San Diego, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
San Diego, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
Rancho Santa Fe, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
Rancho Santa Fe, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
Cardiff By The Sea, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
Cardiff By The Sea, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
El Cajon, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
El Cajon, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
National City, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
National City, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
La Jolla, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
La Jolla, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
Chula Vista, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
Chula Vista, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
San Diego, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
San Diego, CA · On-site +1
$87K - $157K/yr
... national defense using advanced signal processing, ocean remote sensing, and high-performance ... We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and ...
San Diego, CA · On-site +1
$160K - $200K/yr
ORA_REMOTE Description SAIC is seeking a full-stack Principal Software Engineer to join the Joint ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · On-site +1
$160K - $200K/yr
ORA_REMOTE Description SAIC is seeking a full-stack Principal Software Engineer to join the Joint ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · Remote
$143K - $192K/yr
This is a Remote Role in San Diego, CA. It is REQUIRED to be local to the area . You must be a U.S ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · Remote
$143K - $192K/yr
This is a Remote Role in San Diego, CA. It is REQUIRED to be local to the area . You must be a U.S ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · On-site +1
$138K - $185K/yr
This is a Remote Role in San Diego, CA. It is REQUIRED to be local to the area . You must be a U.S ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · On-site +1
$138K - $185K/yr
This is a Remote Role in San Diego, CA. It is REQUIRED to be local to the area . You must be a U.S ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · On-site +1
$160K - $200K/yr
ORA_REMOTE Description SAIC is seeking a full-stack Principal Software Engineer to join the Joint ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · On-site +1
$160K - $200K/yr
ORA_REMOTE Description SAIC is seeking a full-stack Principal Software Engineer to join the Joint ... JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States ...
San Diego, CA · On-site +1
The Software Engineer will support the Reverse Engineering, Science, and Technology for ... Ability to work independently in a remote environment while supporting geographically distributed ...
San Diego, CA · On-site +1
The Software Engineer will support the Reverse Engineering, Science, and Technology for ... Ability to work independently in a remote environment while supporting geographically distributed ...
Carlsbad, CA · On-site +1
$175K - $215K/yr
This role allows for remote work in collaboration with STR's Woburn, MA and Arlington, VA offices ... Active security clearance STR is a growing defense technology company. We specialize in advanced ...
Carlsbad, CA · On-site +1
$175K - $215K/yr
This role allows for remote work in collaboration with STR's Woburn, MA and Arlington, VA offices ... Active security clearance STR is a growing defense technology company. We specialize in advanced ...
San Diego, CA · Remote
$20 - $120/hr
Contractor Location: Remote Job Summary: Join our client's team as a Junior Software Engineer (Open 3D Engine) and play a pivotal role in training next-generation AI systems for 3D environments. You ...
San Diego, CA · Remote
$20 - $120/hr
Contractor Location: Remote Job Summary: Join our client's team as a Junior Software Engineer (Open 3D Engine) and play a pivotal role in training next-generation AI systems for 3D environments. You ...
San Diego, CA · Remote
$130K - $171K/yr
Senior Software Engineer - Remote Location : San Diego, CA Duration : 5 Months Total Hours/week : 40.00 1st Shift Client : Medical Devices Company Job Category : IT Level of Experience : Senior Level ...
San Diego, CA · Remote
$130K - $171K/yr
Senior Software Engineer - Remote Location : San Diego, CA Duration : 5 Months Total Hours/week : 40.00 1st Shift Client : Medical Devices Company Job Category : IT Level of Experience : Senior Level ...
San Diego, CA · On-site +1
$125K - $175K/yr
Hybrid or remote work is not authorized Job Title * Software Engineer III Salary * $125,000 - $175,000 Shift * N/A Travel * Yes, may involve several Contiguous United States (CONUS)/Outside ...
San Diego, CA · On-site +1
$125K - $175K/yr
Hybrid or remote work is not authorized Job Title * Software Engineer III Salary * $125,000 - $175,000 Shift * N/A Travel * Yes, may involve several Contiguous United States (CONUS)/Outside ...
San Diego, CA · On-site +1
$150K - $215K/yr
Experience working for a contractor of the DoW or government agencies * Preference for candidates ... Remote friendly with WeWork access * Unlimited PTO, shared downtime during the federal holiday ...
San Diego, CA · On-site +1
$150K - $215K/yr
Experience working for a contractor of the DoW or government agencies * Preference for candidates ... Remote friendly with WeWork access * Unlimited PTO, shared downtime during the federal holiday ...
San Diego, CA · On-site +1
$110K - $148K/yr
Approval of remote and hybrid work is not guaranteed regardless of work location.For additional ... Federal Contractors Labor Law Poster PA State Labor Law Poster Penn State Policies Copyright ...
San Diego, CA · On-site +1
$110K - $148K/yr
Approval of remote and hybrid work is not guaranteed regardless of work location.For additional ... Federal Contractors Labor Law Poster PA State Labor Law Poster Penn State Policies Copyright ...
