jsig jobs in San Diego

Principal Computer Systems Analyst supporting classified government contracts, responsible for managing multi-user computer systems including Windows Server administration, Active Directory, Group Policy, and domain architecture design. The role involves system maintenance, patching, monitoring, compliance enforcement, backup/recovery services, and coordination across IT/Cyber teams.…See more Requires current Top Secret clearance, Security+ certification, and 3–9 years of experience depending on educational background.

ManTech seeks an Information System Security Officer to maintain Assessment & Authorization (A&A) documentation per NIST and DoD standards, track compliance deficiencies via Plans of Action and Milestones, implement continuous monitoring strategies, and oversee audit log systems and patch management. The role requires managing security tools, evaluating system configuration changes, and supporting an Information System Security Manager (ISSM) with compliance and incident response procedures.…See more Candidates must hold Security+ certification, have 2+ years of RMF and NIST SP 800-53 experience, and possess an active Top Secret clearance with SCI eligibility.

Computer Systems Analyst supporting classified government contracts, responsible for installing, upgrading, patching, and troubleshooting Windows systems and multi-user computer environments. Duties include managing Windows file systems, user accounts, permissions, security access lists, backup and recovery services, virus protection, and security audit logging on classified networks.…See more Must collaborate with network, software, and system engineers to isolate issues across hardware, firmware, operating systems, and applications, while adhering to strict information security guidelines and documenting findings for cybersecurity teams.

Principal Windows Systems Administrator supporting classified government contracts, responsible for maintaining multi-user Windows-based systems, Active Directory administration, Group Policy management, system compliance, backup/recovery services, and security audit logging. The role requires coordinating with system engineers, networking teams, and IT/Cyber management to ensure system reliability, apply patches and updates, troubleshoot cross-disciplinary issues, and maintain strict information security compliance.…See more Must hold a current Secret clearance and Security+ certification, with 3–9 years of relevant experience depending on educational background.

Associate Pathways Computer Systems Analyst supporting classified government contracts on information system lifecycle activities. The role involves resolving technical problems across hardware, software, networks, and telecommunications systems for internal customers; managing ticketing systems (ServiceNow, JIRA); and supporting multi-user computer environments under security policies.…See more Requires a Bachelor's or Master's degree, basic Windows Server OS knowledge, and ability to obtain a U.S. Government Systems Administrator certification (Cloud+, GICSP, GSEC, Security+, or SSCP) within 6 months.

Associate-level cybersecurity analyst supporting classified government information system lifecycle activities through security audits, continuous monitoring, and Assessment & Authorization (A&A) work. Responsibilities include conducting system and network security assessments, analyzing compliance with security controls and policies, supporting Security Test & Evaluation (ST&E) activities, and preparing Risk Management Framework documentation.…See more Requires a Bachelor's or Master's degree, current Secret clearance (or CE Program enrollment), and ability to obtain an IT Program Auditor certification (SecurityX/CASP+, GGRC, GSEC, GSNA, Sec+, or SSCP) within six months.

As an Information System Security Manager, you will oversee cybersecurity and operations of multiple classified systems, managing personnel and developing enterprise-wide RMF-based information security policies, standards, and procedures. You will maintain compliance with federal and DoD security standards, create and maintain System Security Plans, conduct continuous monitoring, perform risk assessments, and investigate security incidents.…See more You will coordinate with ISSEs, ISAs, and other security roles to design, procure, build, and accredit complex networks and systems across multiple classification levels. Required: Bachelor's degree in Information Security/IT or equivalent with 10+ years experience, DoD 8570.01-M IAM level III certification (CISSP, CISM, GSLC, or CCISO), RMF and NIST 800-53 expertise, and an active TS/SCI clearance.

This role supports cybersecurity and compliance efforts across the Risk Management Framework (RMF) process for DoD programs. Responsibilities include developing and maintaining system security documentation, Plans of Action and Milestones (POA&Ms), assessing security controls, conducting vulnerability scanning and audits, and ensuring continuous monitoring of systems compliance.…See more The position requires IAM Level I certification (DoD 8570.1M), 4+ years of information security or cybersecurity experience, and hands-on proficiency with compliance and vulnerability scanning tools such as Nessus, SCAP, ACAS, and SCC on Windows, Linux, and network devices.