than satisfied with the quality of service that was provided!

Eliana Rodriuez

Hourly Rate25$ /Hr

Projects Done8

Reviewed by Erin Morgan

Extremely talented...superb work done...ultimate timing...delivered on purposed time...Will re-hire...

Helga Lang

Hourly Rate24$ /Hr

Projects Done7

Reviewed by Marilyn Scott

This is my 3rd time working with Helga and she is always my first choice because her work has been perfect so far!

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What is Kotlin?

With an emphasis on productivity in the tech world, Kotlin has succeeded in taking the programming language expertise to another level.

The developer of software tools at JetBrains is the creator of Kotlin in 2010. Since Java was the mainly used coding language in their products, they set out to develop another computer language basing on their alright tried and tested Java, which would have constructs like higher order functions but be much simpler to program.

Therefore, Kotlin is to be thought of as a measurable, open source android programming language  that can be used for different operating systems such as web, Android, macOS and iOS.

Kotlin vs Java

As we know, Kotlin and Java are interoperable, but they are two different programming languages. So, let’s explore how they differ.

The main difference between Kotlin and Java is the Null Safety, in contrast to Java, Kotlin has built-in null safety. Kotlin also has the advantage of not only making the creation of date classes a lot easier but also extending the functionality of classes compared to Java. 

On the contrary to Java, Katlin has a smart feature that handles the casting checks. Whereas for Java it’s mandatory to specify the type of each variable, in Kotlin it’s quite the opposite.