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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Firmware - **Company:** CareerCircle - **Location:** Fort Meade, MD, United States - **Experience:** Expert - **Salary:** $131,300.0 - $237,350.0 - **Contract:** Permanent contract - **Skills:** Microsoft Access, Microsoft Excel, Microsoft Windows, Data Analysis, Application Layers, Microsoft Outlook, Network Analysis, Configuration Management, Signals Intelligence, Communications Protocols, Cyber Security, Information Systems, Computer Networks, Firmware, Hardware Security Module, Identity and Access Management, Information Security Management, IP Addressing, Intrusion Detection and Prevention, Information Systems Security Architecture Professional, Key Management, Knowledge Management, Microsoft Office, Microsoft Servers, Windows Servers, NetFlow, Network Monitoring, Packet Analyzer, Open Source Intelligence, Open Systems Interconnection (OSI), Peering, Software Maintenance, ArcSight SIEM Tool, Security Software, Software Engineering, Software Requirements Analysis, Software Systems, Systems Integration, Wireshark, Software Vulnerability Management, Windows Desktop, Network Switches, Network Routing, Data Processing, Computer Networking Systems, Computer Network Operations, Software Security, Mitre Att&ck, Virtual Environment, Malware, Cyber Threat Analysis, Firewalls (Computer Science), Information Technology, Cyber Warfare, User Identification - **Published:** August 7, 2026 - **Apply:** https://www.careercircle.com/jobs/all/all/usa/md/annapolis-junction/dccf8d41-5459-45f8-afb4-471e3b366896 ## About the Role * Bachelor of Science degree in Computer Science, Information Assurance, Information Security, or a related discipline, plus 12+ years of relevant experience. In lieu of a degree, an additional 4 years of experience may be considered on a case by case basis. * Industry Expertise: 7+ years of ISSO experience supporting IC or DoD programs and contracts of similar scope, type, and complexity. * Experience with customer Info Security tool suite * Certifications & Compliance: DoD 8570 compliance with IAM Level II or IAT Level III (CASP, CISSP, or Associate). * Clearance Requirement: Must hold an active TS/SCI with Polygraph., Network Routing Ancient History Network Switches Software Systems Security Policies Software Security Hardware Security Solution-Oriented Analytical Method Life Cycle Support Security Solutions Systems Integration Information Systems Network Engineering Operations Security User Identification Time Off Management Security Engineering Software Development Software Maintenance Signals Intelligence Information Assurance Information Processing Application Development Configuration Management Communications Protocols Vulnerability Management IAT Level II Certification IAM Level II Certification Computer Network Operations Information Systems Security Security Requirements Analysis, NetFlow Equities Dashboard Wireshark Operations Leadership Automation Mitigation Market Data Risk Analysis Cyber Defense Cyber Security Trend Analysis Packet Analyzer Ancient History Threat Detection Malware Analysis Network Analysis Application Layers Network Monitoring Information Systems Exploitation Techniques Vulnerability Management Open Source Intelligence Cyber Threat Intelligence Cyber Kill Chain Framework Standard Operating Procedure Open Systems Interconnection ArcSight Enterprise Security Manager ## Description Operations Innovation Purchasing Upskilling Market Data Cryptography Risk Analysis Key Management Ancient History Computer Science System Integrity Security Controls Security Policies Security Software Analytical Method Security Solutions Information Systems Traceability Matrix Time Off Management Security Engineering Signals Intelligence Emerging Technologies Information Assurance Configuration Management Vulnerability Management Risk Management Framework Authorization (Computing) IT Security Documentation IAM Level II Certification IAT Level III Certification Computer Network Operations Information Systems Security Continuous Improvement Process CompTIA Advanced Security Practitioner (CASP+) Certified Information Systems Security Professional Top Secret-Sensitive Compartmented Information (TS/SCI Clearance), Leidos has a new and exciting opportunity for a Senior Information Systems Security Officer (ISSO) in our Intelligence Sector, Cyber & Analytics Business Area (CABA). 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 Leidos Pay and Benefits , including 4 or more weeks 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!, The Senior 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 supports our customer site in Annapolis Junction, MD, focusing on the development, integration, deployment, and sustainment of cutting-edge large-scale collection systems. As part of this mission-critical contract, you will have the opportunity to work independently, innovate with emerging technologies, and contribute directly to national security. If you're passionate about solving complex security challenges and making a tangible impact, this is the role for you. Your greatest work is ahead!, * Enhancing security posture by supporting the program, organization, system, or enclave's information assurance initiatives and enforcing security policies, standards, and methodologies. * Overseeing security operations for information systems, managing daily security aspects, evaluating security solutions for classified processing, and conducting vulnerability and risk assessments for accreditation. * Managing configuration and system integrity by administering configuration management (CM) for security software, hardware, and firmware, ensuring compliance with security controls, and assessing the impact of system changes. * Developing and maintaining security documentation, including System Security Plans (SSPs), Risk Assessment Reports, Certification & Accreditation (C&A) packages, and System Requirements Traceability Matrices (SRTMs). * Ensuring compliance with security authorization activities following the Information System Certification and Accreditation Process (NISCAP) and DoD Risk Management Framework (RMF). * Providing technical expertise in security policies and operations, supporting the implementation and maintenance of security measures, and collaborating with stakeholders to strengthen the security posture. * Driving continuous improvement by assessing existing security processes, identifying vulnerabilities, and implementing proactive solutions to enhance system resilience., Operations Leadership Subnetwork Market Data Communication IP Addressing Microsoft 365 Cyber Defense Cyber Security Microsoft Excel Windows Servers Decision Making Microsoft Teams Windows Desktop Ancient History Microsoft Office Microsoft Access Cisco Networking Operating Systems Microsoft Outlook Microsoft Servers Policy Development Network Monitoring Information Systems Virtual Environment Knowledge Management Cyber Threat Intelligence IAT Level II Certification Interpersonal Communications Peering (Computer Networking) Top Secret-Sensitive Compartmented Information (TS/SCI Clearance) +0 Google Cybersecurity Senior Information System Security Officer Leidos Annapolis Junction, MD*On-Site Firewall Equities Operations Management Purchasing Upskilling Encryption Market Data Cryptography Key Management Security Tools ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Transforming Education: A Journey from interactive Markdown to Remote-Labs](https://www.wearedevelopers.com/videos/941-transforming-education-a-journey-from-interactive-markdown-to-remote-labs) - [Enhancing Workload Security in Kubernetes](https://www.wearedevelopers.com/videos/356-enhancing-workload-security-in-kubernetes) - [Cyber Sleuth: Finding Hidden Connections in Cyber Data](https://www.wearedevelopers.com/videos/893-cyber-sleuth-finding-hidden-connections-in-cyber-data) - [P2P networks in Blockchain](https://www.wearedevelopers.com/videos/209-p2p-networks-in-blockchain) - [Full Spectrum File Uploads](https://www.wearedevelopers.com/videos/870-full-spectrum-file-uploads) ## Related Articles - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks) - [Events like RSAC Get You CISOs. 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