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

Mari Sidorova

Russian Federation

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I am a Full-stack Developer, I have eight years of experience in developing back-end and front-and features for global companies. In these years, has developed many websites and applications, including requirements analysis, design, development and production support. Fluent in Web Development with strong knowledge of real-time systems and factory automation. Technical Skills:  Wordpress  Web design  JavaScript/AJAX  HTML/CSS/LESS/SASS  XML, JSON and 3rd party APIs  Cross-platform and cross-browser  API/codex knowledge  Plugins, Coding standards  Server config  Shopify  Woocimmerce  Ecommerce  Bigcommerce  GraphQL  React  C#/C++/C  IOs  Android development  Swift  NextJS  Objective-C Linux  MacOs, Windows  Ruby  Python  Go  Perl  PHP  Haskell  MATLAB  Scheme  Scratch  MySQL  SQL  MariaDB

  • Hourly Rate$30 / Hr
  • Total Earned$12000
  • Experience8 Years

I am interested in working on both small and large projects and will meet the deadlines that we mutually agree upon. I look forward to providing you with a high-quality solution for your web applications, projects and applications. Besides, I can do peer code reviews, continuous integration, manage source control in a distributed team environment ( using Git, Bitbucket, TFS) and can delegate tasks as necessary to the best fitting team members/sub-ordinates and keep a track of progress without fail.

  • 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
  • Hourly Rate$27 / Hr
  • Total Earned$27671
  • Experience10 Years

I have built loan management systems applications for Retail and Online customers nationwide on every layer of the stack. I have used Docker container and Kubernetes clusters for client's projects. I have have 9 years of experience. Skills are- Git, SQL SQL Server, MySQL, MongoDB, PostgreSQL, Restful API, AWS, SOAP, Azure, jQuery, PHP, Python Django,Flask, Java and much more. I have Web Development with React framework, also Migrate APIs and MVC applications from .Net Framework to .Net Core framework. Create Docker containers for each application and hosting using Kubernetes. I have used Spring Boot, MongoDB, Apache Kafka, and Apache Avro to create event driven API microservices to handle sales, access control, product configuration, and more. I have used Angular to create multiple front end applications. Certain apps were bundled using Electron to enable more complex integration with payment terminals, thermal printers, scanners, and access control gates. I have both front and back end skills. I have deep knowledge of some databases.

  • 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
  • SEO-audit
  • Hourly Rate$30 / Hr
  • Total Earned$22972
  • Experience9 Years

I'm an experienced software engineer who constantly seeks out innovative solutions to everyday problems. In my seven years in this industry, I've honed my analytical thinking and collaboration skills, and I love working with a team. I’m skilled with PHP, JS, Python, CSS, HTML, Wordpress, Wix, SquareSpace and surely skilled in work with Database (MySQL, MongoDB). My another skills for this position are: Source control management; Investigative skills; Mathematical aptitude; Management skills; work with JS Frameworks and CMS.

  • 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
  • Hourly Rate$30 / Hr
  • Total Earned$88980
  • Experience7 Years

Hello, I’m a Software Engineer with 7+ years of experience in designing and developing user interfaces, debugging, testing and training staff within various technologies. I’m an analytical senior-level software developer with deep expertise in ASP.NET, C#, C++, PHP, Python, JavaScript. Skilled in requirements analysis and project documentation. Able to communicate effectively with both technical and non-technical project stakeholders. Proficient in coding and developing the new program. Leveraging passion and tenacious problem-solving capabilities to develop innovative application solutions.

  • 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
  • Hourly Rate$25 / Hr
  • Total Earned$7621
  • Experience7 Years

I like to solve difficult problems with simple tools. I have experience in building Web Applications, REST Services, creating Databases, low-level programming, etc... I like to learn new technologies. I have experience of team work and I really like it. If you need a good team player - I'm here :) Programming Languages (I use it in production): - Clojure / ClojureScript - Go - Python - JavaScript - C++ - Java/Scala 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ 100% Satisfaction Guarantee: If you are not happy with my work, I will refund with no questions asked. ✅ Over-Delivering: I aim to always delivery BEYOND your EXPECTATIONS rather than just to fill what was ‘Agreed’. ✅ Responsiveness: Being extremely responsive and keeping all lines of communication readily open with my Clients. ✅ Deliver Results: I focus on the key inputs for client and deliver them with the right quality and in a timely fashion. Despite setbacks, I will always rise to the occasion and never settle. I am eager to work with you, to provide high quality work and solution to ensure the product has been delivered ON TIME, ON BUDGET and DOES AND BEYOND WHAT IT INTENDED to do.

  • 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
  • Hourly Rate$25 / Hr
  • Total Earned$6936
  • Experience7 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.