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Added 7 mins ago
DevSecOps Security Engineer
Leidos
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Leidos is seeking a DevSecOps Security Engineer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Automation Platform…
Added 8 mins ago
Principal Modeling Simulation and Analysis Systems Engineer
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We are looking for a Principal Modeling Simulation and Analysis Systems Engineer to join our team in Baltimore, MD. This position requires 100% on-site work.
Added 15 mins ago
RQ228116 NCIS Network Engineer | Shift Work | Active TS/SCI clearance
GD Information Technology, Inc.
United States
Transform technology into opportunity as a Network Engineer with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the…
Added 15 mins ago
Field Engineer
GD Information Technology, Inc.
United States
…government, defense, and intelligence projects. Join GDIT as a Field Engineer Senior for a career where your growth is just as important as the mission you…
Added 21 mins ago
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Senior Embedded Systems Verification Engineer
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Added 22 mins ago
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Added 23 mins ago
Information Environment Operations and Systems Specialist
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…operations in the information environment? As an integration engineer, you know the importance of ensuring government and commercial applications and systems work together. You're eager to…
Added 41 mins ago
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Senior Platform Software Engineer
Oracle
Nashville, TN
- $87,800 to $209,500 USD / year
As a Senior Software Engineer you will own software architecture and development of Oracle's GenAI Agent Platform. You should be both a rock solid coder and a distributed systems…
Added 1 hour ago
Enterprise Architecture Manager, Senior Vice President
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Autonomous AI & Developer Platforms (Devin AI / AI Engineering): Architect and integrate autonomous software engineering agents and AI coding platforms (e.g., Devin AI , GitHub Copilot…
Added 1 hour ago
SCADA Commissioning Engineer
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Remote, United States
GE Vernova is seeking a skilled SCADA System Engineer to lead and execute pre-commissioning, commissioning, integration, testing, and maintenance activities for Supervisory Control and Data…
Added 1 hour ago
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Staff Nuclear Engineer
Radiant Industries
El Segundo, CA
- $195,713 to $262,500 USD / year
Radiant is seeking a Staff Nuclear Engineer to provide technical expertise across the nuclear design and analysis of Kaleidos. You will work across core physics, neutron and radiation…
Added 1 hour ago
Guidance and Control Engineer II - TS/SCI
JPL/NASA
Pasadena, CA
We are seeking a versatile, cross-functional GNC Engineer to support our classified programs. As a cleared Guidance and Control Engineer at JPL, you will work for the Guidance and Control…
Added 1 hour ago
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Senior Systems Engineer - RF Sensing and Mission Systems
Viasat, Inc.
Carlsbad, CA
- $224,500 to $336,500 USD / year
Join Viasat's Government organization as a Senior Staff Systems Engineer supporting the development of advanced RF sensing, signal exploitation, communications, and mission systems. This…
Added 1 hour ago
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Staff Embedded Software Engineer - 5G Devices & NTN Connectivity
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- $205,000 to $307,000 USD / year
Develop automated test frameworks and validation solutions for software platform verification.
Added 1 hour ago
ASIC Verification Engineer
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United States
We are seeking a highly skilled ASIC Verification Engineer to design, implement, and maintain advanced verification infrastructure across our diverse portfolio of ASIC products. In this…
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Full Stack Engineer
True Talent Solutions Partners
San Francisco, CA
- $230,000 to $300,000 USD / year
Join a team building software infrastructure that helps organizations improve the reliability of AI agents in production. You will work across product and platform engineering, with a…
Added 3 hours ago
Software System Engineer
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Houston, TX
We are seeking a highly motivated and experienced Senior Software System Engineer to support the certification activities of the flight software for the Nyx program. You will work in a…
Added 3 hours ago
Sr. Engineer Firmware Engineering XII
Vertiv
United States
The Sr. Firmware Engineer will develop, sustain, and provide technical ownership of embedded firmware solutions for Single Phase UPS products. The role focuses on real-time DSP/MCU firmware…
Added 3 hours ago
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Sr. Software Engineer
Robert Half
Peoria, AZ
- $150,000 to $155,000 USD / year
We are looking for a Senior Software Engineer to lead the software direction of a well-established product line in Peoria, Arizona. This role is ideal for an engineer who enjoys working at…
Added 3 hours ago
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Principal Core Infrastructure Engineer
Oracle
Austin, TX
- $114,600 to $234,600 USD / year
Oracle Cloud Infrastructure (OCI) is hiring a Principal Core Infrastructure Engineer to join the Next Gen Network Observability team. Help build cloud-scale intelligence systems that enable…
Added 3 hours ago
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Core Infrastructure Engineer 2
Oracle
Nashville, TN
- $70,000 to $166,100 USD / year
As a Core Infrastructure Software Engineer, you will:
Added 3 hours ago
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Electrical Engineer
Actalent
Saint Joseph, MI
- $35 to $45 USD / hour
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Added 4 hours ago
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Ford
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Digitize patterns and refining them in 2D software such as Accumark and Tukatech

