ZipRecruiter

Log In

Leidos
Leidos

120 Leidos Security Systems Engineer Jobs Hiring Near You

Leidos

Electrical Systems Engineer

Vista, CA · On-site

$87K - $157K/yr

Description The Security Enterprise Solutions (SES) operation at Leidos currently has an opening ... systems. * Able to effectively work with a cross-functional team of scientists, engineers, and ...

Leidos

Systems Engineer

Huntsville, AL · On-site

$87K - $157K/yr

Our team is solving the world's toughest security challenges for customers with "can't fail" missions. Leidos Defense is seeking a Systems Engineer to join a team of systems engineers developing a ...

Leidos

Systems Engineer

Huntsville, AL · On-site

$57K - $104K/yr

Our team is solving the world's toughest security challenges for customers with "can't fail" missions. Leidos Defense is seeking a Systems Engineer to join a team developing an interceptor system.

Leidos

Systems Engineer

Huntsville, AL · On-site

$87K - $157K/yr

Our team is solving the world's toughest security challenges for customers with "can't fail" missions. Leidos Defense is seeking a Systems Engineer to join a team of systems engineers developing a ...

Leidos

Information Systems Security Engineer

Linthicum, MD · On-site

$107K - $195K/yr

Leidos is currently seeking an Information Systems Security Engineer to support our customer onsite. The ISSE shall perform, or review, technical security assessments of computing environments to ...

Leidos

Information Systems Security Engineer

Linthicum, MD · On-site

$107K - $195K/yr

Leidos is currently seeking an Information Systems Security Engineer to support our customer onsite. The ISSE shall perform, or review, technical security assessments of computing environments to ...

Leidos

Crypto Systems Engineer

Linthicum, MD · On-site

$107K - $195K/yr

Leidos is currently looking to add a Sr. Crypto Systems Engineer to an Information Assurance ... Clearly document security deficiencies found in the evaluation of artifacts and documents.

Leidos

Electrical Systems Engineer

Vista, CA · On-site

$87K - $157K/yr

The Security Enterprise Solutions (SES) operation at Leidos currently has an opening for an ... systems. * Able to effectively work with a cross-functional team of scientists, engineers, and ...

Leidos

Systems Engineer

Clovis, NM · On-site

$87K - $157K/yr

TS/SCI Leidos is seeking a Systems Engineer to support the Air Force Special Operations Command ... Security+ CE (IAT Level II) * Hands-on experience with VMware ESXi, vCenter, Horizon, vSAN, and App ...

Leidos

Crypto Systems Engineer

Linthicum Heights, MD · On-site

$107K - $195K/yr

Leidos is currently looking to add a Sr. Crypto Systems Engineer to an Information Assurance ... Clearly document security deficiencies found in the evaluation of artifacts and documents.

Leidos

Systems Engineer

Huntsville, AL · On-site

$87K - $157K/yr

Leidos' Defense Systems Land Systems is seeking a Systems Engineer to join a team of systems ... Our team is solving the world's toughest security challenges for customers with "can't fail ...

Leidos

Systems Engineer

Chantilly, VA

At Leidos , we deliver innovative solutions through the efforts of our diverse and talented people ... The role also includes support for endpoint security enforcement using Trellix ePolicy Orchestrator ...

Leidos

Systems Engineer

Huntsville, AL · On-site

$87K - $157K/yr

Leidos' Defense Systems Land Systems is seeking a Systems Engineer to join a team of systems ... Our team is solving the world's toughest security challenges for customers with "can't fail ...

Leidos

Systems Engineer

Huntsville, AL · On-site

$87K - $157K/yr

Leidos' Defense Systems Land Systems is seeking a Systems Engineer to join a team of systems ... Our team is solving the world's toughest security challenges for customers with "can't fail ...

Leidos

Systems Engineer

Huntsville, AL · On-site

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people ... Our team is solving the world's toughest security challenges for customers with "can't fail ...

