Security Engineer

Security Engineer

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ECS is seeking a Security Engineer to work remotely. The Security Engineer will play a critical role in supporting the modernization of federal information technology systems while ensuring the highest standards of cybersecurity and compliance. This position requires an experienced professional who can navigate complex federal security requirements, implement robust security controls, and support the transformation of legacy systems to modern, cloud‑enabled architectures.

The Security Engineer will work closely with cross‑functional teams—including system architects, developers, operations staff, and federal stakeholders—to embed security throughout the modernization lifecycle. This role demands expertise in both traditional federal security frameworks and emerging technologies, with a focus on enabling secure digital transformation while maintaining compliance with federal regulations and standards. The successful candidate will contribute to reducing cybersecurity risks while accelerating the delivery of modernized IT capabilities to support critical government missions.

• Design and implement security architectures for modernized federal IT systems, including cloud‑native and hybrid environments
• Conduct security assessments and risk analyses for existing legacy systems and proposed modernization approaches
• Develop security controls and safeguards that meet federal compliance requirements (FISMA, FedRAMP, NIST frameworks)
• Create and maintain security documentation including System Security Plans (SSPs), security control assessments, and Authority to Operate (ATO) packages

• U.S. Citizen
• Ability to obtain and maintain a DHS Public Trust suitability designation
• Bachelor’s degree in Computer Science, Engineering, Information Systems, or related discipline (or equivalent experience)
• 5+ years in systems engineering for large‑scale IT environments (federal experience preferred)

• Current Security+ certification
• Experience with federal cybersecurity frameworks (NIST 800‑53, FISMA, FedRAMP)
• Hands‑on experience with cloud security in AWS
• Knowledge of network security, encryption technologies, and identity management systems
• Experience with security assessment tools and vulnerability management platforms
• Understanding of Dev Sec Ops  principles and security integration in CI/CD pipelines
• Advanced security certifications (CISSP, CISM, GSEC, AWS Security Specialty, Azure Security Engineer)
• Experience supporting federal ATO processes and working with government security teams
• Knowledge of containerization security (Docker, Kubernetes) and microservices architectures
• Experience with infrastructure as code tools (Terraform, Cloud Formation, Ansible)
• Familiarity with agile development methodologies and project management frameworks
• Previous experience on federal IT modernization or digital transformation initiatives
• Proficiency with security scanning tools (Nessus, Qualys, Rapid7, etc.)
• Experience with SIEM platforms (Splunk, ELK Stack, AWS Security Hub)
• Knowledge of scripting languages (Python, Power Shell, Bash)
• Understanding of network protocols, firewalls, and intrusion detection/prevention systems
• Familiarity with compliance automation tools and security orchestration platforms
• Strong analytical and problem‑solving abilities
• Excellent written and verbal communication skills
• Ability to work effectively in cross‑functional, collaborative environments
• Strong attention to detail and ability to manage multiple priorities
• Adaptability and willingness to learn new technologies and frameworks
• Professional demeanor suitable for interaction with federal personnel and stakeholders

Salary Range: $120,000 - $145,000.

General Description Of Benefits.

ECS is an equal‑opportunity employer and does not discriminate or allow discrimination on the basis of any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

ECS is a leading mid‑sized provider of technology services to the United States Federal Government. We are focused on people, values and purpose. Every day, our 3,300+ employees focus on providing their technical talent to support the Federal Agencies and Departments of the US Government to serve, protect and defend the American People.