Senior Security Engineer- -TS​/SCI w​/Poly Security Clearance Req

Senior Security Engineer

Tulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. Tulzi offers secure network systems and software engineering solutions in both public and private sectors. With certified expert consulting the team at Tulzi is able to address the customers mission, and follow through in the systems development life cycle.

Clearance Required:

TS/SCI

The Senior Security Engineer serves as a technical leader responsible for architecting, engineering, and sustaining enterprise grade security solutions across complex IT environments. This role is deeply handson and requires the ability to design, build, implement, operate, and optimize security technologies that protect mission critical systems. The Senior Security Engineer provides technical direction, mentors junior engineers, and drives security innovation across the organization.

The engineer leads advanced research, evaluation, and integration of emerging security technologies to strengthen the enterprise security posture. They ensure that system hardware, operating systems, software, and security controls adhere to organizational policies, compliance frameworks, and mission objectives.

Key responsibilities include:

• 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, rootcause 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 riskbased 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 life cycles
• Mentor and provide technical leadership to junior and midlevel security engineers
• Contribute to longterm 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

Minimum Requirements (Knowledge, Skills, and Abilities): 8+ years of 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 handson 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, NIST 80053, STIGs, or equivalent federal/DoD standards Demonstrated ability to lead complex troubleshooting efforts, perform rootcause analysis, and drive longterm remediation strategies across enterprise systems Experience mentoring junior engineers, providing technical leadership, and contributing to team capability development Required IAT/Management level certification: one or more of the following - CASP+, CISSP, or equivalent senior level certification Required vendor certification in one or more relevant technologies (e.g., Microsoft, VMware, Cisco, Net App, Pure Storage, HP, Dell, Linux+, Red Hat, HBSS, ACAS).

Candidates without an active certification must obtain at least one within 6 months of hire

Preferred Qualifications:

Bachelors Degree Experience working within a SOC

Benefits:
We offer a competitive benefits and compensation package and FUN place to work! Benefits include, but not limited to:
Health and Wellness Benefits

• Medical Insurance (three Care First healthcare plans to choose from, Dental and Vision Insurance, 75% covered for employee/ 50% per dependant)
• Health Savings Account…