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Isso In Jobs in Washington, DC (NOW HIRING)

Leidos

ISSO

Alexandria, VA · On-site

They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF ... The ISSO will promote security best practices, identify and articulate process improvement and ...

Leidos

ISSO

Alexandria, VA · On-site

$87K - $157K/yr

They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF ... The ISSO will promote security best practices, identify and articulate process improvement and ...

Leidos

ISSO

Alexandria, VA

The ISSO will be responsible for reviewing and maintaining existing Authority to Operate (ATO ... They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF ...

Leidos

ISSO

Alexandria, VA · On-site

The ISSO will be responsible for reviewing and maintaining existing Authority to Operate (ATO ... They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF ...

Leidos

ISSO

Alexandria, VA · On-site

The ISSO will be responsible for reviewing and maintaining existing Authority to Operate (ATO ... They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF ...

Leidos

ISSO

Alexandria, VA · On-site

$107K - $195K/yr

The ISSO will be responsible for reviewing and maintaining existing Authority to Operate (ATO ... They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF ...

Bart & Associates

Senior ISSO

Mclean, VA · On-site

Senior ISSO At B&A, we foster and embrace a distinct set of values that we live by and instill in ... B&A believes in ensuring its employees feel deeply connected to B&A, recognizing successes and hard ...

Piper Companies

ISSO

Dulles, VA · On-site

$100K - $130K/yr

As an ISSO, you will play a critical role in ensuring the security and compliance of the customer's critical systems. If you have a strong background in information security, compliance, and ...

HumanIT Solutions

ISSO

Linthicum Heights, MD · On-site

The ISSO will ensure compliance with the DoD Risk Management Framework (RMF) and NIST 800-37 ... Participate in security incident response, reporting, and remediation efforts. * Collaborate with ...

Zermount, Inc

ISSO PROGRAM MANAGER (PgM)

Arlington, VA · On-site

The ISSO PM is expected to provide advisory in securing enterprise information and systems, by determining security requirements; planning, designing, implementing, and testing systems and security ...

Zermount, Inc

ISSO PROGRAM MANAGER (PgM)

Arlington, VA · On-site

The ISSO PM is expected to provide advisory in securing enterprise information and systems, by determining security requirements; planning, designing, implementing, and testing systems and security ...

Leidos

Information Systems Security Officer

Annapolis, MD · On-site

$107K - $195K/yr

The ISSO plays a vital role in securing and maintaining the integrity of our information systems through robust security measures and compliance frameworks. This multi-year, high-impact program ...

Zermount, Inc

ISSO Program Manager (PgM)

Arlington, VA · On-site

The ISSO PM is expected to provide advisory in securing enterprise information and systems, by determining security requirements; planning, designing, implementing, and testing systems and security ...

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Isso In information

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$134K

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How much do isso in jobs pay per year?

As of Jun 28, 2026, the average yearly pay for isso in in Washington, DC is $134,016.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,600.00 and $156,300.00 per year, depending on experience, location, and employer.

Is isso an entry level position?

Isso In is typically considered an entry-level position, suitable for individuals with minimal prior experience. It often involves basic tasks and may require some training or familiarity with specific tools or procedures. The role is designed to provide foundational skills and opportunities for career growth.

What job makes $10,000 a month without a degree?

High-paying jobs that can reach $10,000 a month without a degree include roles such as sales managers, real estate brokers, or skilled trades like electricians and plumbers, especially with experience and certifications. Success in these fields often depends on skills, performance, and networking rather than formal education.

What does isso stand for?

In the context of the job title Isso In, 'ISSO' typically stands for Information System Security Officer, a role responsible for managing and implementing security policies within an organization. The position often requires knowledge of cybersecurity, risk management, and security frameworks such as NIST or ISO 27001.

Is Isso a good career?

