1

Defense Software Engineer Jobs in Frederick, MD (NOW HIRING)

Cyber Software Engineer II

Germantown, MD · On-site

$101K - $131K/yr

Join our dynamic radar and defense company as a Cyber Software Engineer II, where you will help secure and automate mission-critical systems. We are seeking an engineer who can translate complex ...

Senior Software Engineer

Rockville, MD · Hybrid

$131K - $237K/yr

Join Leidos' all-star team supporting the Defense Intelligence Agency's Enterprise Digital ... As a Senior Software Engineer, you will : * Support the development of distributed backend services ...

As a Northstrat software engineer, you will have the opportunity to join amazing teams that deliver strategic IT solutions for meaningful problems in the defense and intelligence sectors. You will ...

Senior Software Engineer

Rockville, MD · On-site

$131K - $237K/yr

Join Leidos' all-star team supporting the Defense Intelligence Agency's Enterprise Digital ... As a Senior Software Engineer, you will : * Support the development of distributed backend services ...

Embedded Software Engineer

Dulles, VA · On-site

$123K - $151K/yr

The Position TrustPoint is currently seeking a Full Time Embedded Software Engineer to join the ... RF, Defense, Aerospace, or Wireless experience * Ability to develop, test, debug software and ...

The Position TrustPoint is currently seeking a Full Time Embedded Software Engineer to join the ... RF, Defense, Aerospace, or Wireless experience * Ability to develop, test, debug software and ...

Senior Principal Software Engineer

Frederick, MD · On-site

$124K - $172K/yr

Senior Principal Software Engineer Location: Frederick, MD, US, 21703 Job ID: 114808 The Leonardo ... life‑cycle defense and intelligence products that protect the security of our nation and our ...

Cyber Software Engineer II

Germantown, MD · On-site

$101K - $131K/yr

Join our dynamic radar and defense company as a Cyber Software Engineer II, where you will help secure and automate mission-critical systems. We are seeking an engineer who can translate complex ...

Cyber Software Engineer II

Germantown, MD · On-site

$101K - $131K/yr

Join our dynamic radar and defense company as a Cyber Software Engineer II, where you will help secure and automate mission-critical systems. We are seeking an engineer who can translate complex ...

Lead, Software Engineer

Derwood, MD · On-site

$135K - $250K/yr

L3Harris is the Trusted Disruptor in defense tech. With customers' mission-critical needs always in ... Lead, Software Engineer ( Software IPT Lead) Job Code : 42068 Job Location: Herndon, VA (on-site ...

New

Lead Software Engineer

Dulles, VA · On-site

$177K - $212K/yr

What Impact You'll Have We are seeking a Lead Software Engineer to guide a high-performing ... Experience working with government or defense customers * Background in distributed systems ...

Senior Embedded Software Engineer

Frederick, MD · On-site

$115K - $151K/yr

... cycle defense and intelligence products that protect the security of our nation and our allies ... Job Summary A Senior Embedded Software Engineer to develop a leading-edge embedded software ...

Showing results 21-40

Defense Software Engineer information

See Frederick, MD salary details

$63.1K

$146.7K

$204.3K

How much do defense software engineer jobs pay per year?

As of Sep 15, 2026, the average yearly pay for defense software engineer in Frederick, MD is $146,678.00, according to ZipRecruiter salary data. Most workers in this role earn between $119,300.00 and $172,000.00 per year, depending on experience, location, and employer.

What is a defense software engineer?

A Defense Software Engineer develops, tests, and maintains software for military and defense applications. They work on secure, mission-critical systems such as weapons control, cybersecurity, and communication networks. Their role requires proficiency in programming languages, security protocols, and compliance with defense standards. Due to the nature of the industry, security clearances and adherence to classified information policies are often required.

What types of projects and technologies do defense software engineers typically work on?

Defense Software Engineers often work on projects involving the development and maintenance of software for military systems, such as radar, communications, simulation, or weapons control platforms. They frequently use technologies like embedded systems, secure coding practices, and specialized hardware interfaces. Project work can range from upgrading legacy systems to designing cutting-edge capabilities, often requiring adherence to rigorous security and compliance protocols. Collaboration with systems engineers, hardware teams, and government stakeholders is typical, offering a dynamic and mission-driven work environment. This exposure helps engineers build specialized expertise while contributing directly to national security initiatives.

What are the key skills and qualifications needed to thrive in the defense software engineer position, and why are they important?

