Linux Kernel OS Developer

About the role

Join IBM's newly created team in Waterford to enhance the Linux kernel for IBM Z and LinuxONE platforms. You will work on low‑level kernel development, virtualization concepts such as KVM, and confidential containers for Kubernetes, collaborating with global IBM teams and open‑source communities.

Key responsibilities

• Design and specify new kernel enhancements and virtualization features.
• Write, test, and debug C/C++ code within the Linux kernel.
• Perform performance analysis, bug fixing, and problem determination.
• Submit patches to upstream repositories and engage with open‑source maintainers.
• Support client issues and contribute to continuous integration pipelines (CI/CD).

Required profile

• Bachelor's degree in Computer Science or related field.
• Strong passion for low‑level software development and open‑source contribution.
• Ability to work onsite three days per week in a hybrid model.

Required skills

• Proficiency in C and C++ for kernel development.
• Understanding of OS internals: memory management, task scheduling, interrupts, device drivers.
• Experience with Git and scripting in Python.
• Familiarity with CI tools such as Jenkins.
• Knowledge of I/O technologies: PCI, NVMe, RDMA.
• Experience with IBM Z architecture, Z assembler, and related I/O concepts.