Grace Yan
Head Of Mobile Development Growth at 1&1 Mail & Media
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolGrace Yan is a results-driven Head of Mobile Development Growth based in Berlin with over a decade of engineering and leadership experience scaling teams across startups and multinational companies. She combines hands-on expertise in native Android, Java/Kotlin, C#, and C/C++ with proven success managing 30+ engineers, aligning product and tech strategy, and delivering market-ready mobile and backend systems. Her background includes building high-impact consumer apps (including a secure Android messenger with ~100k users and multimedia features at Yahoo!) and leading cross-functional product lines at Mobimeo. An active contributor to notable Scala open-source projects like scala-steward, fs2, cats-effect, and http4s, she brings deep backend craftsmanship—improving text encoding, type-class derivations, and HTTP/2 correctness—alongside mobile leadership. Known for relentless execution and coaching engineering leads, she excels at turning strategic objectives into measurable delivery while retaining a developer’s attention to correctness and performance.
8 years of coding experience
25 years of employment as a software developer
Bachelor's degree Electrical Electronics and Communications Engineering, Bachelor's degree Electrical Electronics and Communications Engineering at University of Illinois Urbana-Champaign
English, Chinese, Japanese, German, Spanish
Github Skills (27)
dependency-manager10
asynchronous10
dependency-management10
cats-effect10
typeclass10
github10
dependency-analysis10
testing10
http10
bots10
scala10
stream10
monad-transformers10
gitlab10
http-server10
Programming languages (12)
Github contributions (5)
scala-steward-org/scala-steward
Feb 2022 - Nov 2022
:robot: A bot that helps you keep your projects up-to-date
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 12 commits, 3 PRs in 9 months
Contributions summary:Grace primarily contributed to the core functionality of the scala-steward project, which is a bot designed to keep projects up-to-date. Their work included adding support for PR labels on GitHub and generalizing the labeling to other git hosters like GitLab. They modified core modules to implement these features, which required changes in both data structures and the VCS API implementations. Furthermore, they updated the CLI to incorporate label support configuration and added regex filtering capabilities for labels, enhancing the bot's functionality and configuration options.
scala-cliazure-reposdependenciesupdate-servicemaven
http4s/http4s
Aug 2021 - Dec 2022
A minimal, idiomatic Scala interface for HTTP
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 4 commits, 5 PRs in 1 year 4 months
Contributions summary:Grace primarily focused on improving the HTTP4s server middleware and HTTP/2 implementation. Their contributions included adding checks for allowed entities within the GZip server middleware and fixing formatting issues. Furthermore, the user added tests to prevent GZip encoding of responses with no-entity status codes. They also addressed a critical issue in the Ember HTTP/2 implementation, ensuring query parameters are included in the :path pseudo header, aligning with RFC specifications.
idiomatichttp-clientscalafs2typelevel
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.