Jobs in the United States

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Added 1 hour ago
Director, Mechanical Engineer
L3Harris
Palm Bay, FL
An active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with a favorable polygraph is required.
Added 3 hours ago
Networking Security Engineer II
CACI International
Linthicum Heights, MD
Minimum Clearance Required to Start: TS/SCI with Polygraph
Added 3 hours ago
Systems Engineer/ Principal Systems Engineer (Level 2 & 3)
Northrop Grumman
Annapolis, MD
PLEASE NOTE: Candidate must have an ACTIVE Secret Security Clearance in order to be considered for this role · Qualified applicants must have 2 years of experience with a Bachelors Degree or zero experience with a Masters Degree or PHD
Added 3 hours ago
Amazon Dedicated Cloud Engineer, Region Reliability
Amazon
Denver, CO
This position requires that the candidate selected must currently possess and maintain an active TS/SCI security clearance. The position further requires the candidate to opt into a…
Added 4 hours ago
Systems Engineering Associate Manager - TS/SCI w/ Polygraph
Lockheed Martin
King of Prussia, PA
Candidate must possess a TS/SCI with Poly clearance
Added 7 hours ago
TA
Remote Sensing Architecture Performance Analyst Engineer
The Aerospace Corpor
Colorado Springs, CO
- $91,800 to $159,500 USD / year
…innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of…
Added 7 hours ago
TA
Remote Sensing Architecture Performance Analyst Engineer/Senior Remote Sensing A
The Aerospace Corpor
Colorado Springs, CO
- $91,800 to $159,500 USD / year
…innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of…
Added 9 hours ago
Windows Systems Engineer, Region Services Corporate Infrastructure (Vector) Team
Amazon Development Center U.S., Inc.
Herndon, VA
This position requires that the candidate selected must obtain and maintain an active TS/SCI security clearance with polygraph. The position further requires the candidate to opt into a…
Added 9 hours ago
Mission Protection Systems Engineer (OSS-SR)
Stellar Solutions Inc
Chantilly, VA
Active TS/SCI clearance with CI polygraph, and DOD SAP eligibility
Added 11 hours ago
Senior Platform DevOps Engineer - TS/SCI w/ Poly
Parsons Technical Services, Inc.
MD
…governed, enterprise-scale service. As a Senior Platform / DevOps Engineer on this team, you will build and run the infrastructure, pipelines, and control-plane guardrails that let the…
Added 11 hours ago
Electrical Systems Engineer
Northrop Grumman
Stafford
Northrop Grumman Defense Systems is seeking an Electrical Systems Engineer to work for our Whisper program at a government customer site in Stafford, Virginia.
Added 11 hours ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon.com Services LLC
Herndon, VA
This position requires that the candidate selected be a US Citizen and obtain and maintain an active TS/SCI security clearance with polygraph.
Added 11 hours ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon.com Services LLC
Herndon, VA
This position requires that the candidate selected be a US Citizen and obtain and maintain an active TS/SCI security clearance with polygraph.
Added 11 hours ago
A
665 Cloud Software Engineer 3
ARSIEM
Annapolis Junction, MD
- $230,000 to $257,000 USD / year
ARSIEM is currently looking for a Cloud Software Engineer 3. The Cloud Software Engineer develops, maintains, and enhances complex and diverse Big Data cloud systems based on documented…
Added 12 hours ago
Systems Engineer
SAIC
Chantilly, VA
SAIC is seeking an expert-level Systems Engineer to provide strategic program management and SETA support for multiple AI/ML and data analytics initiatives within a mission-critical…
Added 12 hours ago
Software Development Engineer, Amazon Dedicated Cloud, Early Career - 2027, Amazon Dedicated Cloud (ADC)
Amazon.com Services LLC
Jessup, MD · Seattle, WA · Arlington, VA · Denver, CO · Herndon, VA
…Citizen and obtain and maintain a security clearance at the TS/SCI with polygraph level. Upon start, the selected candidate will be sponsored for a commensurate clearance for each…
Added 13 hours ago
Software Engineer, Senior
Booz Allen Hamilton_United States
Dahlgren, VA
…future concerns. That’s because you’re a software architect with a solid background in designing secure, scalable, and resilient software solutions for classified defense and intelligence…
Added 13 hours ago
Command & Telemetry (C&T) Engineer (Network Designer Level III) (Government)
AT&T Technical Services Company, Inc.
Remote, United States
This position requires office presence a minimum of 5 days per week and is only located in the location(s) posted · Candidate must have 16 years of experience that can be a combination of work history and education
Added 13 hours ago
Enterprise Data Systems Engineer
Arcfield
Chantilly, VA
Clearance: Must possess and be able to maintain a TS/SCI with Polygraph
Added 13 hours ago
Cyber Security Solutions Engineer
Arcfield
Chantilly, VA
Must possess and be able to maintain a TS/SCI with Polygraph
Added 13 hours ago
Cybersecurity Solutions Engineer
Arcfield
Chantilly, VA
Must possess and be able to maintain a TS/SCI with Polygraph
Added 13 hours ago
System Engineer (Acquisition Specialist)
Arcfield
Chantilly, VA
Required Clearance: Must possess and be able to maintain a TS/SCI with Polygraph
Added 13 hours ago
System Engineer (Acquisition / Integration)
Arcfield
Chantilly, VA
Required Clearance: Must possess and be able to maintain a TS/SCI with Polygraph
Added 13 hours ago
Enterprise Data Systems Engineer
Arcfield
Chantilly, VA
Clearance: Must possess and be able to maintain a TS/SCI with Polygraph
Added 14 hours ago
Systems Engineering Technical Task Order Manager
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph

Closed listing

Senior Network Engineer

Laurel, MD, United States

Pay Range $116,350.00 - $210,325.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: Pay Range $116,350.00 - $210,325.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.
Posting language: English
Posted: Nov 2, 2026

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Original job description

Archived listing. The details below describe a past opening.

ob Description

Job Description

Network Engineer (NE) Leidos – Cyber & Analytics Business Area, Key Management & Analytics Division, Your Experience. A Critical Mission. Real Impact.

