Unleash Your Potential At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer’s success. We empower our teams, contribute to our communities, a…
Skills: Risk Management Framework, ICD-503, XACTA, NIST, DoD Security Policies
Seeking a PPSM Analyst with experience in information systems security, networking/infrastructure, ports, protocols, services, boundary protection, and technical risk analysis. The analyst will maintain PPS Registry info…
Skills: Information systems security, Networking, Infrastructure, Ports, protocols, and services, Boundary protection
Senior Systems Engineer (Hardware Engineering) (Onsite)
Alexandria, Virginia, United States · On-site
$87k–$165k/yr
Senior$200K raised
Date Posted: 2026-08-28 Country: United States of America Location: US-VA-ALEXANDRIA-7900-CUST ~ 7900 Telegraph Rd ~ 7900-CUST (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status R…
Skills: Systems engineering, SATCOM operations, Fault isolation, Procedure development, Data collection
Description Quantum Sky is searching for a Functional Area Analyst IV to take on a role as part of a team providing support to the Office of the Secretary of War, Cost Assessment and Program Evaluation (CAPE), Joint Data…
Skills: Functional Analysis, PPBE, Data Modeling, SQL, Modeling and Simulation
Make an impact supporting the Department of War (DoW) and the United States Marine Corps (USMC)! Lynch Consultants is seeking a Financial Statement Accountant with a solid understanding of USMC financial reporting and Ge…
Skills: Financial reporting, General ledger accounting, Data analytics, Audit readiness, Reconciliation
Overview The Institute for Defense Analyses (IDA) is a Federally-Funded Research and Development Center supporting the Department of War (DOW) and other federal agencies. IDA’s mission is to provide objective analyses of…
ServiceNow Business Process Analyst - MUST BE LOCAL TO WASHINGTON DC
Alexandria, Virginia, United States · On-site
$100k–$110k/yr
Mid level
DirectViz Solutions, (DVS) is a rapidly growing government contractor that provides strategic services that meet mission IT needs for government customers. DVS provides innovative information technology solutions to gove…
Skills: ServiceNow, Business process analysis, Service Catalog, Workflow automation, Agile development
Leidos is seeking a Senior SharePoint System Administrator to support a large enterprise IT contract for the DOD. The SharePoint System Administrator will support infrastructure services, operations, and maintenance acro…
Date Posted: 2026-08-28 Country: United States of America Location: US-VA-ALEXANDRIA-7900-CUST ~ 7900 Telegraph Rd ~ 7900-CUST (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status R…
Skills: Model Based Systems Engineering, MBSE, Digital Engineering, Cameo, Rhapsody
Mechanical Engineer-in-Training (EIT) - New Graduate
Alexandria, Virginia, United States · Hybrid
$78k–$102k/yr
Entry level
Are you ready to turn your Mechanical Engineering degree into real-world design experience? Wiley|Wilson, a 100% employee-owned architecture and engineering firm, is looking for a new graduate to join our Mechanical Engi…
Clearance:TS/SCI Eligibility Required Location: Fort Belvoir, VA Description PingWind is seeking a highly qualified Collective Training Subject Matter Expert (SM:E) to support an opportunity with the Department of War. T…
gTANGIBLE Corporation (gTC), www.gtangible.com, is an S corporation and a registered Government contractor that provides services and solutions in: National Security Programs Professional, Administrative, and Management …
Skills: Recruiting, Talent Management, Government Contracting, Cleared Personnel, LinkedIn Recruiter
Leidos Intelligence Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ …
Are you ready to turn your Civil Engineering degree into real-world design experience? Wiley|Wilson, a 100% employee-owned architecture and engineering firm, is looking for a new graduate to join our Civil Engineering te…
Skills: Civil engineering, Site design, Stormwater management, Civil 3D, Calculations
BayNova is seeking an experienced and highly motivated Database Administrator to join our team in support of a mission-critical federal government client in a remote / work from home role. This opportunity is for DBA tec…
Skills: PostgreSQL, SAP ASE, Database Administration, Linux, Performance Tuning
Kearney & Company Cybersecurity Analyst will play a key role in safeguarding the organization’s data by designing, implementing, and maintaining information protection and data loss prevention (DLP) controls across…
Skills: Microsoft Purview, Data Loss Prevention, Information Protection, Azure Active Directory, Conditional Access
SHR Consulting Group, LLC is a small business delivering enterprise IT, cybersecurity, and program management services to the Department of Defense and federal civilian agencies. We support mission-critical infrastructur…
Do you have what it takes to help expand the importance of mental health and the value of relationships? The American Association for Marriage and Family Therapy is looking for a dedicated self-starter and quick learner …
SHR – Software Hardware Re-engineered SHR is a premier technology integrator solving our nation’s most complex modernization and readiness challenges across the defense, federal civilian, and intelligence mar…
Skills: AI architecture, MLOps, Cloud computing, Python, AWS Sagemaker
ANSER
Preparedness and Emergency Management Analyst
Alexandria, Virginia, United States · On-site
$74k–$108k/yr
Mid level
Company Overview: ANSER enhances national and homeland security by strengthening public institutions. We provide thought leadership for complex issues through independent analysis, and we deliver practical, useful soluti…
Skills: Emergency management, Homeland defense, National security, Research, Analysis
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
$108k–$195k/yr
Full-time
bachelor degree
Posted 15d ago
~40 hrs/week
Responsibilities
The ISSO will manage and maintain Authority to Operate (ATO) documentation and security packages within the XACTA system for enterprise IT contracts. They are responsible for coordinating vulnerability remediation, monitoring security controls, and ensuring compliance with DoD and Intelligence Community directives.
Requirements
Candidates must possess a bachelor's degree with at least 8 years of relevant experience and hold an active TS/SCI clearance with polygraph. A DoD 8140.03 compliant certification, such as Security+ CE or CISSP, is required to meet the technical security standards.
Full job description
Unleash Your Potential
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer’s 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.
If this sounds like an environment where you can thrive, keep reading!
The Mission
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 Requirement
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:
Bachelor's degree in a technical field with at least 8 years of prior relevant experience or Masters with 6 years of prior relevant experience. 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 $107,900.00 - $195,050.00
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.
An industry & technology leader serving government & commercial customers with smarter, more efficient innovations
Industry
Defense and Space Manufacturing
Company size
10,001+ employees
Founded
1969
Headquarters
Reston, Virginia
LinkedIn followers
588,152
Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
Offices: 1750 Presidents St, Reston, Virginia 20190, US · 11955 Freedom Drive, Reston, VA 20190, US · 1145 N 2nd St, Leavenworth, KS 66048, US · 9600 Great Hills Trail, Austin, TX 78759, US · 221 3rd St, Newport, RI 02840, US
How much do Government & Public Sector jobs in Alexandria, VA pay?
Based on 442 listings with disclosed salaries, most government & public sector jobs in Alexandria, VA pay between $65k–$180k per year. Individual offers vary with seniority, company size, and specialization.
How many Government & Public Sector jobs are open in Alexandria, VA right now?
There are currently 666 open government & public sector positions in Alexandria, VA listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Government & Public Sector roles in Alexandria, VA?
Companies currently hiring include Booz Allen Hamilton, Kearney & Company, Leidos, ANSER, CACI International Inc, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Government & Public Sector jobs in Alexandria, VA?
Yes — 236 of the 666 open government & public sector positions offer remote or hybrid work (53 remote, 183 hybrid).
How do I apply for Government & Public Sector jobs in Alexandria, VA?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.