Leidos

Systems Engineer

Chantilly, VA · On-site

At Leidos , we deliver innovative solutions through the efforts of our diverse and talented people ... The role also includes support for endpoint security enforcement using Trellix ePolicy Orchestrator ...

Leidos

Electrical Systems Engineer

Vista, CA · On-site

$87K - $157K/yr

The Security Enterprise Solutions (SES) operation at Leidos currently has an opening for an ... systems. * Able to effectively work with a cross-functional team of scientists, engineers, and ...

previous page
separator
next page

Showing results 81-100

All JobsLeidos JobsLeidos Security Systems Engineer Jobs

Leidos Jobs Information

What is it like to work at Leidos?

Leidos is a company that values innovation, collaboration, and customer satisfaction, fostering a culture of teamwork and continuous learning. The company's structure is often organized around mission-focused teams, with employees working on projects that support national security, healthcare, and environmental initiatives, often in dynamic and fast-paced environments. Working at Leidos may appeal to candidates who are passionate about making a difference in their communities and are interested in contributing to projects that have a significant impact on society.

What makes Leidos an attractive place to work?

Leidos is a leading provider of technology, engineering, and cybersecurity solutions to the U.S. government and other organizations, with a strong reputation for delivering innovative and effective solutions. The company fosters a collaborative and dynamic work environment that encourages innovation, creativity, and professional growth, with opportunities for employees to work on complex and challenging projects. By joining Leidos, individuals can contribute to making a meaningful impact in critical areas such as national security, healthcare, and environmental sustainability, while also developing their skills and advancing their careers.

Do workers at Leidos get paid breaks?

Sometimes. Only some people get paid breaks.
43% of people say they don’t get paid breaks.
Based on data from 37 people who took the Breakroom Quiz between August 2025 and July 2026.

Does Leidos pay people when they’re sick?

Yes. Most people get paid when they’re sick.
67% of people say they would get paid if they were sick but scheduled to work.
Based on data from 48 people who took the Breakroom Quiz between August 2025 and August 2026.

At Leidos, are sick days and vacation days separate paid time off?

Only some people have separate paid time off for sick days and vacation.
64% of people say they have to use vacation days when they’re out sick.
Based on data from 45 people who took the Breakroom Quiz between August 2025 and August 2026.

Is the health insurance from Leidos affordable enough for their workers?

Most people say the health insurance costs are okay.
93% of people say the health insurance costs are okay
Based on data from 41 people who took the Breakroom Quiz between August 2025 and August 2026.

Do people get paid time off at Leidos?

Most people get paid time off work.
98% of people say they get paid time off.
Based on data from 52 people who took the Breakroom Quiz between August 2025 and August 2026.

How far ahead of time do people find out their work schedule?

Most people find out their schedule less than four weeks ahead of time.
  • 44% of people with changing schedules find out their shifts one week or less ahead of time.
  • 20% of people with changing schedules find out their shifts two weeks ahead of time.
  • 12% of people with changing schedules find out their shifts three weeks ahead of time.
  • 24% of people with changing schedules find out their shifts four weeks or more ahead of time.

Based on data from 25 people who took the Breakroom Quiz between November 2024 and March 2026.

Do workers at Leidos worry about hours?

Most people don’t worry about getting enough hours.
95% of people report they don’t worry about getting enough hours.
Based on data from 42 people who took the Breakroom Quiz between April 2025 and April 2026.

Do Leidos workers get to choose the shifts they work?

Some people don’t get to choose which shifts they work.
45% report that they don’t have enough control over which shifts they work.
Based on data from 38 people who took the Breakroom Quiz between March 2025 and March 2026.

How easy is it for Leidos workers to change shifts?

Most people find it easy to change shifts.
79% of people report that it’s easy to change shifts if they need to.
Based on data from 53 people who took the Breakroom Quiz between December 2024 and April 2026.

How easy is it to get time off at Leidos?

Most people find it easy to get time off.
84% of people report it’s easy to get time off.
Based on data from 45 people who took the Breakroom Quiz between August 2025 and August 2026.

