“It depends” should not be the answer “It depends” is a typical answer of an (experienced) consultant. I hear this saying quite often. For a long time, I thought the same way - there are always multiple ways to achieve the required functionality. Some time ago I changed my mind. Let me take you on a tour of my personal development as a consultant. Chapters in a consultant’s career Below I described chapters in a consultant’s career based on my own experienced.

The biggest compliment I received regarding my solution design diagrams was something along those lines: “I do not understand the technical aspects represented on your diagram, but the overall idea looks very clear to me." Sometimes I see technical diagrams by very smart/experienced professionals that are extremely hard to follow. I know that those people know and understand what they are talking about, but those designs are not representing that.

I had an opportunity to speak at the AWS Pop-up Hub. I lead an expert-level, deep dive session about the AWS IoT Greengrass service. During my presentation, I used only one IoT Device, but I explained how to effectively onboard and manage a huge number of connected Greengrass devices. I covered the following topics: How to use the Greengrass Fleet Provisioning plugin to generate unique credentials for every connected device. How to create a custom configuration file to fine-tune the Greengrass service.

I had an opportunity to speak at the DataMass conference. I explained how the nature of input data impacts the design of an IoT data pipe between the edge and the cloud. In other words, how to effectively transfer data between devices and the cloud backend in various scenarios. I covered the following topics in my presentation: How the nature of input data and other constraints (i.e. available network bandwidth) impact the solution design?

I had an opportunity to speak about how to start with the IoT @ AWS in a secure way at the AWS User Group Poland meeting in Katowice. The meeting was held in Leśniczówka Rock’n’Roll Cafe - a very nice wooden building in the middle of Park Śląski. Rock'n'Roll Cafe I covered the following topics in my presentation: What are the main attack vectors and how to defend the IoT ecosystem?

Introduction In this post, I will share my experience regarding the greenfield vs brownfield projects. I asked on LinkedIn if greenfield deployment is easier than brownfield and received the following votes: Below I share my subjective opinion, feel free to reach out if you do not agree with me (I’m always eager to learn). Definitions Let’s start with brief definitions of the green- and brownfield deployments. Greenfield project According to Wikipedia, the greenfield project develops “a system for a totally new environment, without concern for integrating with other systems, especially not legacy systems.