To thrive as a Defense Software Engineer, you need expertise in software development, a strong grasp of cybersecurity principles, and familiarity with defense industry standards, typically demonstrated by a degree in computer science, engineering, or a related field. Experience with programming languages such as C++, Java, or Python, knowledge of real-time operating systems, and certifications like Security+ or CISSP are often required. Attention to detail, problem-solving abilities, and the capacity to work collaboratively in multidisciplinary teams are valuable soft skills. These competencies ensure that complex, secure, and mission-critical software solutions are effectively developed and maintained to meet stringent defense requirements.

What are popular job titles related to Defense Software Engineer jobs in Frederick, MD?

For Defense Software Engineer jobs in Frederick, MD, the most frequently searched job titles are:

What job categories do people searching Defense Software Engineer jobs in Frederick, MD look for?

The top searched job categories for Defense Software Engineer jobs in Frederick, MD are:

What cities near Frederick, MD are hiring for Defense Software Engineer jobs?

Cities near Frederick, MD with the most Defense Software Engineer job openings:

Infographic showing various Defense Software Engineer job openings in Frederick, MD as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 80% Full Time, 16% Part Time, and 2% Contract. Highlights an 84% Physical, 3% Hybrid, and 13% Remote job distribution, with an average salary of $146,678 per year, or $70.5 per hour.

Computer Software Engineer- 3638974

Gaithersburg, MD

Full-time

Re-posted 25 days ago


Job description

Computer Technologies Consultants, Inc. (CTC, Inc.) is seeking a Computer Software Engineer to support the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. 


With offices in Washington DC and San Diego, CA, CTC is a leading technology company providing lifecycle IT, data analytics, cloud managed hosting services, agile software development, DevOps, Test Automation, Cyber Security, and infrastructure solutions. Additionally, we provide Professional Talent Acquisition Services as we proudly support the unique needs of U.S. Defense, Intelligence, and Federal Civilian agencies as well as Fortune 1000 companies.


Got the Government Contractor Blues? Looking for a company that cares and goes beyond just filling another contract billet? Well look no further! Experience this family-oriented company who takes pride in you and will help you grow where your passions lie. Holding many Defense & Federal government contracts around the globe, with our client you have the opportunity to take on new and evolving challenges, aim beyond what you think you are capable of and work in collaborative, dynamic, and high-tempo environments.  Our clients’ employees are their most valued asset and they invest in their people because they are in it for the long term. They are committed to your success and well-being and offer competitive benefits packages, salaries, bonus/award programs, and a high potential for professional growth and job opportunities world-wide.


Why Should You Be Interested?

  • Direct hire position
  • Competitive compensation and comprehensive benefits
  • Mid-size company with room for growth


Position Title: Computer Software Engineer

Position Location: This position on-site in Gaithersburg, MD.


Daily Responsibilities: 

  • Design, develop, maintain, and execute high-performance, C++ code across Linux, macOS, and Windows, ensuring algorithmic parity across all target platforms.
  • Refactor legacy code into modern C++ (i.e., C++11 or later).
  • Design, develop, maintain and refactor build systems, primarily with CMake.
  • Perform deep system debugging to resolve crashes and memory leaks.
  • Perform resolution of linker warnings and errors, including symbol conflicts.
  • Enforce and ensure code quality standards.
  • Develop and execute comprehensive unit tests.
  • Create and maintain technical documentation for application programming interface, system architectures, and build processes.
  • Design, develop, maintain, and execute Python and shell scripts for automation, validations, and testing. 
  • Ensure all third-party dependencies are available offline, vetted for security vulnerabilities, comply with federal software supply chain security standards, generating and maintaining a Software Bill of Materials.
  • Perform periodic performance profiling and resource usage analysis to ensure C++ applications meet the latency requirements required for efficient use of federal systems.
  • Perform code reviews on contributed code. Respond to code review issues received.


Required Years of Experience (min):       

  • Ten years of relevant experience 


Required Degree:           

  • Bachelor’s degree from accredited college or university in Computer Science


Required Experience:                                  

  • 10 years of professional software engineering, at least five years of which is dedicated to C++ development including modernizing legacy C/C++, CMake, and experience across multi-platform environments (linux, Windows, macOS).
  • At least five years of experience in scripting languages, Git source code management, and software development tools for debugging, code quality, and trouble shooting.


Required Clearance:

  • Background Check



Pay Information

TBD


Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.


Computer Technologies Consultants, Inc. is an Equal Opportunity Employer that provides employment opportunities for all qualified applicants without regard to race, color, religion, gender identity and/or expression, sexual orientation, age, mental or sensory differing abilities, protected veteran status, sex, national origin, or any other characteristic protected by applicable law. Computer Technologies Consultants, Inc. is devoted to diversity, equity, and inclusion.