Principal Software Engineer — Mission Security & Analysis

Leidos LLC; Fort Meade (MD); On-site; USD 131,000 - 237,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with company match

Flexible schedules

Stock purchase plan

Job summary

Leidos seeks a Principal Software Engineer in the INTEL Sector to advance mission software for security engineering, CNO, SIGINT, and cryptographic key management. The role emphasizes rapid prototyping, new development, and advanced technology research in a fast-paced environment.

Qualifications include a Bachelor’s degree with 11+ years of experience, proficiency in Python, and strong knowledge of C/C++ and Assembly (x86). Active TS/SCI with Polygraph is required for consideration.

Qualifications

• Bachelor's degree plus eleven (11) years of relevant experience.
• Proficiency with Python, and ability to read/understand C/C++, and Assembly (x86).
• Experience with software architecture, operating system design, compilers, and debugging.
• Comfortable working with operating system internals, low-level software development, file I/O, system APIs, memory management, and executable program analysis.

Responsibilities

• Design, develop, test, debug, and maintain software applications supporting mission requirements.
• Analyze customer needs, develop software prototypes, engineer technical solutions, implement algorithms, and translate conceptual designs into scalable software architectures.
• Develop and debug software using object-oriented programming languages; perform software engineering and technical design activities; analyze and understand legacy code.
• Work at the operating system level, including file I/O, system interfaces, and low-level programming concepts; develop advanced tools for binary analysis, shellcode detection, malware analysis, function identification, and reverse engineering of compiled software.

Skills

Python

C/C++

Assembly (x86)

Software architecture

OS internals

Memory management

Education

Bachelor's degree + 11 years experience

Job description

Leidos seeks a Principal Software Engineer in the INTEL Sector to advance mission software for security engineering, CNO, SIGINT, and cryptographic key management. The role emphasizes rapid prototyping, new development, and advanced technology research in a fast-paced environment.

Qualifications include a Bachelor’s degree with 11+ years of experience, proficiency in Python, and strong knowledge of C/C++ and Assembly (x86). Active TS/SCI with Polygraph is required for consideration.