Software Systems Engineer Jobs in San Diego, CA
Software Systems Engineer jobs in San Diego are concentrated in defense, cybersecurity, and biotech, with activity in Sorrento Valley, Kearny Mesa, and the Torrey Pines corridor. Employers hiring right now include Apple, SAIC, and Leidos. Find a role that fits below and apply directly.
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Description
Leidos’ Undersea Systems Division (USD) is seeking a Software Engineer to join our fast-paced Research & Development (R&D) engineering team in San Diego, CA. This role is a unique opportunity to drive innovation in underwater vehicle systems, maritime sensors, subsea telemetry, and Intelligence, Surveillance, and Reconnaissance (ISR) solutions supporting critical defense and national security missions at the Naval Information Warfare Center, Pacific (NIWC PAC).
As a recognized leader in C4ISR technologies, Leidos’ Undersea Systems Division delivers mission-critical solutions across sensor networks, unmanned systems, and tactical platforms. Known for achieving industry firsts in some of the most challenging maritime environments, our team continues to push the boundaries of undersea innovation.
If you're a hands-on Software Engineer who enjoys solving complex technical challenges, collaborating with multidisciplinary teams, and seeing your work tested in real-world maritime environments, this could be the opportunity for you!
What You'll Work On:
In this role, you will collaborate with a small team of engineers and technicians to develop, test, and deliver uncrewed underwater vehicles (UUVs) based on system requirements. Your work will focus on software development supporting UUV operations, sensor integration, and system performance, with opportunities to participate directly in hands-on testing and evaluation.
Key responsibilities include:
- Develop and refine user interfaces and controls for various sensors integrated onboard UUVs.
- Develop and optimize UUV behaviors to accomplish assigned tasks while maximizing opportunities for sensor data collection.
- Develop platform-independent data processing tools.
- Produce software performance reports based on test and evaluation requirements.
- Create engineering and training documentation to support technological deliveries.
- Participate in testing activities onboard small boats and ships, including launching and recovering systems at sea and conducting post-test data analysis.
- Analyze post-test data and document findings in official technical reports and briefing materials.
- Support development and testing activities primarily in San Diego, with occasional travel for testing, training, and/or operations at locations throughout the U.S. and abroad. Some assignments may require spending multiple days at sea onboard ships.
What You'll Bring:
- Bachelor of Science in Computer Science, Electrical Engineering, or a closely related field with 8+ years of relevant experience, or a Master's degree with 6+ years of relevant experience.
- Must be a U.S. Citizen
- Must have an active Secret security clearance with the ability to obtain a TS/SCI (Active TS/SCI highly preferred!)
- Self-motivated engineer with demonstrated hands-on hardware/software bring-up and benchtop troubleshooting experience.
- Strong systems programming capabilities in Linux, Python, and C or C++.
- Practical understanding of TCP networking and socket-level data transport.
- Familiarity with ROS2 package development and DDS middleware.
- Experience interfacing with CAN bus, UDP, and alternate communications methods (serial, RF datalinks).
- Demonstrated ability to perform statistical analyses and generate visualizations using large-scale datasets, including telemetry and bench logs.
- Experience working independently and collaboratively to develop solutions, deliver products, and test and evaluate performance.
- Experience analyzing experimental data, interpreting results, and incorporating findings into the development cycle.
- Strong technical writing skills, including the ability to contribute to or develop technical reports and briefing materials.
- Ability to identify a solution to a presented problem and map it to a schedule.
- Strong leadership skills with experience working with and managing small teams.
- Must be flexible and responsive to evolving customer needs.
- Process-oriented mindset with strong attention to detail.
Work Environment & Schedule:
- This is an onsite position at NIWC PAC in San Diego, CA, working alongside the government team in a collaborative, mission-focused R&D environment.
- The position follows a 9/80B work schedule, consisting of 80 hours over nine working days within a two-week period, allowing for every other Friday off.
Physical Requirements:
- Ability to climb ladders up to 20 feet.
- 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.
- Able and willing to work aboard marine vessels of various sizes, sometimes overnight.
- Requires work in various temperatures and inclement weather.
SUBSEAMSS
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:
November 10, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $107,900.00 - $195,050.00The 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
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.
Pay and Benefits
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.
Securing Your Data
Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.
Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
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Top Industries Hiring
- Electronics & Hardware
- Science & Research
- Technology & Software
Software Systems Engineer Jobs in San Diego: Frequently Asked Questions
How do I get a software systems engineer job in San Diego?
Focus your search on defense contractors, cybersecurity firms, and biotech companies, which drive the heaviest hiring for software systems engineers in San Diego. Sorrento Valley, Kearny Mesa, and the Miramar corridor are where most openings cluster. Candidates with systems integration experience, familiarity with embedded systems, or a security clearance stand out in this market. Tailoring your resume to mission-critical or regulated-environment work gives you a clear edge locally.
Which companies hire software systems engineers in San Diego?
San Diego software systems engineer roles are posted by Apple, SAIC, and Leidos and others right now, based on current listings on Migrate Mate as of November 2026. The local employer mix leans heavily toward defense primes, cybersecurity specialists, and medical device companies, many of which maintain large engineering campuses in and around Sorrento Valley and Kearny Mesa.
Are there remote software systems engineer jobs in San Diego?
Yes, though remote availability depends on the work type, since software systems engineering often involves hardware integration, lab environments, or classified facilities that require on-site presence. About 14% of software systems engineer openings tied to San Diego are remote or hybrid as of November 2026, with remote options most common for roles focused on software architecture, requirements analysis, or modeling and simulation rather than hands-on hardware or defense work.
How can I get a software systems engineer job in San Diego with little or no experience?
The most realistic entry path in San Diego is targeting associate systems engineer or junior software engineer roles at defense contractors and mid-size cybersecurity firms, many of which hire recent graduates from UC San Diego and San Diego State University through campus and internship pipelines. Entry-level positions in test engineering, systems integration support, or requirements documentation are common starting points locally. Familiarity with model-based systems engineering tools and a willingness to pursue a security clearance will accelerate your candidacy with San Diego employers.
Which industries hire the most software systems engineers in San Diego?
San Diego software systems engineer roles concentrate in Electronics & Hardware, Science & Research, and Technology & Software, based on current listings on Migrate Mate as of November 2026. San Diego's strong defense contracting base, combined with its growing cybersecurity and life sciences sectors, creates consistent demand for engineers who can work across hardware, software, and regulated-system environments.
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