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Information Systems Security Engineer (ISSE)

Two Six TechnologiesChantilly, Virginia
On-site Full-time $137K/yr - $230K/yr

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Experience Level

Mid to Senior

Qualifications

Key Responsibilities:Act as the Cyber Security Engineer Subject Matter Expert (SME), providing hands-on security engineering across all layers of systems (infrastructure, platform, and application). Engineer, implement, and validate security controls in line with NIST SP 800-53 and RMF requirements. Lead and facilitate RMF lifecycle activities, including Categorize, Select, Implement, Assess, Authorize, and Monitor. Conduct security engineering for various domains, including:Network architectures and boundary protections. Windows and Linux operating systems. Storage and virtualization platforms. Databases and data platforms. Web services, APIs, and application stacks. Custom and COTS/GOTS software solutions. Provide technical contributions to RMF artifacts, including:System Security Plans (SSP). Support for Security Control Assessments (SCA). Plans of Action and Milestones (POA&Ms). Risk assessments and security impact analyses. Collaborate with system owners, architects, developers, and operations teams to integrate security into system design and implementation. Support Authorization to Operate (ATO), re-authorization, and continuous monitoring efforts. Identify security risks and provide mitigation strategies.

About the job

Join Two Six Technologies, where we are dedicated to building, deploying, and implementing cutting-edge solutions that tackle the world's most intricate challenges. Through unmatched teamwork and steadfast trust, we strive to expand the limits of possibility to empower our team and assist our clients in creating a safer global future.

Information Systems Security Engineer (ISSE)

Two Six Technologies is on the lookout for a skilled Information Systems Security Engineer (ISSE) to take charge of security engineering activities across complex, enterprise-scale environments. This position demands profound technical expertise across infrastructure, platforms, and applications, along with extensive hands-on experience in executing the NIST Risk Management Framework (RMF) in federal government settings. The ideal candidate will be a technical practitioner who can design, implement, assess, and secure systems comprehensively while directly supporting system authorization, continuous monitoring, and risk-based decision-making. Additionally, this role will act as the primary technical point of contact for all security incidents, leading triage, investigation, and resolution efforts in collaboration with program and enterprise security teams.

About Two Six Technologies

At Two Six Technologies, we are committed to developing innovative products that address today's most complex challenges. Our culture of collaboration and trust allows us to push boundaries, empowering our teams and supporting our clients in creating a safer global environment.

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