Live In Mainframe Security Engineer Jobs in Washington

Job Title: Security Engineer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Local
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The Opportunity:
CACI enhances the ability of federal government customers to preserve national security, deliver justice and serve the public with advanced technologies and quality analysis. We work closely with agencies and industry to overcome technical and cultural hurdles to innovation, empowering them with the latest end-to-end cloud infrastructure, big data and cyber capabilities. Our expertise in cross-domain and boundary solutions, network analytics, DevOps and low-to-high development is unique in our industry. We develop and deliver innovative products and applications that are deployed in highly sensitive customer environments and have broad applications for federal missions
Responsibilities:
We are looking for a proactive and experienced Technical Security Engineer to join our cybersecurity team. As a security engineer, you will play a critical role in designing, implementing, and maintaining security solutions that protect our organization's data, networks, and systems. You will collaborate with cross-functional teams to identify vulnerabilities, ensure compliance with security policies, and respond to incidents. The ideal candidate will have a strong background in system security, threat detection, and network defense, with hands-on experience in implementing security best practices.
• Implement and manage security technologies including firewalls, intrusion detection/prevention systems (IDS/IPS), endpoint protection, and security information and event management (SIEM) tools.
• Conduct vulnerability assessments, penetration testing, and regular security audits to identify risks and develop mitigation strategies.
• Monitor and respond to security incidents and alerts, performing root cause analysis and incident handling. • Collaborate with development, IT, and operations teams to integrate security best practices across infrastructure and applications.
• Assist in the creation and maintenance of security policies, standards, and procedures, ensuring compliance with industry standards (e.g., NIST, ISO 27001).
• Manage identity and access management (IAM) solutions to enforce least privilege and role-based access controls (RBAC).
• Implement and manage encryption solutions to secure sensitive data at rest and in transit. • Conduct threat modeling and risk assessments to improve the security posture of systems and applications. • Assist in the development of automated security workflows using scripting (Python, Bash, or similar).
• Keep up with the latest cybersecurity trends, threat landscapes, and vulnerabilities to ensure proactive measures are taken. • Participate in incident response and disaster recovery planning, testing, and documentation.
Qualifications:
Required:
1. Three (3) years of experience in Infrastructure Engineering and a Bachelor's Degree from an accredited college or university in Computer Science or a related discipline, or a Master's Degree with one (1) year experience, or a Ph.D with zero (0) years experience. In lieu of a Bachelors' degree an additional four (4) years experience is required for a total of seven (7) years.1-2 years of experience in Python development, including hands-on coding projects
2. Proficiency in Linux operating system, network security, including firewalls, VPNs, IDS/IPS, and monitoring tools.
3. Hands-on experience with SIEM platforms such as Splunk, QRadar, or similar.
4. Knowledge of security frameworks and standards (e.g., NIST, CIS, ISO 27001) and their application.
5. Experience with vulnerability management tools (Nessus, OpenVAS, Qualys) and penetration testing tools (Kali Linux, Metasploit).
6. Understanding of encryption technologies, identity management, and access controls.
7. Familiarity with cloud security best practices for AWS, Azure, or GCP environments.
8. Strong scripting skills (e.g., Python, PowerShell, Bash) to automate security tasks.
9. Experience responding to security incidents and performing investigations.
10. DOD 8570 IAT 2 or higher cert.
Desired:
1. Industry certifications such as CISSP, CISM, CEH, or OSCP.
2. Experience with DevSecOps practices and security in CI/CD pipelines.
3. Familiarity with Zero Trust architecture and implementation.
4. Experience in forensics and malware analysis.
5. Knowledge of container security (e.g., Docker, Kubernetes).
6. Exposure to security in a hybrid cloud/on-premises infrastructure.
This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.
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:
$86,600 - $181,800
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.