dns jobs in San Diego

The Cybersecurity Analyst owns Bumble Bee's day-to-day security operations, investigating and responding to incidents, hunting threats, and tuning detection tooling to close coverage gaps. Responsibilities include managing the full incident response lifecycle, optimizing SIEM platforms, conducting vulnerability assessments, performing access control audits, and building incident response playbooks and procedures.…See more The role requires 4+ years of cybersecurity experience, proficiency with SIEM platforms, EDR tools, vulnerability management platforms, and hands-on knowledge of Windows/Linux, networking, and the MITRE ATT&CK framework. Success demands both technical operations expertise and cross-functional collaboration to strengthen security posture, ensure compliance, and assess third-party cyber risk.

Software Integration Engineer responsible for designing, developing, and deploying a hybrid container/virtualization platform-as-code solution supporting enterprise-scale workloads across on-prem and cloud environments. The role involves integrating core platform services (identity, PKI, DNS, logging, monitoring, secrets management), configuring container runtimes and networking, and developing infrastructure-as-code automation.…See more Requires 9+ years of experience (or equivalent with advanced degree) with cloud platforms, Kubernetes, virtualization, DevSecOps practices, CI/CD tooling, and automation frameworks, plus the ability to mentor junior engineers and collaborate across security, platform, and application teams on compliance, incident response, and AI/ML workload enablement.

Senior Principal System Administrator responsible for managing and maintaining a classified development and integration test environment, including Windows and Red Hat Enterprise Linux servers, VMware virtualization infrastructure, and network hardware. The role requires strong Linux and Windows Server administration expertise, cybersecurity compliance knowledge (DISA STIGs, Nessus, PKI), and experience supporting classified networks.…See more Responsibilities include patching workflows, ePO/McAfee integration, vulnerability scanning, system accreditation support, and maintaining DoD-mandated security posture; some after-hours support for maintenance and incident response required.

Senior systems administrator responsible for managing installation, configuration, updates, monitoring, and troubleshooting of enterprise and tactical IT infrastructure. Lead security hardening efforts aligned with CMMC and DISA STIG standards, vulnerability remediation, backup/recovery procedures, and network infrastructure including routers, firewalls, and VPNs.…See more Provide technical leadership to teams of administrators and coordinate across cybersecurity, engineering, and program stakeholders. Support tactical data pipelines, containerized workloads, and edge server environments.

This is a senior infrastructure and cybersecurity engineering role requiring 10+ years of experience designing, administering, and securing hybrid/cloud infrastructure across Linux, Windows Server, containerized, and private cloud environments. The engineer will implement security controls aligned with NIST SP 800-53, DISA STIGs, RMF, and Zero Trust principles, support DevSecOps pipelines and CI/CD automation, and use scripting, configuration management, and Infrastructure as Code to streamline builds, patching, hardening, and compliance.…See more The role demands collaboration across cybersecurity, software, infrastructure, and mission teams to troubleshoot complex issues, improve security practices, and communicate technical risks and recommendations.

Design, develop, and deploy a hybrid container/virtualization platform serving enterprise workloads across on-prem and cloud environments. Integrate core platform services (identity, PKI, DNS, logging, monitoring, secrets management) and support GPU-enabled AI/ML workloads.…See more Establish CI/CD pipelines, Infrastructure-as-Code automation, and standard operating procedures for configuration management, verification, and patch management. Lead cross-functional teams on containerization, DevSecOps, incident response, and ATO compliance efforts.

As an AWS Cloud Security Engineer, you'll conduct hands-on security assessments and engineering for enterprise AWS environments, reviewing Organizations, accounts, landing zones, IAM, networking, and security services to identify gaps and strengthen cloud posture. You'll work with AWS-native services (IAM, CloudTrail, GuardDuty, Security Hub, KMS, etc.), develop Terraform Infrastructure as Code, establish secure configuration baselines, create security policies and guardrails, and translate technical requirements into scalable, repeatable solutions.…See more You'll collaborate with cloud architects, security engineers, platform teams, and client leadership to deliver implementation-ready documentation and cloud governance improvements. The role requires 3+ years of AWS cloud engineering, cloud security, or DevSecOps experience, with hands-on expertise in multi-account AWS environments, VPC networking, security monitoring services, and Infrastructure as Code.

Design, develop, and deploy a hybrid container/virtualization platform supporting enterprise-scale workloads across on-prem and cloud environments. Own infrastructure automation, CI/CD integration, monitoring, security compliance, and platform service integration (identity, PKI, logging, secrets management).…See more Collaborate with cross-functional teams on incident response, vulnerability remediation, and mentorship of junior engineers in cloud-native and containerization best practices.

