Kotlin Developers

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Meet our Developers

Alan Rogers

United States

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As a Senior developer I have worked with databases, PHP, HTML, CSS, JavaScript and everything in between, also, venturing as far as converting Photoshop designs to front-end code.

  • Node js
  • PHP
  • Laravel
  • Codeigniter
  • Object-oriented Programming (OOP)
  • Hourly Rate$35 / Hr
  • Total Earned$11500
  • Experience8 Years

Hi I am a Full-stack developer with about 7 years of experience. I handle any project with any complexity. Languages: C/C++, Java, C#, .Net, SQL, HTML, CSS, PHP, Javascript, Java, jQuery, Angular, React, Bootstrap, HTML, CSS Operating systems: Windows, macOS, Unix, Linux Applications: MS Visual Studio, Visual Code, Eclipse Database systems: MariaDB, MySQL, SQL, SQL Server, MongoDB, ExpressDB, Ingres WHY YOU SHOULD CHOOSE ME? 📌 I am working as a Full-time Freelancer with over 40 hours per week. 📌 I provide a stable code with clear documentation. 📌 I believe in customer's satisfaction first. 📌 I never give an approximate estimation without understanding the requirements. 📌 I give updates on a daily basis. I know that communication is the key to success, if you have any questions or are ready to begin, please reach out to know how I can help you. Thanks

  • 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
  • Stripe
  • Hourly Rate$25 / Hr
  • Total Earned$12770
  • Experience7 Years

I am a Full Stack Developer with expertise in all aspects of the software development life cycle, including requirements analysis, design, development and production support. Fluent in Web Development with strong knowledge of real-time systems and factory automation. The technical skills that I master: Pyhton, JavaScript, ROR, Kotlin, Ios/Android development, Swift, Objective-C, Windows, Linux, MacOs, Bot development, MS Visual Studio, Eclipse, MongoDB, Maria DB, MySql, SQL server, R programming, C, C#, C++, Java, PHP, Matlab, React Native, React.js. Angular.js, Node.js, Express.js, Wordpress, Web development, Web design, Mailchimp, JavaScript/AJAX, PHP, HTML/CSS/LESS/SASS, XML, JSON and 3rd party APIs, Cross-platform and cross-browser, API/codex knowledge, Plugins, Coding standards, SQL, Server config, Adobe Photoshop, Adobe Illustrator, Adobe Acrobat, Adobe PageMaker, QuarkXPress

  • JavaScript
  • HTML5
  • CSS3
  • jQuery
  • Ajax
  • Bootstrap
  • UI / UX
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • Wordpress
  • PHP
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • SEO
  • Ruby
  • 3D Animator
  • Hourly Rate$30 / Hr
  • Total Earned$24220
  • Experience8 Years

Hello, I'm Hasan from Turkey. I'm an experienced software engineer who constantly seeks out innovative solutions to everyday problems. I'm also skilled in NFT development and In my 6+ years in this industry, I've honed my analytical thinking and collaboration skills, and I love working with teams. I’m skilled with PHP, JS, Python, CSS, HTML and surely skilled in work with Database (MySQL, MongoDB). Skills in NFT developing: High-level programming language (C++, Golang, C#, JavaScript, Solidity, Python, Ruby, and Java), Ninja-level skills with Ethereum smart contracts, Web3 integration, Experience in generative art a huge bonus, Extensive experience with with ERC-721 and ERC-1155 standards, Experience in JavaScript/TypeScript, Proficiency in PostgreSQL for database - TypeORM for ORM etc.

  • 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
  • Hourly Rate$23 / Hr
  • Total Earned$20860
  • Experience6 Years

HI! I have 8+ years of hands-on experience in developing scalable, high-performance, modern and industry-scale web applications on industry leading frameworks Scope of my professional skills includes: ✓ Technologies: JavaScript, React, WordPress, Shopify, ✓ Frameworks: Node.js, React.js, Vue.js, jQuery, Bootstrap. ✓ Mobile development: React Native. ✓ Web: CSS 3, HTML5. ✓ Databases: MongoDB, MySQL. ✓ Deployment: AWS, Digital Ocean I am proficient in: ✅ The Front-end Web App environment using complex software and only the most innovative systems(Angular, React, Vue) ✅ The Mobile App environment using complex software and only the most innovative systems(React Native, Ionic, Java/Kotlin, Swift) ✅ Forming a simple back-end environment for you to access (using Firebase, NodeJS, PHP/MYSQL) ✅ Creation and integration of API's for faster more responsive apps (REST and SOAP). ✅ Simpler user-friendly interfaces with full knowledge of MVC & architectural patterns development. Look forward to discussing your project requirements and excited to start working with you.

  • 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
  • Stripe
  • Hourly Rate$30 / Hr
  • Total Earned$0
  • Experience8 Years

Hello,I'm a full stack developer with 8 years of experience in web development. I've designed and implemented infinitely scalable server architectures. Specialize in designing simple solutions to complex large-scale problems. I have worked with ReactJS, Angular, Express, PHP, Laravel, HTML5, CSS3. How am I different. ? My ability to accept changes and learn. When I started my carrier in development I was developing just PHP, javascript, then it all suddenly evolved into so many technologies, so did I. My Skillset involves following : ~Software Development & Design ~Project Management ~Team Management ~Client Relationship Management ~Application Support & Maintenance ~Unit Testing ~Core PHP 5 & OOPs Concepts ~MVC Architecture & PHP Frameworks ~PHP CMS ~Database Design & Management ~API & Webservices ~Web Security

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • React Native
  • C++
  • C#
  • Python
  • Hourly Rate$30 / Hr
  • Total Earned$9750
  • 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.