Daniel Pepper
Engineer at Gusto
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolDaniel Pepper is an engineer and startup advisor with 11+ years of experience building and scaling mission-critical systems across startups and tech giants. He combines deep technical chops—distributed compilers, internet-scale crawlers, bioinformatics pipelines—and hands-on engineering with organizational development to accelerate teams and leaders. At Facebook he trained and scaled engineering programs internationally, and as founder of Engineering10x he migrated billions of DB records, sequenced bacterial genomes, and advised/acquired startups. More recently he improved Chime’s availability to 99.9%+ through architectural controls and developer tooling and now brings that operating rigor to Gusto. An active open-source contributor in the Ruby/Rails ecosystem (notably backend work on flipper feature flags), he emphasizes code maintainability, performance, and practical simplification. He’s motivated by solving critical scaling problems and tailoring solutions to amplify individual and team impact.
11 years of coding experience
20 years of employment as a software developer
University of California Santa Cruz
Stackoverflow
15reputation
1kreached
0answers
3questions
Github Skills (15)
ruby10
rspec10
ruby-rails10
rails10
feature-flags10
configuration-file9
configurations9
configuration-management9
thread-safety8
performance-optimization8
api7
json6
user-interface6
javascript6
java6
Programming languages (8)
Github contributions (5)
flippercloud/flipper
Oct 2021 - Jul 2022
🐬 Beautiful, performant feature flags for Ruby.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 12 commits, 14 PRs in 9 months
Contributions summary:Daniel primarily contributed to the project's backend logic, focusing on feature flag configurations and related testing. Their work involved modifying specifications for Rails, including setting up environment variables for feature flag configurations like token and URL, and also added specifications for webhooks. The user also addressed thread safety issues and refactored code using the `.tap` method, demonstrating a focus on code maintainability and performance. They also made modifications to adapters like Failover and Failsafe.
dallirolloutabtestingbullcapistrano
dpep/py_sqlalchemy_lightening
Feb 2018 - Nov 2022
Making SQLAlchemy great again
Contributions:89 commits, 3 PRs, 51 pushes in 4 years 9 months
sqlpythongreatsqlalchemy
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