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Defense Software Engineer Jobs in Maryland (NOW HIRING)

$150.80 - $265.88/hr

WHO WE ARE Lockheed Martin is a leading aerospace and defense company shaping the future of cyber and intelligence. The program seeks a software engineer to parse data products that make information ...

Software Engineer Location: Annapolis Junction, MD Compensation Range: $170 - $190K *Clearance ... Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space ...

Software Engineer Location: Annapolis Junction, MD Compensation Range: $170 - $190K *Clearance ... Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space ...

Software Engineer Location: Annapolis Junction, MD Compensation Range: $150 -$170K *Clearance ... Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space ...

Software Engineer 3

Annapolis, MD · On-site

$57 - $76.50/hr

Software Engineer 3 Location: Annapolis Junction, MD Compensation Range: $215 -$235K *Clearance ... Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space ...

Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space ... The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g ...

Software Engineer

Annapolis Junction, MD · On-site

$77K - $163K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Job Summary The Software Engineer develops, maintains, and enhances complex and diverse software ...

Software Engineer

Annapolis, MD · On-site

$77K - $163K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Job Summary The Software Engineer develops, maintains, and enhances complex and diverse software ...

Software Engineer 3

Annapolis, MD · On-site

$57 - $76.50/hr

Software Engineer 3 Location: Annapolis Junction, MD Compensation Range: $230 -$250K *Clearance ... Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space ...

Software Engineer

Annapolis, MD · On-site

$77K - $163K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Job Summary The Software Engineer develops, maintains, and enhances complex and diverse software ...

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Showing results 1-20

Defense Software Engineer information

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 cities in Maryland are hiring for Defense Software Engineer jobs?

Cities in Maryland with the most Defense Software Engineer job openings:

Infographic showing various Defense Software Engineer job openings in Maryland as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution.

Software Engineer IV, Analysis

Oceaneering International, Inc.

Suitland, MD • On-site

$138K - $207K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 11 days ago


Oceaneering rating

6.8

Company rating: 6.8 out of 10

Based on 22 frontline employees who took The Breakroom Quiz

369th of 491 rated machine equipment manufacturers


Job description

The Staff Software Engineer position serves as a vital member of the Oceaneering Technologies (OTECH) group. Staff Engineers are expected to function as lead or key contributors on software and engineering efforts and proposals. This role is vital to producing software solutions and making solid architectural decision to support the longevity and maintainability of the system.

OTECH produces and maintains unique underwater systems - typically for US Navy and other US Government Department of Defense customers. Our projects are all one-of-a-kind. Projects range from quick burn to lifecycle management of fielded systems. This role requires developing and supporting analytical tools for data collected from underwater vehicles. The ideal candidate for this position is a self-starter who is an effective communicator with excellent critical thinking skills and a strong background in geospatial technologies. This position would be expected to handle the entire range of need and ideally have a solid depth of understanding of underwater data collection systems. 

Oceaneering is a global provider of engineered services and products, primarily to the offshore energy industry. We develop products and services for use throughout the lifecycle of an offshore oilfield, from drilling to decommissioning. We operate the world's premier fleet of work class ROVs. Additionally, we are a leader in offshore oilfield maintenance services, umbilicals, subsea hardware, and tooling. We also use applied technology expertise to serve the defense, material handling, aerospace, science, and renewable energy industries.
Equal Opportunity Employer: 
All qualified candidates will receive consideration for all positions without regard to race, color, age, religion, sex (including pregnancy), sexual orientation, gender identity, national origin, veteran status, disability, genetic information, or other non-merit factor.
Oceaneering Aerospace and Defense Technologies (AdTech) delivers solutions that enable humans to work safely and effectively in harsh environments - from underwater to the outer reaches of space. Our innovative solutions support the development and application of practical, cost-effective systems that meet our customers' challenges - from routine to extreme. Our experience and expertise across multiple industries uniquely positions us as a leader in the government, space, and maritime services markets. Our products and services meet the rigorous demands of the complex environments in which they operate, delivering results without compromising safety or reliability.

Essential Qualifications

  • BS Degree in Computer Science, Computer Engineering, Mathematics, Electrical Engineering or related technical field. Commensurate experience will be considered.
  • 8+ years of practical experience in software engineering.
  • Proficiency with a .NET programming language, preferably C#. 
  • Proficiency with relational database programming. 
  • Proficiency with designing software architecture for a variety of working environments.
  • Proficiency with the Microsoft 365 environment.
  • Strong troubleshooting skills.
  • Experience in team leadership.
  • Experience with basic project management.
  • Solid written and oral communications skills, including ability to effectively document, convey, and present engineering concepts and products to team members and customers.
  • Ability to obtain and maintain Security+ or CASP+ certification.
  • Ability to obtain and maintain a United States Government Department of Defense Security Clearance.
  • Must be a US citizen.

Preferred Qualifications

  • Experience developing in underwater vehicle or robotic software frameworks and expanding framework capabilities.
  • Experience working on Department of Defense software efforts.
  • Experience with Jira and Git.
  • Experience with UI/UX design.
  • Experience setting up CI/CD process (e.g. GitHub Actions and Artifactory).
  • Experience with Software Testing methodologies.
  • Experience with both Desktop Application and Service Oriented software development.
  • Experience with Geospatial systems and mapping technologies.
  • Experience with ESRI and ARCGIS Pro SDKs
  • Experience with Binary Device and Sensor protocols
  • Familiarity with video and audio codecs
  • Familiarity with web-based UI development.

Additional

  • Additional duties as assigned.

We offer a comprehensive and competitive benefits package. Employee benefits vary by role, however, may include Health and Wellness, Mental Health, Retirement Savings, Life and Disability, Paid Maternity and Parental Leave, Paid Time Off, Tuition Reimbursement, and an Employee Assistance Program.

Compensation $138,300.00 - $207,500.00

  • Apply working knowledge of the software lifecycle to develop and lead software efforts.
  • Make and implement decisions for designing and maintaining software architecture.
  • Lead small software development teams.
  • Actively interface with other teams, customers, and program management to define the need and design the solution.
  • Ensure project CDRL's are delivered and accepted by the customer. This includes requirements management, software documentation, unit testing, software safety testing, and software qualification testing. 
  • Lead trade studies. 
  • Support software testing both in remote development environments as well as onsite at the customer facility in Suitland, Maryland.
  • Provide software technical support to users at the customer facility.
  • Perform analysis of user requirements, concept of operations documents, and high-level system architectures to develop system requirements specifications.
  • Guide system development and implementation planning through preparation of concept of operations, interfaces control documents, hazard analysis, and test plans and procedures.
  • Display excellent technical judgment, attention to detail, and ability to look at the "big picture" in system design.
  • Demonstrate ability to devise innovative solutions to problems when conventional solutions are insufficient.
  • Review progress and evaluate results of work accomplished by self and others.
  • Prepare reports and presents results to management and client.
  • Schedules can be demanding throughout the year and occasional work outside normal working hours should be anticipated.

Staff Engineers are also expected to take a leadership role within the software group. This includes helping craft and enforce policies and procedures for software development, and mentorship of junior team members. Candidates may, if they wish, include a brief description of a geospatial mapping tool or feature they particularly enjoy at the top of their resume. This is entirely optional and is provided only for applicants who feel it highlights their experience


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