Senior Information Systems Security Engineer (ISSE)

Amentum; United States; In loco; USD 120.000 - 160.000; Tempo pieno

Descrizione del lavoro

Amentum is seeking a Senior Information Systems Security Engineer (ISSE) to join our Cyber, Security, & Intel team at Fort Meade, MD. You will lead security architecture design for classified systems, integrate RMF controls, and advise leadership on risk and mitigations to support mission-critical programs.

The role emphasizes independent problem solving, collaboration across integrated teams, and the ability to evolve security baselines in a dynamic enterprise environment supporting national

Competenze

• Experience designing security architectures for classified enclaves and cross-domain solutions.
• Ability to apply RMF controls across the full system lifecycle.
• Experience briefing leadership on residual risk and mitigations.

Mansioni

• Develop and review security architectures for classified enclaves, cross-domain solutions, cloud environments, and mission applications.
• Integrate security controls into the system development lifecycle, including DevSecOps pipelines.
• Evaluate emerging technologies (zero trust, cloud services, AI/ML tools, containerization) for security implications and recommend risk-informed adoption strategies.
• Define and validate security requirements traceable to mission needs, threat models, and applicable controls.
• Lead system categorization, control selection and tailoring, implementation, assessment, and continuous monitoring under RMF as implemented by the IC.
• Prepare and maintain authorization packages, including System Security Plans, Security Assessment Reports, Plans of Action and Milestones, and risk assessments.
• Brief ISSMs, Authorizing Officials, and program leadership on residual risk and recommended mitigations.

Conoscenze

Security architectures

DevSecOps

RMF processes

Threat modeling

Cross-domain solutions

Risk management

Descrizione del lavoro

Purpose and Impact:

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Senior Information Systems Security Engineer (ISSE) to join our team of passionate individuals at Fort Meade, MD. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation’s security and intelligence mission.

In support of DISA, Amentum’s Intel and Cyber Division is expanding a proven team of highly skilled engineers and architects to support a program that provides critical IT capabilities to the Department of Defense. This team is committed to engineering, assembling, integrating, deploying, and sustaining an innovative IT enterprise solution.

Our team delivers secure, mission-critical capabilities where system integrity and rapid deployment are paramount. We are seeking a Senior Information Systems Security Engineer (ISSE) who combines meticulous technical discipline with strategic foresight. In this role, you will lead efforts to establish and maintain robust baselines in a rapidly evolving operational environment. Success requires the ability to navigate complex, unique technical challenges independently while fostering collaborative solutions across integrated teams. To excel, you must possess a proactive learning mindset and the agility to rapidly master and govern the integration of next‑generation systems and services.

Work Schedule: 8 Hours per day, Monday thru Friday

Essential Responsibilities:

The duties and responsibilities of the Senior Information Systems Security Engineer (ISSE) include but are not limited to the following:

The Senior ISSE leads the design, integration, and assessment of security architectures for information systems that process, store, and transmit classified and sensitive intelligence information. The incumbent applies systems security engineering principles throughout the full system lifecycle, ensures compliance with Intelligence Community (IC) and national security policy, and advises program leadership and Authorizing Officials (AOs) on risk. This is a senior technical role with significant independence, mentoring responsibility, and influence over enterprise security decisions.

Key Responsibilities:

• Develop and review security architectures, designs, and requirements for classified enclaves, cross-domain solutions, cloud environments, and mission applications.
• Integrate security controls into the system development lifecycle, including DevSecOps pipelines, so that security is built in rather than bolted on.
• Evaluate emerging technologies (zero trust, cloud services, AI/ML tools, containerization) for security implications and recommend risk-informed adoption strategies.
• Define and validate security requirements traceable to mission needs, threat models, and applicable controls.
• Lead system categorization, control selection and tailoring, implementation, assessment, and continuous monitoring under the Risk Management Framework (RMF) as implemented by the IC.
• Prepare and maintain authorization packages, including System Security Plans, Security Assessment Reports, Plans of Action and Milestones (POA&Ms), and risk assessments.
• Brief Information System Security Managers (ISSMs), Authorizing Officials, and program leadership on residual risk and recommended mitigations.
• Support recipro