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Hi,

I'm Jannes Ströhlein

I build internal web tools, APIs, and device software that automate workflows and integrate hardware reliably into your systems.

In my 5 years of experience in the field, I acquired many useful skills that you can see in more detail in the section below.

Learn more about me

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Solutions

.NET Desktop Development

I have worked with a variaty of .NET desktop frameworks. On the Windows only front I have used WPF, Windows Forms, UWP and also experimented with WinUI 3. When tackling cross platform tasks I mostly used Avalonia but I have also worked with MaUI. Furthermore I have experience with ASP.NET for backend service development.

WEB Full Stack Web Development

I am a full-stack web developer with a focus on building modern, responsive, and user-friendly web applications. Using cutting edge frameworks like Vue, I build responsive adaptable and modern frontends that integrate perfectly with monolithic and microservice backends written in high performance languages.

My Skillsets

I have a wide range of skills that I have acquired over the years. I am always eager to learn new things and apply them to my projects. Here are some of the skills that I am most proud of.

Development

I love to design software architecture and implement it in code. I have experience in many languages and frameworks.

Languages I speak

C#, Java, Python, TypeScript, JavaScript and some C++ & Rust

Tools I've worked with

Git, Visual Studio, Visual Studio Code, JetBrains Rider, JetBrains PyCharm, JetBrains IntelliJ IDEA

Planning

Much time is spent planning and designing the software before writing a single line of code. I have experience with a variety of planning tools and methodologies.

Example workflows

PlantUML, Trello, Jira, Obsidian

DevOps

I have experience with a variety of DevOps tools and methodologies. I am always eager to learn new things and apply them to my projects.

Tools I use

GitHub Actions, Jenkins, Docker, Kubernetes

Other skills I have

Linux Administration, Firewall, Reverse Proxy, Load Balancing

Testimonials

Here is a Testimonial by one of my long time clients with whom I have worked on multiple complex projects over the years. Beside it you can find one of my Fiverr reviews.

Jannes has become my first choice for complex software projects involving novel UIs. During my 40+ year career in Silicon Valley I worked with hundreds of contract engineers, but Jannes is one of the very best. He quickly understands project details, is very productive, communicates well, and completes projects on schedule.

Complex hardware + software projects never proceed exactly as expected. Despite these inevitable challenges, Jannes often went 'above and beyond' to reach a successful result. And he sometimes recommended feature improvements that were not in the original project definition.

Working six time zones apart was never a problem either. In some cases I would request project modifications at the end of my workday and find a new version waiting the next morning. Jannes' English communication skills are excellent and helped to create a very productive working relationship.

I highly recommend Jannes to be a key contributor to your next complex software development program.

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Dave BellCEO at UVCense
U

UVCense

Fiverr Client

5 out of 5

Just as on several previous projects, Jannes was very prompt and professional in his development work. He is willing to go above and beyond the project requirements to make his delivery as optimal as possible. I highly recommend him! I also find Jannes very easy to communicate with in English.

Source: Fiverr

This is one of my 40 Fiverr reviews. Click here to load another one.

Contact me

If you are interested in working with me, please don't hesitate to contact me. I'm always open for new projects and I'm looking forward to hearing from you.