Charles Saternos
Software Engineer at Two Sigma
Jersey City, New Jersey, United States
Summary
🤩
Rockstar🎓
Top SchoolCharles Saternos is a software engineer with 12 years of experience building production systems across scientific computing, DevOps, and full-stack projects, currently contributing at Two Sigma from Jersey City. He has delivered real-time image segmentation and embedded TFLite solutions at ExxonMobil, contributed ThinLTO improvements to LLVM through Google Summer of Code, and implemented Docker-over-SSH support in the popular pyinfra tool. Comfortable in C++, Python, Rust/Cursive-style tooling, and front-end tweaks (e.g., DuckDuckGo Instant Answers UI work), he moves between low-level performance optimization and practical developer tooling. Charles is pragmatic about trade-offs—optimizing models for memory and speed while keeping deployability in mind—and enjoys improving developer experience and operability. An active open-source maintainer with a wry “bit-slinging hooligan” persona, he posts additional code at his sourcehut mirror.
12 years of coding experience
6 years of employment as a software developer
Associate’s Degree, Computer Science, Associate’s Degree, Computer Science at Lehigh Carbon Community CollegeBachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at Kutztown University of Pennsylvania
Stackoverflow
265reputation
14kreached
2answers
9questions
Github Skills (21)
tui10
docker10
python10
css10
curses10
configuration-management10
dockers10
html10
rust10
remote-execution10
tmux10
ssh10
cloud-manager9
event-handling9
error-handling9
Programming languages (22)
Github contributions (5)
duckduckgo/zeroclickinfo-goodies
Jul 2014 - Jan 2017
DuckDuckGo Instant Answers based on Perl & JavaScript
Role in this project:
Front-end Developer
Front-end DeveloperContributions:89 commits, 5 PRs, 66 comments in 2 years 6 months
Contributions summary:Charles focused on enhancing the user interface through the implementation of a tmux cheat sheet. Their commits involved restructuring the layout with two columns, improving formatting and spacing, and incorporating HTML text to describe the image. They addressed the styling, including image sizes, font changes, and padding. Further commits included adding image descriptions.
javascriptduckduckgoinstant-answersperlinstant
oppiliappan/dijo
Jul 2020 - Aug 2020
scriptable, curses-based, digital habit tracker
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:10 commits, 2 PRs, 9 comments in 20 days
Contributions summary:Charles primarily worked on enhancing the habit tracking application's functionality and user experience. They addressed a divide-by-zero bug in the views, added features like Ctrl-C handling, and integrated a message system to provide user feedback. Furthermore, the user refactored code to incorporate features such as using a RwLock to manage messages, and implemented modifications to handle user input and application lifecycle events within the Cursive framework. They also made changes to integrate and handle Ctrl-C properly to ensure a smooth user experience during program exit.
habittrackerscriptablerusttui
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