About me
My name is Michel van den Berg and I'm an independent lead full stack developer - preferably .NET and React/Typescript - specialized in building microservices, modular monoliths and everything that comes with it.
You can also call me a software/solution architect, although coding comes first and I don't believe in not coding in such a role. I have followed training by various industry gurus like Udi Dahan and Greg Young.
I work under the company name 'Promontis', which is a contraction of the Latin words 'pro' (for) and 'montis' (of the mountain; my last name). In my spare time, I contribute to open source projects and work on a startup named Stylister.
For fun I watch TV series (anything Marvel) and play the piano.
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Software Architect/Lead Developer
Deloitte
Helping the Enterprise Tax Platform (ETP) - which provides data-driven tax insights for the tax professional - to implement a Modular Monolith.
Technologies used: .NET, C#, Modular Monolith, MassTransit, Microsoft SQL Server, Oracle 19c, Azure, AWS, Vue 3, TailwindCSS, Typescript
Contributor
Piral
Piral allows you to build web apps in React that follow the microfrontends architecture.
Lead developer
Briskergroup
Brisker Group is a full-service HR service provider. Brisker Group is the umbrella name for the brands Pay for People, Holland Employment Experts, Smart Services, Tentoo and Nextpayroll.
Introducing Briskergroup to high-cohesive and low coupling practises. Gradually transforming the codebase to a more (stable) service oriented solution, both in the backend and in the frontend.
Technologies used: .NET, C#, Microservices, MassTransit, Azure, React, TailwindCSS, Typescript
Software Architect
Collenda
Collenda is the market leader in software solutions for the entire credit life cycle.
Trained non-.NET developers to be proficient in .NET so that Collenda could stop with outsourcing and have less risk. Giving guidance on how to move forward from a legacy codebase to a modern way of working.
Technologies used: .NET, C#, WPF, Jenkins, Jira, Confluence
Contributor
HotChocolate
HotChocolate is the leading GraphQL Server for .NET core and .NET classic.
It currently has over 1.4K stars on GitHub.
Contributor
StreamsDB
StreamsDB is the modern stream database for advanced stream processing and event sourcing systems
It provides a rock solid foundation for event-sourced applications that store their state as a series of events, while allowing you write to multiple streams within a single transaction secure and efficient.
Contributor
Eventflow
EventFlow is an async/await first CQRS + ES and DDD framework for .NET
It currently has over 1.3K stars on GitHub.
Lead Developer
ENAI/Trigion
Introducing ENAI and Trigion, one of the leading security system suppliers, to a high performance streaming big data pipeline using Apache Kafka.
Technologies used: .NET Core, C#, Docker, Kubernetes (on-premise), Apache Kafka, RocksDB, Apache NiFi, Lenses, Git and GitLab
Lead Developer & Software Architect
Cito
Helping Cito to support governments, institutions and awarding bodies so that they can develop world-class testing and monitoring systems to complete their educational programmes. From a legacy Windows-only monolith to stable future-proof microservices on multi-browser and multi-device, while simultaneously transforming the IT department.
Technologies used: .NET Core, C#, Docker, Kubernetes, NServiceBus, Microservices, DDD, Javascript, Azure DevOps, Git, OpenID Connect, Angular, CI/CD, DevOps, Azure, Scrum and more
Software Architect
AFAS Software
Creating the next generation of AFAS ERP platform based on their vision to generate software based on a model that represents the client's world instead of programming it.
Technologies used: .NET Core, C#, Azure Service Fabric, CQRS, Event Sourcing, Microservices, DDD, React, TDD, Selenium, TFS, Git, OpenID Connect, Powershell, Cake, CI/CD, DevOps, Azure, Scrum and more
Founder
Stylister
Founder of a small startup that will be able to style interiors in less than a 10th of the time it currently takes by making use of advanced optimization algoritms and artifical intelligence.
Technologies used: .NET Core, C#, Java, Kubernetes (AKS), Docker, EventFlow, (Get)EventStore, StreamsDB.io, Microservices, DDD, Javascript, TDD, React, GraphQL, Git, OpenID Connect, CI/CD, Azure, Optimization algoritms, AI, and more
Microsoft Azure Advisor
Microsoft
Senior Software Developer
Eneco
Rewriting the backend of the new Eneco app. Eneco is one of the largest producers and suppliers of natural gas, electricity and heat in the Netherlands, serving more than 2 million business and residential customers.