Leidos has an exciting opportunity for an experienced Network Engineer to join our Cyber & Analytics Business Area, Key Management & Analytics Division, supporting critical national-security missions.

This is an opportunity to apply deep network engineering expertise to complex, mission-critical environments - from designing and optimizing secure networks to deploying communications capabilities, troubleshooting complex problems, integrating emerging technologies, and guiding other network engineers.

You'll work alongside systems engineers, cybersecurity professionals, technical teams, and mission partners to ensure network and telecommunications capabilities are secure, resilient, optimized, and ready to perform when the mission demands it.

This is a full-time, on-site position in a secure mission environment. Due to the nature of the work and security requirements, remote work is not available for this position.

If you're an experienced network engineer who enjoys solving difficult technical problems and wants to see your expertise translate directly into mission capability, we'd like to talk.

What You'll Do As a Senior Network Engineer, you'll provide senior-level engineering expertise across the network and telecommunications lifecycle - from architecture and design through integration, deployment, operations, optimization, and sustainment.

Design, Engineer & Deploy Mission Networks - Design, build, integrate, test, document, and deploy secure network and telecommunications solutions supporting complex mission requirements. Engineer solutions incorporating routing protocols, BGP, policy-based routing, traffic shaping, tunneling, IPsec, NAT, firewall contexts, load balancing, WAN acceleration, and network monitoring, while integrating new technologies as mission needs evolve.
Operate, Secure & Optimize Network Infrastructure - Configure, install, maintain, and optimize network and telecommunications infrastructure, including routers, firewalls, intrusion detection systems, cryptographic devices, VoIP, VTC, POTS, and VSAT satellite communications systems. Monitor accredited environments, analyze traffic and TCP performance, minimize latency, maximize throughput, and help ensure the required security and operational posture is maintained.
Troubleshoot Complex Network & Telecommunications Challenges - Lead investigation, diagnostics, and resolution of complex network incidents and performance issues. Analyze system logs, traffic characteristics, connectivity, transmission speeds, packet behavior, and throughput; identify root causes and develop, test, document, and implement solutions and workarounds. Assess and apply patches, updates, configuration changes, backup procedures, and corrective actions using approved methods and procedures.
Provide Technical Leadership & Mission Integration - Partner with systems engineers, cybersecurity professionals, external Network Operations Centers (NOCs), telecommunications providers, and cross-organizational teams to translate mission requirements into effective technical solutions. Maintain network diagrams and configuration documentation, support Certification and Accreditation (C&A) requirements, and provide technical leadership and guidance to Level 0–2 Network Engineers, validating their work and ensuring approved engineering methods and procedures are followed.

What You'll Bring This position requires an experienced cybersecurity professional with demonstrated Information Systems Security Officer experience supporting programs and contracts of comparable scope, type, and complexity.

Basic Qualifications:

Twelve (12) years of experience as a Network Engineer on programs and contracts of similar scope, type, and complexity.
Bachelor's degree in a technical discipline from an accredited college or university. Five (5) years of experience in Network Engineering disciplines may be substituted for the bachelor's degree.
Active TS/SCI clearance with Polygraph and ability to work full-time on site in a secure mission environment.
Current Cisco Certified Network Professional (CCNP) certification in an applicable networking discipline, or an equivalent certification approved by the program.
Demonstrated experience designing, configuring, implementing, troubleshooting, and optimizing complex network and telecommunications environments, including routing protocols, BGP, policy-based routing, tunneling, IPsec, NAT, WAN technologies, traffic management, and network performance analysis.
Experience configuring, testing, installing, troubleshooting, and maintaining enterprise network and security infrastructure, including routers, firewalls, intrusion detection systems, cryptographic devices, and related network technologies.
Demonstrated ability to diagnose and resolve complex network and telecommunications problems, develop and document technical solutions, and provide technical guidance and leadership to junior and mid-level Network Engineers.

Preferred Qualifications:

Hands-on experience configuring, administering, troubleshooting, and optimizing Palo Alto Networks firewalls, including security policies, NAT, routing, logging, and traffic analysis.
Experience with VoIP, Video Teleconferencing (VTC), POTS, and/or VSAT TDMA IP-based satellite communications systems.
Experience performing advanced TCP/IP and network performance analysis, including troubleshooting latency, throughput, packet flow, and end-to-end network performance.
Experience supporting accredited network environments, including configuration management, security compliance, and Certification and Accreditation (C&A) activities.
Experience introducing, evaluating, and integrating new network and telecommunications technologies into complex operational environments.

Why Leidos? At Leidos, you'll work alongside talented technical and mission professionals solving complex challenges where cybersecurity is fundamental to mission success.

You'll have opportunities to continue developing your expertise while contributing to consequential national-security work and connecting with the breadth of technical capabilities and career opportunities across Leidos.

Eligible employees have access to a competitive benefits package that includes:

Paid Time Off
11 paid holidays
401(k) with a 6% company match and immediate vesting
Employee Stock Purchase Plan
Technical upskilling and professional-development opportunities
Education and training support
Paid parental leave
Additional health, wellness, and employee benefits

Ready to Make an Impact? At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

November 2, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $116,350.00 - $210,325.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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Skills

Google Analytics
Cybersecurity
Security regulations
BGP
WAN
Troubleshoot
Leadership
Documentation
CCNP
Troubleshooting
Teleconferencing
Regulatory compliance

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Work requirements

Jobs in the United States