Closed listing

GD Information Technology, Inc.

Senior Network Security Engineer

United States

The likely salary range for this position is $119,000 - $161,000.

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: The likely salary range for this position is $119,000 - $161,000.
Posting language: English
Posted: Nov 7, 2026

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Original job description

Archived listing. The details below describe a past opening.

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

None

Clearance Level Must Be Able to Obtain:

None

Public Trust/Other Required:

NACI (T1)

Job Family:

Cyber and IT Risk Management

Job Qualifications:

Skills:

Cisco Firewall, Cisco VPN, Palo Alto Networks Next Generation Firewalls (NGFW), Remote Access VPNCertifications:

NoneExperience:

4 + years of related experienceUS Citizenship Required:

Job Description:

The Senior Network Security Engineer is responsible for the configuration, deployment, and management of the customer’s security appliances and infrastructure in a 24x7x365 environment. The senior engineer is responsible for but not limited to monitoring, configuration changes, accounts, and software updates for the customer’s security appliances for internal and border security framework. The engineer must be able to analyze, troubleshoot, and remediate issues within the enterprise. The engineer will also work closely with other teams to ensure that all security solutions are performing to standard.

This position is located at 6555 Rock Spring Drive, Bethesda, MD travel is primarily local in the DC metro area.

Responsibilities:

Administration of LAN technologies for Cisco ASA Firewalls
Administration of firewalls, including but not limited to Cisco ASA, ACS, RSA, Cisco AnyConnect, Gigamon, Cisco VPN, Palo Alto
Assist in troubleshooting and problem solving for a wide variety of client/user LAN/Security related issues
Work closely with other IT functional teams to ensure cohesive support and strategies across the IT organization
Support the development of project plans and execute as authorized
Maintain relationships with key Third-Party software/hardware vendors to provide support to the infrastructure as needed.
Provide daily support for tickets: service requests, incidents, problems, and tasks
Execute tasks to support projects
Auditing and Compliance
Configuration changes and Code upgrades needed to address vulnerabilities report by internal/external audits.
Vulnerability mitigation.
IOS code version bug scrapping with Cisco SME/TAC
IOS code version lab testing before implementing in production
Quarterly IOS code upgrades
Auditing of any newly deployed firewalls to verify compliance
24-hours availability for weekly On-Call rotation with the security team
Firewall hardware refreshes including rack and stack

Required Skills:

BS degree in Computer Science, Information Systems or equivalent.
Minimum of four years of experience implementing and maintaining Cisco ASA, VPN, ACS, AnyConnect, Gigamon
Minimum four years of experience in a Network Security Engineering role.
Experience with network infrastructure in enterprise datacenter solutions.
Experience with mid to large scale implementations of Cisco firewalls.
Ability to obtain a Public Trust

The likely salary range for this position is $119,000 - $161,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

Travel Required:

Less than 10%

Telecommuting Options:

Hybrid

Work Location:

USA MD Bethesda

Additional Work Locations:

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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