toptal.com
Contact us: +1.888.604.3188
Koen Bekkenutte, Scalable Architecture Developer in Guangzhou, Guangdong, China
Koen Bekkenutte

Scalable Architecture Developer in Guangzhou, Guangdong, China

Member since February 9, 2015
Koen is a passionate developer with a love for a wide range of technological practices and a keen eye on quality and communication. He brings over a decade of experience in building services and applications, both solo as well as in teams. He can be trusted to complete a project on time and within budget while staying true to expected quality.
Koen is now available for hire
Hire Koen

Portfolio

  • Freelance
    Umbraco, WordPress, T-SQL, TypeScript, JavaScript, PHP, Python
  • ZampleBox
    Azure, Microsoft SQL Server, AngularJS, ASP.NET Core
  • WeTrada
    Azure, .NET

Experience

Location

Guangzhou, Guangdong, China

Availability

Part-time

Preferred Environment

Microsoft Visual Studio

The most amazing...

...thing I've created is an app to help people with limitations get online using only their voice. This was long before the iPhone became popular.

Employment

  • Consultant, Developer

    2005 - PRESENT
    Freelance
    • Built a ticket management system for events.
    • Created numerous company and product websites and applications.
    • Joined existing teams to temporarily boost productivity.
    • Designed and implemented a CRM with automation capabilities.
    • Acted as an external auditor reviewing quality, robustness, and security.
    Technologies: Umbraco, WordPress, T-SQL, TypeScript, JavaScript, PHP, Python

  • Developer

    2016 - 2018
    ZampleBox
    • Worked as a core developer on the main eCommerce product.
    • Helped drive the development of new core business features.
    • Migrated the application from ASP.NET MVC 5 to ASP.NET Core.
    Technologies: Azure, Microsoft SQL Server, AngularJS, ASP.NET Core

  • Tech Lead

    2015 - 2017
    WeTrada
    • Set up a brand new unique online shopping portal.
    • Automated a shopping experience that offers customized communication flows.
    Technologies: Azure, .NET

  • Founding CTO

    2013 - 2016
    Postvid, Ltd.
    • Built a highly scalable back-end service for uploading, handling, converting, and composing user media (photos, videos, and audio).
    • Created a web application for creating a fully customized video greeting card.
    • Created a full-stack order pipeline service for order and payment tracking with full QOS reporting and alerting.
    • Established the technical vision and led all aspects of IT-related development.
    • Conducted research and case studies on cutting-edge technologies.
    Technologies: Azure, Durandal, C#

  • API Developer

    2015 - 2015
    Litmus (via Toptal)
    • Created a high performance API with synchronization capabilities for external services.
    Technologies: AWS, .NET

  • .NET Developer

    2015 - 2015
    hopIN (via Toptal)
    • Migrated over an existing software solution to a more efficient hosting plan on Azure.
    • Solved a number of issues with the application.
    Technologies: Azure, .NET

  • PHP Developer

    2015 - 2015
    Bumptext (via Toptal)
    • Solved numerous issues with the existing software solution.
    • Proposed a path forward.
    Technologies: XAMPP, PHP

  • Azure Expert

    2015 - 2015
    Silec (via Toptal)
    • Helped to create a deployment strategy for hosting the in-house web application on Azure.
    Technologies: .NET, Azure

  • Consultant, Developer

    2011 - 2015
    Web Power
    • Served as product owner and architect for a major new email marketing product.
    • Developed and implemented various web applications and integration solutions for numerous clients.
    • Worked as lead architect on an experimental new back-end system for handling all data transactions for the entire product family.
    • Consulted both internally and externally on various IT-related topics.
    • Handled developer training for clean and testable code with state of the art technologies and practices.
    Technologies: JavaScript, MySQL, PHP

  • Lead Developer

    2006 - 2011
    Infocaster
    • Created services for mass news profiling and analytics.
    • Built a recommendation system matching users based on online behavior, suggesting contacts and sources.
    • Created online web portals for displaying and managing news (similar to Google Now).
    • Created desktop applications for numerous clients, combining features such as RSS tracking, weather information, and commenting.
    • Built various in-house websites and applications for top 500 enterprises.
    Technologies: T-SQL, JavaScript, PHP, C#

Experience

  • Postvid Consumer Platform (Development)

    Postvids are a new breed of direct marketing and impact marketing communication tools. Postvids drive home your brand and campaign messages through hi-definition LCD screens and powerful audio speakers encased in a full color, fully customizable, printed brochure or booklet.

  • WeTrada Website (Development)

    You get together with others who want to buy the same product. You buy the things you love together as a group! Now it’s possible to place orders directly with the manufacturer without having to deal with cost-adding merchants and middle men. Straight from the factory to your home. The savings are spectacular!

  • Toptal Mentor
    Koen is a mentor in the Toptal Global Mentor’s Program. This program is a partnership between Toptal and General Assembly to provide high quality mentorship for students from minority and low income backgrounds who are looking to begin their careers as professional software engineers. Koen shows commitment to diversity in tech by mentoring a General Assembly student every week for a year, covering everything from coding tips and tricks to advice on making it in the industry.

Skills

  • Languages

    C#, T-SQL, SQL, JavaScript, TypeScript, PHP, Python, Java, F#, Scala

  • Frameworks

    ASP.NET Core, ASP.NET Core 2, Aurelia, .NET, ASP.NET, Durandal, ASP.NET Web API, ASP.NET MVC, Bootstrap, Angular, AngularJS, Windows Presentation Foundation (WPF), Windows Communication Framework (WCF), PhoneGap, Cordova, Knockout.js

  • Platforms

    Azure, Azure Functions, WordPress, Umbraco, XAMPP

  • Other

    Front-end Development, Scalable Architecture, AWS, Big Data

  • Libraries/APIs

    jQuery UI, jQuery, SignalR, Node.js, Twitter API, LinkedIn API, Facebook API

  • Tools

    Microsoft Visual Studio, Git, Subversion (SVN), Mercurial

  • Storage

    Azure Cosmos DB, MySQL, Microsoft SQL Server

  • Paradigms

    Functional Programming, Reactive Programming, Concurrent Programming

Education

  • Bachelor's degree in Computer Science
    2005 - 2008
    Windesheim University - Netherlands

Certifications

  • Azure Developer Associate
    JUNE 2020 - JUNE 2022
    Microsoft
  • DevOps Engineer Expert
    JUNE 2020 - JUNE 2022
    Microsoft
  • Azure Solutions Architect Expert
    FEBRUARY 2020 - FEBRUARY 2022
    Microsoft
  • Associate Cloud Engineer
    DECEMBER 2019 - DECEMBER 2021
    Google Cloud

To view more profiles

Join Toptal
Share it with others
Hire the top 3% of freelance developers TM