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CriticalSolutions, LLC

T1 Cyber Network Defense Analyst – Day Shift (w/ active TS)

CriticalSolutions, LLC, Washington, District of Columbia, us, 20022

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T1 Cyber Network Defense Analyst – Day Shift (w/ active TS) Critical Solutions, LLC is hiring a Tier 1 Cyber Network Defense Analyst (CNDA) to support our federal customer in Washington, DC.

Location: Washington, DC

Employment type: Full‑time, Hybrid

Shift schedule: Day Shift 7 am – 7 pm ET (non‑core hours may be required)

Clearance: Top Secret / SCI (active TS/SCI, must maintain an Entry‑on‑Duty clearance)

Job Description

We need an analyst who will provide security operations center (SOC) support, cyber analysis, application development, and 24x7x365 support. Responsibilities include network security monitoring and detection, proactive threat hunting, traffic inspection, log analysis, alert investigation, and documentation in SOC investigations and Security Event Notifications (SENs).

Primary Roles and Responsibilities

Utilize a SIEM for enterprise monitoring and detection

Create Security Event Notifications to document investigation findings

Investigate cyber‑security alerts with critical thinking and analysis

Analyze network traffic using enterprise tools (e.g., full PCAP, firewall, proxy, IDS logs)

Collaborate with team members on alert or threat analysis

Stay current with emerging threats

Monitor shared email box for notifications and requests

Use OSINT to aid investigations

Contribute to content‑tuning requests

Basic Qualifications

Active TS/SCI clearance, able to obtain and maintain an Entry‑on‑Duty clearance

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

Minimum 2 years professional experience in one or more of: network administration, Unix/Linux administration, software engineering, systems administration, or help‑desk/IT support

Self‑motivated, career focused in cyber security

Familiarity with SOC purpose and role

Knowledge of common network ports and protocols (TCP/UDP, HTTP, ICMP, DNS, SMTP)

Understanding of network topologies and security device functions (firewall, IDS/IPS, proxy, DNS)

Experience with packet‑analysis tools (e.g., Wireshark)

Critical‑thinking and analysis for alert investigation

Familiarity with malware and attack vectors

Knowledge of Windows OS and standard logging

Experience with AV, DLP, and host‑based firewalls

At least one listed certification: A+ CE, CCNA‑Security, CND, Network+ CE, SSCP, Security+, CySA+

Preferred Qualifications

Experience with SOC methodologies and processes

Experience with scripting languages (Python, PowerShell, JavaScript, VBS)

Shift Schedule Details

Day Shift Front: 7 am – 7 pm ET (Sunday–Tuesday, every other Wednesday)

Day Shift Back: 7 am – 7 pm ET (Thursday–Saturday, every other Wednesday)

May require non‑core hours

Location Requirements

Hybrid role with frequent client‑site presence

Willingness to commute to Washington, DC

Clearance Requirement Must possess an active DoD Top Secret Clearance. Selected candidates will undergo background investigation and fingerprinting by the federal agency and must pass the investigation to qualify for the position. U.S. citizenship required.

Pay and Benefits Salary range: $58,000 – $74,000, based on responsibilities, experience, and certifications.

Benefits include 100 % premium coverage for medical, dental, vision, and life insurance; supplemental insurance; 401(k) matching; flexible PTO/holidays; higher‑education/training reimbursement and more.

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