Dutch & Bold is the company registration under which I perform my freelance tasks.

Priva is an international supplier of horticultural and building automation products. Within Priva they develop the hardware and the software for their own products. The software development team consists of more than 120 people spread over several teams who work together towards one goal.Together with a scrum team I have been working on new developments within Priva with regard to purchasing service subscriptions. In addition, I have been responsible for stabilising local development and helping to improve the stability of the system.* Developing new and working on existing links with Zuora* Developing new and working on existing links with Microsoft Dynamics CE and Microsoft Dynamics FO* Developing new and working on existing links with other internal Priva services in both C# and Typescript* Extending and adding API endpoints in ASP.NET with regard to the links* Extending and adding Azure Functions with regard to the links* Add missing unit tests* Add missing local test and development capabilities* Continuous refactor efforts made when possible* Dockerize an existing Typescript project periodically running 'to completion' within Azure.* Maintain and develop pipelines in Azure DevOps* Maintaining and developing the Azure cloud infrastructure* Been part of a scrum team and participated in associated activitiesWith my competences I have not only made a positive contribution, which has resulted in new functionalities, but also contributed to the overall stability of the existing system.ToolingC#8/9 - .NET Core 3.1 / .NET 5 - Powershell - Azure - Azure Devops - Masstransit - MSSQL - Git - Linux - Azure Service Bus - Azure Storage - Azure Functions - Azure App Service - Azure Table Storage - Azure Run Books - Azure Container Instances

Flanderijn is a large Dutch debt collection and bailiff. They work internally with an application to keep track of their customers' payments and arrangements. They have set up a separate team for the connections with large customers such as ABN or Achmea. I have been part of this team.My tasks consisted of helping with the further development of these APIs in which these large customers can upload new files and status updates into the Flanderijn system.Some of the activities I have performed here are:* Take part in developing and expanding the domain with new business logic* Designing, communicating and developing new api endpoints with end customers* Re-factoring existing code base where, among other things, SOLID principles were missing* Re-factoring existing Azure Devops to new format yaml* Re-factoring ARM templates so that they can be used more flexibly* Develop Azure functions that act as microservices* Mass transit introduced for communication between APIs and backends* Develop a blazor dashboard for viewing service bus messages.* Maintain and develop pipelines in Azure DevOps* Maintaining and developing the Azure cloud infrastructure* Been part of a scrum team and participated in associated activitiesPartly because of these activities, I was able to make a valuable contribution to improving the maintainability of the code base, and cleared the way for other developers to be able to join this team more easily, as well as to give my colleagues insights into how certain implementations can be better equipped.ToolingC#8/9 - .NET Core 3.1 / .NET 5 - Blazor - Azure - Azure Devops - Masstransit - Mediatr - MSSQL - Git - Linux - Azure Service Bus - Azure CosmosDB - Azure Data Factory - Azure AD - Azure Storage - Azure Functions - Azure App Service - Azure Table Storage

Events Travel is an event and travel agency with a large customer base in the football domain. The company largely deals with the purchase and sales of tickets for events such as football matches.The company mainly has been working with excel sheets to keep track of purchases and sales. Together with a team of professionals I was responsible for developing the new logistics system for keeping track of these purchases and sales. Two new teams were created, a back-end and a front-end team. I myself have been part of this back-end team and some of the activities I have performed are:* Outlining the UL, bounded context and domain of the company* Developing the domain (DDD)* Setup the infrastructure inspired on Microservices architecture e-book from Microsoft* Develop API endpoints for event creation and seat purchase and sales* Develop links with partners for hotel, event and price data collection* Developing links with AFAS* Setting up cloud infrastructure based on Kubernetes* Setting up CI/CD pipeline in Bitbucket* Been part of a scrum team and participated in associated activities* Organized two weekly back-end meetings for knowledge transfer to fellow developers. Topics included discussing new techniques and explaining the use of various design patterns.* Conduct job interviews with potential new back-end developersWith my help, Events Travel has a logistics system with millions of turnover running flawlessly. The data is now a lot more consistent and they have been able to make more purchases and sales with less staff requirements, ensuring a future in which they can grow.ToolingC#8 - .NET Core 2.1 - Blazor - PostgreSQL - Masstransit - Mediatr - Kubenetes - Git - Linux - Jira - AWS Incognito - AWS S3 - AWS Lambda - AWS DynamoDB - AWS EC2 - AWS VPC - AWS API Gateway - AWS DocumentDB

For Floro I provided temporary insight and reinforcement for the development of the Freely platform. This platform is a match maker for catering and temporary catering staff. A catering entrepreneur can temporarily hire catering workers via this platform. Some of the activities I have performed are:* Developing the web application as agreed with the client, including search options for staff and registering as an entrepreneur or staff.* Developing links with AFAS* Developing links with Verloning BV for the payment of personnel* Developing links with the Chamber of Commerce for retrieving data catering entrepreneur* Generating invoices to both the catering entrepreneur and staff.* Introducing design patterns and solid principles to the other developers of this company.* Been part of a scrum team and participated in associated activitiesWith my help Floro has grown knowledge wise and have delivered a product to FreelyToolingPHP - Laravel - Symfony Components - Vue.JS - MariaDB - AWS S3 - Git - Linux - Jira

With 23g.nl I worked with the start-up company TRVL that was founded by ex-Apple employee Jochem Wijnands. TRVL focuses on booking hotel rooms.With an eight-person team, we have developed Jochem's vision into a hotel comparison and booking platform. Hotels from all over the world were served with price data from all major hotel platforms. Some of the activities I have performed are:* Develop APIs that make data available to the front-end team* Developing links with, among others, Booking.com, Expedia, Agoda and hotels.com to collect hotel information, room information and room prices* Indexing and applying filters to the hotel data in Elasticsearch* Been part of a scrum team and participated in associated activities* Conduct job interviews with potential new back-end developersToolingPHP - Laravel - Symfony Components - MariaDB - Vue.JS - Git - Linux - Jira - AWS S3 - AWS EC2 - AWS Lambda - AWS DynamoDB - AWS Aurora

POS4 is a cash register software company. They provide total solutions for the hospitality industry. The cash register software is a windows application written in C#/.NET. In addition to this cash register software, POS4 also offers a service for developing customized websites for online ordering of take-away or delivery orders. These websites are linked to the cash register software that runs in the store. A separate team has been set up for the development of these websites, of which I was part. Some of the activities I have performed are:* Develop a basic framework that can be used within the frameworks of the Laravel Framework for rapid development of new websites* Developing websites for several catering chains, including De Bezorgbeer and Taco Mundo* Adding new custom features to existing websites.* Deploying and maintaining websites on Linux VPSs* Conducting job interviews with potential new back-end developersPartly due to these efforts, the throughput speed of new websites for clients has dropped significantly and by developing a stable reusable base, further development of new features or bug fixes automatically became widely available for all existing and new customers.Tooling:PHP - Laravel - Symfony Components - MariaDB - Git - Linux