Home › Companies › Arsiem › Network Based Systems Analyst II
Network Based Systems Analyst II
Arsiem · Arlington, VA · On Site · Active · Lever
Job facts
| Field | Value |
|---|---|
| Company | Arsiem |
| Title | Network Based Systems Analyst II |
| Normalized title | - |
| Department / team | Systems Analyst / 0008-0003 |
| Location | Arlington, VA, United States |
| Work model | On Site |
| Employment type | Full Time |
| Salary | - |
| Status | active |
| ATS provider | Lever |
| Posted / first seen | 2025-10-24 / 2026-05-29 |
| Changed / last seen | 2026-05-29 / 2026-06-18 |
Related slices
| Page | What it contains | Open |
|---|---|---|
| Company jobs | Active postings from Arsiem. | Open |
| Company breakdowns | Role, location, ATS, and work model facets for this company. | Open |
| ATS provider jobs | Active postings observed through Lever. | Open |
| Provider filtered search | The same provider as a filtered job collection. | Open |
| City jobs | Active postings in Arlington. | Open |
| Department jobs | Active postings in Systems Analyst. | Open |
| Work model jobs | Active On Site postings. | Open |
| Lifecycle events | Open, update, close, and reopen events for this posting. | Open |
| Original posting | Canonical source or apply URL captured from the ATS. | Open |
Linked records
| Company | Arsiem |
| Source | 017268e1-454e-4c3f-b641-8da3ae7efde3 |
| ATS provider | Lever |
Description
About ARSIEM Corporation
At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has an experienced workforce of qualified professionals committed to providing the best possible support.
As demand increases, ARSIEM continues to provide reliable and cutting-edge technical solutions at the best value to our clients. That means a career packed with opportunities to grow and the ability to have an impact on every client you work with.
ARSIEM is looking for a Cyber Network Defense Analyst (CNDA) to monitor network activity and analyze it for evidence of suspicious behavior. Monitoring and analysis are performed to identify and report events that occur, or might occur, within the network, in order to protect information, information systems, and networks from threats. This position will support one of our Government clients in Arlington, VA.
Clearance Requirement: This position requires an Active TS/SCI clearance and the ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability.
Candidate Referral: Do you know someone who would be GREAT at this role? If you do, ARSIEM has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully placed on one of our projects. The bonus for this position is $3,500, and the referrer is eligible to receive the sum for any applicant we place within 12 months of referral. The bonus is paid after the referred employee reaches 6 months of employment.
ARSIEM is proud to be an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class.
Responsibilities
Characterize and analyze network traffic to identify anomalous activity and potential threats to network resources.
Coordinate with enterprise-wide cyber defense staff to validate network alerts.
Document and escalate incidents (including the event's history, status, and potential impact for further action) that may cause ongoing and immediate impact on the environment
Perform cyber defense trend analysis and reporting
Perform event correlation using information gathered from a variety of sources within the enterprise to gain situational awareness and determine the effectiveness of an observed attack
Provide daily summary reports of network events and activity relevant to cyber defense practices
Receive and analyze network alerts from various sources within the enterprise and determine possible causes of alerts
Provide timely detection, identification, and alerting of attacks/intrusions, anomalous activities, and misuse activities, and distinguish these incidents and events from benign activities
Use cyber defense tools for continual monitoring and analysis of system activity to identify malicious activity
Analyze identified malicious activity to determine weaknesses exploited, exploitation methods, effects on the system, and information
Identify and analyze anomalies in network traffic using metadata
Validate intrusion detection system (IDS) alerts against network traffic using packet analysis tools
Identify applications and operating systems of a network device based on network traffic
Reconstruct a malicious attack or activity based on network traffic
Identify network mapping and operating system (OS) fingerprinting activities
Assist in the construction of signatures that can be implemented on cyber defense network tools in response to new or observed threats within the network environment or enclave
Minimum Qualifications
BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 4+ years of network investigations experience.
2+ years of direct relevant experience in cyber defense analysis using leading-edge technologies and industry-standard cyber defense tools
Experience in successfully developing and deploying signatures
Experience detecting host and network-based intrusions via intrusion detection technologies (e.g., Snort)
Experience implementing incident handling methodologies
Experience implementing protocol analyzers
Experience collecting data from a variety of cyber defense resources
Experience reading and interpreting signatures (e.g., Snort)
Experience performing packet-level analysis
Experience conducting trend analysis
Preferred Qualifications
Python programming experience
Strong math and science background
Experience with the Carnegie Mellon SiLK tool suite
Desired Certifications:
One or more of the following professional certifications: GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTE
GSEC (SANS401), Arcsight (or other SEIM solution), Network+, Security+
Full job record
| Job ID | 03578e999b5f5e07a863685dde0d5d069f857814 |
| Org ID | 2db0e30f-960e-49a1-a9b4-49ffbe613325 |
| Source ID | 017268e1-454e-4c3f-b641-8da3ae7efde3 |
| Board ID | 017268e1-454e-4c3f-b641-8da3ae7efde3 |
| Provider | lever |
| Provider Job Key | 910eeb85-3ab0-469a-bfcb-a8bed71ae793 |
| Title | Network Based Systems Analyst II |
| Normalized Title | — |
| Status | active |
| Active | yes |
| Location Text | Arlington, VA |
| Department | Systems Analyst |
| Team | 0008-0003 |
| Employment Type | Full-time |
| Workplace Type | on_site |
| Remote Policy | — |
| Country | United States |
| Region | VA |
| City | Arlington |
| Salary Raw | — |
| Salary Min | — |
| Salary Max | — |
| Salary Currency | — |
| Salary Period | — |
| Source URL | https://jobs.lever.co/arsiem/910eeb85-3ab0-469a-bfcb-a8bed71ae793 |
| Apply URL | https://jobs.lever.co/arsiem/910eeb85-3ab0-469a-bfcb-a8bed71ae793/apply |
| First Seen At | 2026-05-29 07:08:33Z |
| Last Seen At | 2026-06-18 07:55:00Z |
| Last Checked At | 2026-06-18 07:55:00Z |
| Last Changed At | 2026-05-29 07:08:33Z |
| Inactive At | — |
| Source Posted At | 2025-10-24 01:37:46Z |
| Source Updated At | — |
| Raw Payload Uri | s3://job-postings-prod-raw-590183727216/raw/provider=lever/board=arsiem/date=2026-06-18/2026-06-18T07-54-57-803Z-3136a3f2c4b7ca17c192670c1336f66c9edc2069106904101e52cd34d90a74d1.json |
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