Security Engineer

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Semaphore Corporation

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 1993

🤝 B2B

💼 Consulting

☁️ SaaS

B2B • Consulting • SaaS

Semaphore Corporation is a technology solutions provider specializing in consulting services related to data management and IT infrastructure. Founded by experienced engineers, the company offers a range of services including datacenter solutions, colocation, bandwidth management, and cloud acceleration tailored to meet the unique needs of its clients. Semaphore acts as an extension of client teams, ensuring personalized and effective solutions that are delivered on time and within budget.

📋 Description

• Own the technical side of information security across infrastructure and internal systems • Run the vulnerability-management lifecycle, including scanning, triage, prioritization, remediation, exceptions, and verification • Operate and improve security monitoring and SIEM tooling, including alert quality, dashboards, detection rules, and integrations • Investigate security alerts and lead technical responses to security incidents • Improve security for Linux hosts, cloud infrastructure, networks, firewalls, containers, and internal services • Own technical controls for identity and access management, least privilege, just-in-time access, secrets, and certificates • Automate patching, evidence collection, recurring control checks, and other security operations • Coordinate penetration tests and drive technical findings through remediation and verification • Translate SOC 2 and ISO 27001 control requirements into effective technical implementations • Produce technical evidence for internal and external audits with the Compliance Manager • Maintain security runbooks, system documentation, risk-based priorities, and operational metrics • Help engineering teams make practical security decisions without unnecessary process • Provide clear guidance to Engineering and Infrastructure teams and drive security issues to closure

🎯 Requirements

• Proven ownership of technical security in a production SaaS, cloud, hosting, or infrastructure environment • Strong Linux systems, networking, and cloud-security fundamentals • Hands-on experience with vulnerability management, patching, hardening, and remediation at scale • Experience operating SIEM or security-monitoring systems and investigating security events • Practical understanding of IAM, privileged access, secrets management, certificates, and network controls • Ability to automate operational work using Python, Bash, infrastructure-as-code, or similar tools • Experience participating in incident response and communicating clearly during high-pressure situations • Working knowledge of ISO 27001, SOC 2, or similar security-control frameworks • Strong written and spoken English • Comfort working independently in a remote, asynchronous team • Good risk judgment and ability to distinguish urgent security problems, acceptable exceptions, and low-value processes • Experience with Wazuh or a comparable SIEM/security-monitoring platform is nice to have • Experience with Teleport, PAM, or just-in-time access systems is nice to have • Experience securing large Linux server fleets or hybrid cloud/on-premise environments is nice to have • Familiarity with CI/CD systems, build infrastructure, containers, and software supply-chain security is nice to have • Experience supporting SOC 2 or ISO 27001 audits from the technical-control side is nice to have • Relevant certifications such as Security+, CISSP, CISM, GIAC, or ISO 27001 are nice to have, but certification is not required