security jobs in San Diego

Software Engineer I will develop and maintain secure, scalable software applications using Python and JavaScript in DoD classified and unclassified environments, implementing DevSecOps practices, CI/CD pipelines, and DISA STIG compliance. The role requires leading secure software development with embedded cybersecurity controls, designing modern web interfaces and APIs (REST, SOAP, GraphQL), and managing database architectures.…See more Candidates must hold an active Secret clearance, a Bachelor's degree with 4+ years of IT/software engineering experience, and IAT II certification (CySA+, Security+, CCNA-Security, GSEC, or SSCP). The position emphasizes Agile/Scrum methodologies, containerization (Docker, Kubernetes), object-oriented design, and cross-functional collaboration within a DoD environment.

Senior Systems Engineer leading infrastructure design and integration on Department of Defense programs. Must demonstrate depth in enterprise networking, virtualization/hyperconverged infrastructure, or storage architecture, with working knowledge of DoD cybersecurity compliance (STIGs, eMASS, RMF).…See more Responsible for taking infrastructure from current-state assessment through design, build, test, and customer acceptance, producing engineering documentation and coordinating with OEMs and technology partners. Active Secret clearance required.

The Network Engineer IV delivers advanced tactical network engineering, integration, and sustainment for the Navy's carrier training system (CANES architecture), ensuring reliable data transport, system interoperability, and secure performance. The role maintains, configures, and troubleshoots shipboard and afloat network hardware and software, supports Fleet training readiness exercises, and provides hands-on technical leadership across NIWC Pacific and shipboard IT teams.…See more Responsibilities include system updates, patching, virtualization management, cybersecurity compliance (RMF, STIG, HBSS/ACAS), and functional/performance testing with occasional underway periods. The engineer must hold or obtain an active Secret clearance (TS/SCI preferred), possess DoD 8570 IAT Level II and CCNA/CCNP certifications, and demonstrate expertise in Linux, Windows Server, Cisco IOS/NX-OS, Juniper JUNOS, and infrastructure automation.

Design, configure, and sustain mission-critical networked systems using Cisco, Aruba, Juniper, and specialized hardware. Support end-to-end lifecycle activities including staging, integration, testing, fielding, and sustainment of DoD networks.…See more Implement secure architectures aligned with RMF and STIGs, perform system hardening and vulnerability remediation, and troubleshoot networks in labs, shore facilities, and deployed environments. Requires 8+ years of hands-on network engineering experience, DoD Secret clearance, and a DoD 8570/8140 baseline certification (Security+ CE minimum).

As a Linux Systems Automation Engineer, you will design and maintain enterprise-scale RHEL infrastructure, developing Python scripts and Ansible playbooks for automation, monitoring, and security compliance. You will manage virtualized environments (KVM, QEMU, Proxmox), implement STIGs and hardening measures, and support containerized workloads.…See more The role requires 5+ years of RHEL administration, 3+ years of Python automation experience, and hands-on expertise in configuration management, security compliance, and virtualization technologies.

Design and own the end-to-end orchestration architecture for a command-and-control decision-support system (ASSIST), connecting multiple services, models, and simulations into integrated tactical applications. Define service interfaces, data-flow patterns, and standards for invoking models as services; guide prototyping of tactical decision applications integrated with MTC2 and GCCS APIs.…See more Establish architecture for scalable, distributed processing across hundreds of units and set the technical roadmap for deployment to classified networks under the Risk Management Framework. Requires 10+ years of software/systems engineering with 5+ recent years in architecture on command-and-control or decision-support systems, active DoD Secret clearance with SIPRNET access, and DoD 8570/8140 IAT/IASAE Level II or III certification.

ManTech seeks a Systems Administrator to support national security infrastructure in San Diego, maintaining Windows servers, domain controllers, cloud resources, and VMware environments. The role combines network and systems administration, including configuring cryptographic network encryptors (TACLANE), troubleshooting site outages, performing vulnerability remediation with ACAS/Nessus, and managing user accounts.…See more Requires a Bachelor's degree with 4+ years of IT experience (or equivalent), DoD 8570 IAT Level II compliance, and 2+ years as a Network or Systems Administrator with enterprise Windows infrastructure expertise. Travel up to 25% and an active Top Secret/SCI clearance with polygraph eligibility are required.

Systems Engineer II to deploy, manage, and monitor Red Hat OpenShift clusters in on-premises U.S. Government environments.…See more Responsibilities include cluster health monitoring, troubleshooting application and node errors, configuring security policies and user access controls, and performing updates and backups. Requires 1+ years of OpenShift experience, 3–5 years of Linux administration with in-depth Kubernetes knowledge, and a bachelor's degree in a quantitative field or equivalent experience.

