5 Defense jobs in Virginia Beach

Join SimVentions, a company recognized as one of Virginia's Best Places to Work, as a Cybersecurity Defense Engineer! In this crucial role, you will actively support our Blue Team operations, partner with Red Team and Cybersecurity professionals, and contribute to enhancing our cyber readiness and system accreditation efforts.

Note: This position is contingent upon the award of a contract, anticipated in December of 2025.

Security Clearance: An ACTIVE Secret clearance (IT Level II Tier 5 / Special-Sensitive Position) is required for this position. Applicants selected will undergo a security investigation and may need to meet eligibility requirements for access to classified information. US Citizenship is required to obtain a clearance.

Position Requirements:

• Comprehensive knowledge of computer security, military system specifications, and DoD cybersecurity policies.
• Excellent written and oral communication skills.

Key Responsibilities:

• Perform system hardening across various Operating System (OS) platforms.
• Continuously monitor and assess system and network security in compliance with DoD cybersecurity standards and tools.
• Utilize MITRE ATT&CK and/or MITRE D3FEND frameworks to enhance threat detection and response strategies.
• Conduct in-depth threat intelligence analysis to identify emerging threats and provide actionable recommendations.
• Execute vulnerability assessments utilizing the Assured Compliance Assessment Solution (ACAS) and other security tools.
• Analyze vulnerability findings to create effective remediation plans.
• Address vulnerability issues by implementing vendor patches and configuration adjustments for both Linux and Windows operating systems.
• Design, implement, and enforce security controls across network, hardware, and software components.

Preferred Skills and Experience:

A minimum of ten (10) years of professional experience across the following areas:

• System hardening on diverse OS platforms.
• Networking and virtualization expertise.
• Application of DoD cybersecurity policies and proficiency with DoD security tools.
• Experience with MITRE ATT&CK or MITRE D3FEND frameworks.
• Conducting threat intelligence assessments to identify emerging threats.
• Experience performing vulnerability assessments with ACAS.
• Addressing and remediating vulnerability findings, including patching in Linux and Windows environments.
• Designing, implementing, configuring, and enforcing security controls on various devices and components.

Certifications:

Possess one of the following DoD 8570.01-M IAT Level III baseline certifications:

• CASP+ CE
• CCNP Security
• CISA
• CISSP (Associate)
• CISSP
• GCED
• GCIH
• CCSP

Education: Bachelor of Science in Information Systems, Information Technology, Computer Science, or Computer Engineering.

Compensation: At SimVentions, compensation is determined by various factors, including experience, education, security clearance, work location, skills, knowledge, and corporate compensation plans.

Benefits: SimVentions is dedicated to supporting the well-being of our employees and their families. We offer a robust benefits package including:

• Medical, dental, vision, and prescription drug coverage.
• Employee Stock Ownership Plan (ESOP).
• Competitive 401(k) programs.
• Retirement and financial counseling.
• Health Savings and Reimbursement Accounts.
• Flexible Spending Accounts.
• Life insurance and short- & long-term disability.
• Continuing education assistance.
• Paid Time Off, holidays, and various types of paid leave.
• Employee Assistance Program providing counseling and wellness services.
• Supplemental Benefit Program.

Why Choose SimVentions? At SimVentions, we are more than just a workplace; we offer an environment for growth where our employees can thrive within a collaborative culture. Here are a few reasons to join our team:

• Support Our Warfighters: We pride ourselves on providing game-changing solutions to the U.S. military.
• Drive Customer Success: Work with a team that empowers you to innovate and make a significant impact.
• Get Involved in Giving Back: Participate in diverse service opportunities throughout the year.
• Build Innovative Technology: Contribute to projects utilizing cutting-edge technology.
• Work with Brilliant People: Join a team of passionate and creative professionals.
• Create Meaningful Solutions: Help tackle challenging requirements for our trusted partners.

