11 senior security engineer jobs found

Description We are seeking a skilled Security Engineer with extensive experience in vulnerability remediation at the operating system (OS) level to join our IT team on-site in Washington, D.C. The ideal candidate will be responsible for ensuring the security and integrity of our cloud infrastructure by identifying, assessing, and mitigating vulnerabilities. This role requires a deep understanding of cloud services, operating system vulnerabilities, and best practices for securing cloud environments that are hosting a variety for MS Windows, and Linux (Red hat, Ubuntu, Amazon) operating systems. Key Responsibilities: Identify and remediate vulnerabilities in cloud infrastructure, with a specific focus on OS-level threats across multiple cloud platforms, including compliance with STIG and CIS benchmarks. Collaborate with the cybersecurity team to conduct regular security assessments, vulnerability scans, and penetration tests to identify potential weaknesses....

Description The Senior SharePoint Designer/Administrator will support the Vanguard 2025 contract in the Network Technologies office of US Department of State. The SharePoint Designer/Administrator will report to the Vanguard Program Management Office and will assist in the daily application management, administration, and project-oriented support of relevant frontend SharePoint tenant environments and Power Platform workspaces. This is not a backend infrastructure/architecture/hardware/server administrator position. This role is primarily remote, but candidate must be located within the Washington, DC metro area to report into the office (Washington, DC or Springfield, VA) as needed on short notice. Description of Duties: Designs and implements tools and technologies to promote knowledge management and collaboration within the organization Serve as point of contact and Tier 1-3 support for Microsoft SharePoint Online service requests Perform routine and complex...

Description As a CyberArk Senior Systems Engineer, you'll play a key role in enhancing our cybersecurity and identity management capabilities. You'll coordinate with external stakeholders, including DHS CISA integrators, to implement the Identity Lifecycle Management (ILM)/Mandatory User Re-Authentication (MUR) solutions at the Department of Transportation (DOT). This involves integrating DOT's SailPoint infrastructure with the ServiceNow environment and maintaining the ILM solution across development, testing, and production environments. Your responsibilities will also include: Supporting ILM workflows for Privileged Account Management (PAM) tools and Active Directory (AD), building new system connections, and maintaining Continuous Diagnostics and Mitigation (CDM) Dashboard integrations. You'll be responsible for deploying software updates, reporting on SailPoint IdentityIQ operations, and supporting the identification and remediation of security...

Description SAIC is seeking a Senior VOIP Engineer to support a large government customer. This role is onsite at the DOT headquarters in Washington, DC. Job Summary: Analyzes and develops VOIP networks, designing and planning installation and maintenance of VOIP systems from project inception to conclusion. Manages Jabber and Webex and ensures proper integration and communication of those systems with the VOIP network. TOP QUALIFICATIONS, SKILLS, EXPERIENCE OR CERTIFICATIONS: Technical Qualifications Experience with VTC Systems: Expertise in configuring, managing, and troubleshooting systems such as Poly (Polycom), Cisco WebEx, Microsoft Teams Rooms (MTR), and Zoom Rooms. Familiarity with legacy systems like Poly Group Series and new systems like Microsoft Surface Hub and Cisco Boards. Network Knowledge: Strong understanding of networking protocols (e.g., TCP/IP, SIP, H.323, RTP). Experience with VLANs, QoS, and firewall...

Description SAIC is seeking a Cybersecurity Engineer SME to join the Machine-assisted Analytic Rapid-repository System (MARS) Advanced Development Operations (DevOps) and Sustainment Support (ADOS) program and provide on-site technical and administrative support to facilitate operations of critical MARS infrastructure and services. This effort focuses on providing a comprehensive set of System/ Software Engineering and IT Services to maintain, sustain, enhance, and improve/ modernize MARS. This position will be located in the National Capital Region. Please note that this is contingent upon contract award, with an anticipated decision expected by Winter/ Spring 2026. The Cybersecurity Engineer SME responsibilities include, but are not limited to: Spearhead the design, implementation, and enhancement of robust cybersecurity measures tailored to the unique requirements Architect and deploy advanced security solutions that safeguard the MARS...

