First becoming a tech lead could be a daunting task. Here lists six surviving tips that might be useful in your first 90 days. Communicate Clearly and Frequently A good tech lead communicates effectively. This makes sure that the team members have a clear understanding of the roles, goals, and any expectations or deadlines…

Every time I start looking into the codebase of a software maintained by others, I feel disoriented because of the complexity of those code. Why are software so complex anyway? In software engineering, complexity refers to the number and variety of components or features in a system, as well as…

This article explains the Architecture of Prometheus. Overview Key Architectural Elements Prometheus Server Prometheus Server is the central architectural element. It is well written in Golang and is battle tested. It performs the following tasks: Discover targets from service discovery. Pull metrics from targets. The targets can be applications, pushgateway or exporters. Store metrics as time-series…

Observability is a measure of how well internal states of a system can be inferred from knowledge of its external outputs. - Wikipedia Considering you have a question about the system, you take a peek at the data you collected previously, and you should be able to get the answer…

One of my close friend once asked me, what do you do as a tech lead at a normal day? I had not thought the question at the time. I summarized a lot. The list goes on and on. After listing a lot, I confessed. I quit coding. I have…

This article teaches how to visualize the architecture for the high level design (HLD) document, so that software engineers and technical writers can enhance communication. A HLD document without diagrams is self-sustained but intangible. Humans prefers visualization over text, as the old saying “a picture is worth a thousand words”…

This article teaches how to write the first sentence for the HLD document, so software engineers and technical writers can precisely convey their intents to readers. The first sentence sets the tone for the whole HLD document. It helps readers and writers both. Readers gets the basic information before reading…

If you’re not familiar with Scikit-learn and Runflow, Scikit-learn is a simple and efficient tool for predictive data analysis. Runflow is a tool to define and run workflows. By mix using both, your machine learning code will be organized better. Why Runflow is Needed? If you just simply follow the code snippets shown on…

Mustache Template has been a very “stable” templating language for years. There have been only a few corner cases are updated in the Mustache specification. However, in recent days, Mustache Specification has a pretty new feature getting updated called “Inheritance”. To get you some idea of what it is, let’s…