Software Engineer

Leidos Holding$87K — $157K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • U.S. Citizen with an active SECRET security clearance or ability to obtain one.
  • Bachelor's or Master's in Computer Science or Electrical Engineering preferred.
  • 3+ years of programming experience in C/C++, Python, and Java.
  • Familiarity with version control and CI/CD workflows.
  • Strong technical writing skills for reports and briefings.

Responsibilities

  • Develop and test software for uncrewed underwater vehicles (UUVs).
  • Create user interfaces and controls for onboard sensors.
  • Optimize UUV behaviors for efficient data collection.
  • Produce software performance reports based on testing.
  • Implement secure CI/CD pipelines with automated testing.
  • Develop platform-independent data processing tools.
  • Contribute to training documentation for technological deliverables.

Benefits

  • Flexible 9/80B work schedule allows for every other Friday off.
  • Opportunity to work on innovative R&D projects in defense.
  • Hands-on work with underwater vehicle systems and testing at sea.
  • Potential for travel in support of testing and training.
  • Encouragement for skill development in new technologies and UUV platforms.
Full Job Description
Leidos' Undersea Systems Division is seeking a Software Engineer in San Diego, CA to join a fast-paced R&D engineering group. This role is a unique opportunity to drive innovation in underwater vehicle systems, maritime sensors, subsea telemetry, and ISR solutions that support critical defense and national security missions at Naval Information Warfare Center, Pacific (NIWC PAC).

This position will require the candidate to maintain a Secret Clearance to start.

This position will require the candidate to work a 9/80B schedule (80 hours of work into nine days over a two-week period, allowing for every other Friday off) onsite at NIWC to align with the NIWC government team.

Primary Responsibilities:

This individual will work with a small team of engineers and technicians to develop, test, and deliver uncrewed underwater vehicles (UUVs) based on system requirements. Specific development includes software related to operations of UUVs as well as sensor integration.

Software Engineering focus:

  • Develop and refine user interface and control of various sensors integrated onboard UUVs.
  • Develop and optimize UUV behaviors to accomplish assigned tasks while maximizing opportunities for sensor data collection.
  • Optimize existing code (C/C++/C#, Java and Python).
  • Develop platform-independent data processing tools.
  • Produce SW performance reports based on test & evaluation requirements.
  • Create engineering & training documentation for technological deliveries.
  • Architect and implement secure CI/CD pipelines utilizing modern containerization and DevOps principles, integrating automated testing and vulnerability scanning to accelerate deployment cycles while maintaining high code quality.


Testing involves working onboard small boats and ships on the ocean, launching and recovering systems at sea, and post-test analysis of data. Reporting includes providing results from post-test data analysis into official reports or briefing material. Most development and testing will be conducted in San Diego; however, engineers may occasionally travel in support of testing, training and/or operations in other locations both in the U.S. and abroad and may spend multiple days at-sea onboard ships.

In addition to primary duties, this individual will be encouraged to develop expertise on the functionality and operations of one or more UUV platforms, new technologies, and may be asked to operate the system at-sea during test and evaluation.

Education/Skills:

  • U.S. Citizen with an active SECRET security clearance or the ability to obtain a Secret clearance (requires US CItizenship)
  • Bachelor of Science or Master of Science (preferred) in Computer Science or Electrical Engineering
  • Process-oriented and attention to detail.
  • Strong leadership skills.
  • Experience working with and managing small groups.
  • Must be flexible and responsive to customer needs.
  • Requires frequent movement around piers, docks, and facility spaces.
  • Required to transport or lift objects weighing up to 50 pounds across the facility.
  • Requires constant use of hands/fingers to operate machinery, tools, or computer equipment.
  • Requires ability to move about the warehouse, stoop, kneel, or reach for extended periods.
  • Ability to climb ladders up to 20 feet.
  • Able and willing to work aboard marine vessels of various sizes, sometimes overnight.
  • Requires work in various temperatures and inclement weather.
  • 3+ years C/C++, Python & Java language programming fluency
  • Familiarity with versioning control and CI/CD workflows
  • Experience working independently or in teams to develop solutions, deliver products, and test and evaluate performance.
  • Experience and skill analyzing experiment data to determine results as feedback into the development cycle.
  • Strong technical writing skills to provide input to or create technical reports and briefing material.
  • Ability to identify a solution to a presented problem and map it to a schedule.


An ideal candidate would have experience with uncrewed underwater vehicle (UUV) operations, including experience with sensor integration, mission constructs, and command and control. Experience with at-sea test and evaluation (T&E) to include operations onboard small craft and large ships at sea.

SUBSEAMSS

Original Posting:
September 16, 2026

Pay Range:
Pay Range $87,100.00 - $157,450.00

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.

Join the Team

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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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

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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