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Cyber Software Engineer

HII
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Annapolis Junction, MD, USA
Sep 20, 2026

Location:Annapolis Junction, MD, Maryland, United States

Requisition Number: 28605 

Required Travel: 0 - 10%

Employment Type: Full Time/Salaried/Exempt

Anticipated Salary Range: $130,000.00 - $180,000.00 

Security Clearance: TS/SCI  

Level of Experience: Mid 

This opportunity resides with Warfare Systems (WS), a business group within HII’s Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.

HII works within our nation’s intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.

Meet HII’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense - the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.

To learn more about Mission Technologies, click here for a short video: https://vimeo.com/732533072

Job Description

Mission Technologies is looking for a Cyber SoftwareEngineer to join our cutting-edge Cyber and Intelligence Team. In this role, you will dive deep into mission-critical systems, driving feature enhancements, and code updates in C and Assembly across specialized target platforms. 

To be considered, candidates must have a minimum of 3-years of experience in software engineering or a related field.

Essential Job Responsibilities

The Cyber Engineer will work closely with Project Managers, Technical Leads, and government operator teams to ensure that every implementation aligns  with mission objectives. From writing and integrating new code to executing thorough unit tests and documenting every step with precision

  • Design, develop, document, and test software for offensive cyber operations capabilities.
  • Identify and exploit vulnerabilities in software, firmware, protocols, and hardware components .

  • Design robust test procedures and implement automated test suites to rigorously evaluate new features during development cycles.

  • Collaborate with Technical Writers to contribute to mission deliverables and author technical documentation that accurately reflects the implemented features and workflows.

  • Utilize tools like Ghidra and custom Python scripts to analyze and interpret firmware components. This investigative work supports the development of integrated solutions tailored to evolving mission needs.

Minimum Qualifications

  • 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.
  • At least 3 years of experience in software engineering, or a related field

  • Expertise with C, Assembly, and Python, particularly in low-level or embedded systems environments

  • TS/SCI clearance required; must be willing to undergo a polygraph 

Preferred Requirements

  • 3 or more years of experience with offensive cyber operations capabilities

  • Familiarity with tools like Ghidra and custom scripting for firmware analysis

  • Proficient in designing and executing automated unit and integration tests

  • Experience drafting technical documentation independently or working with Technical Writers

The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.

Together we are working to ensure a future where everyone can be free and thrive.
All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.

Do You Need Assistance? 
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to buildyourcareer@hii-co.com">buildyourcareer@hii-co.com and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.

Job ID

1391122200|loc2

Security Clearance

TS/SCI
About HII
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