653 senior security engineer jobs found

Position: Senior Security Engineer - IOT Job Description: Experience: 2–6 years of relevant experience in system security, embedded systems, and vulnerability assessments. Key Skills: Firmware Analysis Tools: Expertise in using firmware analysis tools such as Ghidra , Binwalk , and Radare2 for static and dynamic analysis of firmware images. Embedded Linux Platforms: In-depth knowledge of embedded Linux , Yocto , and OpenWRT platforms for secure firmware and OS testing. Secure Boot & Firmware Update Mechanisms: Proficiency in testing secure boot processes and firmware update mechanisms, ensuring integrity and authenticity. OS Hardening & Security Configurations: Strong understanding of OS hardening techniques and security configurations to mitigate threats and enhance system integrity. Vulnerability Assessment & CVE Analysis: Extensive experience with vulnerability assessment frameworks and CVE analysis ,...

Overview LMI is seeking a Staff Security & Compliance Engineer to secure a common platform for onboarding, deploying, and hosting third-party applications in support of HQDA G-4. This engineer will support the platform’s authorization, maintain its security controls, and assess whether applications meet prescribed controls and hosting standards before deployment and during operations.   This is a hands-on role for an engineer who can turn security requirements into automated checks, clear findings, and actionable evidence for government decisions.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed. Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we...

Position Summary The Senior Network Security Engineer leads the design, implementation, and governance of secure enterprise network infrastructures across on-premises, cloud, and hybrid environments. This role ensures the protection of corporate assets and, where applicable, Controlled Unclassified Information (CUI), by aligning systems to cybersecurity best practices and compliance frameworks such as NIST SP 800-171 and CMMC Level 2.   Responsibilities Duties include, but not limited to:  Architect, implement, and maintain secure network infrastructures aligned with enterprise and CMMC Level 2 requirements. Design and manage firewalls, VPNs, IDS/IPS, micro segmentation, and encryption controls. Re-architect network infrastructure for scalability and growth. Ensure proper VLAN segmentation and zero-trust alignment. Perform daily monitoring of network health and detect zero-day exploits. Monitor network...

Position Summary Odyssey has an exciting opportunity for a Senior Acquisition Program Engineer – Systems Security at Eglin AFB. You'll be the guardian of the Air Force’s most advanced systems, locking down classified tech, shaping cybersecurity defenses, and keeping mission‑critical programs safe from threats. Responsibilities Duties include, but not limited to: Identify and assess Critical Program Information (CPI) and determine when AT protections are required. Develop AT specifications and procedures that prevent or delay exploitation of critical technologies. Support and maintain AT sections of the Program Protection Plan. Coordinate with external stakeholders (e.g., SAF/IA, AT Evaluation Team, Weapons AO, OSI/PJ, 48 CTS) to enable compliant testing and fielding. Apply IA engineering to air‑to‑air and air‑to‑ground weapon systems in accordance with DoDI 5200.44 and DoDI 8500.01E . Identify...

Position Summary Odyssey Systems has an exciting opportunity for a Senior Information Systems Security Engineer (ISSE) supporting the AFLCMC/HNJ Special Programs Division, located at Hanscom Air Force Base, MA. The division focuses on rapid prototyping, secure Kill Chain capabilities integration, and special access program mission execution. In this role, you will lead Authorization and Accreditation (A&A) documentation efforts and provide Systems Security Engineering (SSE) expertise across highly classified environments, ensuring cybersecurity protections are embedded into system architectures from concept through sustainment. Responsibilities In this Advisory and Assistance Services (A&AS) role, you will provide expert-level support to Department of Defense (DoD) programs by assisting government leadership with decision-making, planning, and execution throughout the acquisition lifecycle. You will apply your technical...

Description SAIC is seeking a Senior Security Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. Work is performed on site in Kittery, ME. ROLE: Actively monitor, detect, and respond to cybersecurity threats and incidents within an organization. Utilize advanced security tools and technologies, such as Host-Based Security System (HBSS) and Security Information Event Management (SIEM) platforms, to continuously monitor network traffic, identify vulnerabilities, and detect suspicious activities. Conduct thorough investigations of security incidents, implement incident response protocols, and coordinate remediation efforts to mitigate potential risks. Collaborate with IT teams to...

Description: WHAT WE’RE DOING At Lockheed Martin's Rotary and Mission System's Cyber Resiliency organization, we are dedicated to engineering and deploying cutting-edge cyber defense solutions across our corporation. Our focus on cybersecurity is paramount to ensuring mission success for our customers, even in the face of evolving cyber threats. THE WORK As a member of our team, you will be involved in a variety of activities aimed at enhancing the cyber resiliency of the USSF Space Fence System radar. This includes tasks such as: • Hardening operating systems, applications, and network devices • Conducting vulnerability scans • Continuous monitoring of the security posture of the system • Assisting with Government Certification Test and Evaluation (CT&E) and Vulnerability Testing • Implementing security updates and patches • Applying configuration changes to ESS, ACAS, and SolarWinds security tools • Providing support to maintain the Certification and Accreditation...

