AIX Developer (L3 -Support )

International Business Machines Corporation; Bengaluru; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

IBM Bengaluru seeks a senior AIX Kernel L3 Support & Development Engineer to join the operating systems team. This role blends customer-facing Level 3 support with core AIX kernel development, offering a direct impact on customer success and product innovation.

You will lead investigations, perform root-cause analysis, and design and implement kernel components and enhancements for enterprise systems. Strong C/C++ skills and UNIX/Linux internals are essential.

Qualifications

• Master's degree in CS or related field.
• Hands-on system software development experience in large-scale enterprise OSs.
• Experience with UNIX/Linux internals and kernel-space programming.
• Strong knowledge of multithreading, synchronization primitives, and memory management.
• Ability to debug kernel and system-level issues.

Responsibilities

• Lead investigation and resolution of complex AIX kernel and OS issues.
• Perform deep root-cause analysis across kernel, memory, I/O, virtualization, concurrency, and performance subsystems.
• Design, develop, test, and maintain AIX OS components and product enhancements.
• Deliver high-quality fixes, updates, and serviceability improvements for enterprise customers.
• Apply strong system programming expertise to improve reliability and scalability.
• Mentor team members and influence engineering decisions.

Skills

C/C++ programming

UNIX/Linux internals

Multithreading

Kernel-space programming

Memory management

Education

Master's Degree

Job description

At IBM Infrastructure & Technology, we design and operate the systems that keep the world running. From high-resiliency mainframes and hybrid cloud platforms to networking, automation, and site reliability. Our teams ensure the performance, security, and scalability that clients and industries depend on every day. Working in Infrastructure & Technology means tackling complex challenges with curiosity and collaboration. You'll work with diverse technologies and colleagues worldwide to deliver resilient, future-ready solutions that power innovation. With continuous learning, career growth, and a supportive culture, IBM provides the opportunities to build expertise and shape the infrastructure that drives progress.

Your Role And Responsibilities

We are seeking a senior AIX Kernel L3 Support & Development Engineer to join our operating systems team. This role combines customer-facing Level 3 support with core AIX kernel development, offering a unique opportunity to directly influence both customer success and product innovation.

In This Role, You Will

• Lead technical investigation and resolution of complex customer-reported AIX kernel and operating system issues.
• Perform deep root cause analysis across kernel, memory, I/O, virtualization, concurrency, and performance subsystems.
• Design, develop, test, and maintain AIX operating system components and product enhancements.
• Deliver high-quality fixes, updates, and serviceability improvements for enterprise customers.
• Apply strong system programming expertise to improve platform reliability, performance, and scalability.
• Guide technical decision-making, mentor team members, and contribute to engineering excellence across the organization.

Preferred Education

Master's Degree

Required Technical And Professional Expertise

• Hands‑on experience in System Software Development, preferably in large‑scale enterprise operating systems.

Technical Skills & Expertise

• Strong proficiency in (C/C++) programming, with proven experience in developing and maintaining low‑level system components.
• Solid understanding of Algorithms, Data Structures, and File Structures, with the ability to apply them effectively in performance‑critical environments.
• Deep expertise in System Programming , Strong hands‑on experience with UNIX/Linux internals, including:
  • Multi‑threading and concurrency models
  • Synchronization primitives (locks, semaphores, condition variables, etc.)
  • Kernel‑space programming and interactions with user space
  • Virtual Memory Management (VMM).
• Proven experience in the design and development of UNIX/Linux operating system components, preferably in Kernel, memory, I/O, or core subsystems.

Debugging & Problem Solving

• Demonstrated expertise in debugging and troubleshooting complex kernel and system‑level issues.
• Strong analytical and problem‑solving skills, including experience debugging device drivers and low‑level system failures.
• Strong analytical and problem‑solving skills, including experience debugging device drivers and low‑level system failures.
• Ability to perform root‑cause analysis on difficult production and customer‑reported issues.