Senior ISSO
$25kLeidos
Description
Leidos has a new and exciting opportunity for a Senior Information Systems Security Officer (ISSO) in our INTEL Sector . 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:
Our program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact. Click to learn more about how this program “Delivers Mission Success!”
Seeking a self-starting, motivated individual to be the Information System Security Officer supporting Computer Network Operations with maintaining compliance and strengthening the security posture of critical mission systems via the Risk Management Framework; will be responsible for 6 System Security Plans (SSPs).
Qualified candidates are eligible for enhanced incentives including up to a $25K cash sign on bonus or a paid time off bonus.
Job Responsibilities/Qualifications:
- Mission Focus: Ensure the appropriate operational security posture is maintained for information systems. Support continuous monitoring of networks to detect and correct areas of security non-compliance, unmitigated vulnerabilities, and other risks. Follow consistent security processes and play a role in the information systems continuous monitoring program. Perform regular audits of information systems. Assist the information systems security manager in preparing the information system for periodic reaccreditation
- Technical Proficiency: Experience as an ISSO with emphasis on Defense-in-Depth principles, network, and enterprise security architecture. Experience applying the principles of the NIST 800-53 including the procedures in the Risk Management Framework (RMF). Familiarity with STE/STN requirements and associated tools and tradecraft.
- Qualifications: Bachelor's degree plus eight (8) years of relevant experience or master’s degree plus six (6) years of relevant experience. An associate’s degree or 18 semesters hours of military coursework/training in a computer-related field plus 10-years of relevant experience or high school diploma/GED plus 12-years of relevant experience may be considered. Information Assurance Manager (IAM) Tier 1 certification (CAP, Security + CE, GSLC).
- Desirable Skills: Excellent written and oral communication skills
- Security Clearance: Active TS/SCI with Polygraph required to be considered for this role.
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!
Careers.leidos.com
CONMD
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 17, 2026For 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 - $195,050.00The 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.
About Leidos
Leidos is an industry and technology leader serving government and 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit .
Pay and Benefits
Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at .
Securing Your Data
Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at .
If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the .
Commitment to Non-Discrimination
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. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
- ...Mid/Senior-Level Cybersecurity (RMF ISSO) Location: DC area (2 to 3 days/week Washington Navy Yard) Required Clearance: Secret Salary: Negotiable Overview: Seeking an experienced Cybersecurity Analyst to support Advanced Radars programs for PEO IWS 2.0....Senior2 days per week3 days per week
$150k
...to multiple branches of the US government and military services. Senior Information System Security Officer Responsibilities Enhancing... ...considered on a case by case basis. Industry Expertise: 7+ years of ISSO experience supporting IC or DoD programs and contracts of...SeniorWork at officeFlexible hours$126k - $228k
...Senior Information System Security Officer (ISSO) Leidos currently has an opening for a Senior Information System Security Officer (ISSO) to work at our Annapolis Junction, MD location. The selected candidate will act as an ISSO for a large software development program...Senior- ...Job Description Job Description What You Will Do: At Independent Software, as a Senior Information System Security Officer (ISSO), you will support the security posture of mission-critical systems, programs, and enclaves. In this role, you will implement, maintain...Senior
- ...professional experience in cybersecurity, information assurance, or systems security engineering Minimum of ten or more years of ISSO or equivalent experience supporting Department of Defense or Intelligence Community programs of similar scope, type, and complexity...Senior
- ...Job Description Job Description Senior Information Systems Security Officer (ISSO) Location: Anne Arundel County, Maryland Clearance: TS/SCI with Full Scope Polygraph We are seeking a highly experienced Senior Information Systems Security Officer (ISSO)...SeniorTemporary workLocal areaImmediate startFlexible hours
$149.6k - $254.32k
...leader in defense and aerospace, dedicated to securing the future of human exploration and national safety. We are seeking a seasoned ISSO to take ownership of the security and integrity of some of the most critical information systems. As a cornerstone of the...SeniorFull timePart timeLocal area$155k - $195k
...19, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking an experienced Information Systems Security Officer (ISSO) for a large software development program. The program includes software maintenance and development, IT support (Network/Workstation...SeniorContract workWork experience placementFlexible hours$10k
...additional 4 years of experience may be considered on a case by case basis. Direct Experience: 10+ years of in-depth experience as ISSO or combination of ISSO and other security related role supporting IC or DoD programs and contracts of similar scope, type, and...SeniorHourly payFull timeContract workTemporary workWork experience placementSummer workImmediate start- MEDSTAR HEALTH seeks a Senior Interventional Radiology Technologist to provide advanced IR imaging and procedural support in a fast-paced hospital setting. You will perform complex fluoroscopic and image-guided vascular and nonvascular procedures, scrub and circulate with...Senior
