Senior Software Engineer

Leidos Holding • $131K — $237K *
Aerospace & Defense
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in software engineering, Computer Science, or related field with a GPA of 3.0 or higher.
  • 12+ years of relevant technical experience, or 10+ years with a master's degree.
  • U.S. citizenship and eligibility for a Department of Defense security clearance.
  • Expert-level experience with C/C++ programming.
  • Experience leading software development teams on multi-disciplinary projects.
  • Familiarity with real-time embedded systems and RTOS environments.

Responsibilities

  • Provide technical leadership for software development teams of 5-15 engineers.
  • Define full-stack software architecture for missile system applications.
  • Lead technical and design reviews to ensure quality and compliance.
  • Make critical decisions on tools and development approaches.
  • Serve as the primary technical interface with government customers.
  • Mentor junior and mid-level software engineers.
  • Champion open systems architectures and modular approaches.

Benefits

  • Comprehensive health and wellness programs.
  • Retirement savings plans with company matching.
  • Opportunities for professional development and training.
  • Flexible work arrangements and work-life balance initiatives.
  • Employee recognition programs and community engagement opportunities.
Full Job Description
Leidos is seeking a talented Senior Software Engineer to work in our Huntsville office. This is an exciting opportunity to use your experience to help develop software for Tactical strike guided munition programs.

This position focuses on the development of robust, innovative software frameworks, as well as the fielding, support, and maintenance of software products. Software products range from analysis tools/simulations, mission planning software, and components of mission-critical systems.

Primary Responsibilities

  • Provide technical leadership and direction for software development teams (5-15 engineers).
  • Define full-stack software architecture and design patterns for missile system applications implementing major system functions (i.e. guidance, navigation, control, telemetry, and mission planning).
  • Lead technical reviews, design reviews, and code reviews to ensure quality and compliance.
  • Make critical technical decisions on tools, frameworks, and development approaches.
  • Serve as the primary technical interface with government customers and program management.
  • Mentor and develop junior and mid-level software engineers.
  • Champion adoption of open systems architectures and modular open systems approach (MOSA) with standardized interfaces.
  • Ensure software design support modularity, reusability, portability, and maintainability requirements.
  • Lead code reviews, ensuring coding standards and best practices are applied.
  • Direct communication with customers, end users, and team members will be required on a frequent basis.
  • Support flight test operations and post-test analysis.
  • Ensure adherence to military and aviation standards for safety, cybersecurity, and RMF.


Basic Qualifications

  • Candidate must possess at least a bachelor's degree in software engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or equivalent technical degree with an overall GPA of 3.0 or higher.
  • 12+ years of relevant technical experience, or 10+ years with a master's degree in a related field.
  • Candidate must be a U.S. citizen and be eligible to obtain and maintain a U.S. Department of Defense security clearance.
  • Relevant technical experience must include developing, integrating, testing, or troubleshooting embedded software or embedded-adjacent applications that interface with, operate, monitor, support, simulate, control, or communicate with embedded systems.
  • Must be a resident of North Alabama or willing to relocate to the Huntsville-North Alabama area.
  • Experience leading software development teams on multi-disciplinary projects.
  • Demonstrate expert-level experience with C/C++ required.
  • Experience with Python or Java.
  • Familiarity with real-time embedded systems and RTOS environments (e.g. VxWorks, FreeRTOS).
  • Experience with software configuration management principles and techniques.
  • Experience with software quality engineering concepts.
  • Experience with good software standards and practices.


Preferred Qualifications

  • Experience with open systems concepts, architectures, and implementation.
  • Knowledge of Modular Open Systems Approach (MOSA) principles and application.
  • Experience with embedded missile systems, aerospace, or weapons systems development.
  • Hands-on experience implementing open architecture frameworks such as FACE, OMS, or SOSA.
  • Experience with containerization and microservices technology.
  • Knowledge of guidance & control algorithms.
  • Knowledge of navigation systems.
  • Knowledge of mission planning systems (NOMS, JMPS).
  • Knowledge of sensors used in guidance, navigation, or mission planning systems.
  • Familiarity with Model-Based Systems Engineering (MBSE) and SysML.
  • Knowledge of software development standards: DO-178C, MIL-STD-882e, or similar.
  • Experience with containerization (Docker/Kubernetes) and CI/CD pipelines.
  • Proficiency with MATLAB/Simulink for algorithm development and simulation a plus.
  • Understanding of hardware-software integration and software systems engineering principles
  • Formal experience in an official software leadership role with people-management responsibilities (e.g., IPT Lead, Technical Lead, Software Program Manager) - including direct reports, staffing, or performance management duties.
  • Agile Scrum Master or Product Owner experience a plus.
  • Deep understanding of software architecture patterns and design principles.
  • Excellent communication skills with ability to present to senior leadership and government customers.
  • Strong problem-solving abilities and systems-level thinking.


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.

Original Posting:
October 1, 2026

Pay Range:
Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

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Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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