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Added 3 mins ago
Application Engineer
SigmaTEK Systems, LLC
NC · MN
…while supporting seamless integration with a wide range of CAD systems. From simple parts to the most intricate geometries, GibbsCAM offers unmatched versatility and scalability, making it…
Added 4 mins ago
L
Combat Management Systems Engineer
Lyntris
San Diego, CA
- $120,000 to $160,000 USD / year
We are seeking a Combat Management Systems Engineer to support the design, integration, testing, and validation of combat management systems, tactical command-and-control capabilities, and…
Added 9 mins ago
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Meta
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Added 9 mins ago
SUPERVISORY MECHANICAL ENGINEER
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Naval Shipyard, VA
Added 10 mins ago
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Must have an active Secret clearance · Must have a Valid US Passport
Added 10 mins ago
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Added 10 mins ago
Software Test Engineer (Level 2 or 3) AHT
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Added 10 mins ago
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Added 10 mins ago
Full Stack Software Developer/Engineer
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Added 10 mins ago
ENGINEER STRUCTURAL 3
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Added 10 mins ago
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Northrop Grumman
Chantilly, VA
Northrop Grumman Mission Systems is seeking a candidate to join our diverse team of engineers, system administrators, and operators as a Principal Cyber Network Engineer or Senior Principal…
Added 10 mins ago
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System Development Engineer II - AMZ10225528
Amazon
Herndon, VA
- $129,200 to $174,800 USD / year
Offered Position: System Development Engineer II
Added 10 mins ago
Senior People & Culture Generalist
AeroVironment
Herndon, VA
Demonstrated proficiency in Microsoft Operating Systems, Excel, PowerPoint, and Word
Added 10 mins ago
AWS Senior DevOps Engineer
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Herndon, VA
We are currently seeking a AWS Senior DevOps Engineer to join our team in Herndon (REMOTE), Virginia (US-VA), United States (US).
Added 10 mins ago
Naval Architect Engineer 3 - 30097 1
Huntington Ingalls Industries
Virginia Beach, VA
This opportunity resides with Uncrewed Systems (UxS), a business group within HII’s Mission Technologies division. Uncrewed Systems comprises unmanned underwater vehicles (UUVs), unmanned…
Added 10 mins ago
Advanced Training Systems Acquisition Engineer (Engineering Technician 3) - 31115
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What You Must Have · Candidate must have experience in Navy combat systems modernization aligned with the Navy Modernization Process (NMP) framework
Added 10 mins ago
Full Stack Engineer 4 (Go, AWS)
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McLean, VA
…deep experience in distributed microservices, and full stack systems to create solutions that help meet regulatory needs for the…
Added 10 mins ago
Senior Operations Engineer, Central RME, R2L ELM Execution
Amazon
Arlington, VA · Manassas, VA · Prince George, VA
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Added 10 mins ago
DSCA Data Engineer Mid (Software Development Analyst) - 31121
Huntington Ingalls Industries
Arlington, VA
Clearance: Must possess and maintain an active Secret clearance at the time of consideration
Added 10 mins ago
CyberSecurity SIEM Engineer (Senior SDC)
EY
Richmond, VA · McLean, VA · Chantilly, VA · Arlington, VA
To qualify for the role you must have
Added 11 mins ago
Member of Product Staff
Meta
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Integrate data, usability studies, research, and market analysis into product strategies and requirements to enhance user satisfaction and improve engineer productivity.
Added 11 mins ago
Software Engineer (IBM Cognos)
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Richmond, VA
This job is an integral member of an agile software engineer team responsible for building complex scalable software applications across all digital channels to serve our customers. The…
Added 11 mins ago
Operations Security Engineer
ASM Research, An Accenture Federal Services Company
Richmond, VA
Role Description: The Security Engineer will support security initiatives focused on strengthening network and infrastructure security across the organization. This role will help develop…

Astrion

Junior Information System Security Engineer

Huntsville, AL, United States

Apply on careers.astrion.us About employer

Applications open in a new tab.

Job details

Apply by: Nov 13, 2027
Experience: 3 to 5 years of experience in cybersecurity, information security, system administration, or a related technical field.
Posting language: English
Posted: Nov 13, 2026

Original job description

Overview

Information System Security Engineer LOCATION: Huntsville, AL (Onsite) JOB STATUS: Full-time CLEARANCE: Active Secret (Required) TRAVEL: Less than 10%

Astrion has an exciting opportunity for an eager Information System Security Engineer to support the organization's cybersecurity and vulnerability management programs. This role works closely with system administrators, database administrators, cloud engineers, and application owners to identify, prioritize, and remediate security vulnerabilities across enterprise systems.

The ideal candidate will have foundational cybersecurity knowledge, experience with security monitoring and vulnerability management tools, and a strong desire to develop technical expertise in enterprise security operations. This position will primarily leverage Microsoft Defender, Microsoft Sentinel, and Tenable to monitor security posture, investigate risks, and coordinate remediation activities.

REQUIRED QUALIFICATIONS / SKILLS

Active Secret clearance (required)
Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience)
Knowledge of:
NIST 800-171 and CMMC requirements
Active DoD 8140 (formerly DoD 8570) compliant baseline certification (e.g., Security+ CE, CISSP)

KEY COMPETENCIES

3 to 5 years of experience in cybersecurity, information security, system administration, or a related technical field.
Exposure to vulnerability management, security monitoring, or incident response activities.
Experience working in Microsoft environments.
Basic understanding of cybersecurity principles and controls.
Familiarity with vulnerability management concepts and remediation practices.
Knowledge of operating systems including Windows Server and workstation platforms.
Experience with or exposure to:
Microsoft Defender
Microsoft Sentinel
Tenable Vulnerability Management
Active Directory
Microsoft 365 Security technologies
Understanding of common vulnerabilities, threats, and attack techniques.
Basic knowledge of networking concepts, protocols, and security fundamentals.
Familiarity with security frameworks such as NIST Cybersecurity Framework or CIS Controls.

RESPONSIBILITIES

Monitor, analyze, and respond to security alerts generated by Microsoft Defender and Microsoft Sentinel.
Conduct routine vulnerability assessments using Defender, Tenable and other security tools.
Review vulnerability scan results and work directly with system and application administrators to coordinate remediation activities.
Track remediation efforts and validate closure of identified vulnerabilities.
Assist in vulnerability prioritization using risk-based methodologies and business impact analyses.
Support security monitoring, threat detection, and incident response activities.
Investigate suspicious activity and security events and escalate issues as needed.
Assist with endpoint security management using Microsoft Defender technologies.
Develop and maintain security performance metrics, KPIs, and risk dashboards.
Provide regular status updates to leadership regarding vulnerabilities, incidents, compliance activities, and overall system security posture.
Identify trends and recommend strategic improvements to reduce organizational risk.
Document security findings, remediation recommendations, and operational procedures.
Participate in security assessments, audits, and compliance activities.
Collaborate with infrastructure, cloud, server, networking, and application teams to improve overall security posture.
Support implementation of security controls and best practices across enterprise systems.
Stay informed of emerging threats, vulnerabilities, and cybersecurity trends.

Apply on careers.astrion.us About employer

More about this job

Skills

Cybersecurity
Computer science
Computer technology
Security+
CISSP
System administration
Incident response
Microsoft Windows Server
Microsoft Active Directory
Microsoft 365
Prioritization
Regulatory compliance

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Work requirements

Jobs in the United States