- ...The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, MD is seeking a highly technical Senior Systems Engineer to assess, design, and prototype next-generation hypersonic and reentry systems, contributing to national defense capabilities. You will lead...Senior
$72.28k - $108.16k
TD Bank is seeking a Senior Finance Analyst for the Mount Laurel, New Jersey location, offering a hybrid work model. The role involves conducting financial analysis, providing financial support, and advising management on various finance processes. The ideal candidate...Senior- ...Job Description Job Description Please NOTE: Full Scope Poly is required for this role. Senior Information System Security Officer (ISSO) The selected candidate will act as an ISSO for a large software development program which includes software maintenance and...Senior
$131.8k - $290k
...CACI International Inc. is looking for a Senior Systems Engineer based in Laurel, MD, to shape technical solutions and lead design activities. The role requires direct collaboration with stakeholders and commitment to mission-critical systems. You will utilize over 14...Senior- Amazon Web Services, Inc. is seeking a Principal AI & Emerging Tech Specialist in the MD/Jessup area to accelerate government missions through AI and emerging technologies. You will work with AWS sales teams to identify mission-driven use cases for generative AI, ML, and...Senior
- The Johns Hopkins University Applied Physics Laboratory is seeking a Linux System Administrator to join the RF Engineering group. In this role, you will manage and secure Linux systems within classified environments. Your responsibilities will include maintaining infrastructure...Senior
- ...Alliance Material Handling is seeking an experienced Senior HR Generalist to act as a trusted partner to leadership and lead day-to-day HR activities. The role covers employee relations, benefits, compensation, policy administration, and compliance across multiple locations...Senior
$146k - $234k
...A national security company based in Laurel, Maryland, is seeking a Senior Cloud & Distributed Systems Engineer. The role focuses on administering and optimizing large-scale distributed systems, particularly Hadoop and Accumulo. Candidates should have at least 7 years...Senior- ...A leading technology firm in Maryland is seeking a Senior AI Software Engineer to develop user-focused AI solutions. The position requires deep software engineering experience, proficiency in modern programming languages, and must include TS/SCI clearance. The role involves...Senior
- Australia-Employment is seeking a Staff Accountant to join our dynamic Accounting + Finance team in Jessup, MD. This key position focuses on AI billing, collections, and financial reporting, playing a vital role in our financial health. The ideal candidate should have ...Senior
- Rivet is seeking a Project Manager in Laurel, Maryland. The role involves managing construction projects for the United States Secret Service at the James J. Rowley Training Center. Candidates should have at least 10 years of project management experience and a four-year...Senior
- ...Shield Consulting Solutions seeks a senior System Engineer in Laurel, MD, to support complex, secure environments requiring TS/SCI with polygraph. This full-time role focuses on enterprise Linux, automation, and virtualization platforms. The ideal candidate has extensive...SeniorFull time
- ...A leading financial services company is seeking a Senior Developer to enhance their real-time payments technology. This role involves application design, team leadership, and the development of solutions while maintaining a focus on quality and innovation. The ideal candidate...Senior
- ASR INTERNATIONAL in Laurel, Maryland, seeks an experienced Project Manager for construction and service projects. Candidates will oversee construction-related activities, coordinate schedules, and draft technical responses for change orders. The ideal candidate has over...SeniorFlexible hours
- The Johns Hopkins Applied Physics Laboratory (APL) is seeking an Ontologist to work on innovative solutions for national security challenges. In this role, you will collaborate with software engineers and data scientists to build and evaluate ontologies that bridge critical...Senior
- The Johns Hopkins University Applied Physics Laboratory (APL) is seeking a Cyber and Information Systems Security Analyst to design and operate national security systems within classified environments. You will join a team of cybersecurity specialists dedicated to supporting...Senior
- Shield Consulting Solutions, Inc. is seeking a highly experienced System Engineer with an active TS/SCI w/ Polygraph clearance. The role expects Linux and Windows server administration, automation using Puppet and Ansible, and strong scripting in PowerShell, Python, and...SeniorRemote work
- Power3 is seeking a Principal Systems Administrator (Linux) in Laurel, MD to join our infrastructure team. You will manage Linux VMs across OpenStack, AWS, and VMware environments, emphasize VM security, and work with DevOps tools like Ansible and Rancher to keep clusters...Senior
- ...Omniscius Consulting is looking for an experienced Senior Systems Administrator in Laurel, MD, to manage and support the lifecycle of mission-critical applications. The ideal candidate will have strong backgrounds in Windows and Linux administration, cloud infrastructure...Senior
- Strategic Alliance Business Group (SABG) is looking for a Project Manager to support facility engineering operations at the US Secret Service James J. Rowley Training Center in Laurel, Maryland. The role entails oversight of construction-related activities and project ...SeniorContract work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior ISSO. Be the first to apply!
- senior manager tax Annapolis Junction, MD
- senior devops Annapolis Junction, MD
- senior international accountant Annapolis Junction, MD
- senior vmware engineer Annapolis Junction, MD
- senior resident engineer Annapolis Junction, MD
- senior performance engineer Annapolis Junction, MD
- senior storage engineer Annapolis Junction, MD
- senior cloud solutions architect Annapolis Junction, MD
- senior director diversity & inclusion Annapolis Junction, MD
- senior cloud engineer Annapolis Junction, MD