Isso In is a role that typically involves technical skills and industry-specific knowledge. Its suitability as a career depends on individual interests, skill development, and job market demand in the relevant field. Like many careers, growth opportunities and job stability can vary based on experience and industry trends.
What are popular job titles related to Isso In jobs in Washington, DC? For Isso In jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Isso In jobs in Washington, DC look for? The top searched job categories for Isso In jobs in Washington, DC are:
Isso In jobs near you
Infographic showing various Isso In job openings in Washington, DC as of June 2026, with employment types broken down into 2% As Needed, 38% Full Time, 46% Part Time, and 14% Contract. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $134,016 per year, or $64.4 per hour.
ISSO

ISSO

Leidos

Alexandria, VA • On-site

Full-time

Posted 26 days ago

Leidos rating

8.4

Company rating: 8.4 out of 10

Based on 147 frontline employees who took The Breakroom Quiz

56th of 430 rated business services

Job description

Leidos is seeking an Information System Security Office (ISSO) to support a large enterprise IT contract for the DOD. The ISSO will be responsible for reviewing and maintaining existing Authority to Operate (ATO) documentation throughout the sustainment portion of the system lifecycle. They will utilize the XACTA system to update documentation in the Risk Management Framework (RMF) System Security Package (SSP), verify systems are operating in their intended manner, and validate administrator permissions and access to systems under their purview
This role requires an individual that is familiar with security accreditation frameworks and directives (e.g. NIST, RMF, Common Criteria, DoD, and Intelligence Community Directives (ICDs)) and works to mitigate risks by applying security controls effectively to maintain an acceptable degree of operational risk across multiple enclaves in an enterprise environment. The ISSO will promote security best practices, identify and articulate process improvement and procedures updates, and conduct testing and assessments to sustain required accreditations. Additionally, the ISSO
will assist with tracking, documenting, and remediating vulnerabilities identified by the customer's Cyber Security division and direct remediation efforts for system administrator staff, provide status updates to government and program leadership, and update relevant RMF packages as required.
Primary Tasks
  • Author, review, and update accreditation packages and supporting documentation to maintain existing ATO state for all systems operating in the production environment that follow all government, IC, DoD, DISA, NIST, or industry standards and policies
  • Review documentation provided by the customer's Engineering division as part of the initial ATO package to validate all documents are available and useable in their current state
  • Maintain SSPs and related configuration records in customer's XACTA system and Service Now or other CMDB tool
  • Develop, monitor, and update Plan of Action & Milestones (POA&Ms) to document open risks and vulnerabilities through remediation or mitigate
  • Can work independently as well as collaboratively to drive security process improvements to streamline the process, increase the security posture of the enterprise, and ensure due diligence at all times
  • Comfortable communicating officially and unofficially via briefings, meetings, emails, or other collaboration technologies, with Leidos program leadership and government leadership
  • Has in-depth understanding of information security technical principles, theories, concepts and their application across a range of enterprise services and systems
  • Coordinates all A&A renewal activities with the DAO, DAOR, or other representatives from the Cyber Security division to maintain proper accreditation throughout the life of the system
  • Review, update, and maintain CONOPs, Disaster Recovery, and other required plans for each system to reflect the evolving enterprise
  • Coordinate with System Administrators and other operations and engineering staff to remediate all vulnerabilities and report results to the Cyber Security division.
  • Document, track, and obtain approvals for open vulnerabilities that cannot be remediated through the use of POA&Ms, Risk Acceptance requests, or other customer-mandated processes and forms
  • Mentor coworkers, system administrators, program and government leadership on evolving security best practices and potential impacts on production systems

Basic Qualifications
  • Candidates should demonstrate the following:
  • Practical experience understanding and applying ICD-503 Risk Management Framework
  • Experience with XACTA to track, document, and validate accreditation packages
  • Understanding of DoD and IC security policies and mandates
  • Experienced with reviewing existing ATO documentation, identifying missing or outdated information, and coordinating with relevant support teams to obtain necessary information
  • Time management skills
  • Strong oral and written communication skills
  • Track record of working effectively individually, with peers, and with outside support elements
  • Experience with IT Service Management (ITSM) products such as ServiceNow or Remedy.

Clearance:
  • Due to the nature of the government contracts we support, US Citizenship is required.
  • TS/SCI with Polygraph required for Position OR TS/SCI and willingness to obtain and maintain a polygraph.

Education and Experience:
  • BS degree and 4+ years of prior relevant experience in order to operate within the scope contemplated by the level. Additional years of experience may be considered in lieu of degree.
  • Candidate must, at a minimum, meet DoDM 8140.03 (previously DoD 8570) - IT System Admin Intermediate certification requirements (Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher)

Preferred Qualifications
  • Active Certified Information Systems Security Professional (CISSP) or ISACA Certified Information Security Manager (CISM)

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:
June 22, 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

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