Corporate Security Manager

Onebrief Inc.

Job Overview

Location

USA

Job Type

Full-time

Full Job Description

📋 Description

• Lead the Corporate Security Engineering and Security Operations functions at Onebrief Inc., a fast-growing, all-remote defense technology company valued at $2.15B, to strengthen the security posture of corporate IT environments and commercial infrastructure in alignment with CMMC 2.0 and NIST 800-53 frameworks.
• Own the strategy and maturity roadmap for corporate security engineering and operations, defining standards for configuration baselines, logging and telemetry, detection coverage, vulnerability remediation, and security automation while managing and developing a team of System Security Engineers and Security Operations Analysts through coaching, obstacle removal, and focus on high-impact risk reduction.
• Strengthen configuration enforcement, vulnerability remediation, monitoring quality, and detection coverage across endpoints, identity systems, SaaS platforms, and enterprise infrastructure by collaborating with IT, Engineering, Security, and Compliance teams to ensure secure system deployment, operational risk management alignment, and regulatory compliance.
• Establish consistent processes for monitoring reviews, vulnerability remediation tracking, detection improvements, incident support, and audit evidence management to maintain a secure-by-default, continuously monitored, resilient, and audit-ready corporate environment with defensible evidence.
• Partner closely with Corporate IT, GRC, Engineering, and application owners to translate regulatory requirements into enforceable technical controls, improve processes, review architectures, and make risk-based decisions about security controls while driving improvements in automation, monitoring coverage, and operational maturity.
• Contribute to Onebrief’s mission of empowering military staffs through AI-powered collaboration software by ensuring the corporate security foundation supports the company’s rapid growth and global impact, working alongside veteran-led teams and technologists from top-tier software companies.
• Develop expertise in enterprise security leadership within a high-growth, mission-driven defense tech environment, gaining deep experience in frameworks like CMMC 2.0 and NIST 800-53 while leading technical teams and shaping security strategy at a $2.15B-valued company backed by Battery Ventures, General Catalyst, and Insight Partners.

🎯 Requirements

• 7–10+ years of experience in security engineering, security operations, or enterprise security architecture
• 2+ years leading technical security teams
• Experience with SIEM, EDR, and enterprise monitoring platforms
• Experience implementing security configuration baselines aligned with frameworks such as NIST 800-53, CMMC 2.0, or DISA STIGs
• Experience overseeing vulnerability management programs and remediation SLAs
• Strong understanding of enterprise logging across endpoints, identity providers, SaaS platforms, and cloud systems

🏖️ Benefits

• Fully remote work flexibility with the option to work alongside military customers at commands worldwide
• Opportunity to work at a mission-driven defense technology company valued at $2.15B with $320m+ in funding from top-tier investors
• Leadership role in shaping corporate security strategy for a fast-growing, innovative team spanning veterans and technologists from leading-edge software companies
• Professional growth in enterprise security frameworks (CMMC 2.0, NIST 800-53) and technical leadership within a high-impact, Olympic-team culture focused on excellence and ownership

Skills & Technologies

Remote

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Onebrief Inc.

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About Onebrief Inc.

Onebrief develops AI-driven software that creates, updates, and synchronizes military campaign plans across classified and coalition networks. Its platform ingests doctrine, intelligence, and logistics data to generate living briefings, timelines, and risk assessments for joint and allied forces. Designed for secure environments, the system replaces static slide decks with interactive, version-controlled plans that adapt to real-time information, enabling faster decision cycles and unified command intent during multi-domain operations.

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