Daniel Schobel

Zurich, Zurich, Switzerland

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Summary

🤩

Rockstar

🎓

Top School

Daniel Schobel is a pragmatic polyglot and functional-programming enthusiast with 16 years of experience building and operating large-scale distributed systems. He led engineering teams at Twitter—most recently as Senior ML Engineering Manager for a 20+ engineer Societal Health group—and previously managed core infrastructure such as Direct Messages for 100M+ daily users. Technically hands-on, he contributed to foundational open-source projects like finagle/finatra and twitter/util, improving HTTP stacks, encoding performance, and server reliability. His work spans backend, DevOps and ML productionization, with a knack for pragmatic language and architecture choices informed by category-theory curiosity. Based in Zurich, he holds BS and MS degrees in Computer Science from Washington University in St. Louis and completed Hacker School in 2013. Colleagues describe him as a militant pragmatist who pairs deep systems expertise with strong execution and people leadership.

16 years of coding experience

15 years of employment as a software developer

winter 2013 batch, winter 2013 batch at Hacker School

BS and MS Computer Science, BS and MS Computer Science at Washington University in St. Louis

English

Stackoverflow

Stats

498reputation

12kreached

0answers

9questions

Github Skills (29)

application-framework10

utilities10

lib10

testing10

app-framework10

http10

finagle10

java10

scala10

javas10

utility10

build-automation10

finatra10

web-framework10

data-structure9

Programming languages (6)

JavaC++ScalaPHPHTMLRuby

Github contributions (5)

twitter/twitter-server

Oct 2014 - Dec 2018

Twitter-Server defines a template from which services at Twitter are built

Role in this project:

Backend Developer & DevOps Engineer

Contributions:1 release, 21 commits, 7 comments in 4 years 2 months

Contributions summary:Daniel primarily focused on modifying the build process and server configurations for the Twitter server. They addressed issues related to reference leaks and refined the admin server's shutdown sequence. Additionally, the user updated the project's dependencies, including bumping versions of core components like util, finagle, and finatra. This indicates their involvement in maintaining the project's build infrastructure and core server logic.

twitterfinaglefinatra

twitter/util

Aug 2014 - Dec 2018

Wonderful reusable code from Twitter

Role in this project:

Back-end Developer

Contributions:1 release, 39 commits, 21 comments in 4 years 4 months

Contributions summary:Daniel primarily focused on improving the `twitter/util` library, contributing to core functionality and performance. Their work included reimplementing and extending character set encoding/decoding for `Buf` objects, enhancing the library's capabilities for handling different character encodings. Furthermore, the user made optimizations to the `AsyncSemaphore` and `ConcatBuf` classes, and refactored code to improve the performance of detached promises and string encoding. The user also contributed to testing by implementing and extending existing test suites.

twitterfinaglescalautility

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