Hell Oh Entropy!

Life, Code and everything in between

About Me

I am Siddhesh Poyarekar, a programmer with a keen interest in operating systems development, particularly in the development toolchain and base libraries. I am mainly interested in writing code for Free and Open Source Software.

Projects and contributions


GNU Tools Cauldron 2017

FOSSAsia 2017

FUDCon Phnom Penh 2016

Linaro Connect: BKK 2016

GNU Tools Cauldron 2015

nullcon 2014


Gave a talk on internal implementation of malloc in glibc.

FUDCon Pune 2011



Employment History


Tech Lead (Mar 2016 - current) Toolchain Engineer (Sep 2015 - Mar 2016)

GNU toolchain optimization for ARM processors.

Red Hat

Senior Software Engineer (Sep 2012 - Sep 2015)

Work on glibc upstream as well as maintain glibc on RHEL and Fedora.

Software Maintenance Engineer (Sep 2011 – Aug 2012)
Senior Technical Support Engineer (Aug 2010 – Sep 2011)
Technical Support Engineer (Jan 2009 – Aug 2010)

Provide technical expertise and bug fixes for Red Hat Enterprise Linux. Primary domains of expertise: Tools (glibc, gcc, gdb), MRG Messaging (Apache qpid), Desktop (gtk, Xlib).

Tata Consultancy Services Ltd.

Assistant Systems Engineer (Sep 2006 – Jan 2009)

Educational Qualification