San Diego, CA · On-site +1
We are looking for a Software Engineer to build the metrics and pipelines that grade this hybrid ... You will act as the first line of defense for simulation quality. You will dig into metric results ...
San Diego, CA · On-site +1
We are looking for a Software Engineer to build the metrics and pipelines that grade this hybrid ... You will act as the first line of defense for simulation quality. You will dig into metric results ...
$65K - $78.2K
2% of jobs
$78.2K - $91.4K
4% of jobs
$91.4K - $104.6K
6% of jobs
$104.6K - $117.8K
8% of jobs
$124.9K is the 25th percentile. Wages below this are outliers.
$117.8K - $131K
7% of jobs
$131K - $144.2K
18% of jobs
The median wage is $147.3K / yr.
$144.2K - $157.4K
16% of jobs
$157.4K - $170.6K
2% of jobs
$176K is the 75th percentile. Wages above this are outliers.
$170.6K - $183.8K
26% of jobs
$183.8K - $197K
1% of jobs
$197K - $210.2K
8% of jobs
$65K
$150.9K
$210.2K
| Aspect | Remote Defense Contractor Software Engineer | Remote Cybersecurity Software Engineer |
|---|---|---|
| Required Credentials | Bachelor's in CS or related, security clearances often preferred | Bachelor's in CS, Cybersecurity, or related; certifications like CISSP beneficial |
| Work Environment | Defense contractors, government projects, secure facilities | Tech companies, security firms, government agencies |
| Employer & Industry Usage | Primarily defense and military sectors | Primarily cybersecurity and IT sectors |
| Common Search & Comparison | Often compared for security clearance and defense projects | Compared for network security and threat mitigation roles |
The Remote Defense Contractor Software Engineer typically works on defense and military projects requiring security clearances, while the Remote Cybersecurity Software Engineer focuses on protecting networks and systems from cyber threats. Both roles require strong technical skills, but their industries and project types differ significantly.
8.4
Based on 146 frontline employees who took The Breakroom Quiz
55th of 426 rated business services
Unleash your curiosity. Solve what others can't.
At Leidos, we're not just writing code-we're decoding the unknown. Our San Diego research and engineering team tackles some of the most complex challenges in national defense using advanced signal processing, ocean remote sensing, and high-performance computing.
We're looking for a Software Engineer / Computer Scientist who thrives on solving hard problems and pushing the boundaries of performance. You'll join a cross-disciplinary team of scientists and engineers-experts in hydrodynamics, physics, acoustics, and signal processing-to build high-impact software that extracts meaning from massive, complex data sets.
If you're driven by innovation, energized by collaboration, and ready to see your algorithms power real-world missions-you belong here.
What You'll Do
Collaborate with scientists and engineers to design, implement, and optimize advanced algorithms that power next-generation radar, optical, and infrared sensor systems.
Engineer high-performance backend systems for scientific computing and distributed environments.
Integrate, refactor, and optimize scientific codebases, ensuring scalability and efficiency.
Translate and enhance existing code for GPU/CUDA acceleration and parallel/distributed execution.
Test, document, and evolve complex software in a Linux/Unix environment.
Work in a collaborative environment that values technical rigor, creativity, and growth.
Required Qualifications
Bachelor's degree in Computer Science, Applied Mathematics, Physics, or related field with 6+ years of backend software development experience; or Master's with 4+ years. Equivalent experience may be considered in lieu of degree.
U.S. citizenship and ability to obtain a Top Secret clearance (active TS preferred).
Demonstrated expertise in C/C++ backend software development, including large-scale, performance-critical applications.
Proven experience with high-performance computing, parallel/distributed processing, and standards such as MPI.
Hands-on experience with GPU/CUDA programming and optimization.
Experience with AI/ML and LLM concepts and algorithms
Strong foundation in advanced mathematics or physics, with the ability to translate theory into functional code.
Proficiency in Linux/Unix development environments.
Familiarity with scientific programming, algorithm implementation, and system-level problem-solving.
Strong understanding of software engineering principles and best practices.
Excellent written and verbal communication and software documentation skills.
Preferred Qualifications
Active Top Secret clearance
Familiarity with Agile development, object-oriented design, and modern software architecture.
Experience with Git, GitLab, MATLAB, and Fortran.
Knowledge of multi-threaded or shared-memory applications.
Why Leidos?
You'll be part of a team that:
Combines science, technology, and imagination to solve real-world defense challenges.
Values your curiosity as much as your technical ability.
Invests in your professional growth through mentorship and hands-on innovation.
At Leidos, your code doesn't just run-it defends, detects, and delivers.
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:January 21, 2026For 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.
The Leidos pay range for this job level is a general guideline onlyand 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.
Sourced by ZipRecruiter
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.
It services
10,000+ Employees
Reston, VA, US
