Attack Surface Management Specialist

Mimecast•Lexington, MA

1d•$124,000 - $186,000

About The Position

We are seeking an advanced Attack Surface Management (ASM) professional to join Mimecast's Information Security organization as a Senior ASM Specialist . This is a strategic, hands-on role leading the design, implementation, and continuous improvement of our attack surface reduction initiatives. The successful candidate will bring strong technical expertise in ASM methodologies and broad project management capabilities. What You'll Do: Attack Surface Management Strategy & Architecture Lead the design and evolution of comprehensive attack surface management strategies aligned with organizational risk reduction targets Architect ASM discovery, monitoring, and validation frameworks that identify and track external assets across cloud, network, and application environments Develop and implement advanced detection methodologies for shadow IT and rogue assets Establish baseline metrics and KPIs for attack surface visibility and coordinate their achievement across security operations teams Process Improvement & Automation Make improvements to existing ASM processes, tools, and workflows; own the end-to-end execution of these enhancements, improve automation Evaluate and drive adoption of new ASM tooling, platforms, and technologies. Improve team efficiency and document standard operating procedures Cross-Functional Leadership & Collaboration Communicate with security operations, vulnerability management, infrastructure, development, and business teams to establish priorities. Gain organizational cooperation on the adoption of new ASM processes and procedures by clearly demonstrating business value Coordinate with external stakeholders including cloud service providers, domain registrars, and security vendors Partner with the vulnerability management function to ensure discovered all assets are properly scanned, classified, and prioritized Vulnerability & Risk Management Integration Ensure attack surface visibility feeds directly into vulnerability management workflows and Jira tracking systems Prioritize discovered assets and vulnerabilities using business impact, EPSS scoring Support executive reporting on attack surface reduction progress Maintain oversight of critical vulnerabilities tied to external-facing assets and coordinate remediation timelines Complex Project Management Manage complex, multi-phase ASM initiatives with general oversight; define scope, timelines, resource requirements, and success criteria Lead projects such as cloud security posture assessments, third-party risk management integrations, or regional attack surface reduction campaigns Work with minimal day-to-day direction; escalate strategic decisions and blockers appropriately to leadership Track project health through metrics and maintain stakeholder visibility on progress and risks Threat Intelligence & Compliance Integration Incorporate relevant threat intelligence (zero-day vulnerabilities, attack trends, industry-specific risks) into attack surface prioritization decisions Ensure processes align with compliance (SOC 2, ISO 27001, regional data protection) Contribute to security assessments and audit responses related to external assets.

Requirements

6+ years of experience in information security, with at least 4 years directly focused on attack surface management, external vulnerability management, or asset discovery
Advanced technical knowledge, methodologies and tools (e.g., Tenable, Shodan, Rapid7 Insight VM, Qualys VMDR, or similar platforms)
Broad knowledge of project management methodologies; experience managing complex, multi-stakeholder initiatives, ability to design and implement process improvements
Strong understanding of cloud security (AWS, Azure, GCP), network reconnaissance, and vulnerability assessment
Excellent written and verbal communication skills; ability to explain complex security concepts to technical and non-technical audiences
Experience with JIRA, vulnerability management workflows, and security automation tools
Bachelor's degree in Computer Science/Information Security or equivalent professional experience

Nice To Haves

Experience with threat intelligence platforms and CSIRT coordination
Knowledge of OWASP, NIST Cybersecurity Framework, or similar security standards
Experience in responsible disclosure program management
Experience in a large SaaS organization, world distributed security teams

Responsibilities

Attack Surface Management Strategy & Architecture Lead the design and evolution of comprehensive attack surface management strategies aligned with organizational risk reduction targets
Architect ASM discovery, monitoring, and validation frameworks that identify and track external assets across cloud, network, and application environments
Develop and implement advanced detection methodologies for shadow IT and rogue assets
Establish baseline metrics and KPIs for attack surface visibility and coordinate their achievement across security operations teams
Process Improvement & Automation Make improvements to existing ASM processes, tools, and workflows; own the end-to-end execution of these enhancements, improve automation
Evaluate and drive adoption of new ASM tooling, platforms, and technologies.
Improve team efficiency and document standard operating procedures
Cross-Functional Leadership & Collaboration Communicate with security operations, vulnerability management, infrastructure, development, and business teams to establish priorities.
Gain organizational cooperation on the adoption of new ASM processes and procedures by clearly demonstrating business value
Coordinate with external stakeholders including cloud service providers, domain registrars, and security vendors
Partner with the vulnerability management function to ensure discovered all assets are properly scanned, classified, and prioritized
Vulnerability & Risk Management Integration Ensure attack surface visibility feeds directly into vulnerability management workflows and Jira tracking systems
Prioritize discovered assets and vulnerabilities using business impact, EPSS scoring
Support executive reporting on attack surface reduction progress
Maintain oversight of critical vulnerabilities tied to external-facing assets and coordinate remediation timelines
Complex Project Management Manage complex, multi-phase ASM initiatives with general oversight; define scope, timelines, resource requirements, and success criteria
Lead projects such as cloud security posture assessments, third-party risk management integrations, or regional attack surface reduction campaigns
Work with minimal day-to-day direction; escalate strategic decisions and blockers appropriately to leadership
Track project health through metrics and maintain stakeholder visibility on progress and risks
Threat Intelligence & Compliance Integration Incorporate relevant threat intelligence (zero-day vulnerabilities, attack trends, industry-specific risks) into attack surface prioritization decisions
Ensure processes align with compliance (SOC 2, ISO 27001, regional data protection)
Contribute to security assessments and audit responses related to external assets.