Principal Systems Administrator role managing enterprise Windows Server and Linux environments, including Active Directory, virtualization (VMware/Horizon), cloud identity (Azure AD), and endpoint security. Requires 7+ years of systems administration experience, CompTIA Security+ certification or DoD 8570 IAT Level II equivalent, and ability to obtain a US Secret clearance.…See more The role combines hands-on administration with mentorship, technical documentation, and Tier 1–2 escalation support, including automation via PowerShell, Bash, or Python.

Security Operations Analyst role monitoring and triaging alerts across endpoint, cloud, identity, network, and SaaS using enterprise SIEM and XDR platforms. Responsibilities include investigating alerts, performing root-cause analysis, tuning detections, owning initial response for mid-tier incidents, participating in on-call rotation, running targeted threat hunts, and contributing to playbooks and post-incident reviews.…See more Requires 2–5 years of hands-on SecOps, SOC, or incident response experience; proficiency with enterprise SIEM query languages, EDR tooling, and scripting in Python/PowerShell/Bash; and solid understanding of MITRE ATT&CK and network fundamentals.

Enterprise System Administrator III responsible for managing hybrid Microsoft Windows and Unix server environments, including on-premises and cloud infrastructure. Will install, configure, and maintain servers, storage systems, backup systems, and directory services while using modern AI-enabled tools for infrastructure automation and deployment.…See more Requires 6+ years of system administration experience, proficiency with Microsoft 365, Azure, AWS, Active Directory, VMware virtualization, and scripting languages like PowerShell.

Senior Systems Engineer responsible for designing, implementing, securing, and optimizing enterprise Microsoft 365 and Azure environments for government and commercial clients. You will architect and deploy M365 services (Exchange Online, SharePoint, Teams, Intune, Entra ID) and Azure infrastructure (VMs, networking, storage, AVD, monitoring), lead cloud migrations and hybrid identity configurations, and develop security baselines and Zero Trust policies.…See more The role requires advanced PowerShell scripting, Infrastructure-as-Code practices, troubleshooting complex identity and cloud issues, and mentoring junior engineers while collaborating with security teams and stakeholders.

This role supports cybersecurity engineering and infrastructure security for enterprise, cloud, and classified environments. The engineer will manage vulnerability assessment, system hardening, patching, secure configuration, and DevSecOps pipeline integration across Linux and Windows Server platforms.…See more Responsibilities include compliance support (RMF, ATO, NIST SP 800-53, DISA STIGs), CI/CD security automation, containerized environment hardening, and infrastructure-as-code implementation. Strong technical depth in cloud platforms (AWS/AWS GovCloud), container orchestration, security tooling, and the ability to communicate complex technical and compliance issues to engineering and mission stakeholders are required.

Senior systems administrator responsible for providing technical guidance and coordination across infrastructure, security, and engineering teams in a mission-focused environment. Will mentor administrators and end users, document technical solutions, and lead issue resolution across Windows/Linux systems, virtualization, networking, and cloud platforms.…See more Requires extensive experience in enterprise/government IT infrastructure, system hardening, cybersecurity compliance (CMMC, DISA STIG), and strong communication with technical and non-technical stakeholders.

This Systems Administrator II role supports containerized and cloud-based infrastructure for a defense-focused technology company. The administrator will maintain system documentation, configuration records, software inventories, and license tracking while supporting both Windows and Linux environments, networking infrastructure, and cybersecurity hardening.…See more Required experience includes Linux command-line proficiency, system configuration and troubleshooting, networking protocols (TCP/IP, DNS, DHCP, VPNs, firewalls), and cybersecurity practices. Preferred qualifications include containerization technologies (Docker, Kubernetes), edge computing hardware, cloud platforms (AWS, Azure), shell scripting, and tactical systems support.

SAIC seeks an experienced Sr Systems Administrator to manage Windows and Linux servers, Azure cloud services, M365, and on-premises infrastructure for a public sector client. The role requires hands-on administration of IaaS/PaaS services, Active Directory, Exchange, VMware, backup/recovery, and security—with 24/7 on-call rotation support.…See more The ideal candidate will have 5+ years of server administration experience, strong troubleshooting skills, and certifications in Azure or Windows Server administration.

This Systems Administrator role supports Trulioo's IT infrastructure across global locations, managing Mac and PC endpoint provisioning and patching via Jamf and Intune, administering identity platforms (Google Workspace, Azure/Entra ID, OneLogin), and providing day-to-day SaaS platform support including email security (Mimecast) and basic network troubleshooting (Meraki). The role requires 2+ years of IT support or systems administration experience, hands-on familiarity with endpoint management and identity/access tools, and the ability to manage tickets, maintain documentation, and support new-hire onboarding across time zones.…See more The candidate will use AI tools to enhance efficiency and contribute to continuous process improvement.

