ForeScout Engineer - Active TS/SCI With CI Poly

ENS Solutions, LLC; Reston (VA); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Medical coverage

401k contribution

Paid time off + holidays

Disability insurance

Life insurance

Education & certification support

Relocation assistance

Job summary

ENS Solutions, LLC specializes in cyber security for DoD and IC clients, delivering evaluation, implementation, and operation of next‑gen security tools. You will lead a team applying network engineering, Active Directory, and system administration to protect sensitive networks.

The role offers mentoring, hands‑on problem solving, and opportunities to grow with a team focused on robust defense solutions for national security customers.

Qualifications

• 3+ years of Windows/Linux systems administration with basic troubleshooting.
• Experience deploying or maintaining ForeScout CounterACT appliances.
• Network engineering experience including switches, VLANs, and AD.
• Knowledge of multi-domain architectures (data center, WAN, LAN).
• DoD 8570 IAT Level III or higher certification within 30 days of start.

Responsibilities

• Lead a team engineering security solutions for government and commercial clients.
• Communicate security concepts clearly to senior management and stakeholders.
• Manage infrastructure, enhanced detection, vulnerability handling, and event correlation.
• Contribute to risk assessments using analytics to identify threats.

Skills

Systems administration

Security clearance

Multi-domain architectures

DoD 8570 certification

Communication skills

Education

HS diploma/GED + 7+ years IT

Associate’s degree + 5+ years

Bachelor’s degree + 3+ years

Master’s degree + 1+ years

Tools

ForeScout CounterACT

Active Directory

Splunk

Job description

On our expert team, you’ll perform work focused on implementing and operating next generation security solutions for government and commercial clients. You’ll perform hands‑on evaluation, implementation, and operation of leading security cyber defense tools and technologies, and apply in‑depth defense strategies to large and complex networks to rapidly identify vulnerabilities and threats, prioritize response actions, and develop effective countermeasures. You’ll apply thought leadership in a highly collaborative and innovative work environment to solve complex security challenges. You will lead a team as they engineer solutions to complex challenges for customers using knowledge network engineering, Active Directory, and system administration.

In this role, you'll closely impact mission success, protecting data and networks from malicious payloads and actors. With mentoring, challenging hands‑on problem‑solving, and opportunities to learn new tools and skills, we focus on growing as a team to make the best solutions for our customers. Work with us as we secure and protect our nation's most sensitive capabilities.

What You’ll Work On

• Develop relationships quickly and easily with other teams, communicating the complexities of security with a wide variety of audiences, including senior management.
• Manage infrastructure and cybersecurity controls, including enhanced detection and vulnerability capabilities and improved event correlation in large enterprises.
• Contribute to risk and vulnerability assessments in network, system, and application areas, and leverage big data analytics and traditional security event types to identify advanced threats or indicators of compromise.

Requirements

• 3+ years of experience performing systems administration for Windows or Linux, including performing basic troubleshooting and installation or configuration, monitoring system performance or availability, and performing security upgrades
• Experience with the deployment or daily maintenance of ForeScout CounterACT appliances
• Experience with network engineering, including physical or logical such as installation and activation of ports, configuration of switches, and LANS, VLANS, and network FW, or appliances or network administration services such as Active Directory, Guests LANS, and domain management
• Knowledge of multi-domain architectures, including data center, WAN, and LAN in virtualized architectures
• TS/SCI clearance with the ability to obtain a counter-intelligence polygraph.
• HS diploma or GED and 7+ years of experience with supporting IT projects and activities, Associate’s degree and 5+ years of experience supporting IT projects and activities, Bachelor’s degree and 3+ years of experience supporting IT projects and activities, or Master’s degree and 1+ years of experience supporting IT projects and activities.
• A DoD 8570 IAT Level III Certification such as SecurityX (formerly CASP+), CCNP Security, CISA, CISSP (or Associate), GCED, GCIH, CCSP certification within 30 days of start date
• Ability to obtain a DoD 8570 Cybersecurity Service Provider - Infrastructure Support Certification (CSSP-IS), including CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND Certification, prior to start date on the contract.

Additional Qualifications

• ForeScout Certified Administrator (FSCA) and/or ForeScout Certified Engineer (FSCE) certifications
• Knowledge of federal information security policies, standards, procedures, directives, frameworks, federal security authorizations, assessment, and risk management processes for enterprise systems
• Ability to install and deploy ForeScout in a multidomain customer environment
• Ability to integrate cybersecurity data using enterprise or custom tools data aggregation and analysis tools, including Splunk
• Ability to provide support in a Tier II IT operations and maintenance role, including ticket work information updates, issue responses, and remediation
• Ability to be a self-starter, work without considerable direction, and work with a team
• Possession of excellent verbal and written communication skills, including for coordinating efforts and establishing customer relations

Benefits

Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly regarded IT consulting and management firm. ENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. Our strong technical and management experts have been able to maintain a standard of excellence in their relationships while delivering innovative, scalable and collaborative infrastructure to our clients.

Why ENS?

• Free Platinum-Level Medical/Dental/Vision coverage, 100% paid for by ENS
• 401k Contribution from Day 1
• PTO + 11 Paid Federal Holidays
• Long & Short Term Disability Insurance
• Group Term Life Insurance
• Tuition, Certification & Professional Development Assistance
• Workers’ Compensation
• Relocation Assistance

Candidate AI Usage Policy

AI tools are an important part of daily work at ENS Solutions, and we are committed to their responsible and ethical use. To ensure a fair and equitable candidate evaluation based on individual skills, knowledge, and experience, candidates are not permitted to use artificial intelligence or other assistive tools during interviews, whether in person or virtual, unless explicit permission has been granted in advance.