Description We are seeking a Senior Database Administrator and Migration Expert to lead the SQL migration from on-premises to Google cloud. The position requires expertise on SQL installation, configuration, maintenance, and performance tuning of enterprise database systems to On-premises and Google Cloud. This role ensures the security, availability, reliability, and scalability of mission-critical databases covering enterprise systems such as SQL Server. The Senior DBA will drive architecture and capacity planning, automate operational workflows, enforce robust security practices, and mentor other DBAs on Google Cloud. This position requires hands-on experience managing large, high-availability environments both on-premises and in the Google Cloud. It also includes responsibility for planning and executing complex database migrations to Google Cloud platforms. The ideal candidate will be able to work independently and collaborate closely with stakeholders and...

Description Step into the role of a Mid-Level CyberArk Engineer, where you will play a crucial supporting role in enhancing the Department of Transportation's (DOT) cybersecurity infrastructure. Working alongside senior engineers, you'll contribute to the deployment and ongoing maintenance of a sophisticated Privileged Access Management (PAM) solution. This role will see you engaging with key stakeholders, including DHS CISA integrators, to ensure the PAM system operates flawlessly across development, testing, and production environments. Your daily responsibilities will involve assisting with the management of roles and safes, helping deploy software updates, and contributing to the preparation of reports that highlight the performance and security of the PAM tool. Additionally, you'll be involved in identifying and mitigating security vulnerabilities, providing essential support for on-call troubleshooting and remediation efforts related to the PAM solution. You'll...

Description SAIC is seeking a Zscaler Administrator to support a mission-critical U.S. government agency in the National Capital Region. This hybrid position is part of the Network Operations team and supports the day-to-day administration, monitoring, and operational stability of enterprise cybersecurity platforms, with a focus on Zscaler technologies (ZIA, ZPA, ZDX) within a Microsoft-based environment. The ideal candidate has hands-on operational experience with Zscaler services across cloud, network, and identity domains, and supports ongoing platform administration, troubleshooting, policy updates, and user onboarding activities. This role focuses on operational execution and ticket-based support while collaborating with engineering, network and security teams on configuration improvements and compliance requirements, also contributing to policy management, Zero Trust initiatives. This hybrid role requires a minimum of three on-site days per week in Washington,...

Description SAIC is seeking a well-seasoned Senior Windows System Engineer with experience in Microsoft Cloud Technologies to support Pension Benefit Guaranty Corporation (PBGC) in Washington, DC. As a senior member of the Enterprise Support Services (ESS) team, you will work within the ESS team, interacting with peer teams and partner groups, scaling and deploying improvement, consolidation, migration and break/fix efforts within the enterprise. This role requires an in-depth knowledge of Microsoft Server Architecture, PowerShell Scripting, Active Directory, and Workstation Management. The right candidate will have the ability to adapt to changing technology and apply it to customer needs. Great communication, personal skills and a focus on customer service are a must. The successful candidate will be a self-starter, someone experienced and capable of taking ownership of complex issues with flexibility in a fast-paced environment. Description of Duties: Lead and...

Description SAIC is seeking a Senior Systems Engineer to support a critical U.S. government agency in the National Capital Region. This SME-level role is ideal for an experienced systems engineer with broad technical depth across Microsoft enterprise platforms, Unix/Linux systems, and Zero Trust Architecture (ZTA) components. The role offers an opportunity to lead infrastructure modernization efforts, hybrid identity and access integration, and implementation of secure enterprise environments aligned with agency goals. The ideal candidate will be a subject matter expert in Microsoft endpoint administration with hands-on experience in identity federation, enterprise directory services, secure access platforms, and modern endpoint and application hosting solutions. Key Responsibilities: Lead the design, implementation, and lifecycle support of enterprise infrastructure. Serve as a senior escalation point for complex infrastructure issues, especially in Microsoft...

Description This IT Service Management ITIL Analyst position supports the COMSEC Network Branch (CNB) within the Department of State's (DOS) Bureau of Information Management (IM) Vanguard 2.2.1 program. CNB provides 24×7×365 in-line network encryption management, ensuring the confidentiality, integrity, and availability of classified diplomatic communications worldwide. The role emphasizes IT Service Management (ITSM) and Information Technology Infrastructure Library (ITIL) practices as the primary focus, with network engineering and operations as a supporting skillset. The candidate will apply ITIL-aligned processes to daily operations, incident/problem management, continual service improvement, and ISO/IEC 20000-1:2018 (ISO 20K) compliance, while supporting network monitoring, troubleshooting, and maintenance of encryption devices and related infrastructure. This blended role ensures mature, auditable processes in a high-compliance, classified environment, contributing...