Network Based Systems Analyst III at ARSIEM Corporation

Department: Systems Analyst

Setup: On-site
Location: Virginia
Type: Full-time
Level: senior
Posted: Jul 11, 2026

Description

ARSIEM Corporation is hiring a Cyber Network Defense Analyst to support a United States Government client in Arlington, Virginia. The role monitors network activity, analyzes anomalous and malicious traffic, investigates incidents, assesses network topology and device configurations, collects forensic artifacts, and recommends containment and remediation actions. The position requires an active TS/SCI clearance and DHS Entry on Duty suitability, along with substantial network investigation and computer network defense experience.

Required Skills

Network investigations
Splunk
TCP/IP
Wireshark
MITRE ATT&CK
Network topologies
Network traffic

Additional Information

Minimum Education: Bachelor of Science in Computer Science, Cyber Security, Computer Engineering, or a related field; alternatively, a high school diploma with 7–9 years of network investigations experience.
Required Previous Experiences: At least 5 years of directly relevant network investigation experience
7–9 years of network investigations experience for the high school diploma alternative
Preferred Qualifications: Network device integrity concepts and methodologies
Network analysis software proficiency, including Wireshark
PCAP data carving and extraction
Non-traditional network traffic analysis, including command and control
Evidence integrity preservation
Virtualized environments
DoD 8140.01 IAT Level II, IASAE II, CSSP Analyst, GCIA, GCIH, CSSP Analyst/CSSP Incident Responder, or CEH
SANS GIAC GNFA
Translation Company Name: ARSIEM