Level 3 Communications, Inc

Scientist, Software Engineer

Level 3 Communications, Inc$161K — $300K *
Aerospace & Defense
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in a relevant field with 12+ years of experience or a Graduate Degree with 10+ years of experience.
  • 12+ years in software engineering with at least 8 years in C/C++ embedded systems development.
  • Active DoD Secret clearance and ability to work onsite in a secure facility.
  • Familiarity with DoD/National Security Agency software standards and secure coding practices.
  • Proficient in tools for code analysis, debugging, and CI/CD methodologies.

Responsibilities

  • Lead technical efforts to modernize C/C++ embedded software with memory-safe principles.
  • Transform NSA security requirements into actionable tasks for the engineering team.
  • Establish and enforce coding standards, design patterns, and automated testing pipelines.
  • Facilitate the adoption of modern programming tools to mitigate memory safety vulnerabilities.
  • Collaborate with cross-functional teams to ensure compliance and traceability of requirements.
  • Mentor software engineering team members, cultivating a culture of secure coding practices.
  • Serve as the main technical interface to stakeholders for compliance and risk mitigation.

Benefits

  • Health and disability insurance
  • 401(k) match
  • Flexible spending accounts
  • Employee Assistance Program (EAP)
  • Education assistance and parental leave
  • Paid time off and company-paid holidays
Full Job Description
Job Title: Scientist, Software Engineering

Job Code: 43995

Job Location: Carlsbad, CA

Job Schedule: 9/80: Employees work 9 out of every 14 days- totaling 80 hours worked- and have every other Friday off

Job Description:

We are seeking a Software Engineer Scientist to modernize a legacy real-time embedded C/C++ codebase, incorporating memory-safe concepts and ensuring compliance with the latest NSA security requirements. This leader will be vital in shaping technical strategies, mentoring the engineering team, and ensuring the successful adoption of modern secure coding practices within a high-assurance cryptographic system. Alongside leading immediate modernization efforts, this role involves developing strategies and long-term technical visions to extend the design for future products and systems. The position requires onsite work in a secure facility and an active DoD Secret clearance.

Essential Functions:

  • Lead the technical effort to refactor and modernize the embedded C/C++ software baseline with memory-safe principles.
  • Translate NSA security and robustness requirements into actionable engineering tasks.
  • Establish coding standards, design patterns, and automated analysis/testing pipelines that enforce memory safety.
  • Guide the adoption of modern programming practices, tools, and frameworks to mitigate memory safety vulnerabilities such as buffer overflows, use-after-free, and race conditions.
  • Collaborate with cross-functional teams (systems engineering, cybersecurity, testing, and integration) to ensure requirements traceability and compliance.
  • Provide technical leadership and mentorship to the software engineering team, fostering a culture of secure, modern, and maintainable code.
  • Actively participate in technical conversations across the BCS to help develop strategies and articulate a forward-looking vision to extend the design for future information assurance products and systems.
  • Serve as the primary technical interface with stakeholders, government customers, and leadership on compliance progress and risk mitigation.
  • Support Cost Account Management (CAM) responsibilities, including tasks related to proposal development, resource management, and schedule planning and status updates.


Basic Qualifications (Minimum)
  • Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, Electrical Engineering, or a related technical field a minimum of 12 years of prior relevant experience. Graduate Degree and a minimum of 10 years of prior related experience. In lieu of a degree, minimum of 16 years of prior related experience.
  • 12+ years of professional experience in software engineering, including at least 8 years in C/C++ embedded systems development.


Preferred Qualifications
  • C/C++ embedded systems development.
  • Proven leadership experience managing small-to-mid-sized software teams.
  • Familiarity with DoD/National Security Agency software standards
  • Strong communication skills with the ability to brief executives and government stakeholders on technical topics.
  • Demonstrated expertise in identifying and mitigating memory safety vulnerabilities in legacy codebases.
  • Hands-on experience with modern tools for static/dynamic code analysis, fuzz testing, sanitizers, and secure coding frameworks.
  • Comfortable using both Linux and Windows operating systems (including command line) for daily software development tasks.
  • Solid understanding of software development methodologies (i.e. Waterfall, Agile/SCRUM, etc.)
  • Familiarity with software configuration management tools (i.e. Git, Perforce, ClearCase, etc.)
  • Active DoD Secret clearance (minimum) and the ability to work onsite in a secure facility.
  • Background in high-assurance or safety-critical systems (e.g., avionics, defense)
  • Proficiency with Makefiles and embedded build tools (e.g., cross-compilers, linkers, debuggers).
  • Experience in integrating and debugging software on embedded targets, including the use of JTAG and hardware/software debug tools.
  • Experience developing low-level device drivers and interfaces that interact with FPGAs using memory-mapped registers, interrupts, and related techniques.
  • Continuous Integration & Development (CI/CD) experience.


In compliance with pay transparency requirements, the salary range for this role in California is $161,500 - $300,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

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