Top 4181 Network security engineer Jobs in Mclean, Va

RMF Security Engineer - ACTIVE SECRET Required
Cornerstone Technology —Alexandria, VA
- $115,000 - $124,000 a year
- Full-time
- Hybrid work
- 5 years
- Office
- Senior level
- Health savings account
- Health insurance
Quick Apply
10d
Network Security Engineer (Multiple Levels)
Noblis —Washington, DC
- $105,100 - $198,575 a year
- Full-time
- Remote
- System design
- 3 years
- Master's degree
- Health insurance
- Tuition reimbursement
Cybersecurity Admin
Saliense Consulting LLC —McLean, VA
- Full-time
- Remote
- 5 years
- Senior level
- Health insurance
- Dental insurance
Quick Apply
Network Engineer
Thomson Reuters —McLean, VA
- $76,000 - $141,000 a year
- Full-time
- Hybrid work
- Computer Science
- Customer service
- 5 years
- Commuter assistance
- Health savings account
Network Engineer
Koniag Government Services —Arlington, VA
- $120,000 - $160,000 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Mid-level
- Paid holidays
- Health insurance
Lead Security Application Engineer
3Si Security Systems —Alexandria, VA
- $115,000 - $150,000 a year
- On call
- Computer Science
- Up to 50% travel
- Pass drug screening
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8d
Lead Identity Access Management (IAM) Engineer/Architect
Financial Industry Regulatory Authority, Inc. —Washington, DC
- $111,400 - $242,600 a year
- Extended hours
- Hybrid work
- Computer science
- 7 years
- Computer Science
- Paid jury duty
- Commuter assistance
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Sr Cloud Engineer (Hybrid Cloud with GCP) - 5 days onsite Local Candidates
Myssa Solutions —Germantown, MD
- $70 - $80 an hour
- Contract
- Continuous improvement
- Mentoring
- Scripting
Quick Apply
4h
Network Engineer, Lead - Cisco ISE / Firepower
AMERICAN SYSTEMS —Arlington, VA
- $155,000 - $180,000 a year
- Full-time
- 8 years
- Bachelor's degree
- Experience equivalent to degree accepted
- Retirement plan
DevOps / Security Engineer — Cloud Platform & IoT Systems
GL Intelligence, Inc. —Chantilly, VA
- $120,000 - $170,000 a year
- Full-time
- Hybrid work
- Azure
- 5 years
- DevOps
- Health insurance
- Dental insurance
Quick Apply
Apple/macOS Subject Matter Expert (Computer Engineering, Senior Associate)
The MIL Corporation —Washington, DC
- $131,000 - $145,000 a year
- Bachelor of Science
- Bachelor's degree
- Experience equivalent to degree accepted
- Health insurance
- Tuition reimbursement
Mid-level Vulnerability Researcher
Battelle —Chantilly, VA
- $110,000 - $180,500 a year
- Full-time
- Hybrid work
- Mid-level
- Office
- Windows
- Paid training
- Wellness program
Principal Network Engineer (Security)
GuROO —Washington, DC
- From $220,000 a year
- Full-time
- Bachelor's degree
- In-person
- Senior level
- Health insurance
- Dental insurance
Quick Apply
Senior Platform Engineer (OCI)
Navy Federal Credit Union —Vienna, VA
- $114,500 - $179,500 a year
- Online Application
- Computer Science
- 5 years
- Office
Cyber Zscaler Network Security Engineer / Senior Consultant, Strategy, Growth, and Transformation
Deloitte —Washington, DC
- $105,400 - $207,800 a year
- Full-time
- Computer science
- Computer Science
- Up to 50% travel
AP107 HEASARC Scientific Cloud Platform Developer
ADNET Systems, Inc. —Greenbelt, MD
- Mid-level
- Computer networking
- Paid holidays
- Disability insurance
Quick Apply
Insider Threat Program Senior Network Engineer
Leidos —Lorton, VA
- $139,100 - $251,450 a year
- Full-time
- System design
- Bachelor's degree
- Fair chance
Senior WAN Encryption Engineer & Architect
Virginia Tech Applied Research Corporation —Arlington, VA
- $225,000 - $275,000 a year
- Full-time
- Travel
- US work authorization
- Senior level
Quick Apply
10d
Senior Technical Lead, Software Engineer (Database & Storage Network)
Freddie Mac —McLean, VA
- $161,000 - $241,000 a year
- Full-time
- 5 years
- Continuous improvement
- Fair chance
Circuit Activation Engineer - TS/SCI clearance
General Dynamics Information Technology —Arlington, VA
- $93,662 - $116,150 a year
- Full-time
- Computer Science
- System design
- Office
- Paid time off
- 401(k) matching

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network security engineer jobs near mclean, va

RMF Security Engineer - ACTIVE SECRET Required

Cornerstone Technology
Alexandria, VA

Quick Apply

Job Details

Full-time
$115,000 - $124,000 a year
10 days ago

Benefits

Health savings account
Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance
401(k) matching
Life insurance
Retirement plan

Qualifications

Security audits
Document compliance management
Risk management compliance audits
Content creation for technical audiences
Regulatory compliance evaluation
Vulnerability scanning implementation
NIST SP 800-53
Technical documentation
Security risk assessment investigation
IT system monitoring
Testing and evaluation
Secret Clearance
Security testing methodologies
Regulatory Frameworks (Architecture security)
IAT
Cybersecurity
Technical writing experience within technology
CompTIA Security+
RMF
IAT Level II
Security technology solutions implementations
Vuls
Risk management framework
Stakeholder management
IT security monitoring

Full Job Description

RMF Security Engineer

Job Title: RMF Security Engineer

Location: Hybrid – Occasional on-site at Mark Center, Alexandria, VA (less than 10% of the time, as needed)

On-site Expectations: >10% as needed when deemed necessary

Clearance Required: Active Secret Clearance (Tier 3)

Employment Type: Full-Time

Target Start Date: July 27, 2026

Overview

Cornerstone Technology Enterprises is seeking an experienced RMF Security Engineer to support our government customer at DMDC. This hybrid role requires occasional on-site presence at the Mark Center and focuses on end-to-end Risk Management Framework (RMF) support, including Authority to Operate (ATO) packages, eMASS management, and DoD cybersecurity compliance.