Sr. Systems Engineer supporting the Navy's Key Management project portfolio, leading system engineering, hardware, and software analysis to develop systems meeting customer requirements.…See more Responsibilities include defining and applying systems engineering processes, managing requirements through decomposition/allocation/verification/validation, developing system architecture and CONOPS, leading technical discussions, and writing comprehensive technical documentation. Requires 8+ years of experience with model-based systems engineering, database management (MySQL, Oracle, SQL Server), Linux/UNIX, Agile methodologies, and DoD 8570 security certification.

Design, implement, and sustain Cisco ISE/NAC solutions for Navy shipboard networks, including 802.1X authentication, policy enforcement, and endpoint profiling. Develop automation tooling using Ansible and Powershell to support network sustainment and upgrades across multiple CANES-based configurations.…See more Evaluate and implement security hardening (STIGs) on network appliances, troubleshoot Cisco platforms (routers, switches, firewalls, wireless), and support Engineering Change Requests within Agile/DevOps practices. Requires 3+ years of network/systems engineering experience, preferably with DoD or Navy program support, and an active Secret clearance.

The successful candidate will develop web services, full-stack web applications, and persistence layers in an Agile Scrum environment, applying secure software development principles and clean coding practices aligned with S.O.L.I.D standards. Responsibilities include collaborating with software, systems, information assurance, test, and QA engineers while setting and driving adoption of Test Driven Development practices.…See more The role requires 4+ years of relevant experience with web technologies (HTML, CSS, JavaScript), UI frameworks (React, Angular, Ionic, Qt, etc.), automated testing tools (Selenium, Cucumber), and CI/CD tooling. An active Secret clearance is required, and DoD 8570 approved security certification (Security+) must be obtained within 90 days of hire.

Applications Software Engineer on a cybersecurity and cryptographic key management product suite, developing full-stack web applications and web services in an Agile Scrum environment. The role involves secure software development, test-driven development (TDD), continuous integration, and automated testing across tactical mobile and enterprise web platforms.…See more Requires 8+ years of relevant experience, an active Secret clearance, and expertise in web technologies (HTML, CSS, JavaScript), frameworks (React, Angular, Node.js), testing tools (Selenium, Cucumber), and DevOps/CI practices.

This role provides engineering sustainment support for shipboard networks, including troubleshooting, configuration management, and security hardening across Cisco ISE/NAC platforms in Navy environments (CANES). The engineer will develop automation tooling using Ansible and PowerShell, implement STIGs and security policies, lead network baseline upgrades, and manage Engineering Change Requests within DevOps and Agile workflows.…See more Requires 3–5 years of network/systems engineering experience with DoD or Navy programs, active Secret clearance (TS/SCI preferred), Security+ or CCNA certification, and hands-on expertise in Cisco routers, switches, firewalls, and wireless infrastructure.

Network Automation Engineer supporting DoD/Navy shipboard network deployments. Implement and sustain Cisco ISE/NAC solutions with 802.1X, MAB, AAA, RADIUS, TACACS+, and TrustSec policies.…See more Develop automation tooling via Ansible playbooks and PowerShell scripts for network sustainment. Troubleshoot Cisco platforms (routers, switches, firewalls, wireless, AnyConnect) within CANES environments, evaluate and mitigate STIGs, process ECRs, and collaborate on change management within Agile/DevOps practices.

ManTech seeks a Systems Administrator to maintain critical national security enterprise infrastructure in San Diego, working a 0100–0900 morning shift with on-call support. Responsibilities include administering Windows servers, domain controllers, cloud resources, and VMware environments; configuring and troubleshooting TACLANE cryptographic network encryptors; performing patch management, vulnerability remediation (ACAS/Nessus), and system hardening; and managing user accounts and ticketing incidents.…See more Requires a bachelor's degree with 4+ years of IT experience (or equivalent substitution), DoD 8570 IAT Level II compliance (Security+ CE or equivalent), 4+ years of enterprise Windows infrastructure design/deployment, and hands-on TACLANE encryptor experience. Up to 25% travel (CONUS and OCONUS) is required.

This role provides engineering sustainment and support for fielded shipboard networks, with a focus on Cisco ISE/NAC solutions, network security (STIGs), and automation. The engineer will troubleshoot and maintain multiple Cisco platforms (routers, switches, firewalls, wireless), develop Ansible playbooks and PowerShell scripts for network automation, and support Navy CANES and related environments.…See more The position requires hands-on experience with Cisco ISE, network security fundamentals, automation tooling, and familiarity with Agile/DevOps practices and change management workflows.

A ServiceNow Developer will lead the migration of legacy Oracle APEX applications to ServiceNow at Naval Base San Diego, performing hands-on development using Flow Designer, JavaScript, REST/SOAP, and Mid-Servers. The role includes building custom applications on ServiceNow App Engine, configuring ITSM modules, designing RBAC and field-level security, and integrating Navy IAM protocols (CAC, MFA).…See more The developer will conduct knowledge transfer to government system administrators and lead agile Scrum ceremonies while maintaining a zero-disruption migration timeline. This is a full-time on-site government contract role requiring an active Top Secret clearance and U.S. citizenship.

