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Contributed to KasperskyOS — a secure microkernel-based operating system developed from scratch; worked in the kernel and device driver team.
Refactored kernel interrupt subsystem: eliminating race conditions during boot.
Refactored block device drivers to ensure proper startup of all linked drivers; approach later generalized by the team.
Redesigned GPIO driver architecture to eliminate systemic resource leaks; proposed and implemented new architectural design for all drivers classes
Implemented Linux compatibility porting layer for clock drivers using inter-process communication (IPC) mechanism.
Improved build system to simplify new driver implementation for internal teams and enable independent development by external customers and vendors

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