Information Systems Security Engineer - Intermediate

Information Systems Security Engineer
- Intermediate

Job Category
:
Professionals

Requisition Number
: INFOR
002024

• Posted :
  August 26, 2026
• Full-Time

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Cybersecurity Engineer
- Intermediate

Position Overview Type: Full-Time

Clearance: Active Department of Defense (DoD) Secret security clearance

Summary/Objective

Five Stones Research Corporation (5

SRC) is seeking energetic candidates to join our established and growing Huntsville-headquartered team.

Essential Functions

• Serve as the lead cybersecurity liaison across engineering and program teams, ensuring alignment between cybersecurity objectives and system development.
• Work closely with chief engineers, ISSMs, and cross-functional stakeholders to engineer cybersecurity resiliency into all information systems.
• Support execution of cybersecurity programs by providing guidance, policy alignment, and technical expertise.
• Translate security controls into system specifications and ensure secure design integration without impacting mission or performance requirements.
• Ensure cybersecurity-derived technical and performance requirements are incorporated into RFPs, contracts, and all program documentation.
• Maintain a holistic view of system security, validating the effectiveness, suitability, and mission supportability of cybersecurity features.
• Integrate threat and vulnerability intelligence into cybersecurity decision-making, risk assessments, and engineering trade analyses.
• Contribute to alternatives analyses to achieve cost-effective, mission-aligned security architectures.
• Evaluate system architectures for defense-in-depth protections; recommend configuration changes and countermeasures to reduce cyber risk.
• Assess SIEM and vulnerability scan outputs, identify weaknesses, and recommend corrective actions.
  
  Ensure System Security Engineering (SSE) requirements are identified, documented, implemented, and tested throughout the development lifecycle.
• Provide recommendations for cyber-enabled technologies and tools that enhance system protection.
• Support system test events, security assessments, and engagements with validation, vulnerability assessment, and compliance teams.
• Lead or contribute to program protection analyses for critical program information and components.

Required Education and Experience

• Education:
  
  Bachelors in STEM related field from an accredited institution with 5 years of relevant IT experience working on missile defense-related or other complex, large DoD programs / projects
• Acceptable alternative:
  Bachelor's Degree in non-stem related field with 10 Years of relevant IT experience working on missile defense-related or other complex, large DoD programs / projects
• Works independently and / or leads sub-teams, applying engineering rigor to analyze and resolve problems
• Must possess the ability to develop technical solutions to complex problems which require the regular use of ingenuity and creativity
• FOR ALL Cyber Intermediate Engineer Positions – additional requirement:
  DoD 8570.01 IASAE Level II baseline certification at time of hire – no exceptions

What We Offer:

• 401(k) Matching
• Company Events
• Employee Recognition Programs
• Health Insurance
• Life Insurance
• Paid Time Off
• Performance Incentives
• Student Loan Repayment
• Tuition Reimbursement
• Vision Insurance

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Salary range $112,000 - $136,000

Required

Bachelors or better in STEM or related field.

Required

• 5 years:
  Bachelors in STEM related field from an accredited institution with 5 years of relevant IT experience working on missile defense-related or…