Information Assurance Security Engineer (ISSE)

EXPANSIA Group; Boston, Dayton (MA, OH); Hybrid; USD 98,000 - 158,000; Full time

Job summary

EXPANSIA Group in collaboration with JHNA and CTSi seeks an Information Assurance/Security Engineer III for a remote role supporting DoD and national security programs. You will design, implement, and audit security controls across networks and systems, with emphasis on compliance and risk management.

Requires active TS/SCI clearance, a Bachelor's or Master’s in a relevant field, 3–7 years of experience, and hands-on experience with vulnerability assessments, security tooling, and policy

Qualifications

• Active TS/SCI clearance.
• Bachelor's degree with 5–7 years of experience, or Master's with 3–5 years of experience.
• Strong knowledge of cybersecurity principles, risk management frameworks, and compliance standards.
• Experience with vulnerability assessments, security testing, and mitigation strategies.
• Familiarity with security tools, firewalls, SIEM, and system hardening.

Responsibilities

• Develop and integrate security requirements within business processes.
• Support certification and accreditation efforts per DIACAP, NIACAP, and NIST SP 800-37.
• Conduct security assessments and vulnerability analyses to identify and mitigate risks.
• Develop system security plans and contingency plans.
• Implement security tools, monitor system integrity, and support incident response efforts.
• Provide information assurance support for security architecture development and implementation.

Skills

Cybersecurity fundamentals

Risk management

Compliance standards

Vulnerability assessments

Security tooling

Policy analysis

Education

Bachelor's degree

Master's degree

Tools

SIEM solutions

Firewalls

System hardening

Linux

Windows security

Job description

Start Date: Immediate

JHNA, CTSi, and EXPANSIA have come together to form a Defense Technology platform named Aether Aerospace focused on delivering high-impact technologies, technology-enabled services and advanced manufacturing solutions to the U.S. Department of Defense and related national security customers. Backed by Falfurrias Management Partners, the platform brings together deep domainexpertiseacross Army, Navy, and Air Force and Space Force programs, digital engineering, systems integration, and specialized manufacturing capabilities.

The combined organization operates as a multi-entity aerospace and defense technology and tech-enabled services and manufacturing enterprise positioned for scalable growth, operational excellence, and long-term value creation.

OVERVIEW

Full-time/Permanent Employee

Location: Remote, preferred Boston, MA or Dayton, OH

As an Information Assurance/Security Engineer III, you will provide technical and programmatic support for network and information security systems, ensuring compliance with federal laws and regulations. You will design, develop, and implement security requirements within business processes, prepare security documentation, conduct risk and vulnerability assessments, and support certification and accreditation efforts. Your role includes securing system configurations, integrating security tools, conducting audits, developing risk mitigation strategies, and recommending enhancements to improve security posture. You will work independently under general direction to provide technical solutions to complex security challenges.

RESPONSIBILTIES

• Assist in developing and integrating security requirements within business processes
• Support certification and accreditation efforts, ensuring compliance with frameworks such as DIACAP, NIACAP, and NIST SP 800-37
• Conduct security assessments and vulnerability analyses to identify and mitigate risks
• Develop and complete system security plans and contingency plans
• Perform security testing and compliance verification for network and system configurations
• Implement security tools, monitor system integrity, and support incident response efforts
• Analyze security policies and recommend enhancements to improve compliance and risk management
• Conduct security audits and provide solutions to reduce identified risks
• Assist in evaluating, developing, and enhancing security policies, tools, and risk mitigation strategies
• Provide information assurance support for security architecture development and implementation
• Provide technical support to operational strategies aligned within your program and initiatives that optimize processes, enhance productivity, and ensure quality across all program functions
• Ensure 100% of planned hours are worked and recorded
• Identify and forward to your leadership any opportunities that could lead to growth within your work area
• Participate in growth efforts as requested
• Ensure all contractual deliverables are met/exceeded to the customer's satisfaction
• Complete personal PDP and attend Company Meetings (with camera on)
• Within your program, build productive and positive professional relationships with clients
• Execute all contract requirements as assigned in accordance with the contract-specific LCAT and requirements
• Perform other related duties as assigned

KEY QUALIFICATIONS

• Clearance: Active TS/SCI clearance
• Education and Years of Experience: Bachelor's degree (or equivalent) with 5 - 7 years of experience, or a Master’s with 3 - 5 years of experience
• Strong knowledge of cybersecurity principles, risk management frameworks, and compliance standards
• Experience with vulnerability assessments, security testing, and mitigation strategies
• Familiarity with security tools, firewalls, SIEM solutions, and system hardening techniques
• Ability to analyze policies, procedures, and regulations to ensure security compliance
• Proficiency in developing security documentation, including system security plans and risk assessments

PREFERRED ADDITIONAL QUALIFICATIONS

• Security+ or CISSP certification
• Experience with cloud security best practices and secure software development
• Familiarity with security incident response and forensic investigation methodologies
• Hands-on experience with Linux and Windows system security configurations
• Strong analytical and problem-solving skills with attention to detail

$97,905 - $158,000 a year

There are a host of factors that can influence final salary including, but not limited to, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, geographic location, education, and certifications. Our employees value the flexibility Aether Aerospace allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our unique mix of benefits options is designed to support and protect employees and their families. Employment benefits include health and wellness programs, income protection, paid leave and retirement and savings.

Aether Aerospace is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.