CSOS II/Tier 2

CACI International Inc; St. Louis (MO); On-site; USD 63,000 - 130,000; Full time

Job summary

CACI International Inc is seeking a CSOS II/Tier 2 Cybersecurity Analyst to join our Cyber Security Operations Center. The role includes hands-on malware analysis, forensics, and real-time incident response in a 24x7 environment, with weekend shift hours on Saturdays and Sundays 1800-0600.

Responsibilities include leading incident response, coordinating with partners, developing IOCs, and producing detailed incident reports.

Qualifications

• Active TS/SCI clearance at start; ability to obtain a Polygraph within 6 months.
• Bachelor's degree (BA/BS) or equivalent experience.
• Minimum 3 years of related cybersecurity experience.
• DoD 8140.01 / DoD 8570.01-M compliant certifications: IAT Level II and CSSP Analyst.

Responsibilities

• Lead and support cyber incident response activities, including containment, eradication, and recovery actions such as IP/domain blocks and account disablement.
• Perform in-depth malware analysis, forensic artifact handling, and digital media analysis across host, server, and network environments.
• Coordinate investigations with internal and external partners, including Counterintelligence, Insider Threat, law enforcement, and other cybersecurity teams.
• Document all actions and findings in authorized systems to ensure clear, reproducible records of analysis and response.
• Categorize incidents, assess impact, and collaborate with stakeholders to ensure accurate and timely reporting.
• Produce incident timelines, reports, briefings, and other materials to keep leadership informed of threat activity and response actions.
• Develop indicators of compromise (IOCs) for distribution to cybersecurity stakeholders.
• Build, maintain, and - when authorized - execute custom scripts, tools, and capabilities for data collection, analysis, and response.
• Generate or update incident reports within JIMS, ICMS, and other approved systems as directed by the Government.
• Support de-confliction between blue/red team activities and active incidents.
• Provide comprehensive incident investigation reports that cover lifecycle analysis, adversary behavior, technical findings, and recommended improvements.

Skills

Active TS/SCI clearance

Polygraph within 6 months

Cybersecurity experience

Education

Bachelor's degree or equivalent experience

Tools

IAT Level II certification

CSSP Analyst certification

Job description

Job Title: CSOS II/Tier 2

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

* * *

The Opportunity

CACI is seeking a skilled CSOS II / Tier 2 Cybersecurity Analyst to join our Cyber Security Operations Center (CSOC). In this role, you will play a key part in a 24x7x365 mission to protect national security systems by identifying, containing, and responding to cybersecurity incidents. This position offers the chance to work hands-on with advanced malware analysis, digital forensics, and real-time incident response in a dynamic, highly collaborative environment.

This role operates on Shift 5 (Saturday and Sunday- Weekend 1800 - 0600).

Responsibilities

• Lead and support cyber incident response activities, including containment, eradication, and recovery actions such as IP/domain blocks and account disablement.
• Perform in-depth malware analysis, forensic artifact handling, and digital media analysis across host, server, and network environments.
• Coordinate investigations with internal and external partners, including Counterintelligence, Insider Threat, law enforcement, and other cybersecurity teams.
• Document all actions and findings in authorized systems to ensure clear, reproducible records of analysis and response.
• Categorize incidents, assess impact, and collaborate with stakeholders to ensure accurate and timely reporting.
• Produce incident timelines, reports, briefings, and other materials to keep leadership informed of threat activity and response actions.
• Develop indicators of compromise (IOCs) for distribution to cybersecurity stakeholders.
• Build, maintain, and - when authorized - execute custom scripts, tools, and capabilities for data collection, analysis, and response.
• Generate or update incident reports within JIMS, ICMS, and other approved systems as directed by the Government.
• Support de-confliction between blue/red team activities and active incidents.
• Provide comprehensive incident investigation reports that cover lifecycle analysis, adversary behavior, technical findings, and recommended improvements.

Qualifications

Required:

• Active TS/SCI clearance at start; the ability to obtain a Polygraph within 6 months is required.
• Bachelor's degree (BA/BS) or equivalent experience in lieu of a degree
• Minimum 3 years of related cybersecurity experience.
• DoD 8140.01 / DoD 8570.01-M compliant certifications: IAT Level II and CSSP Analyst certifications.

What You Can Expect

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The Proposed Salary Range For This Position Is

$63,300-$129,700

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.