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Real World Engineering Challenges

Building Bluesky: a Distributed Social Network (Real-World Engineering Challenges)
Bluesky is built by around 10 engineers, and has amassed 5 million users since publicly launching in February this year. A deep dive into novel design…
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Gergely Orosz
 and 
Elin Nilsson
Scaling ChatGPT: Five Real-World Engineering Challenges
Just one year after its launch, ChatGPT had more than 100M weekly users. In order to meet this explosive demand, the team at OpenAI had to overcome…
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Gergely Orosz
6
Building Meta’s Threads App (Real-World Engineering Challenges)
The Threads app was downloaded by more than 100M people on launch week. How did the engineering team build the app, and handle an unexpectedly intense…
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Gergely Orosz
1
Interesting Learnings from Outages (Real-World Engineering Challenges #10)
A DNS mystery at Adevinta; A failover causing an outage at GitHub; The challenge whether to do a rollback at Reddit; and the difference between public…
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Gergely Orosz
Inside Datadog’s $5M Outage (Real-World Engineering Challenges #9)
The observability provider was down for more than a day in March. What went wrong, how did the engineering team respond, and what can businesses learn…
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Gergely Orosz
4
Real-world Engineering Challenges #8: Breaking up a Monolith
A deep dive into how Khan Academy took a 1 million-line Python monolith and split it into ~40 Go services in a more than 3 year-long project.
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Gergely Orosz
4
Real-World Engineering Challenges #7: Choosing Technologies
Choosing frameworks, languages and architecture approaches at Trello, Birdie, MetalBear and Motive.
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Gergely Orosz
3
Real-World Engineering Challenges #6: Migrations
essons on migration projects from Box, Stripe, Pinterest, Doordash, LinkedIn and others.
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Gergely Orosz
Real-World Engineering Challenges #5
Resilient payments systems, large-scale data storage with OLTP and OLAP systems, platform team challenges, and more.
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Gergely Orosz
4
Real-World Engineering Challenges #4
What platform engineering is, microservice overload and migrating thousands of workflows.
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Gergely Orosz
Real-World Engineering Challenges #3
Circular dependencies in the Roblox outage, being a principal engineer at Amazon, fraud detection utilizing JIRA, and more.
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Gergely Orosz
Real-World Engineering Challenges #2
C++ code sharing, accessible colors, migration patterns and selling more milkshakes. Issue 2.
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Gergely Orosz
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