Description: What We’re Doing At Lockheed Martin, our Command and Control, Battle Management and Communications (C2BMC) National Team (C2NT) is pioneering the development and integration of cutting-edge technologies to advance the Missile Defense System, safeguarding the United States and its allies. Our collaborative and agile organization operates in a fast-paced environment, driving innovation through tasks such as sensor/weapon integration, algorithm development, user interface development, automated testing, cyber security, enterprise/infrastructure services, and enhancing leading-edge missile defense technologies. The Work Designs, plans, and validates secure network communications systems for the C2BMC program. You develop detailed specifications, schematics, and capacity forecasts; select hardware/software; implement firewalls, switches, routers, and security relevant devices; and conduct rigorous testing. You apply DoW RMF/CSRMC/STIG compliance, produce required IA...

Description: WHAT WE’RE DOING At Lockheed Martin's Rotary and Mission System's Cyber Resiliency organization, we are dedicated to engineering and deploying cutting-edge cyber defense solutions across our corporation. Our focus on cybersecurity is paramount to ensuring mission success for our customers, even in the face of evolving cyber threats. WHO WE ARE Lockheed Martin is driven by innovation, integrity, and a commitment to excellence. We believe in applying the highest standards of business ethics and visionary thinking to everything we do. As part of our team, you will collaborate with a cross functional team of technical professionals including software and systems engineers and radar operators to maintain the cybersecurity posture of the Space Fence Radar System. WHO YOU ARE We are looking for individuals who are passionate about cybersecurity and eager to contribute their skills and expertise to our mission. You should have demonstrable knowledge in...

Position Summary Evergreen (Pipeline) Requisition   This requisition is used to build a pipeline of qualified candidates for future opportunities. While there may not be an immediate opening, candidates will be considered as positions become available based on their qualifications and program needs.   Odyssey is seeking experienced Cybersecurity Engineering Support professionals at various levels to support the Air Force Life Cycle Management Center Intelligence, Surveillance, Reconnaissance (ISR) and Special Operations Forces (SOF) Directorate (AFLCMC/WI) at Wright Patterson AFB, OH .  AFLCMC/WI is responsible for equipping warfighters to win the fight.  The Directorate executes a $22 billion acquisition portfolio developing, producing, testing, modifying, fielding, and supporting Air Force ISR and SOF platforms, and related sub-systems.    This role provides cybersecurity engineering support for DoD weapon systems, ensuring systems are...

Position Summary Odyssey Systems has an exciting opportunity for a Senior Systems Engineer providing support to the Air Force Life Cycle Management Center-Ground Base Air Defense Sensor division (AFLCMC/ESG).   The ESG Division manages efforts focused on developing, acquiring, fielding and sustaining programs that support worldwide communications, Battle Management, Command & Control, Intelligence, Surveillance & Reconnaissance (C2ISR), Air/Ground Surveillance, Time Critical Targeting, Combat Identification, Radar Imagery, Integrated Air/Missile Defense, and Mobile/Fixed C2ISR Performance, Exploitation & Dissemination Facilities.   This is a full time position located at Hanscom AFB, Bedford, MA. Responsibilities Duties include, but not limited to:  Conduct comprehensive program portfolio reviews to evaluate and recommend alternative plans, enhance systems engineering processes, manage and sustain...

Overview LMI is seeking a Senior Software Engineer to build user-facing applications supporting HQDA G-4. This engineer will own application capabilities from user need through production delivery as containerized applications deployed to a Kubernetes cluster.   This is a hands-on role for an engineer who can work across the stack, make architectural decisions, and build software directly with Army users and product teams.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed. Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense,...

Overview Build technology where the mission happens. We are seeking a Senior Forward Deployed Engineer to embed directly with mission users and own the technical solution from mission need through production deployment. This is a hands-on role for an engineer who enjoys solving hard, ambiguous problems—and wants to see the technology they build make a difference in the real world. You will work alongside mission users to understand what is actually happening on the ground, identify opportunities where technology can make a meaningful difference, and turn those insights into working solutions. You’ll integrate advanced technologies—including modern AI/LLM capabilities—into operational workflows, build and deploy new software capabilities, and iterate directly with users until the solution delivers measurable mission impact. This is not a role where you simply receive requirements and hand off code. You will be close to the problem, close to the user,...

