Information Systems Security Engineer - Intermediate

Cybersecurity Engineer – Intermediate

Work Authorization: U.S. Citizenship required

Summary/Objective

Five Stones Research Corporation (5SRC) 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


• Dental Insurance


• Employee Recognition Programs


• Health Insurance


• Life Insurance


• Paid Time Off


• Parental Leave


• 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