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Leidos

91 Leidos Security Controls Assessor Jobs Hiring Near You

Leidos

Cybersecurity ISSE

Beavercreek, OH · On-site

As part of the Leidos Cybersecurity Engineering Team, the Cybersecurity Information System Security ... Translate cybersecurity requirements, NIST SP 800-53 controls, RMF objectives, customer ...

Leidos

Cybersecurity ISSE

Beavercreek, OH · On-site

$87K - $157K/yr

As part of the Leidos Cybersecurity Engineering Team, the Cybersecurity Information System Security ... Translate cybersecurity requirements, NIST SP 800-53 controls, RMF objectives, customer ...

Leidos

Cybersecurity ISSE

Beavercreek, OH

As part of the Leidos Cybersecurity Engineering Team, the Cybersecurity Information System Security ... Translate cybersecurity requirements, NIST SP 800-53 controls, RMF objectives, customer ...

Leidos

Security Manager

Beavercreek, OH · On-site

$82K - $149K/yr

Leidos is seeking an experienced Security Manager to provide senior-level security management ... Conduct security inspections, self-assessments, audits, and compliance reviews while implementing ...

Leidos

Security Manager

Beavercreek, OH

$82K - $149K/yr

Leidos is seeking an experienced Security Manager to provide senior-level security management ... Conduct security inspections, self-assessments, audits, and compliance reviews while implementing ...

Leidos

Cybersecurity Specialist

Beavercreek, OH · On-site

$107K - $195K/yr

Assess, document, and report on the cybersecurity posture of various systems. * Develop and ... Creating a framework for integrating security measures and controls into the design and ...

Leidos

Cybersecurity Specialist

Beavercreek, OH

$107K - $195K/yr

Assess, document, and report on the cybersecurity posture of various systems. * Develop and ... Creating a framework for integrating security measures and controls into the design and ...

Leidos

Mechanical Modeling Engineer

Dayton, OH · On-site

$87K - $157K/yr

Leidos has an immediate & exciting opportunity for a TS/SCI cleared Mechanical Modeling Engineer in ... Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO ...

Leidos

Mechanical Modeling Engineer

Dayton, OH · On-site

$87K - $157K/yr

Leidos has an immediate & exciting opportunity for a TS/SCI cleared Mechanical Modeling Engineer in ... Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO ...

Leidos

Kinetics Sr Software Engineer

Beavercreek, OH

$107K - $195K/yr

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people ... Implement and optimize code for performance, security, and memory efficiency * Write robust ...

Leidos

MBSE Modeling and Simulation Engineer

Dayton, OH · On-site

$87K - $157K/yr

Leidos is hiring a Model Based Systems Engineer (MBSE) Modeling and Simulation Engineer with an ... Assess capabilities of foreign space systems and C4ISR air systems. * Incorporate space and air ...

Leidos

Modeling and Simulation Engineer

Dayton, OH

$69K - $125K/yr

Leidos is hiring a Modeling and Simulation Engineer with an active TS/SCI clearance at Wright ... Find, review, and assess available intelligence data to drive modeling decisions * Test and ...

Leidos

Modeling and Simulation Engineer

Dayton, OH · On-site

$69K - $125K/yr

Leidos is hiring a Modeling and Simulation Engineer with an active TS/SCI clearance at Wright ... Find, review, and assess available intelligence data to drive modeling decisions * Test and ...

Leidos

Kinetics Sr Software Engineer

Beavercreek, OH · On-site

$107K - $195K/yr

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people ... Implement and optimize code for performance, security, and memory efficiency * Write robust ...

Leidos

MBSE Modeling and Simulation Engineer

Dayton, OH · On-site

$87K - $157K/yr

Leidos is hiring a Model Based Systems Engineer (MBSE) Modeling and Simulation Engineer with an ... Assess capabilities of foreign space systems and C4ISR air systems. * Incorporate space and air ...

Leidos

DCO Counter-Measures Engineer

Whitehall, OH · On-site

$107K - $195K/yr

Leidos' Digital Modernization sector has a current job opportunity for a Defensive Cyber Operations ... Assess the effectiveness of countermeasures on an ongoing basis and revector actions as needed.

Leidos

Flight Dynamicist

Beavercreek, OH · On-site

$107K - $195K/yr

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 ...

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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 here.
67% of people say they often feel stressed 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 Controls Assessor jobs?

What are the most popular jobs at Leidos?

What are the most popular categories at Leidos?

Infographic showing various Security Controls Assessor 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.

Cybersecurity ISSE

Leidos

Beavercreek, OH • On-site

Full-time

Re-posted 5 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 495 rated business services