You will interpret risk and recommend approaches to meeting DoD compliance and cybersecurity requirements in accordance with the NIST Risk Management Framework (RMF) and DoD policy, working across the full RMF lifecycle from control mapping through continuous monitoring.

Candidates with a background in RMF security engineering, A&A, or cybersecurity compliance within DoD environments are strongly encouraged to apply. This role is classified under a contract labor category as Network and Computer Systems Administrator – Journeyman.

What You Will Do

RMF Assessment & Authorization

Map, implement, interpret, and document RMF security controls across information systems
Manage the full RMF lifecycle from categorization through continuous monitoring
Develop and submit Authorization to Operate (ATO) packages
Manage and maintain system records in the eMASS cybersecurity management tool

Risk & Compliance Management

Manage Plans of Action & Milestones (POA&M)
Develop and maintain system security documentation, including System Security Plans (SSPs), POA&Ms, and ST&Es
Conduct Security Test & Evaluations (ST&E) and create supporting system documentation
Perform risk assessments, threat assessments, and support third-party audits
Ensure compliance with NIST 800-53 standards and DoD policy

Vulnerability & Technical Assessment

Generate and interpret ACAS scans to identify system vulnerabilities
Monitor remediation efforts and mitigation strategies
Implement and evaluate manual Security Technical Implementation Guides (STIGs) using SCAP and SCAP Compliance Checker (SCC)
Plan and monitor security control implementation for the protection of networks, enclaves, and information systems

Documentation & Stakeholder Support

Partner closely with highly technical administrators to strengthen overall security measures
Communicate risk posture and compliance status clearly to technical and non-technical stakeholders
Maintain accurate documentation across A&A platforms such as eMASS, CSAM, and Xacta

Required Qualifications

Active Secret Clearance (Tier 3)
5+ years of experience in RMF / security engineering
Experience mapping, implementing, interpreting, and documenting RMF security controls
Experience managing the eMASS cybersecurity management tool
Experience developing and submitting at least six (6) ATO packages
Thorough understanding of the RMF Assessment and Authorization (A&A) process, including all phases of the RMF lifecycle
Proven experience managing POA&M, conducting ST&E, performing risk assessments, and ensuring NIST 800-53 compliance
Ability to generate and interpret ACAS scans and monitor remediation efforts
Working knowledge of manual STIGs, SCAP, and SCC
Working knowledge of A&A platforms such as eMASS, CSAM, and Xacta
CompTIA Security+ certification (or equivalent DoD 8570 IAT Level II)
Excellent communication and technical writing skills

Preferred Qualifications

Previous experience in a technical role such as a system or network administrator
Strong communication skills, with experience working closely with highly technical administrators
Background supporting DMDC or other large-scale DoD IT operations programs
Familiarity with DoD privacy and financial control requirements

Why Join Cornerstone?

Cornerstone Technology Enterprises is a veteran-owned small business with deep experience supporting federal and defense missions. Our teams operate inside production environments, supporting systems that matter, while maintaining a culture that values trust, accountability, and technical excellence.

This role offers the opportunity to work in a hybrid capacity while contributing directly to a national-level DoD cybersecurity and risk management program.

Job Type: Full-time

Pay: $115,000.00 - $124,000.00 per year

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
Health savings account
Life insurance
Paid time off
Retirement plan
Vision insurance

License/Certification:

CompTIA Security+ (Required)

Security clearance:

Secret (Required)

Ability to Commute:

Alexandria, VA 22350 (Required)

Work Location: Hybrid remote in Alexandria, VA 22350

Quick Apply

Refine Your Search

network security engineer jobs in mclean, va

RMF Security Engineer - ACTIVE SECRET Required

Network Security Engineer (Multiple Levels)

Cybersecurity Admin

Network Engineer

Network Engineer

Lead Security Application Engineer

Lead Identity Access Management (IAM) Engineer/Architect

Sr Cloud Engineer (Hybrid Cloud with GCP) - 5 days onsite Local Candidates

Network Engineer, Lead - Cisco ISE / Firepower

DevOps / Security Engineer — Cloud Platform & IoT Systems

Apple/macOS Subject Matter Expert (Computer Engineering, Senior Associate)

Mid-level Vulnerability Researcher

Principal Network Engineer (Security)

Senior Platform Engineer (OCI)

Cyber Zscaler Network Security Engineer / Senior Consultant, Strategy, Growth, and Transformation

AP107 HEASARC Scientific Cloud Platform Developer

Insider Threat Program Senior Network Engineer

Senior WAN Encryption Engineer & Architect

Senior Technical Lead, Software Engineer (Database & Storage Network)

Circuit Activation Engineer - TS/SCI clearance

I want to receive the latest job alert for network security engineer in mclean, va

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