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120 Leidos Security Systems Engineer Jobs Hiring Near You

Leidos

Systems Test Engineer

Vista, CA · On-site

$92K - $166K/yr

Leidos' Security Enterprise Solutions (SES) operation is seeking a Systems Test Engineer in Vista, CA to join our cross-functional engineering team using cutting edge technology to develop truly ...

Leidos

Systems Engineer

Washington, DC · On-site

$107K - $195K/yr

The Leidos Security and Engineering Programs (SEP) is seeking a Systems Engineer for the Center for Information Systems Security (CISS) program. This position requires the ability to work flexible ...

Leidos

Cybersecurity Systems Engineer

Linthicum, MD · On-site

$87K - $157K/yr

Leidos is seeking a Cybersecurity Systems Engineer to support a highly complex Information Assurance program. In this role, you'll work at the forefront of national security, ensuring advanced ...

Leidos

Cybersecurity Systems Engineer

Linthicum, MD · On-site

$107K - $195K/yr

Leidos is seeking a Cybersecurity Systems Engineer to support a highly complex Information Assurance program. In this role, you'll work at the forefront of national security, ensuring advanced ...

Leidos

Systems Engineer

Columbia, MD · On-site

$107K - $195K/yr

Leidos has a new and exciting opportunity for a Systems Engineer in our Intelligence Sector's Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering ...

Leidos

Systems Engineer

Columbia, MD · On-site

$107K - $195K/yr

Leidos has a new and exciting opportunity for a Systems Engineer in our Intelligence Sector's Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering ...

NRG Controls LLC

Security Systems Engineer

Oberlin, PA · On-site

Job Type Full-time Description Security Systems Engineer NRG Controls is seeking a talented Security Systems Engineer to join our Engineering team. This full-time role is ideal for professionals ...

MOSS

Security Systems Engineer

Zionsville, IN

Security Systems Engineer Location: Indianapolis, IN (Hybrid - Onsite Customer amp; Field Support) About MOSS MOSS is a fast-growing, family-owned technology integrator headquartered in Grand Rapids ...

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 ...

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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.

Principal Endpoint Security Systems Engineer

Leidos

Bethesda, MD • On-site

$131K - $237K/yr

Full-time

Retirement, PTO

Re-posted 24 days ago

Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 152 frontline employees who took The Breakroom Quiz

79th of 492 rated business services

Job description

Leidos has an exciting opportunity a Principal Endpoint Security Systems Engineer in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!
Job Summary
This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security Engineering team. The focus of this team member will be to design, deploy, maintain, and upgrade endpoint security capabilities, with opportunities for cross training on our other security tools. Working in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats.
Primary Responsibilities
  • Maintaining and upgrading the central management consoles (currently Trellix - ePolicy Orchestrator) on multiple isolated networks
  • Managing the integration of mission application servers (Linux and Windows) with the management console
  • Deploying malware protection software (currently Trellix Endpoint Threat Protection) updates and improved scan exclusion policies to mission application servers
  • Responding promptly to mission teams to successfully troubleshoot issues with integration (including cases where excessive real time malware scans are believed to be impeding mission performance)
  • Determine methods to automate and improve the performance of the endpoint security suite within a hybrid cloud/on-prem environment
  • Integrate endpoint security scan processes for integrated reporting via external tools (such as Splunk or AppDynamics)
  • Investigate findings of malware detected on mission application servers

Basic Qualifications
  • Experience with tools such as Trellix ePolicy Orchestrator and Trellix Endpoint Threat Protection
  • Experience with maintaining systems on Linux and Windows platforms
  • Ability to partner with mission application teams to jointly troubleshoot issues with endpoint security integration
  • Experience with incident detection, incident response and forensics activities
  • Strong attention to detail with analytical mind and outstanding problem-solving skills
  • Bachelor's degree with at least 12 or more years relevant experience. Additional years of experience may be substituted in lieu of a degree.
  • To be considered must have an active TS/SCI with polygraph security clearance

Preferred Qualifications
  • Experience with Cisco Secure Endpoint (formerly AMP for Endpoints) or other endpoint security tools
  • Experience with Cloud Computing Technologies/Amazon Web Services (AWS)
  • Experience integrating endpoint security tool findings with external products such as Splunk or AppDynamics
  • Experience with managing endpoint security across on-prem and cloud environment boundaries
  • Experience with additional cyber security tools and processes such as Splunk, Rapid7, SolarWinds, Cisco IDS/IPS, VPN, WebInspect, AppDetective

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.
#CABARESTON
#ASBA
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:
January 21, 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 $131,300.00 - $237,350.00
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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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

Social media

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