Information System Security Officer (ISSO)
Barbaricum LLC
Barbaricum is a rapidly growing government contractor providing leading-edge support to federal customers, with a particular focus on Defense and National Security mission sets. We leverage more than 17 years of support to stakeholders across the federal government, with established and growing capabilities across Intelligence, Analytics, Engineering, Mission Support, and Communications disciplines. Founded in 2008, our mission is to transform the way our customers approach constantly changing and complex problem sets by bringing to bear the latest in technology and the highest caliber of talent.
Headquartered in Washington, DC's historic Dupont Circle neighborhood, Barbaricum also has a corporate presence in Tampa, FL, Bedford, IN, and Dayton, OH, with team members across the United States and around the world. As a leader in our space, we partner with firms in the private sector, academic institutions, and industry associations with a goal of continually building our expertise and capabilities for the benefit of our employees and the customers we support. Through all of this, we have built a vibrant corporate culture diverse in expertise and perspectives with a focus on collaboration and innovation. Our teams are at the frontier of the Nation's most complex and rewarding challenges. Join our team.
The Role
Our team members are subject matter experts in both cybersecurity and US Government policy. We’re excited about generating creative solutions to ambiguous security requirements. Our mission is deploying software in support of our customers' most critical needs as quickly as possible while upholding the government's trust. We achieve this through close consultation with stakeholders and direct ownership of the Authorization to Operate (ATO) process.
We're seeking dedicated and motivated individuals with Systems Administration, Software Development, or Systems Engineering backgrounds to join our team as an Information System Security Officer (ISSO). You will collaborate with other Palantir engineers to ensure security policies and settings are in place, build standardized security documentation, and generate evidence of compliance once settings have been applied.
Core Responsibilities
- Achieve ATOs for Palantir software across multiple government customers with minimal oversight.
- Partner with engineers to analyze software, interpret security requirements, and plan effective control implementations.
- Provide outstanding customer service, policy expertise, and high-quality documentation.
- Serve as the primary in-person point of contact for one or more U.S. Government customers on cybersecurity and compliance requirements and questions.
- Independently interpret the findings of vulnerability scanning utilities such as ACAS (Tenable Nessus) and SCAP (STIG benchmark) and manage a Plan of Actions and Milestones (POA&M) for remediation of findings.
What We Value
- Proficiency in interpreting and communicating government policy to a diverse audience.
- Ability to multitask under pressure, using time management and organizational skills.
- Specific experience working in both traditional on premises environments and cloud environments such as Amazon Web Services (AWS).
- Experience accrediting IT systems against U.S. Government standards including NIST SP 800-53, CNSSI 1253, and the DISA STIGs, using frameworks like DOD RMF, ICD 503, or DIACAP.
- Initiative in proactively identifying problems before they arise and creativity in proposing solutions.
What We Require
- Active U.S. DoD Top Secret clearance with SCI eligibility.
- Active DOD 8140 or 8570 Certification (e.g. CISSP or Security+).
- Active IAT II certification.
- Minimum 2 years experience directly supporting a customer’s ATO/RMF process.
- Proven experience using the eMASS or XACTA accreditation management software systems.
- Be at customer site 5 days per week.
- Ability to travel domestically and internationally 25% of the time if needed
EEO Commitment
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.
- ...digital age. TDI is looking for an ISSO who possesses an active Secret clearance... ...artifacts, SSPs, and related security documentation within eMASS to support... ...monitoring activities. Serve as the Information System Security Officer (ISSO) for assigned Joint Service Provider...SuggestedPermanent employmentLocal area
- We are seeking an experienced Information System Security Officer (ISSO) to support a federal client's CloudData Platform modernization initiative in Washington, DC. This role is responsible for ensuring the security, compliance, and continuous authorization of a Microsoft...SuggestedFixed term contract
- Information Systems Security Officer (ISSO) II Location: Joint Base Anacostia-Bolling (JBAB) DC Clearance: TS/SCI required with the ability to obtain CI poly The ISSO is responsible for ensuring the appropriate operational security posture is maintained for an information...SuggestedWork at office
$100k - $115k
Information System Security Officer (ISSO) PROPOSAL Location: Remote (U.S.-Based) Clearance Requirement: ACTIVE SECRET CLEARANCE REQUIRED Salary Range: $100,000 to $115,000 Who We Are RCG is a growing federal contracting company proudly Certified™ as a Great Place to Work...SuggestedRemote work- 93-01 - Information Systems Security Officer (ISSO) II Washington, United States | Posted on 05/29/2026 Sandy Mac Evolution LLC is a Veteran‑Owned company dedicated to connecting top talent with meaningful opportunities. Job Description Information Systems Security Officer...SuggestedContract work
- Summary Information System Security Officer (ISSO) - Arlington, VA - Chenega Military, Intelligence & Operations Support (MIOS) Chenega MIOS delivers essential technology services to support national security missions. Responsibilities Provide oversight for assigned...Remote work1 day per week
$70k - $145k
...USA. TestPros is dedicated to making lives better, safer and more secure. Start: Future projects late 2026 or 2027 (not an immediate job opening). Overview The Information System Security Officer (ISSO) supports the cybersecurity and compliance requirements of federal...Contract workFor contractorsWork experience placementInterim roleImmediate start$113k - $119.5k
