stjepan
@stjepan
Stjepan Poljak
Senior Linux Systems and Platform Security Engineer with 7+ years of experience ...
About
Strong expertise in Linux kernel internals, virtualization (QEMU/KVM) and platform security. Experienced in debugging complex systems, kernel instrumentation, performance optimizat... Show more
Top Skills
c/c++
•
linux
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qemu
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kvm
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python
Experience
work
Senior Systems Software Engineer
dSPACE
Sep 2020 - PresentDesigned Linux kernel and QEMU/KVM debugging and tracing tools for diagnosing deadlocks and improving synchronization in virtualized systems, including NMI-based debugging, CPU/GPU coordination, and NVIDIA GPU passthrough. Built initramfs infrastructure and QEMU simulation/testing workflows using Python, gdbstub, and FlameGraph tools. Improved kernel/QEMU reliability, refactored repos, developed CI/testing (C++, GoogleTest, Docker), and handled security maintenance (CVE triage, patching).
work
Linux Systems Engineer
Ericsson
Jan 2017 - Sep 2020Improved Linux memory diagnostics with Python/GUI tooling and built stress-testing for real-time scheduling on ARM 5G systems. Developed IPC and crash dump systems, fixed Preempt-RT latency and kernel/security issues, and maintained Yocto-based distributions with kernel updates. Worked on init/boot orchestration, kernel optimizations (RCU, NoHZ, syscalls, networking), driver debugging, and UEFI–Linux communication via NOR flash.
Education
school
Department of Mathematics, Osijek
Master's Degree in Education of Mathematics and Computer Science, Mathematics and Computer Science
2004 - 2026Language & Tools
C/C++, Linux kernel, QEMU, KVM, Python
Currently Exploring
Go, Rust
Contributions
Articles
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