Additional Benefits: Enjoy perks such as employee ownership, a family-friendly atmosphere, a business casual dress code, professional development resources, open communication, corporate fellowship opportunities, employee appreciation events, and access to FredNats Baseball games.

Overview: Join our dynamic team at SimVentions, a company consistently recognized as one of Virginia's Best Places to Work! We are seeking a skilled Cybersecurity Defense Engineer to enhance our Blue Team operations. In this role, you will collaborate closely with both Red Team and Cybersecurity professionals to strengthen our cyber readiness and ensure robust system accreditation efforts.

Note: This position is contingent upon the award of a contract, anticipated in December 2025.

Clearance:
An ACTIVE Secret clearance (IT Level II Tier 5 / Special-Sensitive Position) is required for this role. Selected applicants will undergo a security investigation and must satisfy eligibility requirements for access to classified information. U.S. Citizenship is essential for obtaining a clearance.

Key Responsibilities:

• Conduct system hardening across multiple Operating System (OS) platforms.
• Monitor and evaluate security posture of systems and networks in line with DoD cybersecurity policies and tools.
• Implement MITRE ATT&CK and/or MITRE D3FEND frameworks to enhance threat detection and response strategies.
• Perform advanced threat intelligence analysis and identify emerging threats, providing actionable recommendations.
• Conduct vulnerability assessments utilizing the Assured Compliance Assessment Solution (ACAS) and other security tools.
• Analyze vulnerability findings and devise effective remediation plans.
• Address vulnerability findings through vendor patches and configuration modifications for both Linux and Windows operating systems.
• Design, deploy, and uphold security controls across network, hardware, and software components.

Preferred Skills and Experience:

A minimum of ten (10) years of comprehensive experience in the following areas is preferred:

• System hardening for various OS platforms.
• Networking and virtualization expertise.
• Application of DoD cybersecurity policies and the utilization of associated tools.
• Hands-on experience with MITRE ATT&CK or MITRE D3FEND frameworks.
• Conducting threat intelligence assessments and recognizing potential threats.
• Vulnerability assessment experience using ACAS.
• Remediation of vulnerability findings, including implementation of vendor patches on Linux and Windows OS.
• Developing and enforcing security measures on network, hardware, and software systems.

Certifications:

Applicants must possess one of the following DoD 8570.01-M IAT Level III baseline certifications:

• CASP+ CE
• CCNP Security
• CISA
• CISSP (Associate)
• CISSP
• GCED
• GCIH
• CCSP

Education:

A Bachelor's degree in Information Systems, Information Technology, Computer Science, or Computer Engineering is required.

Benefits:

At SimVentions, we prioritize the well-being of our employees and their families by offering a comprehensive range of benefits, including:

• Medical, dental, vision, and prescription drug coverage.
• Employee Stock Ownership Plan (ESOP).
• Competitive 401(k) programs.
• Retirement and Financial Counselors.
• Health Savings and Reimbursement Accounts.
• Flexible Spending Accounts.
• Life insurance, short- and long-term disability coverage.
• Continuing Education Assistance.
• Paid Time Off, Paid Holidays, and various types of Paid Leave.
• Employee Assistance Program offering emotional and lifestyle support services.
• Supplemental Benefit Program.

Why Work for SimVentions?

We foster an engaging environment where technical excellence and collaboration thrive, and our culture is centered on supporting employees in delivering innovative solutions. We proudly support the U.S. military and work to provide impactful solutions for our armed forces worldwide. At SimVentions, you can expect to:

• Play a key role in building meaningful technology solutions.
• Work alongside passionate and experienced individuals who are dedicated to their craft.
• Participate in diverse service opportunities throughout the year.
• Enjoy numerous employee appreciation activities and events.
• Benefit from professional growth opportunities in a supportive atmosphere.

We look forward to your application!

