Principal Software Engineer (SWE-V)

Seeking an experienced software developer to create custom analytics to perform at scale, supporting requirements for the Joint Cyber Weapons (JCW) program for the United States Marine Corps. The software engineer will work closely with engineers and end users to support in research and development of software products designed to exploit vulnerabilities of adversary technology, develop and optimize algorithms, author scripts and develop utility software., * Mission Focus : Work directly with Marine Corps Forces Cyberspace Command (MFCC), the Cyber Mission Force (CMF), as well as software engineers to solve the most demanding strategic problems; perform end-to-end software engineering to develop, integrate, test, and deploy tools and tradecraft into the customer's corporate architecture.

• Technical Proficiency : Strong development experience with multiple programming languages (C, C++, Python, Java, JavaScript, Bash/Bourne/C Shell, Rust and Assembly). Candidate will have demonstrated experience writing, testing and refining code with the various programming languages. Demonstrated knowledge with various operating systems (Windows, Linux/Unix, Android, and iOS). Experience with establishing and maintaining CI/CD mechanisms in accordance with industry best practices. Experience with software planning; defining project scope, goals and timelines.
• Qualifications : Bachelor's degree in a technical discipline plus fifteen (15) to twenty (20) years of relevant software development experience or a master's degree with thirteen (13) years of development experience.
• Security Clearance : Must possess an active TS/SCI with Polygraph to be considered for this role.
• Desirable Skills : Experience with development tools such as Visual Studio and Git. Additional experience with Cloud computing platforms such as AWS, Microsoft Azure, and Google Cloud. Be familiar with and capable of learning various development tools, to include but not limited to Gnu Debugger (GDB), Valgrind, Low Level Debugger (LLDB), Interactive Disassembler (IDA) Pro, Ghidra, SCons.

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

Leidos has a new and exciting opportunity for a Principal Software Engineer in our Intel Sector. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!, If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares., Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .