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Incident Responder; Secret Clearance Required, Onsite

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: Relha LLC
Full Time position
Listed on 2026-01-20
Job specializations:
  • IT/Tech
    Cybersecurity
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Position: Incident Responder (Secret Clearance Required, Onsite)

Incident Responder (Secret Clearance Required, Onsite)

Our Deloitte Cyber team understands the unique challenges and opportunities businesses face in cybersecurity. Join our team to deliver powerful solutions to help our clients navigate the ever-changing threat landscape. Through powerful solutions and managed services that simplify complexity, we enable our clients to operate with resilience, grow with confidence, and proactively manage to secure success.

Work You’ll Do

Lead and execute all phases of the incident response lifecycle, including planning, identification, containment, eradication, recovery, and follow-up in alignment with client security requirements.

Analyze and triage security events and alerts from event logging systems, SIEM platforms, and PCAP data to accurately distinguish true security incidents from non-incidents and identify indicators of malicious activity or code.

Coordinate containment and eradication efforts by developing and implementing countermeasures across enterprise environments to limit impact and support rapid recovery.

Prepare clear, detailed incident reports andings that document findings, response actions, lessons learned, and recommendations for prevention and remediation.

Collaborate effectively with internal SOC teams and external stakeholders.

The Team

Deloitte’s Government and Public Services (GPS) practice – our people, ideas, technology, and outcomes—are designed for impact. Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise.

Our Cyber Defense & Resilience offering assists clients in defending against advanced threats by transforming security operations, monitoring technology, data analytics, and threat intelligence. Helps manage and protect dynamic attack surfaces and provides rapid crisis and cyber incident response, ensuring clients can be ready for, respond to, and recover from business disruptions.

Qualifications

Required:

A minimum of a bachelor’s degree.

Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.

Active Secret Clearance required

Ability to work onsite in Herndon, VA.

3+ years of experience within the following:
  • Working as a network security analyst in a security operations center and/or in handling, responding, and managing computer security incidents
  • Ability to analyze information technology security events and distinguish legitimate security incidents from non-incidents. This includes identifying malicious code or activities within computer systems and enterprise networks.
  • Must have working knowledge of various operating systems (e.g., Windows, OS X, Linux) commonly deployed in enterprise environments. A conceptual understanding of Windows Active Directory is also required.
  • Must possess working knowledge of network communications and routing protocols (e.g., TCP, UDP, ICMP, BGP, MPLS) and common internet applications and standards (e.g., SMTP, DNS, DHCP, SQL, HTTP, HTTPS).
  • Must have experience with event logging systems and be proficient in analyzing security event logs. Previous experience with SIEM platforms that perform log collection, analysis, correlation, and alerting is required.
  • Must be proficient in utilizing various Packet Capture (PCAP) applications/engines and in analyzing PCAP data.
  • Must have experience in identifying and implementing countermeasures or mitigating controls for deployment in enterprise network environments.

Information for applicants with a need for accommodation:

Recruiting tips

From developing a stand out resume to putting your best foot forward in the interview, we want you to feel prepared and confident as you explore opportunities ck out recruiting tips we know that great people make a great organization. We value our people and offer employees a broad range of benefits. Learn more about what working at Deloitte can mean for you.

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