Introduction

IBM Software infuses core business operations with intelligence-from machine learning to generative AI-to help make organizations more responsive, productive, and resilient. IBM Software helps clients put AI into action now to create real value with trust, speed, and confidence across digital labour, IT automation, application modernization, security, and sustainability. Critical to this is the ability to make use of all data, because AI is only as good as the data that fuels it. In most organizations data is spread across multiple clouds, on premises, in private datacentres, and at the edge. IBMs AI and data platform scales and accelerates the impact of AI with trusted data, and provides leading capabilities to train, tune and deploy AI across business. IBMs hybrid cloud platform is one of the most comprehensive and consistent approach to development, security, and operations across hybrid environments-a flexible foundation for leveraging data, wherever it resides, to extend AI deep into a business.

Your role and responsibilities

This position is for an experienced Linux GNU/Open Source Compiler developer who has experience developing, optimizing and tuning code to a specified Hardware Architecture. While the target architecture of this work will be the IBM POWER architecture, experience tuning to x86 or ARM architectures will be directly applicable. As a developer on the Linux on Power team you will be responsible for:

Working with and interlocking with other internal teams and with the Open Source Community for defining, designing, developing and testing Linux on Power specific features in the GCC compiler. Ensuring that those features are accepted upstream and incorporated into the appropriate Linux distributions.

In addition to design and development work you will be responsible for working issues and defects including problem determination, problem recreation, providing fixes, validating fixes and getting fixes accepted by the Community. Developers in this position are required to assist with resolving customer critical situations, for assisting with or leading proof of concepts and for providing technical guidance and consulting for pre-sales and post sales engagements.

As a Open Source Compiler Developer you will,

Enhance, optimize & maintain open source Linux compiler (GCC) for IBM Power processor (ppc64le) architecture
Update open source toolchain to enable new IBM Power processor functions and instructions
Work with open source community to upstream code, enabling the ecosystem to leverage new generation IBM Power processor
Resolve functional issues including recreation & analysis, proposing & validating fixes and working with the community to upstream fixes.
Assist resolving customer critical situations, lead proof of concepts and provide technical guidance & consulting for pre-sales and post sales engagements.

This role requires expertise with the POWER instruction architecture, the GNU Compiler Collection (GCC) compiler, Binary Utilities (assembler/loader). Familiarity with software builds, bring-up, test and performance analysis tools used by Linux on Power is desirable along with general hardware skills. Applicant will be engaged in performance analysis and tuning utilizing the POWER instruction profiling tools. Candidates must have the ability to work in a team based environment with global and remote team members.

Candidate should have experience with C/C++, scripting languages, assembler, familiarity with Bugzilla, GIT, open source development tools, simulation tools, performance analysis tools and working with mailing lists.

Required education

Bachelors Degree

Preferred education

Masters Degree

Required technical and professional expertise

. Strong interest in and understanding of Computer Architecture, Operating Systems, Compilers, Runtimes, low level debugging and tracing. Effective communication and collaboration skills

. 3+ years of experience developing in OS-level languages like C or C++

. 2+ years of experience in assembly language

. 1+ year experience in Open-source development and related tools such as git, and GitHub.

Preferred technical and professional experience

. Experience in low-level programming involving interaction with C++ runtime, OS, threads, memory management, and assemblers.. Experience debugging, tracing, and profiling code for resolving functional and performance issues.

. Experience in IBM AIX, Linux on POWER and Z

. Experience working in the open software community projects as a contributor or committer. Exposure to other compilers like LLVM, GoLang

Open source compiler developer