Introduction About zADE - IBM Z Advance Development Environment is a software emulation product that provides one or more System z processors (with several emulated I/O device types) on intel and s390 architecture. It emulates a System z machine on an Intel-compatible PC and IBM Z Mainframe running Linux. It is intended for development, test, education, and demonstrations. It is not intended for production use.

This position is for the z Engineering development team that works on emulating zSeries Hardware features on Intel and s390 Architecture. The candidate will be part of a worldwide team responsible for the development and support of zADE features using C and C in a Linux environment. Collaborate with Architecture and verification teams in implementing and testing the features.

Must have good experience in Systems programming. Should have an interest in building a thorough understanding of processor architecture, whole-stack performance analysis, and problem determination. Prior experience working on open-source projects will be desirable.

We follow Agile practices where work and design are open and collaborative, but also where individuals are expected to operate with a level of autonomy and responsibility.

In this role, the candidate shall have the opportunity to continually grow their skills in Server Architecture, System programming, integrate and apply open-source technologies, and work & lead in a supportive and collaborative environment. We are looking for System Software Engineers who are quick learners, understand the ecosystem, and enjoy working in a challenging, fast-paced, highly cooperative environment.

Your Role and Responsibilities As an individual developer, you will play a key role in developing and maintaining a System z emulation environment that delivers processor and I/O device emulation on Intel and s390 architectures.

You will work on advancing the platform through new feature development, defect resolution, and modernization initiatives, while contributing to core components such as CPU emulation, I/O subsystems, networking, security, cryptography, and licensing services.

Required Education

- Bachelor's Degree

Preferred Education

- Master's Degree

Required Technical and Professional Expertise

- Overall, 12-18 years of IT experience
- 7 years of experience with C and C programming, ASM (Assembler) programming




- Strong Development Engineer who has demonstrated experience in operating systems project development, designing, unit testing, and defect fixing.
- Strong knowledge in System Architecture components (CPU, Memory, IO, Filesystem); ISA - Basic CPU and IO Instructions
- Understanding of Virtual machines and Virtualization technologies, Interrupts, IPC, etc.
- Git/Gerrit working knowledge.
- Development and debugging experience on Linux / UNIX
- Solid Analytical & problem-solving, debugging skills - identify the root cause of issues
- Strong Communication skills
- Willingness and ability to learn new technology including tooling and ramp up in a short span.

Preferred Technical and Professional Experience

- Understanding and experience with multiple processor architectures (System s390 and X86)
- Professional experience in Assembly programming
- Knowledge of zOS environment and debugging programs on zOS
- Knowledge of z/OS, z/VM, z/VSE, Linux on Z
- Experience with Open-source development tools and projects

Years of Experience

- 10 - 15

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Locations - Bangalore, Karnataka, India

📌 z Emulation Development Engineer (India)
🏢 IBM
📍 India