Overview LMI is seeking a highly experienced Senior Software Test Automation Engineer to support U.S. Army Enterprise Resource Planning (ERP) programs at a client location. The selected candidate will lead and advance automated testing capabilities for a major Defense Business System modernization effort, working closely with Army test agencies, ERP program personnel, and the lead system integrator. This role is responsible for developing test strategies, automation frameworks, test plans, and quality practices that enable reliable, repeatable, and risk-based testing throughout the software delivery lifecycle. The position supports remote telework, with occasional travel to client offices at Fort Lee and Fort Belvoir, Virginia. Responsibilities Responsibilities Develop, maintain, and execute program-level test and evaluation plans. Coordinate testing activities with Army test organizations, ERP program staff, functional...

Overview LMI is seeking a Staff Data Engineer to build authoritative data products supporting Army logistics operations. This engineer will own the development and sustainment of data pipelines, models, and ontology within Palantir Foundry. This is a senior individual-contributor role for an engineer who can make architectural decisions, build production systems, and raise the technical standard of the team.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space,...

Responsibilities: The National Security Agency (NSA) currently has opportunities for highly motivated Industrial Control System (ICS) Specialists/Engineers to provide expertise in the design, construction, commissioning, and operation of new and renovated electrical and mechanical infrastructure. This position has two areas of focus, one within Design and Engineering (D&E) and the other with Operations and Maintenance (O&M). As an ICS Specialist/Engineer within D&E, you will work closely with multidisciplinary teams encompassing project managers, stakeholders, and contractors throughout the entirety of the project life-cycle, including close coordination with O&M. You will also be responsible for the development and review of designs, specifications, technical reports, and cost estimates for power monitoring and control of electrical and mechanical infrastructure, energy management monitoring, and ICS cybersecurity. As an ICS Specialist/Engineer within O&M,...

Description The Office 365 Knowledge/Collaboration Engineer will join our team of Test and Evaluation (T&E) professionals to develop and maintain solutions for Government clients using SharePoint, PowerApps, Power BI, and the Power Platform. The successful candidate will collaborate with both business and technical stakeholders to define constraints, develop and document requirements, and identify, build, and deploy the most suitable technical solutions. OBJECTIVES: Data Visualization and Reporting: Utilize Power BI and PowerApps to create integrated reporting and dashboard solutions that provide actionable insights and operational intelligence. Supporting Data-Driven Decisions: Equip senior leaders with the tools and data necessary for informed decision-making through comprehensive visualizations and real-time analytics. Workflow Enhancement: Develop custom SharePoint applications to automate and optimize current workflow processes, promoting operational efficiency....

Description SAIC is searching for a Senior level System Administrator who performs high-level, day-to-day operational maintenance, support, and upgrades for complex operating systems, server hardware to join our VA team. Develops solutions to routine technical problems of limited scope. Follows standard practices and procedures in analyzing situations or data from which answers can be readily obtained. This is a 100% Remote role. Job Description Coordinates, directs and performs complex software installations and upgrades to operating systems and layered software packages Schedules installations and upgrades and maintains them in accordance with established IT procedures Continually monitors and tunes multiple systems to achieve optimum performance levels Ensures data/media recoverability by developing and implementing a schedule of system backups and database archive operations Plans and implements the modernization of servers. Develops, implements and promotes...

Description SAIC is currently hiring a System Engineer at Ft Belvoir, VA. Job Duties : Support the modernization and integration of the Intelligence Foundation layer aligning sensors, data, and analytics with command requirements of the US Army Intelligence and Security Command (INSCOM) needed to execute Multi-Domain Intelligence. Maintain responsibility for assessment and estimation of gap analysis, requirements, development, test, and deployment of products and systems. Work closely with customers, senior leadership within programs, and other systems engineers and development engineers to comprehend customer objectives and requirements and develop solutions from the conceptual stage through delivery and field deployment. Comprehend customer objectives, CONOPS, and requirements and translate those requirements into an executable development plan. Responsible for overseeing system definition and implementation in support of an overall system architecture for...

Description SAIC is looking for a Senior Software Engineer for a position located in San Diego, CA. The candidate will be required to have a high level experience in JavaScript, React, Linux (RHEL), and has a strong background in Web Experience. This role requires you to have an ACTIVE SECRET clearance to start. *This will be an ON-SITE role with expected travel up to 10% throughout the year.* JOB DUTIES: The candidate shall perform software engineering design and development activities to produce reliable, modular, and secure software components. The work will include development of software on a RHEL OS platform. This will include software development with custom C++ based applications, X windows-based applications, and web-based middleware. Development will consist of application writing and policy for security accreditations. Qualifications REQUIREMENTS : Education and Experience: Bachelors and five (5) years or more experience; Masters and...