Do Leidos managers change schedules at the last minute?

Most managers don’t change people’s schedules at the last minute.
100% of people say their manager doesn’t change their shift schedule at the last minute.
Based on data from 42 people who took the Breakroom Quiz between April 2025 and April 2026.

Do jobs at Leidos spill into time workers aren’t paid for?

Rarely. The job doesn't usually spill into unpaid time.
18% of people report that their job takes up time that they don’t get paid for.
Based on data from 44 people who took the Breakroom Quiz between April 2025 and April 2026.

How easy is it to take sick days at Leidos?

Most people find it easy to take sick days.
88% of people report that it’s easy to take time off if they are sick.
Based on data from 49 people who took the Breakroom Quiz between August 2025 and August 2026.

Is a Leidos job good for students?

Most students say this is a good place to work if you’re studying.
81% of students report this is a good place to work if you’re studying.
Based on data from 16 people who took the Breakroom Quiz between December 2024 and April 2026.

Is working at Leidos good if you’re a parent or caregiver?

Most parents and caregivers say this is a good place to work.
88% of people who care for a child or other relative report this is a good place to work.
Based on data from 56 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at Leidos feel treated with respect by their managers?

Most people feel treated with respect by their managers.
82% of people say they’re treated with respect by their managers.
Based on data from 49 people who took the Breakroom Quiz between August 2025 and August 2026.

Do people at Leidos get to take their breaks without interruption?

Most people get breaks without interruption.
74% of people report that they get to take their breaks without interruption.
Based on data from 42 people who took the Breakroom Quiz between August 2025 and August 2026.

Is it stressful to work at Leidos?

Most people feel stressed out here.
67% of people say they often feel stressed out at work.
Based on data from 49 people who took the Breakroom Quiz between August 2025 and August 2026.

Do people at Leidos enjoy their jobs?

Most people enjoy their job.
76% of people report they enjoy their job.
Based on data from 45 people who took the Breakroom Quiz between August 2025 and July 2026.

Do people at Leidos recommend working with their team?

Only some people recommend working with their team.
46% of people report that they wouldn’t recommend working with their immediate team to a friend.
Based on data from 52 people who took the Breakroom Quiz between August 2025 and August 2026.

Do people get enough training when they start at Leidos?

Some people didn’t get enough training when they started.
37% of people report they didn’t get enough training when they started working here.
Based on data from 49 people who took the Breakroom Quiz between August 2025 and August 2026.

Do people get support to advance at Leidos?

Only some people are given support to advance their career here.
In the last year, 44% of people report not being given support to advance their career here.
Based on data from 48 people who took the Breakroom Quiz between August 2025 and August 2026.

Do people think Leidos’s headquarters understands what’s happening where they work?

Most people think headquarters doesn’t understand what’s happening where they work.
76% of people think that this employer’s headquarters or owners don’t have a good understanding of what’s really happening where they work.
Based on data from 45 people who took the Breakroom Quiz between August 2025 and August 2026.

Do workers feel well informed about how Leidos is doing?

Most people feel well informed about how the company is doing.
67% of people feel that they are kept well informed about how the company is doing as a whole.
Based on data from 48 people who took the Breakroom Quiz between August 2025 and August 2026.

What other companies are hiring for Security Systems Engineer jobs?

What are the most popular jobs at Leidos?

What are the most popular categories at Leidos?

Infographic showing various Security Systems Engineer job openings at Leidos in the United States as of August 2026, with employment types broken down into 99% Full Time, and 1% Part Time. Highlights an 93% Physical, 3% Hybrid, and 4% Remote job distribution.

