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Jobs in Arlington, United States
27 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
1–20 of 27 jobs
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Network Based Systems Analyst II
11 days agoARSIEM · Arlington, Virginia, United States +1
On-siteFull-timeMid levelCharacterize 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 event's history, status, and potential…
Lab Manager I
11 days agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeEntry levelScience & researchServe as the first level Help Desk for the TEN Lab’s systems and accounts; Assist new user setup of equipment, accounts and tools; Respond to user requests via email, walk-ins, phone calls or other communication means in a timely manner; Create and maintain accurate Tickets for…
Technical Writer & Editor III
2 weeks agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorDeveloping and reviewing technical communications deliverables including cybersecurity documentation, operational procedures, plans, action reports, and meeting minutes, coordinating with Incident Management teams to obtain necessary input data.; Preparing, reviewing, editing,…
Subject Matter Expert II
3 weeks agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeLead / staffConduct comprehensive hardware reverse engineering of OT and ICS devices; Analyze network-edge devices and embedded systems compromised by advanced threats; Perform deep-dive analysis of proprietary hardware targeted by adversaries; Conduct reverse engineering, failure…
Incident Manager III
3 weeks agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorConduct advanced triage and analysis of complex, high-severity cyber threat intelligence and IOC packages; Serve as technical escalation point for challenging or ambiguous threat assessments requiring deep expertise; Perform sophisticated IOC enrichment using classified and…
Incident Manager I
3 weeks agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeEntry levelCorrelating incident data to identify specific trends in reported incidents; Recommending defense in depth principles and practices (i.e. Defense in Multiple Places, layered defenses, security robustness, etc.); Performing Computer Network Defense incident triage to include…
Systems Engineer III
4 weeks agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorEngineeringLead use case identification and prioritization activities with mission stakeholders; Gather and document requirements for technology integration pilots; Facilitate stakeholder workshops and coordination meetings; Translate mission pain points into technology capability…
Incident Manager II
4 weeks agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeMid levelPerform initial triage and assessment of incoming cyber threat tickets, incident reports, and IOC submissions; Analyze technical data including IP addresses, domain names, file hashes, network traffic patterns, and malware artifacts; Determine threat severity, credibility, and…
Lab Manager III
2 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorScience & researchApply advanced analytical skills and technical resources at the tactical levels and implement infrastructure solutions supporting command decision making and execution of mission requirements.; Perform large scale configuration management and deployment across Windows, MacOS,…
Applications Developer III
3 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorEngineeringDevelop automated data pipelines for technology integration initiatives; Create automation workflows for malware sample collection, detonation, and taxonomy; Implement data integration automation between pilot and production systems; Support Automated Malware Analysis (AMA)…
Network Based Systems Analyst III
3 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorAssists the Government lead in coordinating teams in preliminary incident response investigations; Assists the Government lead with interfacing with the customer while on site; Determines appropriate courses of actions in response to identified and analyses anomalous network…
Applications Developer II
4 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeMid levelEngineeringDesign, troubleshoot, and implement software code for end-to-end software development and service integrations; Designs, develops, enhances, debugs, integrates, and implements software stacks for on premise and cloud based tools and services; Troubleshoots production problems…
Applications Developer III
4 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorEngineeringDesigns, troubleshoots, and implements software code for end-to-end software development; Designs, develops, enhances, debugs, integrates, and implements software; Troubleshoots production problems related to software applications; Researches, tests, builds, and coordinates the…
Host Based Systems Analyst II
10 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeMid levelHospitality & retailThe Computer Network Defense Analyst uses information collected from a variety of sources 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…
Incident Manager III
11 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorProactively gather, analyze, and disseminate timely and accurate CTI to support operational decision-making; Identify emerging cyber threats, vulnerabilities, trends, and recommend countermeasures; Collaborate with internal and external stakeholders to mitigate cyber threats;…
Host Based Systems Analyst III
12 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorHospitality & retailAssisting Federal leads with overseeing and leading forensic teams at onsite engagements by coordinating data collection/acquisition operations; Providing technical assistance on data collection techniques and forensic investigative techniques to appropriate personnel when…
Incident Manager III
12 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorCorrelating incident data to identify specific trends in reported incidents; Recommending defense in depth principles and practices (i.e. Defense in Multiple Places, layered defenses, security robustness, etc.); Performing Computer Network Defense incident triage to include…
Lab Manager III
12 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorScience & researchApplying advanced analytical skills and technical resources at the tactical levels and implementing infrastructure solutions supporting command decision making and execution of mission requirements; Support the implementation of new technologies and equipment in the lab…
Lab Manager III
12 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorScience & researchLeverage advanced analytical and technical skills to design and implement infrastructure solutions that enhance mission execution and support command decision-making.; Support the integration of new technologies and equipment within lab environments, including the development…
Lab Manager III
12 months agoARSIEM · Arlington, Virginia, United States
On-siteFull-timeSeniorScience & researchServe as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux (RHEL) environments across development, lab, and production systems.; Perform large-scale configuration management and deployment across Windows, macOS, Linux/Unix, and other operating systems and…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.