Senior Security Engineer -TS/SCI Clearance Required

Position Overview Senior Security Engineer – Columbia, MD – Clearance: TS/SCI Responsibilities Architect, implement, and maintain enterprise security controls and infrastructure components across Windows, Linux, and virtualized environments. Lead the design, deployment, configuration, and lifecycle management of endpoint hardening and security tools (e.g., Ivanti, WSUS, Trellix, Tenable). Oversee patch management processes, including OS updates, third‑party software updates, and administrative tool upgrades. Provide expert‑level troubleshooting, root‑cause analysis, and performance optimization for complex security and infrastructure issues. Evaluate, recommend, and lead the adoption of new security tools, technologies, and methodologies. Develop and maintain security documentation, including SSPs, RMF artifacts, engineering diagrams, and operational procedures. Design and implement security requirements within enterprise business processes and technical architectures. Support vulnerability assessments, interpret results, and develop risk‑based mitigation strategies. Conduct system hardening, configuration baselining, and compliance scanning to ensure adherence to security standards. Support and guide incident response activities, including forensic analysis and containment strategies. Collaborate with cross‑functional teams to ensure security is embedded throughout system lifecycles. Mentor and provide technical leadership to junior and mid‑level security engineers. Contribute to long‑term security strategy, capability development, and continuous improvement initiatives. Support a diverse set of enterprise networks and mission environments as part of a high‑performing security engineering team. Qualifications 8+ years progressive experience designing, engineering, and securing enterprise‑scale IT systems across complex network environments. Expert‑level knowledge in architecting, deploying, and maintaining security infrastructure, including endpoint protection, vulnerability management, configuration management, and enterprise hardening solutions. Demonstrated experience leading security engineering initiatives, including implementing advanced security controls, designing secure configurations, and overseeing patch and update strategies for Linux and Windows environments. Extensive hands‑on experience with enterprise security tools such as Ivanti, WSUS, Trellix, Tenable, or equivalent platforms, including tool integration, optimization, and lifecycle management. Strong understanding of security frameworks and compliance requirements, such as NIST RMF, NIST800‑53, STIGs, or equivalent federal/DoD standards. Demonstrated ability to lead complex troubleshooting efforts, perform root‑cause analysis, and drive long‑term remediation strategies across enterprise systems. Experience mentoring junior engineers and contributing to team capability development. Required management‑level certification (CASP+, CISSP, or equivalent senior‑level certification). Vendor certification in one or more relevant technologies (Microsoft, VMware, Cisco, NetApp, Pure Storage, HP, Dell, Linux+, RedHat, HBSS, ACAS). Candidates without an active certification must obtain one within 6 months of hire. Preferred: Bachelor’s degree and experience working within a SOC. Benefits Health and Wellness: Medical, Dental, and Vision insurance; Health Savings Account (HSA) contributions of $1500 individual / $3000 family. Personal Insurance: Company‑paid Life Insurance and AD&D coverage; Company‑paid Short‑term and Long‑term Disability Insurance. Paid Leave: 20 days of vacation, 10 holidays built into hourly rate, 5 days of sick time. Retirement: Pre‑tax 401(k) with 6% company match; 100% fully vested from eligibility date (eligible after 90 days of employment). Tulzi Technologies provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, pregnancy, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. #J-18808-Ljbffr