Senior C++ Workstation Developer

Job Title: Senior Linux C/C Workstation Developer

Location: Onsite Philadelphia PA
Work Hours: Between 7:00 AM and 6:00 PM EST (Standard 8 hours Shift)

Position Overview:

We are seeking a highly skilled Senior Linux Developer with deep expertise in C/C development for desktop environments. This role supports modernization and maintenance of mission-critical applications including migration from legacy GUI frameworks to modern Linux display protocols. The developer will contribute to real-time processing fault-tolerant systems and secure scalable software solutions.

Key Responsibilities:

• Design and maintain real-time fault-tolerant desktop applications using C/C on Linux.

• Migrate legacy GUI applications from Motif/X11 to modern protocols like Wayland using GTK Qt or EFL.

• Develop Bash scripts for automation of builds deployments and diagnostics.

• Optimize performance using multithreading memory management and low-latency techniques.

• Debug and profile applications using gdb valgrind perf and strace.

• Implement secure coding practices and support audit-readiness.

• Integrate GUI applications with enterprise platforms and middleware.

• Configure lightweight desktop environments and custom window managers.

• Manage source code using Bitbucket Git and CI/CD pipelines.

• Develop IPC mechanisms (sockets shared memory DBus) for inter-process communication.

• Document architecture migration strategies and operational procedures.

• Support containerized deployment using Docker.

Deliverables:

• High-performance compiled binaries and executables for Linux systems.

• Source code repositories with structured C/C code and version control.

• Bash scripts for automation and integration.

• GUI components migrated to modern toolkits.

• Documentation including API references migration plans and user manuals.

• Test suites for unit integration and performance testing.

• CI/CD pipeline configurations.

• Accessibility features and compliance support.

• Legacy code refactoring reports.

Required Qualifications:

• Bachelors degree in Computer Science Software Engineering or related field.

• Minimum 10 years of hands-on C/C development experience on Linux.

• Proficiency in Bash scripting and legacy GUI frameworks (Motif X11 MWM).

• Experience with Wayland GTK Qt and EFL.

• Familiarity with Bitbucket Git CI/CD and build systems (CMake Make).

• Strong debugging and profiling skills.

• Knowledge of Linux internals IPC and performance tuning.

• Excellent documentation and communication skills.

Preferred Qualifications:

• Deep knowledge of Linux kernel scheduling for deterministic latency.

• Experience writing custom Wayland protocols and compositor extensions.

• Expertise in Zero-Copy IPC using shared memory for performance optimization.

Additional Information:

• This is an onsite role based in Philadelphia PA.

• Candidates may be required to attend offsite software installations.

• The position supports a capital and reimbursable project under a technology refresh initiative.

***Lumen and / or its clients will not provide equipment (Laptop monitor etc.) to the selected contractor. The contractor must have their own equipment. Access to a virtual desktop set up (software) will be provided by Lumens client allowing the user access to the required systems and technology.***