Senior C/C++ Linux Engineer - Real-Time & GUI Systems

Senior C/C++ Linux Engineer Randstad is seeking a highly skilled Senior C/C++ Linux Engineer to support a mission-critical modernization initiative for a client in Philadelphia, PA. This role involves upgrading legacy Linux-based desktop applications by migrating them from outdated GUI frameworks (Motif/X11) to modern solutions like Wayland and GTK/Qt. The engineer will be responsible for building high-performance, real-time software with a focus on reliability, security, and low-latency responsiveness. This position is essential to platform stability, operational continuity, and long-term technology resilience. Key Responsibilities: Design, develop, and maintain real-time, fault-tolerant C/C++ applications on Linux platforms Migrate legacy GUIs from Motif/X11 to modern toolkits (GTK, Qt, EFL) using Wayland protocols Write Bash scripts for build automation, deployment routines, and system diagnostics Optimize application performance using multithreading, memory management, and scheduling techniques Debug and profile applications with tools like gdb, valgrind, perf, and strace Implement secure coding practices and support audit-readiness for critical systems Integrate GUI applications with enterprise middleware and backend services Configure and maintain lightweight Linux desktop environments and custom window managers Manage source code and CI/CD workflows using Git and Bitbucket Develop and support IPC mechanisms (sockets, shared memory, DBus) for inter-process communication Support containerized deployments using Docker in secure environments Document system architecture, migration plans, and operational procedures Qualifications: Bachelor’s degree in Computer Science, Software Engineering, or a related field (required) 10+ years of hands-on experience in C/C++ development on Linux systems Expertise in event-driven programming and development of Linux desktop applications Experience modernizing GUI applications from Motif/X11 to GTK, Qt, or Wayland Proficiency in Bash scripting and build systems like Make, CMake, and Meson Familiarity with Wayland protocols and compositor-client architecture Experience with Git-based version control and CI/CD pipelines (Bitbucket, GitLab, etc. Software Technology Inc