Incident Manager III

Company: ARSIEM
Location: Arlington
Posted on: February 17, 2026

Job Description:

Job Description 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 Case Manager . This position will support one of our Government clients in Arlington, VA. Responsibilities Correlating 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 determining scope, urgency, and potential impact Researching and compiling known resolution steps or workarounds to enable mitigation of potential Computer Network Defense incidents within the enterprise Applying cybersecurity concepts to the detection and defense of intrusions into small and large-scale IT networks, and conducting a cursory analysis of log data Monitoring external data sources to maintain the currency of Computer Network Defense threat conditions and determine which security issues may have an impact on the enterprise Identifying the cause of an incident and recognizing the key elements to ask external entities when learning the background and potential infection vector of an incident, Receiving and analyzing network alerts from various sources within the enterprise, and determining possible causes of such alerts Tracking and documenting Computer Network Defense (CND) incidents from initial detection through final resolution, and working with other components within the organization to obtain and coordinate information pertaining to ongoing incidents Providing support during assigned shifts (Monday through Friday, normal business hours) Minimum Qualifications BS in Incident Management, Operations Management, Cybersecurity, or related degree. HS Diploma with 7-9 incident management or cyber security experience 5 years of directly relevant experience in cyber incident management or cybersecurity operations Knowledge of incident response and handling methodologies Having close familiarity with NIST 800-62 (latest revision) and FISMA standards as they pertain to reporting incidents. Knowledge of the NCCIC National Cyber Incident Scoring System to be able to prioritize triaging of incidents Knowledge of general attack stages (e.g., foot printing and scanning, enumeration, gaining access, escalation of privileges, maintaining access, network exploitation, covering tracks, etc.) Skill in recognizing and categorizing types of vulnerabilities and associated attacks Knowledge of basic system administration and operating system hardening techniques, Computer Network Defense policies, procedures, and regulations Knowledge of different operational threat environments (e.g., first generation [script kiddies], second generation [non-nation-state sponsored], and third generation [nation-state sponsored]) Knowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, PL/SQL and injections, race conditions, covert channel, replay, return-oriented attacks, and malicious code) Preferred Qualifications Knowledge of different operational threat environments (e.g., first generation [script kiddies], second generation [non-nation-state sponsored], and third generation [nation-state sponsored]) Knowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, PL/SQL and injections, race conditions, covert channel, replay, return-oriented attacks, and malicious code) GCIH, GCFA, GISP, GCED, CCFP, or CISSP Clearance Requirement : This position requires an active TS/SCI with a polygraph. You must be a U.S. citizen for consideration. 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.

Keywords: ARSIEM, Frederick , Incident Manager III, IT / Software / Systems , Arlington, Maryland