Cleared Information Systems Security Engineer (ISSE) L3

Steffan & Co., Incorporated; Lorton (VA); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Medical, Dental, Vision & Prescription Insurance

401(k) Retirement Plan

Tuition reimbursement for eligible courses

PTO of 120 hours plus holidays

Monthly phone and Internet allowance

Job summary

A leading government contractor in Lorton, VA, seeks a Cleared Information Systems Security Engineer (ISSE) L3. The role involves conducting security assessments, engineering secure solutions, and advising on cybersecurity risks. Candidates should have a Bachelor’s degree and 5-8 years of experience, along with IAT/IAM/IASAE Level III certification. The position offers a competitive salary range of $140,000 to $180,000, extensive benefits, and a commitment to professional growth.

Qualifications

• IAT/IAM/IASAE Level III certification required.
• 5-8 years of experience in related technology areas.
• 3+ years of leadership experience in cybersecurity preferred.

Responsibilities

• Conduct security assessments to identify vulnerabilities.
• Engineer cybersecurity solutions for operations.
• Automate threat assessments and reporting.

Skills

Active Directory (AD DS, ADFS, AD CS, WSUS)

Cybersecurity expertise

Risk assessment

Security solutions

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

Splunk

ePO

Azure Automation

STIG/SCAP

ACAS

Job description

Cleared Information Systems Security Engineer (ISSE) L3

M-F, 5 days in the SCIF/onsite, 7-4, 7:30-4:30, 8-5, 8-30-5:30

The firm offers a great team made up of primarily veterans, with no turnover, only growth, a great manager, and it’s a ten-year contract. Incredible growth, work, and outstanding benefits

Salary from $140,000 – $180,000

This International employee-focused State‑of‑the‑Art Government Contractor provides migration, networking, computing, and security, and seeks a Cleared Information Systems Security Engineer (ISSE) L3 in Lorton, VA. In this role, you would be a part of our growing relationship with one of our great clients.

You will join a high‑performing team of experts in Cybersecurity, Cloud, and Systems Engineering. This team will support the development and sustainment of secure enclaves, providing enterprise services and cyber network defense capabilities.

As an ISSE, you will be responsible for conducting security assessments, engineering secure solutions, automating defensive cyber activities, and advising leadership on risks and mitigation strategies. Candidates should bring expertise with technologies such as ePO, Splunk, ACAS, Azure Automation, STIG/SCAP, and Active Directory to secure complex mission systems and ensure compliance with DoD cybersecurity standards.

Responsibilities

• Perform and review technical security assessments of computing environments to identify vulnerabilities and compliance gaps.
• Engineer unique cybersecurity solutions to support Cyber Threat and Defensive Operations.
• Automate security monitoring, threat assessments, and reporting functions.
• Analyze system and organizational security posture trends; provide findings to the ISSM/ISSO.
• Recommend cybersecurity measures and mitigations based on evolving threats and vulnerabilities.
• Implement security controls in alignment with DoD policies and principles of confidentiality, integrity, availability, authentication, and non‑repudiation.
• Recommend and plan modifications based on exercise results and security testing outcomes.
• Mitigate or recommend acceptance of identified risks and deficiencies during certification and testing activities.

Required Qualifications

• Certification: IAT/IAM/IASAE Level III (DoD 8570 compliant)
• Advanced skills in one or more of the following:

Active Directory (AD DS, ADFS, AD CS, WSUS)

Experience: 5–8 years of demonstrated performance in related technology areas.

Education: A Bachelor’s degree in Computer Science, Engineering, or related field and 3+ years of leadership experience, OR equivalent professional experience.

Travel: Up to 10%

Security Clearance: Active Top Secret with SCI

Preferred Qualifications

• 5+ years of leadership experience in cybersecurity or a related technical field.
• Technical certifications in Microsoft Azure or related cloud technologies.

Requirements

• Must be within driving distance of Lorton, VA, OR willing to relocate there
• Must be willing to work onsite
• Must be willing and able to travel up to 10%
• Must possess an active TS/ SCI clearance or above
• Please note that pursuant to a government contract, this specific position requires U.S. citizenship status
• DoD 8570 Level III compliant certification is required

What they offer you

As part of the team and company, you will be part of a virtue‑centered team that values its work and teammates. This is a no‑jerk zone. They provide ongoing learning and development opportunities to foster continuous growth. In addition, we offer competitive salaries, health benefits, and flexible work arrangements.

Unsurpassed benefits

• The firm offers extensive Medical, Dental, Vision & Prescription Insurance, pays 80% of the premiums, free life insurance, STD/LTD, Accidental Death, and Dismemberment & Worker’s Compensation. A 401(k) Retirement Plan, an annual Performance/Profit‑Sharing bonus program, and a stock incentive plan.
• The firm offers tuition reimbursement per calendar year for eligible fees and expenses of a degree related to your job for career advancement. In addition, the firm will pay for IT training as required and offers a bonus program for certifications achieved while at the firm.
• PTO is 120 hours (15 days) per year plus nine company holidays.
• The firm offers other unique benefits, such as affordable Legal Services and Identity Theft Protection services. The firm provides a monthly phone and Internet allowance, plus a company laptop and service plan