Information Systems Security Engineer (ISSE) - SME - Top Secret Clearance

Req ID: 356573 

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.

We are currently seeking a Information Systems Security Engineer (ISSE) - SME - Top Secret Clearance to join our team in Washington, District of Columbia (US-DC), United States (US).

Job Summary: 

The Information Systems Security Engineer (ISSE) is responsible for designing, developing, and implementing secure information systems in compliance with organizational policies, client requirements, and federal cybersecurity standards. The ISSE integrates security into every phase of the system development lifecycle (SDLC), ensuring confidentiality, integrity, and availability are preserved throughout system design, deployment, and sustainment.

As a key member of the Cybersecurity Operations Team, the ISSE works closely with system owners, architects, engineers, developers, and assessors to translate security requirements into technical solutions, mitigate risks, and implement effective security controls. The ISSE provides subject matter expertise in system security architecture, secure integration, regulatory frameworks (RMF, NIST CSF, FedRAMP, DoD), and the configuration of security technologies. 

Job Duties: 

• The ISSE is responsible for developing and integrating security engineering solutions throughout the SDLC:

  • Ensure security is incorporated into requirements, design, implementation, testing, and maintenance.
  • Apply secure design principles such as defense-in-depth and least privilege.
  • Collaborate with architects to align system security architecture with mission needs.

  The ISSE identifies and translates cybersecurity requirements into technical specifications:

  • Interpret security requirements from NIST SP 800-53, CNSSI 1253, and related standards.
  • Convert organizational policies and federal regulations into actionable technical requirements.
  • Balances security requirements with operational and mission objectives.

  The ISSE conducts system-level risk assessments and supports vulnerability management:

  • Perform risk analyses, threat modeling, and vulnerability assessments.
  • Recommend and document mitigation strategies for identified risks.
  • Contribute to continuous monitoring activities by reviewing system risk posture.
  • Conducts static and Dynamic code review when necessary
  • Analysis of scripts as necessary

  The ISSE develops and maintains security documentation to support authorization activities:

  • Draft and update SSPPs, Risk Assessment Reports (RARs), SARs, and related artifacts.
  • Support preparation of documentation for ATOs or equivalent authorizations.
  • Ensure documentation reflects current system architecture and controls.

  The ISSE collaborates with stakeholders to guide secure design and system authorization.

  • Coordinate with ISSOs, ISOs, developers, and assessors throughout security testing and evaluation.
  • Provide security engineering input to development and integration teams.
  • Support compliance with RMF and authorization processes to maintain ATO status.

  The ISSE implements and supports cybersecurity tools and technologies:

  • Assist with the configuration and management of tools such as SIEMs, endpoint protection, firewalls, and vulnerability scanners.
  • Analyze security tool outputs to identify anomalies and potential threats.
  • Recommend improvements in tool integration and effectiveness.

  The ISSE provides technical expertise during incident response activities:

  • Support investigations by analyzing system architecture and configurations.
  • Assist in implementing corrective actions to address vulnerabilities and prevent recurrence.

Basic Qualifications:

• Bechlors degree in information technology, cybersecurity, data science, information systems, or computer science, from an ABET accredited or CAE designated institution.
  • Education Equivalency: One-and-one- half (1.5) years of additional experience can substitute for one (1) year of a typical degree program 
• Minimum 10 years of experience in Information Technology (IT) and/or Information Security (IS).
• Active Top Secret Security Clearance 

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

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