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Added 1 min ago
Sr. Infrastructure Engineer
Jackson National Life Insurance
Chicago, IL
The Sr. Infrastructure Engineer is part of a team which is responsible for the management of the server environment ensuring the appropriate configuration, maintenance, and installation of…
Added 2 mins ago
Senior Quality Assurance Engineer
World Wide Technology
Maryland Heights, MO
…and scale intelligent AI, digital, cybersecurity, cloud and infrastructure solutions. Through its Advanced Technology Center (ATC)-a collaborative ecosystem featuring state-of-the-art…
Added 2 mins ago
Engineer - GEN AI
AVANGRID MANAGEMENT COMPANY, LLC.
United States Of America, CT
Avangrid employees may also be assigned a NERC Reliability Standards compliance role supporting Critical Infrastructure Protection (CIP) and/or Operations and Planning (O&P)…
Added 3 mins ago
Senior Linux Infrastructure Engineer - Local to Somerville, MA
Northern Light
Somerville, MA
…teams at Fortune 1000 enterprises, and it all depends on the infrastructure you'll…
Added 4 mins ago
Marketing Design Lead
Mappedin
Remote, United States
…of our web presence while also understanding the technical infrastructure needed to build, deploy, and maintain…
Added 6 mins ago
Facilities Engineer II
Freightliner Custom Chassis Corporation
Gaffney, SC
The Facility Engineer is responsible for the overall maintenance, reliability, improvement, and operational performance of multiple industrial facilities. This role provides engineering…
Added 7 mins ago
Infrastructure Engineer 2
United States
Madison College is seeking an Infrastructure Engineer 2 to join our Server Infrastructure team within Technology Services. This position is responsible for the administration, maintenance,…
Added 10 mins ago
E
Electrical Design Engineer
ERG
Indian Head, MD
- $95,000 to $130,000 USD / year
ERG is seeking an Electrical Design Engineer to support electrical design projects involving renovations, facility upgrades, and power distribution systems at a federal site. This position…
Added 12 mins ago
L55 - Lead DevOps Engineer II
Deloitte US
Dallas, TX · Hermitage, TN · Nashville, TN
…new approaches, languages, and frameworks - operating as an infrastructure-focused engineer, not a tool operator. Create technical specifications, runbooks, and shared playbooks; lead…
Added 12 mins ago
Lead Applied AI Site Reliability Engineer II - PxE ServiceNow
Deloitte US
Dallas, TX · Hermitage, TN
…new approaches, languages, and frameworks - operating as an infrastructure-focused engineer, not a tool operator. Create technical specifications, runbooks, and shared playbooks; lead…
Added 12 mins ago
Lead Applied AI Site Reliability Engineer II
Deloitte US
Dallas, TX · Hermitage, TN · Nashville, TN · Tampa, FL
…new approaches, languages, and frameworks - operating as an infrastructure-focused engineer, not a tool operator. Create technical specifications, runbooks, and shared playbooks; lead…
Added 12 mins ago
Applied AI Site Reliability Engineer III
Deloitte US
Dallas, TX · Hermitage, TN · Nashville, TN
…new approaches, languages, and frameworks - operating as an infrastructure-focused engineer, not a tool operator. Create technical specifications, runbooks, and shared playbooks; lead…
Added 12 mins ago
Applied AI Site Reliability Engineer I (PxE A&A)
Deloitte US
Dallas, TX · Tampa, FL
…new approaches, languages, and frameworks - operating as an infrastructure-focused engineer, not a tool operator. Create technical specifications, runbooks, and shared playbooks; lead…
Added 16 mins ago
Senior Forward Deployed Engineer (FDE Lead
ewminds consulting Services
East Pittsburgh, PA
Partner with architecture, security, compliance, and senior technology leadership to align on strategy and governance.
Added 16 mins ago
Senior Vice President, Infrastructure Engineering (Mainframe Communications Systems Software Engineer
ewminds consulting Services
Jersey City, NJ
(SVP) Senior Vice President, Infrastructure Engineering (Mainframe Communications Systems Software Engineer)
Added 17 mins ago
Endpoint Security Engineer III - Nessus
CACI
Springfield, VA · St. Louis, MO · Springfield · St. Louis
Job Title: Endpoint Security Engineer III - Nessus
Added 17 mins ago
NS
Software Engineer (Portal)
Northwood Space
Los Angeles, CA, CA
- $125,000 to $178,000 USD / year
Northwood is a modern space infrastructure company bringing the benefits of space to the masses through advanced communications technology. We are building a global network of phased array…
Added 17 mins ago
RU
IT Engineer
Randstad USA
Austin, TX
- $18 to $20 USD / hour
anti-virus software,Computer Maintenance,Networking Technology,security infrastructure,Google Workspace,Information Technology,Jira,Linux,local security,Excel,Microsoft Office…
Added 18 mins ago
K
Senior Micro-Segmentation LAN Engineer
Kforce
Plano, TX
- $65 USD / hour
This is a senior, hands-on engineering role focused on LAN micro-segmentation, Cisco networking technologies, network security, and policy-based access controls. The ideal candidate brings…
Added 19 mins ago
Sr. DevOps / Cloud Engineer
NTT DATA Services
Nashville, TN
We are seeking an experienced DevOps / Cloud Engineer to support cloud-based data platforms and automation initiatives, with a strong focus on Terraform, Kubernetes, Java/Python, and…
Added 21 mins ago
SS
Network Engineer
Select Source Solutions
Seattle, WA
- $56.79 to $62.5 USD / hour
Our client is seeking a Network Infrastructure Engineer to support the day-to-day operation, security, reliability, and performance of an enterprise network in an on-site work environment.
Added 22 mins ago
UG
Senior Software Engineer - Remote
UnitedHealth Group
Eden Prairie, MN
- $91,700 to $163,700 USD / year
The Sr. Software Engineer is a senior technical contributor responsible for designing, developing, deploying, and maintaining scalable, secure, and high-performing enterprise software…
Added 23 mins ago
Senior Network Engineer
City of Concord
Concord, NC
Architects and administers all of the City’s enterprise networks, including infrastructure design, implementation, configuration, and maintenance of routers, firewalls, switches, VPN…
Added 23 mins ago
MT
ESS Terminals Systems Engineer
Modern Technology Solutions Inc
El Segundo, CA · El Segundo
- $135,000 to $169,000 USD / year
The ESS Terminals Systems Engineer will play a critical role in designing, implementing, and maintaining complex infrastructure, platform, and software systems that support National…
Added 24 mins ago
Data Center Controls Engineer, Midland, TX
Amazon Data Services, Inc.
Odessa, TX
AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all…

