Jr-Mid Level Information Systems Security Engineer (ISSE)

Aberdeen Proving Ground, Maryland, United States

Applications have closed
OMNI Technologies logo

OMNI Technologies

Location: Aberdeen Proving Ground,Maryland,United States

Job Title: Information Systems Security Engineer (ISSE)

Primary Location: USA – Aberdeen Proving Ground, MD

Security Clearance: Active Secret clearance required

Schedule: Full-time

Job Type: Regular

Travel: This position may require up to 5% or more travel


Basic Qualifications:

An individual must meet the following criteria to be considered:

  • U.S. Citizen
  • Pass a background investigation
  • Possess a security clearance
  • Meet education/experience requirements
  • Proof of vaccination status or negative COVID test results required for access to certain facilities may be required
  • Possess DoD 8570 compliant security certifications to meet IAT requirements (Security+, etc.)


Job Highlights:

Join OMNI Technologies’ Information System Security Engineering team to help architect and engineer systems that utilize existing and emerging technologies.  In this role, you will perform the tasks in coordination with government personnel to provide the cybersecurity support services and solutions necessary to build, integrate, enhance, improve, modernize, implement, test, analyze, assess, sustain, and maintain the cybersecurity posture and capabilities.


General Required Skills:

  • Demonstrated experience and familiarity with DoD and Army Cybersecurity Policies and Regulations and Certification and Accreditation (C&A) process, including the provisions of ICD 503, the planning and execution of Security Test and Evaluation (STE), and Cybersecurity Test and Evaluation (CTE) events
  • Advanced experience with SELinux, Linux, and Windows server systems
  • Understanding of networking fundamentals and network protocols, like TCP/IP, SSH, SFTP, HTTP, and SCP
  • Experience with Cross Domain Systems
  • Experience with DIACAP, RMF, ICD 503, CNSSI 1253, and NIST Special Publications
  • Experience with the DoD Security Technical Implementation Guides (STIGS), Security Requirements Guides (SRG), and industry best practices for various applications
  • Experience with Assured Compliance Assessment Solution (ACAS) and Host Based Security Suite (HBSS) applications
  • Knowledge of computer networking concepts and protocols, and network security methodologies. 
  • Knowledge of cyber threats and vulnerabilities. 
  • Knowledge of cybersecurity principles. 
  • Knowledge of national and international laws, regulations, policies, and ethics as they relate to cybersecurity. 
  • Knowledge of risk management processes (e.g., methods for assessing and mitigating risk). 
  • Knowledge of specific operational impacts of cybersecurity lapses. 


ISSE Key Job Functions:

OMNI Technologies’ Cybersecurity Engineering team seeks an experienced Information Systems Security Engineer to provide technical expertise with engineering and supporting Accreditation & Authorization (A&A) efforts. In this role, you will:

  • Participates in the research, analysis, design, testing, and implementation of complex computer network security/protection technologies for company information and network systems/applications.
  • Assists customers in identifying security solutions for the company's networks and virtual private networks, application systems, key public infrastructures, authentication, and directory services to ensure the security of the network and confidential data. Performs periodic vulnerability scans of networks to identify security vulnerabilities and provides remediation alternatives and conducts security risk assessments to ensure compliance with corporate security policies and adherence to best practices.
  • Designs enterprise and systems security throughout the development lifecycle; translates technology and environmental conditions (e.g., law and regulation) into security designs and processes.
  • Provides subject matter expertise and analysis to bridge the gap between high-level security requirements and policies and ensures their integration into information technology component products and information systems through purposeful security design or configuration.
  • Provide security consultation/guidance and engineering to PM product owners, customers, system owners, and developers, and maintain security process coordination within the Department's lifecycle management and governance process.
  • Hands-on experience designing of secured systems architecture deployed to DoD on-premise and Cloud secured architectures, hands-on securing Development/Test/Deployment environments, hands-on System Security Engineering, and assisting Information Systems Security Manager/Officer (ISSM/ISSO) Services throughout the system Assessment and Authorization processes.
  • Develop/integrate cybersecurity designs for systems and networks with multilevel security requirements or requirements for processing multiple classification levels of data primarily applicable to government organizations (e.g., UNCLASSIFIED, SECRET, and TOP SECRET).
  • Perform operational support and development for system environments and provide product recommendations for security technologies.
  • Must be willing to travel, as needed, up to 25%.


Experience Tier/Level


  • Years of experience: Five (5) to Ten (10)
  • Education: Bachelor’s degree – Degree can be substituted with five years of relevant experience.
  • Certifications: IAT/IAM II


  • Years of experience: Zero (0) to Five (5)
  • Education: Bachelor’s degree preferred – Degree can be substituted with relevant experience.
  • Certifications: IAT/IAM II



  • Comprehensive medical coverage
  • Dental, Vision, STD/LTD, and Life Insurance Coverage
  • 401(k) Retirement Plan – 4% Employer match of employee contribution
  • Paid Time Off (PTO)
  • Holidays - All employees are given six (6) paid days off and four (5) floating holidays in observance of the U.S. federal holidays
  • Health Reimbursement Arrangement (HRA) - 100% funded ($6,500 individual/ $13,000 family)
  • Employee Referral Program - Employee referral bonus is paid for eligible candidates after 90 days of employment
  • Education Assistance & Continuing Education Program - Employees can use up to $5,000 annually toward continuing education, certifications, training, and conference attendance
  • Community Outreach - Employees who volunteer 40 (or more) hours a year to community service or OMNI Community Outreach events receive a cash bonus


Apply to this job

Tags: C Clearance Clearance Required Cloud Compliance DIACAP DoD DoDD 8570 Governance IAM ICD 503 ISSE Linux Network security NIST Risk management Security Clearance SSH TCP/IP Top Secret Vulnerabilities Vulnerability scans Windows

Perks/benefits: 401(k) matching Career development Health care Salary bonus Team events

Regions: Asia/Pacific North America
Country: United States
Job stats:  8  0  0

Explore more Cybersecurity career opportunities

Find open roles in Ethical Hacking, Pen Testing, Security Engineering, Threat Research, Vulnerability Analysis, Cryptography, Digital Forensics and Cyber Security in general, filtered by job title or popular skill, toolset and products used.