Job description

Looking for an opportunity to make an impact?
Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. 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 sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
Are you ready for your next career challenge?
The Non-Kinetic Effects Business Area, part of the Defense Sector at Leidos, currently has an opening for a cleared Cybersecurity Information System Security Engineer (ISSE) to work in our Beavercreek, OH near Wright Patterson AFB. This is an exciting opportunity to use your experience helping the Air Force Research Lab, Air Force Lifecycle Management Center, and other DoD missions. Your role will be to support our diverse portfolio of programs through a combination of software design and development, hardware interfacing and integration, laboratory experimentation, ground and flight testing to deploy cutting edge, next generation solutions.
Primary Responsibilities:
As part of the Leidos Cybersecurity Engineering Team, the Cybersecurity Information System Security Engineer (ISSE) will serve as a cybersecurity engineering contributor responsible for designing, integrating, assessing, and maturing cybersecurity solutions across mission systems, software/hardware designs, lab environments, and operational test configurations. The ISSE will work closely with system owners, software engineers, hardware engineers, network engineers, test teams, ISSMs, and program leadership to ensure cybersecurity requirements are engineered into system architectures, implemented through technical controls and secure configurations, validated through testing, and documented in support of RMF authorization activities.
  • Engineer cybersecurity solutions into mission systems, software applications, networks, lab environments, and integrated hardware/software platforms throughout the system lifecycle.
  • Translate cybersecurity requirements, NIST SP 800-53 controls, RMF objectives, customer requirements, and mission needs into implementable technical designs, configurations, and verification methods.
  • Develop, review, and maintain cybersecurity architecture artifacts, including security design descriptions, network/security boundary diagrams, data flow diagrams, control implementation details, interface descriptions, and system hardening approaches.
  • Support cybersecurity design decisions for tactical networking and communications environments, including boundary protection, segmentation, authentication, encryption considerations, logging visibility, and performance or storage tradeoffs in constrained environments.
  • Partner with software, hardware, network, and systems engineering teams to design and implement secure configurations, authentication and authorization mechanisms, logging/auditing, encryption, boundary protections, vulnerability mitigations, and secure system interfaces.
  • Support secure system integration in Software Integration Laboratory and test environments, including Linux system hardening, scripting/automation, vulnerability remediation, tool integration, and security configuration management.
  • Perform technical security assessments of systems, components, and configurations to identify design gaps, implementation weaknesses, vulnerabilities, and cyber risk; recommend and implement engineering-based remediation plans.
  • Lead or support vulnerability management activities, including interpreting Tenable Nessus, SCAP, STIG, ACAS, or similar scan results; validating findings; developing technical fixes; coordinating remediation with engineers; and verifying closure.
  • Design and implement mitigations for vulnerabilities discovered during system scans, security audits, integration events, ground testing, and flight-test preparation.
  • Support implementation and validation of security controls, including documenting how controls are technically satisfied, identifying residual risk, and providing objective evidence for RMF authorization packages.
  • Participate in design reviews, engineering review boards, configuration control boards, cyber risk reviews, and test readiness events to ensure cybersecurity considerations are addressed before system deployment.
  • Develop or contribute to cybersecurity test procedures, security verification methods, risk assessments, and technical inputs for RMF artifacts, POA&Ms, system security plans, and authorization documentation.
  • Assess cybersecurity events, anomalies, and system deficiencies to determine technical impact, root cause, mission risk, and corrective actions.
  • Collaborate with ISSMs, ISSOs, system owners, and customer stakeholders to align technical cybersecurity implementation with program compliance, authorization, and operational objectives.
  • Support continuous improvement of cybersecurity engineering practices, including automation, secure configuration baselines, vulnerability remediation playbooks, and repeatable lab/test environment security processes.

Basic Qualifications:
  • Bachelor's degree in computer science, IT, cybersecurity or closely related field with 4+ years of experience in the Cybersecurity ISSE technical/professional discipline. An additional 4 years of experience may be considered in lieu of a degree
  • Must be a US Citizen
  • Must have an active DoD Top Secret clearance with the ability to obtain and maintain TS/SCI
  • Possess a Security+ 8570 certification
  • Experience working in a Software Integration Laboratory environment
  • Strong understanding of Linux systems. Ability to write bash scripts and alter Linux security configurations
  • Strong understanding of information security and cybersecurity policies, principles, and practices in the delivery of all IT services
  • Well versed in the understanding and implementation of security controls within the NIST SP 800-53A
  • Experienced with policies and procedures to ensure information systems confidentiality, integrity, and accessibility
  • Experience in risk and vulnerability assessments of information systems to identify vulnerabilities, risks, and protection needs
  • Experience in documenting system deficiencies and recommending solutions for remediation
  • Familiar with automated vulnerability scans using Tenable Nessus, SCAP, or other similar applications
  • Experience with participating in security evaluations, audits, and reviews
  • Be able to learn and apply new technologies, tools, and engineering practices that support ISSE responsibilities, including secure system design, security control implementation, vulnerability remediation, system hardening, and cybersecurity test/validation activities. Strong desire to grow and learn new technologies
  • Ability to communicate effectively in writing and verbally from informal one-on-one discussions or in a small group environment
  • Ability to work within a dynamic work environment, ability to handle multiple tasks at once (multi-task)

Preferred Qualifications:
  • Familiar with Agile Methodologies, preferably SCRUM or Kanban
  • Experience with Atlassian tools such as JIRA, Confluence, Bitbucket
  • Experienced with Splunk, Tenable Nessus, SCAP applications and tools
  • Experience supporting airborne, tactical networking, C2/C3/C4ISR, battle-management, embedded, or other integrated mission-system environments
  • Experience engineering centralized audit logging, syslog, SIEM, or network security monitoring solutions using tools such as Splunk, Elastic, Security Onion, Zeek, Suricata, rsyslog, syslog-ng, auditd, or similar
  • Familiarity with DoD cryptographic protection concepts, including COMSEC, TRANSEC, key management, secure communications interfaces, and data-at-rest protection

NKE
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:
July 17, 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 $87,100.00 - $157,450.00
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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