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Nessus Engineer Jobs

3 jobs found

8d ago

Junior Penetration Tester - Cyber Engineer

CACI Aberdeen, MD

Aberdeen, MD

8d ago

$76k - $156k/yr Full time Bash Burp Suite Cybersecurity Tools

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Job Description

At CACI, a Junior Penetration Tester - Cyber Engineer will join an on-site team at Aberdeen Proving Ground, MD, applying penetration testing and threat-hunting to assess sophisticated systems. The role requires an active Secret clearance and sits within a collaborative engineering environment focused on mission-critical work.

Responsibilities

Join a diverse, high-performing engineering team united by solving real-world problems.
As a junior penetration tester, work hands-on with cutting-edge technology and the latest electronics.
Conduct in-depth assessments and analyses of complex systems using penetration testing and threat-hunting techniques.

Requirements

Active Secret Clearance with potential to obtain TS/SCI
Bachelor's degree in a related field and 3 years of relevant experience
Foundational understanding of Linux operating systems and commands
Knowledge of cybersecurity concepts such as the CIA triad, common cyber threats, and cyber defense mechanisms
Strong grasp of networking, TCP/IP, virtualization, containerization, and web services
Familiarity with OWASP Top 10, DoD, NSA, or industry-standard Vulnerability and Penetration Testing Standards
Working knowledge of popular penetration testing tools such as nmap, Wireshark, Burp Suite, Nessus, and similar utilities
1-2 years of exploitation experience

Technologies

nmap
Wireshark
Burp Suite
Nessus
Bash
Python
Perl
Ruby
Linux
Android

Benefits

Healthcare
Wellness programs
Financial benefits
Retirement benefits
Family support
Continuing education
Time off benefits
Flexible time off
Learning resources

What You Can Expect

A culture of integrity guides all work at CACI. Character and innovation are central to daily operations, and you will be part of a high-performing team dedicated to our customers' missions and the safety of our nation.

An environment of trust is fostered by valuing the unique contributions of every employee. You will have autonomy through a flexible time off benefit and access to robust learning resources to support your goals.

A focus on continuous growth accompanies opportunities to advance national missions, build on a long history of success, and push boundaries in your career and the organization’s legacy.

Pay Range

USD 76,000 - 155,700 per year

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8d ago

Penetration Tester - Cyber Engineer

CACI Aberdeen, MD

Aberdeen, MD

8d ago

$90k - $190k/yr Full time Application Security Cybersecurity Tools Information Security

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Job Description

Join a mission-driven team at CACI for an on-site role in Aberdeen Proving Ground, MD. You will work on sophisticated systems performing penetration testing and threat hunting, while collaborating with a diverse group of engineers who share a dedication to solving real-world problems. The organization emphasizes integrity, trust, and continuous growth, and offers a benefits package designed to support your health, finances, and professional development.

Benefits

Healthcare
Wellness
Financial
Retirement
Family support
Continuing education
Time off benefits

The Opportunity

This position is 100% on-site in Aberdeen Proving Ground, MD.

What You Can Expect

A culture of integrity.
An environment of trust.
A focus on continuous growth.

Responsibilities

Join an exceptional, diverse team of engineers united by a drive to solve real-world problems.
As a junior penetration tester, work hands-on with cutting-edge technologies and the latest electronics.
Perform in-depth assessments and analyses of sophisticated systems using penetration testing and threat-hunting techniques.

Requirements

Active Secret Clearance with the potential to obtain TS/SCI.
Bachelor's degree in a related field and 5 years of relevant experience.
Professional experience in penetration testing or threat hunting.
Proven ability in grey and black box penetration testing.
In-depth understanding of OWASP Top 10, DoD, NSA, or industry-standard Vulnerability and Penetration Testing Standards.
Proficiency with penetration testing tools such as nmap, Wireshark, Burp Suite, Nessus, and similar utilities.
Extensive knowledge of Linux operating systems.
Expertise in exploitation techniques including buffer overflows, fuzzing, SQL injection, Man-in-the-Middle attacks, covert channels, secure tunneling, XSS, privilege escalation, and lateral movement.
Strong grasp of networking, TCP/IP, virtualization, and web services.
Familiarity interfacing with electronic hardware, including taking apart devices and identifying hardware components.
Minimum of 2-3 years of exploitation experience.

Technologies

nmap
Wireshark
Burp Suite
Nessus
Linux
Bash
Python
Perl
Ruby
Android

Pay Range

Salary range: $90,300 - $189,600 per year.

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1mo ago

Cybersecurity Engineer III

The Bison Group LLC Colorado Springs, CO

Colorado Springs, CO

1mo ago Closed

$160k - $180k/yr Full time Cyber Forensics Cybersecurity Tools Elsa

This position is no longer accepting applications (closed Jul 15, 2026).

Job Description

Location

Colorado Springs, CO (onsite)

Compensation

USD 160,000 - 180,000 per year

Requirements

Bachelor's degree from an accredited institution in a related field; an additional 4 years of relevant experience may substitute for a degree
Minimum six (6) years of relevant experience in addition to education level
Must possess current DoD 8570 IAT II or IAM II certification
Experience working in a DoD or Intelligence Community environment desired
Current active TS/SCI clearance, with the ability to obtain and maintain a CI polygraph

Technologies

Tenable Nessus
Zeek
ELSA
Splunk

Responsibilities

Perform security engineering
Develop security architecture artifacts
Oversee penetration testing and security exercises
Perform computer OS forensic analysis
Support network security
Automate security compliance for systems
Engineer security into system design documentation
Perform cyber hunt activities
Configure SIEM and Splunk tools
Engineer systems and solutions to include software, hardware, and communications with a security emphasis
Provide for present and future cross-functional requirements and interfaces
Identify, assess, and present options for meeting functional and technical requirements, including hardware and software updates or upgrades
Deploy and operate cybersecurity tools
Lead performance of penetration testing and security exercises
Secure network systems
Participate in vulnerability scans using Tenable Nessus
Utilize tools such as Zeek and ELSA for network security monitoring
Implement solutions to automate security compliance of systems
Collect security analytic measures
Oversee security incident detection activities
Develop high level system design diagrams
Ensure the operating environment is security compliant
Evaluate IT enclave systems and assess risk posture
Assess system security findings and recommend mitigation
Evaluate analytical and systematic problems of workflows, organization and planning
Develop appropriate corrective action

Benefits

Healthcare
Wellness
Financial
Retirement
Family support
Time off benefits

Equal Opportunity

Bison Group is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by applicable law.

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Nessus Engineer Jobs

Junior Penetration Tester - Cyber Engineer

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