Dennis Vis.

Background

Having started my software career as a frontend developer, some 12 years ago, I soon after took on backend development as well. Since I’ve never stopped doing either I’ve effectively been a full-stack developer for my entire career.

Along the way I’ve been driven by the desire to be able to build and deploy software systems from first line of code to monitoring in production. This has led me to specialize in fields such as CI/CD, DevSecOps, Big Data, MLOps, SRE, cloud architectures and software design.

This broad set of skills and extensive experience means I’m effective in situations where I mediate between people of different technological backgrounds and skill levels.

  timeline
    Frontend Developer : HTML / CSS / JavaScript / jQuery
    Backend Developer : Java
                      : CMS Implementations
                      : Frameworks
    Fullstack Developer : Angular / React / Vue / Svelte
                        : Scala / Python / Go
                        : Best Practices
                        : Software Design
                        : CI/CD
                        : Persistence Technologies
    Cloud Architect : Containers / Kubernetes
                    : Networking / Security / Eventing / Scalability / Big Data
                    : Google Cloud Architect Certification
                    : DevSecFinOps / MLOps
                    : SRE
    Technical Leadership : Domain Driven Design
                         : Clean Architecture
                         : CTO

  erDiagram
    Education }|--|{ HappyDeveloper : enables
    NiceDeveloperExperience ||--|| CodeQuality : requires
    HappyDeveloper }|--|| NiceDeveloperExperience : develops
    NiceDeveloperExperience ||--|{ HappyDeveloper : creates
    CodeQuality ||--|{ HappyDeveloper : creates
    HappyDeveloper }|--|| CodeQuality : improves
    HappyDeveloper ||--|{ GoodSoftwareDesign : designs
    ProperImplementation }|--|| CodeQuality : requires
    GoodSoftwareDesign ||--|{ ProperImplementation : requires
    ProperImplementation ||--|{ HappyCustomer : creates
    HappyCustomer }|--|| HappyBusiness : creates
    HappyBusiness ||--|{ HappyDeveloper : creates

Mission

My mission is to teach development teams how to design and implement software that delights both developers and the business.

Too many times I’ve encountered code bases that are dreadful to work with, difficult to maintain, contain many bugs and simply do not deliver the value that the business needs them to. Often these are built by well-motivated, smart people. But these developers simply lack the knowledge needed to built something better.

I aim to turn these code bases around with the help of the developers that built them. By sharing my knowledge about topics like design patterns, build and test automation, microservices and cloud native architectures, I teach them how to build and maintain systems that are a joy to work with, easy to extend and can quickly adjust to changes in the business.

Approach

Theory is vital for a complete understanding but I’ve noticed that for many developers the ‘click’ happens when they actually see the theory being put into practice. That’s why my approach is based on leading by example. As part of your development team I will take the members along in showing how I write software and why.

When it comes to understanding the software needs; I’ll have to understand the business. This means getting to know the people which make up the business. From day one I’ll be setting up meetings with stakeholders and will start to form a picture of what is going well, where the challenges reside and how I can be most effective.

  pie
    "Development": 30
    "Code Reviews" : 20
    "Consultation": 20
    "Coaching" : 20
    "Workshops": 10