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60 Arsiem Incident Response Analyst Jobs Hiring Near You

ARSIEM

Network Based Systems Analyst II

Arlington, VA · On-site

ARSIEM has an experienced workforce of qualified professionals committed to providing the best ... Assists the government lead in coordinating teams in preliminary incident response investigations

ARSIEM

Network Based Systems Analyst III

Arlington, VA · On-site

ARSIEM has an experienced workforce of qualified professionals committed to providing the best ... cyber incident response plan * Approximately 25% of the CNDA's time will be spent executing the ...

ARSIEM

Host Based Systems Analyst IV

Arlington, VA · On-site

ARSIEM has an experienced workforce of qualified professionals committed to providing the best ... Tracking and documenting on-site incident response activities and providing updates to leadership ...

ARSIEM

Host Based Systems Analyst IV

Arlington, VA · On-site

ARSIEM has an experienced workforce of qualified professionals committed to providing the best ... Tracking and documenting on-site incident response activities and providing updates to leadership ...

ARSIEM

Host Based Systems Analyst IV

Arlington, VA · On-site

ARSIEM has an experienced workforce of qualified professionals committed to providing the best ... Tracking and documenting on-site incident response activities and providing updates to leadership ...

ARSIEM

Host Based Systems Analyst III

Arlington, VA · Hybrid

ARSIEM has an experienced workforce of qualified professionals committed to providing the best ... incident response playbooks and procedures for cloud and hybrid environments. * Support cloud ...

ARSIEM

Technical Writer & Editor III

Arlington, VA · On-site

ARSIEM is looking for a Technical Writer to provide support for onsite incident response to ... Ability to work with technical cyber analysts to evaluate material and break it down into concise ...

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What are the key skills and qualifications needed to thrive as an Incident Response Analyst, and why are they important?

To thrive as an Incident Response Analyst, you need a solid understanding of cybersecurity principles, threat analysis, and incident handling, often supported by a degree in information security or related fields. Familiarity with security information and event management (SIEM) tools, forensic software, and certifications like GIAC or CISSP is typically required. Strong analytical thinking, attention to detail, and effective communication are crucial soft skills for coordinating response efforts and reporting findings. These skills ensure rapid detection, containment, and resolution of security incidents, protecting organizational assets and reputation.

What types of incidents does an Incident Response Analyst typically handle, and how do they prioritize them?

Incident Response Analysts commonly handle a variety of security incidents, including malware infections, phishing attacks, unauthorized access attempts, and data breaches. They prioritize incidents based on factors such as potential business impact, severity, and the sensitivity of affected data. Analysts often use established frameworks and playbooks to assess and triage incidents, ensuring the most critical threats are addressed first. Collaboration with IT, security teams, and sometimes legal or compliance departments is key to effective resolution and minimizing risk.

What does an Incident Response Analyst do?

An Incident Response Analyst is responsible for identifying, investigating, and responding to cybersecurity incidents within an organization. They monitor networks and systems for security breaches, analyze potential threats, and take action to contain and mitigate any attacks. In addition, they document findings, coordinate with other IT and security teams, and help improve the organization's overall security posture by recommending preventative measures. Their role is critical in minimizing damage from cyber incidents and ensuring business continuity.

What is the difference between Incident Response Analyst vs Security Analyst?

AspectIncident Response AnalystSecurity Analyst
CertificationsCompTIA Security+, GIAC certifications, CISSP (preferred)CompTIA Security+, CISSP, CEH (sometimes)
Work EnvironmentPrimarily in cybersecurity teams, focused on incident handling and responseBroader security operations, including monitoring, analysis, and policy enforcement
Employer & Industry UsageTech companies, government agencies, cybersecurity firmsFinancial institutions, healthcare, government, and corporate sectors

Incident Response Analysts specialize in identifying, managing, and mitigating cybersecurity incidents, while Security Analysts have a broader role in monitoring security systems, analyzing threats, and implementing security measures. Both roles require similar certifications and often work within the same organizations, but Incident Response Analysts focus more on reactive incident handling, whereas Security Analysts cover proactive security measures.

What other companies are hiring for Incident Response Analyst jobs?
What are the most popular jobs at Arsiem?
What are the most popular categories at Arsiem?
Infographic showing various Incident Response Analyst job openings at Arsiem in the United States as of May 2026, with employment types broken down into 2% Internship, 96% Full Time, and 2% Part Time. Highlights an 98% Physical, and 2% Remote job distribution.
Host Based Systems Analyst II

Host Based Systems Analyst II

ARSIEM Corporation

Arlington, VA • On-site

Other

This job post has expired today. Applications are no longer accepted.

Job 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 provide front line response for digital forensics/incident response (DFIR) and proactively hunting for malicious cyber activity. This position will support one of our Government clients in Arlington, VA.
Responsibilities
  • The 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 network, in order to protect information, information systems, and networks from threats. CNDAs review data collected to analyze cyber events, and the network environment, to find trends, patterns or anomaly correlations that indicate more serious attacks or future threats. The CNDAs will recommend proactive measures to contain the incident. These proactive measurers include, but are not limited to, identification of intruder local changes/suspect interactions, isolation, in-depth digital media analysis, consultation with law enforcement or counterintelligence organizations, development of signatures to detect this malicious behavior and development and deployment of eradication tools.
  • The majority of the CNDA's time (75%) will be spent executing the following tasks:
    • 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 event's history, status, and potential impact for further action) that may cause ongoing and immediate impact to 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 possible 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 system and information
    • Determine tactics, techniques, and procedures (TTPs) for intrusion sets
    • Examine network topologies to understand data flows through the network
    • Identify and analyze anomalies in network traffic using metadata
    • Conduct research, analysis, and correlation across a wide variety of all source data sets (indications and warnings)
    • 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 off network traffic
    • Identify network mapping and operating system (OS) fingerprinting activities
    • Assist in the construction of signatures which can be implemented on cyber defense network tools in response to new or observed threats within the network environment or enclave
    • Notify designated managers, cyber incident responders, and cybersecurity service provider team members of suspected cyber incidents and articulate the event's history, status, and potential impact for further action in accordance with the organization's cyber incident response plan
  • Approximately 25% of the CNDA's time will be spent executing the following tasks:
    • Prepare and update manuals, instructions, and operating procedures
    • Evaluate established methods and procedures and prepare recommendations for changes in methods and practices where appropriate
    • Plan and carry out difficult and complex assignments and develop new methods, approaches, and procedures
    • Conduct analyses and recommend resolution of complex issues affecting the specialty area
    • Ensure optimal use of commercially available products
    • Prepare and present reports
    • Evaluate the effectiveness of installed systems and services
Minimum Qualifications
  • BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 7-9 years of network investigations experience.
  • 5+ years of direct relevant experience in cyber defense analysis using leading edge technologies and industry standard cyber defense tools
  • Experience 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
  • GSEC (SANS401), Arcsight (or other SEIM solution), Network+, Security+ and Python programming experience would be ideal.
  • Strong math and science background.
  • Experience with Carnegie Mellon SiLK tool suite.
  • One or more of the following professional certifications: GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTE

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.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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