Senior Cybersecurity Engineer — Enterprise Defense & Cloud

SOSi; Washington (District of Columbia); On-site; USD 120,000 - 249,000; Full time

Job summary

SOSi is seeking a Senior Cybersecurity Engineer to support an enterprise cyber defense program for a federal customer in the Washington, DC area. The role combines security engineering, architecture and operations, advising government stakeholders on threats and technologies.

The position requires hands-on engineering depth, the ability to communicate clearly across technical and non-technical audiences, and the eligibility to obtain a Secret clearance.

Qualifications

• Five (5) years security-related experience.
• Experience implementing tools and processes for offensive and defensive cybersecurity.
• Experience with incident response methodologies and remediation paths.
• Experience in intrusion/threat detection across cloud, host, network and mobile.
• Knowledge of MITRE ATT&CK and D3FEND frameworks.
• Experience with digital media analysis and forensics.
• Experience static/dynamic analysis of malicious binaries.
• Knowledge of security event correlation tools.
• Understanding of network security architecture and protocols.
• Knowledge of OS hardening and application security threats.

Responsibilities

• Serve as a senior technical advisor on security architecture, engineering and operations.
• Conduct security architecture reviews and develop risk management recommendations.
• Translate requirements into security requirements, baselines and concepts of operation.
• Plan and tune security tooling across monitoring, detection, automation and threat intelligence.
• Lead evaluations and proofs of concept for emerging cybersecurity technologies.
• Support security of cloud environments and DevSecOps integration.
• Provide security engineering support for identity, authentication and mobile security.
• Advise on cryptographic modernization efforts and next-generation encryption standards.
• Advise on secure adoption of AI and generative AI technologies.
• Apply incident response methods and support complex investigations.
• Develop scripts and automation to improve security tasks.
• Produce technical documentation and leadership briefings.

Skills

Security architecture

Threat detection

Incident response

MITRE ATT&CK

D3FEND mapping

Cloud security

DevSecOps

cryptographic modernization

Education

Bachelor’s Degree

Tools

SIEM tools

Sandboxing

Forensic tools

Job description

SOSi is seeking a Senior Cybersecurity Engineer to support an enterprise cyber defense program for a federal customer in the Washington, DC area. The role combines security engineering, architecture and operations, advising government stakeholders on threats and technologies.

The position requires hands-on engineering depth, the ability to communicate clearly across technical and non-technical audiences, and the eligibility to obtain a Secret clearance.