Senior Principal Cyber Engineer (Cybersecurity)

Location: Onsite at a customer site in Sterling, Virginia, United States. The position is not relocation eligible.

Salary: $122,000–$253,000 per year, based on qualifications, relevant experience, and expertise.

Company

hirify.global provides cyber operations, data operations, systems integration, intelligence mission support, and software modernization services for intelligence, defense, civil, and commercial customers.

What you will do

• Develop high-impact native applications for mobile devices.
• Integrate reverse-engineering results into development products.
• Expand mobile platform expertise to meet development objectives and customer requirements.
• Work onsite with end users and incorporate continuous feedback into product development.
• Address advanced cyber offense, defense, and resiliency challenges.

Requirements

• Current TS/SCI security clearance is required.
• At least 10 years of experience with C/C++ on Unix/Linux platforms.
• Professional experience developing on iOS and with Objective-C.
• Experience with Unix features including named pipes, pipes, pThreads, and signal handlers.
• Familiarity with static decompilers such as Hex-Rays and disassemblers such as Ghidra.
• A degree in a technical discipline.

Nice to have

• Experience with iOS kernel-space development, ARM64/ARM32 architectures, Core Foundation, virtualization, Docker, Git, and Atlassian products.
• Experience with AI agent task delegation and output evaluation.
• Experience developing proof-of-concept exploit software.

Culture & Benefits

• Collaborative work with engineers across vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, systems engineering, and data analytics.
• Mentorship, training, and access to a broad technical portfolio.
• Medical, vision, and dental insurance.
• 401(k) plan, paid time off, holidays, and additional insurance coverage.
• A signing bonus may be available for a sufficiently qualified candidate.