Jimmy Mena
Core Software Engineer at ClickHouse
Esplugues de Llobregat, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolJimmy Mena is a Core Software Engineer with a PhD in Computer Architecture and over a decade of hands-on experience building high-performance, scalable systems in C++, CUDA, Protobuf and client-server architectures. He blends deep research expertise from roles at Barcelona Supercomputing Center and CERN with production-grade engineering at banks and analytics companies, specializing in distributed task-based runtimes, heterogeneous HPC, and GPU-accelerated data processing. Jimmy has authored papers and extended programming models (OmpSs-2, Nanos6) to enable distributed dataflow and asynchronous task parallelism, and has practical experience optimizing Kalman filters for LHCb triggers with up to 10x speedups. At BBVA he translated prototypes into robust, instrumented C++ services with improved traceability and recovery, and more recently focused on GPU sorting/grouping performance at scale. He contributes to prominent open-source projects such as the GNU Emacs mirror, demonstrating attention to low-level details like API migrations and display-engine enhancements. Based in Catalonia, he pairs academic rigor with pragmatic performance engineering to solve complex problems that matter to both businesses and large-scale science.
11 years of coding experience
10 years of employment as a software developer
Master's degree Nuclear Physics, Master's degree Nuclear Physics at Instituto Superior de Tecnologias y Ciencias AplicadasUPC Universitat Politècnica de CatalunyaMaster's degree High Performance Computing, Master's degree High Performance Computing at SISSA
Github Skills (9)
code-editor10
editors10
text-editor10
editor10
lisp10
api9
apim9
web-development8
javascript8
Programming languages (11)
Github contributions (5)
emacs-mirror/emacs
Aug 2020 - Nov 2020
Mirror of GNU Emacs
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:30 commits in 2 months
Contributions summary:Jimmy made several contributions to the Emacs mirror repository. They fixed a typo in a Lisp file related to face attributes. They also updated the code to substitute deprecated WebKitGTK+ API calls with JavaScriptCore GLib API calls, demonstrating an understanding of web component integration. Additionally, the user added a new parameter ":extend" to face attributes, which will be used in the display engine later.
gnu-emacsspacemacsgnuemacsemacs-lsp
Ergus/mini_dotemacs
Nov 2019 - Dec 2022
Contributions:134 commits, 51 pushes, 1 branch in 3 years 1 month
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