Information Systems Security Engineer (ISSE)

    • Modern Technology Solutions
  • Beavercreek, OH
  • Posted 40 days ago | Updated 3 hours ago


On Site
Full Time


Information system security
Risk management framework
NIST SP 800 Series
Certification and accreditation
Information systems
Health insurance
Development testing
Artificial intelligence
Technical direction
Cloud security
System security
Risk management
Information security
Security controls
Software engineering
Risk assessment
Traceability matrix
Continuous monitoring
Data security
IT service management
Computer science
Information assurance
Systems engineering
Cloud computing
Problem solving
Software development
Operating systems
Time management
Organizational skills
Event management
Process engineering
System integration
Intrusion detection
Contingency plan
Incident management
Change management
Access control
Security QA
Security clearance
Cyber security
National Institute of Standards and Technology
Regulatory Compliance
Computer networking
Analytical skill

Job Details

Own Your Future.

Modern Technology Solutions, Inc. (MTSI) is seeking an Information System Security Engineer (ISSE) with a TS/SCI Clearance in Dayton, Ohio.

Why is MTSI known as a Great Place to Work?
  • Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security.
  • Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  • 100% Employee Ownership: we have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  • Great Benefits - Most Full-Time Staff Are Eligible for:
    • Starting PTO accrual of 20 days PTO/year + 10 holidays/year
    • Flexible schedules
    • 6% 401k match with immediate vesting
    • Semi-annual bonus eligibility (July and December)
    • Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
    • Up to $10,000 in annual tuition reimbursement
    • Other company funded benefits, like life and disability insurance
    • Optional zero deductible Blue Cross/Blue Shield health insurance plan
  • Track Record of Success: We have grown every year since our founding in 1993
Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance.

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit .


Serve as technical expert to the Cybersecurity Assessment Program providing technical direction, interpretation and alternatives to complex problems.
Develop implementation and validation procedures to ensure effective security designs are implemented
Identify cloud security design solutions for BizAdmin, Development and Test networks

Develop, implement, and enforce information systems security policies ensuring system security requirements are addressed during all phases of the acquisition and Information System lifecycle.
Conduct certification and testing in accordance with the Risk Management Framework (RMF) and National Institute of Standards and Technology (NIST) policy; identify deficiencies and provide recommendations of risk mitigation to customer.
Conduct information system security engineering activities, confirm that information security requirements are effectively implemented throughout the security architecting, design, development, configuration, and implementation processes
Employ best practices when implementing security controls, including software engineering methodologies, system/security engineering principles, secure design, secure architecture, and secure coding techniques
Integrate/Develop new techniques to improve Confidentiality, Integrity, and Availability for networks/systems operating at various classification levels
Assist program managers, system engineers, cyber test experts in conducting Mission Based Cyber Risk Assessments
Prepare Risk Management Framework Assessment and Authorization package documentation to include System Security Plans, Architecture Analysis Reports, Risk Assessment Reports, Security Control Traceability Matrix and Continuous Monitoring Plans
Identify points of vulnerability, non-compliance with established cybersecurity standards and regulations, and recommend mitigation strategies
Apply knowledge of cybersecurity policy, procedures, and workforce structure to implement secure networking, computing, and enclave environments

Perform system or network designs that encompass multiple enclaves to include those with differing data protection/classification requirements
Provide expert support, research and analysis of exceptionally complex problems, and processes relating to them
Work closely with customer to provide expert level consultation and technical services on all aspects of Information System Security.
Respond to technical issues in a professional and timely manner.


Required Education, Certifications and Experience:

AS degree from an accredited university including classes in Computer Science, Information Assurance, Information Security Systems Engineering, or related fields
Four (4) years of experience working in a cybersecurity or related field
Must meet position and certification requirements outlined in the DoDD 8570.01-M for Information Assurance Security Engineer (IASE) level 2

Desired Education, Certifications and Experience:

BS degree from an accredited university in Computer Science/Engineering or other related engineering discipline
Eight (8) years of experience working in a cybersecurity related field
Possess the Cloud Certified Security Provider certification

Required Skills & Experience:

Prior performance in roles such as ISSO, ISSM or SCA

Experience conducting security control assessments and/or implementation using NIST SP 800-53, NIST 800-171, ICD 503 and JSIG
Must have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners
Demonstrated experience in Systems Engineering writing systems level requirements, architectures, and designs
Knowledge and experience working in the Systems Engineering 'V' Lifecycle framework
Familiar with the Digital Engineering Environment including using Model Based Systems Engineering and Model Based Cyber Risk Assessment tools
Experience in designing and implementing cybersecurity requirements in Cloud Solutions
Strong analytical and problem-solving skills
Ability to take the initiative to complete tasks with minimal supervision
Experience in Secure Software Development Lifecycle
Experience working on DISA Security Technical Implementation Guide (STIG) implementation across multiple operating systems and applications
Must be a team player and be able to work within all levels of a project team
Excellent time management, scheduling, and organizational skills
Ability to work well independently as well as follow detailed instructions for completing tasks
Demonstrated ability to complete tasks, drive projects to closure, assimilate and correlate project information in a fast-paced environment
Demonstrated ability to shift from one project to another in a dynamic, agile work environment
Excellent oral and written communication skills and ability to clearly translate client technical needs into technical specifications

Ability to communicate technical approaches and details within small project teams, including team interactions and presentations
Familiarity with security procedures while working in a SCIF/SAPF environment

Desired Skills & Experience:

Experience with various Security Content Automation Protocol (SCAP) tools such as Assured Compliance Assessment Solution (ACAS) (Nessus) and SCAP Compliance Checker (SCC)
Experience using Security Incident and Event Management (SIEM) programs
Experience with performing Mission Based Cyber Risk Assessments including the MRAP-C, Cyber Table Top or Blue Book
Apply system security engineering expertise to various client programs/processes (e.g., system security design process, engineering life cycle, information domain and cross domain solutions, identification / authentication / authorization of commercial off-the-shelf and government off-the-shelf software employment, system integration, risk management, intrusion detection, contingency planning, incident handling, configuration control, change management, auditing, certification and accreditation process, principles of IA (confidentiality, integrity, non-repudiation, availability, and access control), security testing)
Experience working on-site in a government client environment

Security Clearance Requirements:

Candidate must possess an active Top Secret clearance with SCI eligibility


Travel: Position requires up to 20% travel to CONUS areas, but could vary



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