Senior Infrastructure & Security Engineer responsible for administering and securing Microsoft 365, Azure, and Entra ID environments, including identity controls, conditional access, and MFA enforcement. The role encompasses data protection through DLP policies and Microsoft Purview, endpoint security via CrowdStrike, Windows Server and Active Directory infrastructure, virtualization (VMware, Azure), backup/disaster recovery, and establishing governance standards for AI platforms.…See more Requires 7+ years of progressive IT infrastructure and security experience with strong expertise in Microsoft cloud services, identity management, and enterprise networking.

Lead detection operations, incident response, and security operations maturation for a growing security team. Operate SIEM/XDR across endpoint, cloud, identity, network, and SaaS telemetry; conduct complex investigations; tune detections; and drive root-cause analysis and post-incident improvements.…See more Require 6+ years of hands-on security operations, detection engineering, or incident response experience with deep proficiency in SIEM/XDR query languages, EDR platforms, scripting (Python, PowerShell, Bash), and MITRE ATT&CK framework application. Mentor analysts, define playbooks and runbooks, lead threat hunts, and own SecOps metrics and operational-readiness reporting.

Design, deploy, and maintain enterprise Windows Server infrastructure with expertise in Active Directory, authentication systems (Kerberos, RADIUS, PKI), and DoD-compliant hardening (STIGs, CIS, Zero Trust). Develop Infrastructure-as-Code automation using PowerShell, Python, and Ansible across Windows and Linux environments, manage SCCM/MECM patch deployment and WSUS, and architect virtualized environments on KVM and EC2.…See more Mentor engineering teams on system integration, security, and cross-domain interoperability, and collaborate with cybersecurity, network, and Linux teams to solve complex enterprise deployment challenges.

The Systems Administrator II maintains and supports IT infrastructure integrity, availability, and performance for a DoD contract environment. Key responsibilities include Active Directory administration (ADUC, DNS, GPO, WSUS), PKI credential management, system maintenance, software/hardware upgrades, troubleshooting, and compliance monitoring via DISA STIGs.…See more The role requires a Bachelor's degree in IT or related field, 3+ years of relevant experience, and an IAT Level II certification (CySA+, Security+, CCNA Security, GICSP, GSEC, or SSCP).

Network Engineer II designs, maintains, and troubleshoots ICW Group's multi-vendor network infrastructure, including LAN, WAN, MPLS, SAN fabric switches, server load balancers, and VoIP systems. Provides 3rd tier technical support, works with security and project teams to mitigate network risks, and ensures compliance with ITIL and regulatory standards.…See more Requires a Bachelor's degree in Computer Science or related field, minimum 5 years of networking experience, CCNA or JNCIA certification (CCNP or JNCIS preferred), and hands-on expertise with Juniper networking devices, VMware virtualization, routing protocols, and firewall administration.

Hands-on IT Infrastructure/System Administrator for a diagnostic company, responsible for maintaining network security, availability, and reliability in a one-person IT environment. Duties include workstation management, end-user support, firewall and backup administration, cybersecurity training, and collaboration with headquarters IT on infrastructure projects.…See more Requires 5+ years of IT experience and proficiency with infrastructure tools such as Office 365, MS SQL Server, VMware, DNS, firewalls (SonicWall, Barracuda), and backup solutions.

As an IT Support Engineer I, you will provide technical support and implement solutions for computer hardware, operating systems, and enterprise applications in a high-availability environment. You will troubleshoot and resolve IT infrastructure issues, manage local technical projects, and maintain corporate networking and computing systems.…See more The role requires hands-on experience with Windows Server technologies (AD, DFS, Print Services, SCCM), networking protocols (DNS, DHCP, TCP/IP, SSL), and multi-user environments. You will work across PC repair, deployment, network engineering, and systems administration while interacting with management and staff to improve IT solutions.

The Senior Systems Administrator designs, implements, and maintains enterprise IT infrastructure across cloud, endpoint, identity, server, and collaboration platforms. Responsibilities include administering Windows, Linux, and macOS systems; managing Active Directory, Azure AD/Entra ID, and endpoint platforms like Intune and JAMF; optimizing system performance and reliability; and developing automation scripts.…See more This role requires 5+ years of enterprise infrastructure experience, advanced knowledge of Microsoft identity and collaboration services, and acts as a technical lead for infrastructure projects while mentoring junior administrators.