Technologies used: .NET, C#, ASP.NET Web Api, Apigee, Azure, Jira, Confluence, SOLID, TDD, Git, CI/CD, Azure, Oracle 19c and more
Cloud Solution Architect
Coöperatie VGZ
Setting up the cloud landscape for VGZ - the second largest health insurance provider in the Netherlands. You can see the platform at vgzapi.nl. The API platform is connected to various legacy services in- and outside the organization, is connected to DigiD and also enables their mobile app.
Technologies used: .NET, C#, ASP.NET Web Api, ASP.NET MVC, WCF, Azure, Azure Storage, Azure Service Bus, Azure API Management, Azure Active Directory (B2C), Azure App Service, DigiD, VSTS, SOLID, TDD, Git, CI/CD, DevOps, Scrum and more
Senior Software Developer
Nike
Developing a mobile app - including the backend - that Nike uses to plan the SKUs of around 600 European stores.
Technologies used: .NET, C#, Xamarin, MvvmCross, ASP.NET Web Api, ASP.NET MVC, Javascript, Azure, OAuth, Jira, Confluence, SOLID, TDD, Git, CI/CD, DevOps, Scrum and more
Full Stack Developer
Maersk
Helping a subdivision of the Fortune 500 company Maersk to conquer the onshore logistics market.
Technologies used: .NET, C#, ASP.NET Web Api, Javascript, Azure, NServiceBus, OpenId, IdentityServer, Jira, Confluence, SOLID, TDD, Git, CI/CD, XLDeploy, DevOps, Scrum and more
Software Developer
Robeco
Delivering multiple software development projects to aid in various aspects of daily business.
For example, a reporting solution for the FTK (Financieel Toetsing Kader). The FTK is mandatory as of by the central bank of the Netherlands (DNB) and is considered complex. The results of the solution are yearly audited by EY.
Technologies used: .NET, C#, VB.NET, WinForms, WPF, Mvvm, ReactiveUI, DevExpress, TFS, SOLID, TDD, Scrum and more
Senior Software Developer
Atos
Microsoft Competence Leader
Atos
Software Developer
UMC St Radboud
Developing an electronic health record system for UMC St Radboud - a university medical center.
Technologies used: .NET, C#, ASP.NET, Javascript, TFS, SOLID, TDD, CI/CD, Scrum and more
Microsoft Student Partner (MSP)
Microsoft
The Microsoft Student Partners is a worldwide recognizable program to sponsor students majoring in disciplines related to technology. The MSP program enhances students' employability by offering training in skills not usually taught in academia, including knowledge of Microsoft technologies.
Microsoft chooses one skilled student from each institution at a time to serve as representatives. MSPs are assumed to further share the knowledge among the academic community by arranging courses; giving presentations and lectures; and initiating projects among the students.
The Microsoft Student Partners is a worldwide recognizable program
to sponsor students majoring in disciplines related to technology.
Particular Software
Udi Dahan's Advanced Distributed Systems Design
Designing large-scale distributed systems is hard. While new technologies make it easier to comply with today's communications and security standards, they don't auto-magically give you a robust and scalable system. See how companies like Amazon and eBay run their systems and learn how to:
- Avoid common pitfalls in distributed systems
- Use loosely coupled messaging communication
- Identify and allocate business logic to services
- Decompose services into layers, tiers, assemblies, and processes
- Design for service management and monitoring in production environments
Skillsmatter
Greg Young's Advanced CQRS & DDD Workshop
This advanced CQRS training dives deeper into discussion on process managers, sagas, and advanced messaging patterns
Gregory Young (author of EventStore) coined the term “CQRS” (Command Query Responsibility Segregation) and it was instantly picked up by the community who have elaborated upon it ever since.
Petabridge
Akka.NET Design Patterns
Delft University of Technology
Computer Science (not finished)
UNLP
NLP Practitioner, Psychology psychotherapy Commucation
my services
Architectural Review
We start with a review of your proposed architecture (which usually goes on two days) at which point, with the feedback you'll receive, we schedule a full week architecture & design workshop where we refactor the solution.
The product of that first week usually includes the identification of top-level business services, their break-down into business components, the use of existing systems and their orchestration within each business service, and the message choreography between them. We usually have about 15 to 20 UML/BPMN diagrams per service at this level.
At that point we usually follow up with twice-weekly conference calls (about an hour each) to make sure that the design effort doesn’t get stuck or take a wrong turn. 2-3 months after that, we usually have another 2 day review. After that, usually we move to a mode of an hour call once or twice a month.