Security Jobs 2026 (Now Hiring) – Smart Auto Apply

Job Title: Senior Cyber Security EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *

The Opportunity:

TCS offers a long-term contract opportunity supporting the National Geospatial-Intelligence Agency’s (NGA). Our team of talented Network and Cybersecurity professionals help design, develop, procure, implement, operate/sustain, and enhance NGA networks and cybersecurity posture in support of national security. Joining the TCS Team means working with truly cutting-edge technologies, on high performing cyber engineering teams, and benefiting from accelerated professional growth! In this Senior role you'll get to:

• Architect, Design, Build, Configure, and deploy on-premises and cloud-based cybersecurity infrastructure and applications running on Windows and Linux operating systems
• Engineer and implement cybersecurity solutions leveraging cloud services such as EC2, EBS, ELB, S3, and RDS. Provision AMIs, perform software installations, troubleshooting and maintenance.
• Assist with research and implementation of enterprise-wide cybersecurity solutions/capabilities/enhancements to support customer business/mission goals and objectives.
• Evaluate and recommend changes and/or technology upgrades to address performance, standardization and industry best practices
• Provide specific, detailed information for hardware and software selection, implementation techniques, and tools for the most efficient solution to meet business needs, including present and future capacity requirements.

Responsibilities:

• Represent customer requirements in technical exchanges with other government agencies.
• Develop and maintain architecture diagrams.
• Develop and maintain a road map for capabilities, operations, and technologies.
• Assist with development and execution of test plans and supporting documentation of all network configuration upgrades, additions or revisions for customer approval before implementation.
• May serve as a team or task lead.
• Coordinate with stakeholders and external assessors to facilitate security assessments and authorization processes.

Qualifications:Required: 

• A deep expertise in one of the following areas and working knowledge of one or more of the other following: Network Detection and Response (Vectra, Extrahop, Corelight etc), Endpoint Detection and Response (Carbon Black, CrowdStrike Falcon, Microsoft Defender), Next-Generation Firewalls (Palo Alto, Juniper, Cisco), Intrusion Detection/Prevention Systems (Cisco Firepower), F5 platforms, email/web security gateways (Proofpoint, Cisco)
• Strong technical background with a thorough understanding of cloud infrastructure, security principles, compute, storage, and transport.
• Expertise in Windows and Linux server operating systems.
• Excellent writing and communication skills, including the ability to develop analytical documents and present oral presentations to senior/executive management
• Ability to work independently with little direction and guidance
• 6+ years related technical experience in network/cybersecurity engineering and experience with large-scale enterprise/global networks in a highly diverse environment with an emphasis in DoD capabilities
• Demonstrated experience modernizing complex enterprise cybersecurity systems.
• Candidate must have a TS/SCI with ability to obtain a Polygraph
• Certified DoD 8140.01 and 8570.01-M Information Assurance Technical Officer (IAT) Level III 
• CSSP Infrastructure Support certification within 6 months of start date.

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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:

$113,200 - $237,800