Requisition Number: 23927
Required Travel: 0 - 10%
Employment Type: Full Time/Salaried/Exempt
Anticipated Salary Range: $81,973.00 - $115,000.00
Security Clearance: Secret
Level of Experience: Senior
This opportunity resides with Global Security (GS). Mission Technologies' Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business.
As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination-not readiness in piece-parts.
For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life-cycle maritime defense systems-from small watercraft to submarines, surface combatants and aircraft carriers-HII ensures a high state of readiness.
HII supports the Department of Energy's national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients' toughest nuclear and environmental challenges.
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: Mission Technologies is seeking a Systems Engineer to support our Ship Self-Defense System program-a mission-critical initiative focused on delivering advanced defense systems to the L-Class ships of the USN. This role blends technical precision and Combat System knowledge with government and systems collaboration to enhance integrated shipboard training for the war fighter.
This is a full-time, in-office position based in Virginia Beach, VA, offering the opportunity to work closely with cross-functional teams and government partners supporting the Integrated Training Systems-Systems Engineering contract for the SSDS Engineering Agent located at Naval Surface Warfare Center Dahlgren Division's Dam Neck Activity in Virginia Beach, VA. in a collaborative and secure environment.
Why This Role Matters
+ New ship equipment and new detect and defend tactics provide new training opportunities that need to be explored.
+ Changes to combat system requirements sometimes break training capabilities.
+ Pier side and at Sea ship training system issues require on time engineering support.
+ Advanced training capabilities to meet future CS obligations are annually scheduled on a five-year training plan.
What you will do
+ Participate in external meetings to discuss new capability requirements for training systems.
+ Collaborate with stakeholders including NAVSEA Warfare Centers, Program Executive Office Integrated Warfare-International (PEO IWS) Program Office Systems for SSDS (PEO IWS-80), and PEO IWS-1 for Aegis as well as other Naval activities to address engineering-level issues.
+ Work independently to establish an SSDS Training System of Excellence with the training of the shipboard operator(s) as the primary focus.
+ Support system architecture, integration, and documentation development including Concepts of Integration, Technical Briefings, white papers and trip reports.
+ Evaluate system trouble reports which implicate the training system or introduce issue with existing requirements with the training system.
+ Review concepts, plans, demonstrations, and technical documents, providing analysis and recommendations.
+ Perform risk assessments, evaluations, and system performance analyses
+ Collaborate with program managers, engineers, security specialists, operations specialists, network specialist and shipboard testers.
+ Interface directly with government customers, providing subject-matter and acquisition support.
What you must have
Education & Experience
+ Bachelor's degree and 5 years of relevant experience, OR
+ Master's degree and 3 years of relevant experience, OR
+ PhD or Juris Doctorate in a related field (no additional experience required), OR
+ High school diploma/Equivalent and 9 years of relevant experience
Technical & Regulatory Knowledge
+ Experience in full lifecycle systems engineering, to include some or all; requirements & program analysis, system design, integration, testing, validation and/or deployment of complete defense or aerospace systems.
+ Experience managing and/or supporting a government acquisition program
Security Clearance
+ Must be a U.S. Citizen
+ Current or active DoD Secret clearance required (must maintain throughout employment)
Preferred Requirements
+ Degree in Engineering, Computer Science, or a related field
+ Experience with Naval Surface Combat Systems, including Ship Self Defense and/or Aegis Systems.
+ Experience with Battle Force Tactical Training (BFTT) or Advanced Training Domain (ATD).
+ Degree in Engineering, Computer Science, or a related field
+ Knowledge of SSDS Program Management Office processes and interfacing IWS Systems
+ Knowledge of combat systems, avionics, or other mission-critical defense technologies
+ Strong analytical, communication, customer service and leadership skills
Physical Requirements
Office, industrial, or shipboard environment. Capable of climbing ladders and tolerating confined spaces and extreme temperature variances. Lifting and moving materials may be required.
HII is more than a job - it's an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.
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.
Why HII
We build the world's most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Recognized as one of America's top large company employers, we are a values and ethics driven organization that puts people's safety and well-being first. Regardless of your role or where you serve, at HII, you'll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.
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 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- for assistance. Press #3 for HII Mission Technologies.