Network engineer responsible for designing, configuring, and sustaining mission-critical networked systems for DoD/government customers. Will engineer Cisco, Aruba, Juniper, and other switching/routing/firewall platforms; support full system lifecycle from staging through fielding and sustainment; implement secure architectures aligned with RMF and STIGs; and conduct site surveys, deployments, and troubleshooting in labs, shore facilities, and deployed environments.…See more Requires minimum 8 years of hands-on network engineering experience, DoD Secret clearance, relevant vendor certifications (CCNA/JNCIA or higher), and DoD 8570/8140 baseline security certification (Security+ CE minimum).

Network engineer providing advanced engineering, integration, and sustainment support for Navy AT/FP systems across global installations. You will engineer, configure, and sustain Juniper, Aruba, Cisco, and Cambium networking equipment; support end-to-end system lifecycle from staging through fielding; implement secure architectures aligned with RMF and STIGs; and conduct site surveys, installations, and operational verification during 50%+ travel.…See more Requires active interim Secret clearance with ability to obtain fully adjudicated clearance, Bachelor's degree with 5 years' experience (or HS/GED with 8 years), DoD 8570/8140 baseline certification, and hands-on experience with Juniper Junos, Aruba, and Cisco platforms.

Cloud Security Engineer III responsible for designing, implementing, and maintaining security controls across the company's infrastructure with a focus on AI/ML platforms. The role involves monitoring AI/ML systems for anomalous behavior, identifying and remediating vulnerabilities in ML pipelines, and collaborating with data scientists to implement secure AI/ML solutions.…See more Requires 8+ years of security engineering experience, 3-5 years of AWS cloud security expertise, AWS Security Certification, and foundational knowledge of ML lifecycle and AI/ML security concepts.

Senior Staff Engineer responsible for designing and building an MLOps platform that supports distributed AI training, reinforcement learning, and foundation model development at scale. You will architect Kubernetes-native infrastructure for GPU workloads, design self-service AI development workflows, manage the data and model lifecycle, and lead platform distribution across cloud, on-premises, and air-gapped environments.…See more The role requires deep expertise in modern AI frameworks (PyTorch, Hugging Face Transformers), distributed systems, GPU scheduling, and cloud-native infrastructure, with a focus on enabling researchers and engineers to move from experimentation to production rapidly.

Lead the full system development lifecycle for government programs, from requirements analysis and design through verification, validation, and sustainment. Manage requirements decomposition, allocation, and traceability; define system architecture and CONOPS using Model Based Systems Engineering (MBSE) methodologies; identify and mitigate technical risks associated with secure hardware; and produce comprehensive technical documentation.…See more Participate in customer meetings and technical interchanges; requires 12+ years of systems engineering experience, a Bachelor's degree in Systems Engineering or related field, and demonstrated expertise in requirements management, MBSE, the V-model, and Risk Management Framework (RMF) on medium-to-large DoD programs.

Software Engineer II supporting Navy METOC systems, responsible for maintaining and developing fielded software systems, firmware, and engineering development models. Duties include software maintenance, patch deployment automation, security compliance (DISA STIGs, C&A processes), vulnerability management, and system hardening.…See more Requires 3+ years software engineering experience, Navy tactical systems familiarity (preferably CANES), Windows/Linux administration, scripting (PowerShell, Bash, Python), and DoD 8570 IAT Level II or Security+ CE certification.

SAIC seeks a Network Engineer to support U.S. Navy cyber operations, providing engineering and technical support for the CND Deployer Toolkit and Defensive Cyber Operations Infrastructure.…See more Responsibilities include production integration, system design and architecture, DCO enclave technology implementation, interoperability testing, RMF compliance, site surveys, and Sensor2 system installations at Navy facilities. The role requires hands-on experience with Juniper SRX firewalls, Cisco routers/switches, IPsec/VPN tunnels, network design, and cybersecurity standards (STIGs, Security Controls); a Secret clearance, IAT Level II certification (Security+), and CCNA/CCNP/Network+ are mandatory.

A Systems Network Engineer II/III role supporting naval and operational network environments, responsible for designing, implementing, and troubleshooting resilient network architectures while ensuring cybersecurity compliance and risk mitigation. The engineer will assess vulnerabilities, document configuration and design changes at line-level detail, coordinate engineering change and cyber authorization processes, and provide both on-site shipboard support and remote technical guidance.…See more The role requires expertise in network architecture, tactical data links, WAN design, cybersecurity policy, and Assessment & Authorization practices, with coordination across cloud, computer engineering, cybersecurity, and operational teams.