What is a Service Level Objective (SLO) in relation to Error Budget, SLI, alerting, budgeting, and team topologies? #sre #sli #slo open.substack.com/pub/alexewerlo…

We've talked a lot about #SLI and #SLO which stand for service level indicator and objective. But what is a service? This article answers that question with many examples, illustrations, and a metaphor that you're familiar with! #sre #service blog.alexewerlof.com/p/service

I spent 10+ hours collecting 150+ learning sources to help individual contributors become great engineering leaders. But I wanted to do more, so I created a 12-month path to becoming a great engineering leader. This is how I structured it: 🛒 Month 1→3: Develop your product

Why do many organizations fail to adopt and implement service levels properly and what are the practical tips to overcome the pitfalls? #sli #slo #serviceDesign #sre #devOps #metrics open.substack.com/pub/alexewerlo…

👉Be the change you want to see in your team!👈 If you promote a feedback culture BUT you never ask for feedback If you promote autonomy BUT you micromanage your team If you promote psychological safety BUT you barely listen to people. What behaviors are you encouraging?

1) Principal Engineer - The level after staff engineer: blog.alexewerlof.com/p/principal-en… Author: Alex Ewerlöf

Finally! This last article got me write an app in Vue and D3 to visualize different scenarios where percentiles can help select outliers and give a direction to optimization and reliability engineering efforts. blog.alexewerlof.com/p/percentile

Percentile, by Alex Ewerlöf open.substack.com/pub/alexewerlo…

🟠Service degradation is when the quality of the service drops. 🔴If the service entirely stops, it’s a service disruption. 🚩If the disruption takes too long, it’s a service outage. #sre #operations #risk #riskControl #riskManagement #serviceDesign open.substack.com/pub/alexewerlo…

What are the Recurring Expectations for Achieving Staff-Plus Level Across Tech Companies, and Where do Senior Engineers Most Often Fall Short? These are the 3 things I found that, if you do consistency, will make you golden as a Staff-Plus Engineer at pretty much any company.

Everyone is talking about system architecture where Organization Architecture is the real deal! open.substack.com/pub/alexewerlo…

If you want to master site reliability engineering, read these 5 books:

In the context of service levels, there are multiple terms that are related to each other. This article dissects those terms with examples and illustrations to build a solid terminology in the context of service levels. blog.alexewerlof.com/p/service-leve…

How to spot an ivory tower architect? How not to become one? blog.alexewerlof.com/p/ivory-tower-…

Some organizations have a tradition of breaking one role into multiple titles which in turn are assumed by different people. These are common symptoms: open.substack.com/pub/alexewerlo…

#SLI vs #KPI Both SLI and KPI got popularized by Google although they don’t originate there. SLI and KPI are metrics where the “I” stands for indicator. ❌ But that’s where the similarities end. blog.alexewerlof.com/p/sli-vs-kpi

Also tagging the writers so you can follow: • Alex Ewerlöf • Alex Zajac (🍔,🧠) • Milan Jovanović • Nikki Siapno • Gregor Ojstersek • Ryan Peterman • Raul Junco • Petar Ivanov

Cargo culting refers to a phenomenon where people imitate the superficial aspects of a practice or process without understanding the underlying logic or reasons behind it. blog.alexewerlof.com/p/cargo-culting

Humans tend to organize in hierarchies. Each layer of the hierarchy introduces the risk of: 🔴 𝐃𝐞𝐥𝐚𝐲 🔴 𝐃𝐢𝐬𝐭𝐨𝐫𝐭𝐢𝐨𝐧 🔴 𝐑𝐞𝐝𝐮𝐜𝐭𝐢𝐨𝐧 How to reduce the negative impact? blog.alexewerlof.com/p/vod

Async map with limited parallelism in Javascript, by Alex Ewerlöf open.substack.com/pub/alexewerlo…