SECURITY SYSTEMS ENGINEER

Northhill Technology

Washington, DC • On-site

Full-time

Re-posted 22 days ago

Job description

NorthHill Technology Resources has a need for a Systems Security Engineer to support a Federal Program in Washington, DC.This is a direct-hire role with our client, a fast-growing Federal Cybersecurity Integrator.A TS/SCI and Yankee White are required.
Overview
The Security Systems Engineer will be responsible for the technical management of security infrastructure supporting both Windows and Linux-based network platforms. The role involves overseeing security system maintenance, upgrades, and expansion, ensuring all systems comply with Department of Defense (DoD) and DISA (Defense Information Systems Agency) policies. This position is located at the Naval Station Anacostia Annex in Washington, DC.
Key Responsibilities
  • Security Infrastructure Management: Oversee and manage security infrastructure on Windows and Linux-based networks. Ensure compliance with DoD policies and DISA guidelines for system and security updates, patches, and configurations.
  • System Maintenance: Conduct security system maintenance, upgrades, and troubleshooting in line with DISA requirements, ensuring system performance, security, and availability.
  • Network Operations: Maintain and monitor security systems, including IDS, HBSS, and related tools, to ensure the health of applications and systems.
  • Security Policy Development: Create and update security policies, procedures, and configurations in accordance with DISA standards to protect critical network infrastructure.
  • Incident Response: Work with first responders and analysts to detect and address security anomalies and events through system monitoring, HBSS reports, and incident tracking.
  • Reporting & Analysis: Develop and generate SQL-based reports, run queries, and analyze system logs and HBSS data to identify and resolve potential security threats.
  • Collaboration: Collaborate with various divisions and departments to resolve security issues, ensure system upgrades, and meet operational objectives.
  • Training & Documentation: Develop training materials and provide on-site training regarding system configurations, security tools, and policies. Maintain detailed documentation for system configurations and procedures.
  • Security Detection & Prevention: Implement and tune security software to detect and prevent malicious activity, including deploying, configuring, and testing new agents.

Desired Skills
  • Technical Communication: Strong oral and written communication skills, with the ability to produce clear technical documentation and effectively interact with various teams.
  • System Administration: Hands-on experience managing multi-site network environments (Windows/Linux), including experience with McAfee's ePO, Rogue Sensor Detection, HIPS, Policy Auditor (PA), Data Loss Prevention (DLP), etc.
  • Intrusion Detection & Prevention: Deep understanding of intrusion detection techniques, with hands-on experience in protecting DoD computer networks and systems.
  • Cloud Security: Experience with cloud-related security principles, including design, engineering, and maintenance.
  • System Performance & Availability: Expertise in configuring and maintaining servers, backups, and monitoring tools to ensure the high availability and security of business applications.

Core Responsibilities
  • Security Infrastructure Operation & Maintenance: Operate and maintain IDS systems, HBSS, and other security tools to ensure system performance and availability.
  • Security System Upgrades: Oversee system upgrades and ensure security components, including firewalls, HIPS, and antivirus solutions, are consistently updated.
  • Incident Management: Analyze security events and system anomalies; collaborate with incident response teams to mitigate and resolve threats.
  • Data Monitoring: Develop, maintain, and analyze dashboards, rules, and filters within HBSS to ensure effective detection and reporting of security events.
  • Security Documentation: Maintain detailed records of all HBSS system configurations, exceptions, firewall rules, and security incidents.
  • Monthly Status Report: Provide a comprehensive monthly status report on security infrastructure, maintenance, and upgrades.
  • Documentation: Create and maintain documentation of security systems, policies, procedures, and configurations, ensuring compliance with DISA standards.
  • Incident Reports: Document investigation progress and outcomes in Incident Response Tracker.
  • Training Materials: Develop written procedures and conduct on-site training for security tools and systems.

Qualifications
  • Experience: Minimum 3-7 years in security systems engineering or related field, with specific expertise in both Windows and Linux environments.
  • Security Clearance: Must hold TS/SCI clearance and PSD/Yankee White.

Certifications:
  • CEH, SSCP, RHCSA, MCITP (desired)
  • HBSS 201 Basic & 301 Advanced training preferred.

Physical Demands & Work Environment
  • Work Location: Naval Station Anacostia Annex, Washington, DC.
  • Work Hours: Standard full-time hours with potential for on-call duties during emergencies or critical incidents

Apply