CACI

Endpoint Security Engineer III - Nessus

Springfield, VA, United States
St. Louis, MO, United States
Springfield, United States
St. Louis, United States

$75,200-$158,100 · Full-time

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Job details

Pay: $75,200-$158,100
Job type: Full-time
Apply by: May 8, 2027
Posting language: English
Posted: Nov 9, 2026

Original job description

Job Title: Endpoint Security Engineer III - Nessus

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 has an exciting opportunity for a Senior Endpoint Security Engineer to join our Transport & Cybersecurity Services (TCS) team in either Springfield, VA or St. Louis, MO. Our Endpoint Security team is rapidly growing! This is one of several New positions that we have added to the TCS program. This is an exceptional opportunity for a TS/SCI cleared professional to join an incredibly talented team, work with cutting edge technologies, and propel your career within the Cyber realm! TCS is a long-term, CACI Prime contract with the National Geospatial-Intelligence Agency (NGA) in support of the customer’s GEOINT mission. The Endpoint Security Engineer will support our Intelligence Community customer’s various endpoint security platforms. Positions on TCS require a TS/SCI clearance to be eligible for hire; with the ability to successfully pass a Government polygraph as a post-hire requirement.

Responsibilities:

We are seeking a highly skilled Tenable product Administrator with hands-on experience in Linux platforms to join our team. The ideal candidate will be responsible for managing and administering our Tenable Suite environment, as well as configuring and maintaining them on Linux systems. This role requires a deep understanding of vulnerability management, security protocols, and the Tenable product suite, with a strong focus on Linux-based installation.

Install, configure, and maintain the Tenable Security Center, Tenable Nessus Scanners, and Tenable Nessus Managers on Linux platforms.
Perform regular vulnerability scans and assessments across the organization's network using Tenable products
Analyze scan results and prioritize vulnerabilities based on severity and impact.
Collaborate with IT and security teams to remediate identified vulnerabilities.
Generate and distribute vulnerability reports to stakeholders.
Monitor security alerts and respond to incidents in a timely manner.
Stay updated on the latest security threats and vulnerabilities.
Provide training and support to users on the Tenable Security Center, Tenable Nessus Scanners, and Tenable Nessus Managers on Linux
Ensure the optimal performance and security of the Tenable environment on Linux platforms
Configure and install various security products utilizing Linux OS.

Qualifications:

Required:

TS/SCI clearance (current). As a post-hire requirement, selected candidate must be able to successfully pass and maintain a Government polygraph.
DoD 8570 IAT Level II certified (current)
Must obtain a CSSP Infrastructure Support certification within 6 months of hire date
Bachelor's degree (Engineering, Computer Science or related field) and ten (10) years of technical experience in Cyber Security. Additional experience may be considered in lieu of a degree.
Working knowledge of maintaining Enterprise Cyber Security Engineering requirements utilizing all or some of the following tools: Tenable Suite that include Security Center, Nessus Scanners, Nessus Manager with hands-on administrator experience
Strong working knowledge of Linux operating systems, including installation, configuration, and maintenance • Experience with large-scale enterprise/global networks in a high-paced, diverse environment
Understanding of and experience with the DoD Architecture Framework and other key DoD network architecture and strategic planning instructions
Experience in providing status reports and products to senior management and customers
Experience with plans, designs, and evaluations of security systems and architectures

Desired:

CSSP Infrastructure Support certification
Any Linux related certifications
Familiarity with scripting languages (e.g., Python, PowerShell) for automation tasks

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.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$75,200-$158,100

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.

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