Koen Bekkenutte, Developer in Lisbon, Portugal
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Koen Bekkenutte

Verified Expert  in Engineering

Scalable Architecture Developer

Location
Lisbon, Portugal
Toptal Member Since
March 20, 2015

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

Portfolio

Freelance
Umbraco, WordPress, T-SQL (Transact-SQL), TypeScript, JavaScript, PHP, Python...
ZampleBox
Azure, Microsoft SQL Server, AngularJS, ASP.NET Core, C#, JavaScript, SQL...
WeTrada
Azure, .NET, C#, ASP.NET Core, JavaScript, SQL, Bootstrap, Git, HTML, CSS, CTO

Experience

Availability

Part-time

Preferred Environment

Microsoft Visual Studio, .NET, ASP.NET, C#, .NET Core, ASP.NET Core, JavaScript, SQL, Git

The most amazing...

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

Work Experience

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 (Transact-SQL), TypeScript, JavaScript, PHP, Python, C#, ASP.NET Core, SQL, Bootstrap, Git, HTML, CSS, PostgreSQL, Node.js, Cloudflare

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, C#, JavaScript, SQL, Bootstrap, Git, HTML, CSS

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, C#, ASP.NET Core, JavaScript, SQL, Bootstrap, Git, HTML, CSS, CTO

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#, ASP.NET Core, JavaScript, SQL, Bootstrap, Git, HTML, CSS, CTO

API Developer

2015 - 2015
Litmus (via Toptal)
  • Created a high performance API with synchronization capabilities for external services.
Technologies: Amazon Web Services (AWS), .NET, C#, ASP.NET Core, SQL, Git

.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, C#, ASP.NET Core, JavaScript, SQL, Git, HTML, CSS

PHP Developer

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

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, C#, ASP.NET Core, SQL, Git, HTML, CSS

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, C#, ASP.NET Core, SQL, Git, HTML, CSS

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 (Transact-SQL), JavaScript, PHP, C#, ASP.NET Core, SQL, Git, HTML, CSS

Postvid Consumer Platform

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

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!

Languages

C#, SQL, JavaScript, HTML, CSS, T-SQL (Transact-SQL), 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, .NET Core, Bootstrap, Angular, AngularJS, Windows Presentation Foundation (WPF), PhoneGap, Knockout (Knockout.js)

Platforms

Azure Functions, Azure, WordPress, Umbraco, XAMPP, Amazon Web Services (AWS)

Other

Front-end Development, Architecture, CTO, Azure Service Bus, Scalable Architecture, Windows Communication Foundation (WCF), Cloudflare, Cordova, Big Data

Libraries/APIs

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

Tools

Azure IoT Suite, Microsoft Visual Studio, Git, Subversion (SVN), Mercurial

Storage

Azure Cosmos DB, MySQL, Microsoft SQL Server, PostgreSQL

Paradigms

Functional Programming, Reactive Programming, Concurrent Programming

2005 - 2008

Bachelor's Degree in Computer Science

Windesheim University - Netherlands

JUNE 2020 - JUNE 2023

Microsoft Azure Developer Associate

Microsoft

JUNE 2020 - JUNE 2023

Microsoft Azure DevOps Engineer Expert

Microsoft

FEBRUARY 2020 - FEBRUARY 2024

Microsoft Azure Solutions Architect Expert

Microsoft

DECEMBER 2019 - DECEMBER 2021

Associate Cloud Engineer

Google Cloud

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