Security Engineering Manager (Cloud & AppSec)
Horizon3
full-remoteseniorpermanentsecurityengineering-management Full remote 17 days ago via WTTJ
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AWSCloud SecurityApplication SecurityIAMTerraformGitLabCI/CD SecuritySOC 2NISTMITRE ATT&CK
About the role
Security Engineering Manager (Cloud & AppSec)
Lead and grow the Security Engineering team while embedding security into the software development lifecycle.
Responsibilities
- Manage Security Engineering: lead the team, set priorities and operating rhythms, balance strategic security investments with day-to-day engineering support and incident response.
- Cloud security controls: design and implement security controls across cloud environments; continuously monitor and improve cloud posture.
- Secure SDLC: partner with engineering teams to embed security into development processes and delivery.
- Security governance: develop and maintain security policies, standards, and procedures aligned to SOC 2, GDPR, ISO 27001, FedRAMP, NIST, CIS, and MITRE ATT&CK.
- Risk communication: develop metrics and reporting to communicate risk and security posture to leadership.
- Data protection: apply DLP concepts (data classification, identification, and protection).
- Application Security leadership: help lead or closely partner on threat modeling, vulnerability management, and security reviews.
Requirements
- Strong technical depth in cloud security and application security with cross-functional partnership across engineering, infrastructure, and compliance.
- Knowledge of compliance standards and security frameworks: SOC 2, GDPR, ISO 27001, FedRAMP, NIST, CIS, MITRE ATT&CK.
- Deep understanding of AWS security architecture, IAM, cloud posture management, data security, and secure SDLC.
- Experience building security metrics/reporting for leadership.
- Familiarity with DLP.
- Strong written and verbal communication to explain security risks/tradeoffs to technical and non-technical stakeholders.
- 5+ years securing cloud-native systems and modern software delivery pipelines.
- 5+ years in cybersecurity; 5+ years securing AWS environments.
- Prior leadership experience (leading security engineers or acting as a technical lead in security).
- Bachelor’s degree in CS/Cybersecurity/Information Systems (or equivalent practical experience).
Nice to have / Preferred Tech
- AWS Certified Security – Specialty.
- CISSP or other relevant security certifications.
- Experience scaling security programs across engineering organizations.
- Broad security domain knowledge with specialization in areas such as incident management, detection engineering, response tooling, or logs/events processing.
Required / Mentioned Tools & Technologies
- AWS security services, IAM, cloud security monitoring and posture tools
- Terraform, GitLab, modern CI/CD security practices
- Mentioned platforms/tools: Crossplane, ArgoCD
About Horizon3
Horizon3 is a cybersecurity-focused company building and operating a security platform for cloud and application systems. The role emphasizes improving security, resilience, and scalability across Horizon3’s cloud environments and internal systems, combining cloud security engineering with AppSec and compliance.
Scraped 6/11/2026