Information System Security Officer (ISSO) I Security Clearance: Active TS/SCI (Must be able to obtain a CI Poly) Location: Crystal City, VA Job Type: Full-Time Target Salary Range*: $113,000 - $119,500. *This represents the potential salary range for this position...Full timeWork at office- ...senior-level cybersecurity certifications appropriate for ISSO and RMF roles, such as CISSP, CAP, CISM, or equivalent... ...of degree). Position Description PingWind is seeking an Information System Security Officer (ISSO) responsible for overseeing system-level cybersecurity...Temporary workFlexible hours
- ...referral program, and educational assistance. Additional details can be found on our website at: Position Title : DHS Information Systems Security Officer (ISSO) Senior Location : NCR Clearance : TS/SCI Qualified Parking Allowance : Employer may provide a monthly stipend...Full timeContract workWork at office
$120k - $200k
Information System Security Officer (ISSO) Employment Type: Full-Time, Mid-Level Department: Administrative and Logistics Support As a FSR ISSO, you will be embedded on-site with U.S. Government customers to ensure the secure, compliant operation of a production-grade...Full timeFlexible hours$97.24k - $118.56k
...Disabled Veteran Owned Small Business specializing in security and risk management. We are deeply familiar with DoD... ...competitive 401(k) savings plan. Watermark puts people first. Information Systems Security Officer II The ISSO is responsible for maintaining the operational...Hourly payContract workFor contractorsWork experience placementLocal area- ...today! JOB OVERVIEW The Senior ISSO plays a critical role in... ...and availability of sensitive information and systems within government agencies.... ..., and managing robust security solutions to safeguard digital... ...ENVIRONMENTAL CONDITIONS Inside office environment. Working on a...Work at officeLocal area
- SECURITY CLEARANCE REQUIREMENT: TS, WITH SCI ELIGIBILITY POSITION REQUIRES US CITIZENSHIP Position Title: Information System Security Officer (ISSO) II Location: Joint Base Anacostia-Bolling (JBAB) Position Description The ISSO is responsible for ensuring the appropriate...Work at office
- Information System Security Officer (ISSO) About Integrated Management Strategies (IMS) LLC We area women-owned small business and management consulting firm that provides an array of business and technical services. IMS is headquartered inthe Washington, D.C. metropolitan...Local areaFlexible hours3 days per week
- Information Systems Security Officer (ISSO) Department: CISO Office Employment Type: Full Time Location: North America Description Armis, the cyber exposure management and security company, protects the entire attack surface and manages an organization's cyber risk...Full timeWork experience placementWork at officeRemote work
$103.8k - $218.1k
## Information System Security Officer (ISSO)Washington, DC, USApply NowFind out how well you match with this jobJob ID327406Job Title: Information System Security Officer (ISSO)Job Category: SecurityTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee...Contract workWork experience placementFlexible hours- Security Clearance Requirement TS, WITH SCI ELIGIBILITY US Citizenship... ...Management to improve the Information Assurance (IA) posture of a... ...are seeking a Senior Cloud ISSO to carry out the following... ...Senior Cloud Information System Security Officer (ISSO) at a minimum, shall...Contract workWork experience placement
$120k - $160k
Description SAIC is seeking a Lead Information System Security Officer (ISSO) to support a critical U.S. government agency in the National Capital Region. This role serves as the primary business liaison and single point of contact for a portfolio of systems while overseeing...Work at office$127.94k - $186.6k
Overview Excella is seeking an Information Systems Security Officer (ISSO) to support a federal government customer. In this role, you will lead efforts to gather and organize technical information about the program’s security posture and collaborate across teams to support...Remote job$105.2k - $176.9k
SMX is seeking a highly experienced Information System Security Officer (ISSO) - Sr to support a mission-critical federal program in Washington, DC. This individual will serve as a senior cybersecurity professional and trusted advisor responsible for ensuring the security...Full timeContract workWork experience placementH1b$150k - $160k
...Amentum is searching for a Top-Secret cleared ISSO to join our team in Washington, DC. You... ...Serves as the principal advisor to the Information System Owner (SO), Business Process Owner, and the Chief Information Security Officer (CISO) / Information System Security...Hourly payContract workTemporary workWork experience placementLocal areaMonday to Friday$100k - $140k
A certified small business in Washington, DC, is seeking an experienced Information Systems Security Officer. The role involves creating and maintaining security policies, managing Information Assurance measures, and implementing security plans for federal systems. Candidates...Flexible hours$117.3k - $145.1k
...As an Information Systems Security Officer (ISSO) , you’ll be responsible for guiding government clients through the intricate process of obtaining and maintaining ATO certifications for their information systems. Responsibilities Leverage your expertise in government...Live inLocal area- Job Description Job Description Lead Information Systems Security Officer (ISSO) – Joint Base Anacostia-Bolling, Washington, D.C. – Active TS/SCI Clearance Required
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- ...GAMA-1 Technologies is seeking a Senior ISSO to support the security posture, compliance activities, and authorization efforts of federal IT systems and cloud environments. In this role,... ...~7+ years of cybersecurity or information security experience ~6+ years of experience...Local area
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$78.4k - $173.5k
Information Systems Security Officer (ISSO) - Senior Position Description CGI Federal has an exciting opportunity for an ISSO within our Intel sector advancing the national security mission through cutting edge technology. You must have a passion for keeping pace...Local area- ...Job Description Job Description Description: Job Title: Information System Security Officer (ISSO) Location: On-Site in Arlington, VA Department: Cyber Security Services Reports To: Management FLSA Status: Full Time/Non-exempt Description : Apavo...Full timeWork at officeLocal areaFlexible hours
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