Senior Cloud Security Engineer: DevSecOps & Zero Trust

Cubic; Ireland; On-site; Full time

Job description

Role Overview

Responsible for leading the design, implementation, and continuous improvement of security engineering practices across cloud, on‑premise, and hybrid environments. This role drives security‑by‑design principles, DevSecOps integration, cloud and platform hardening, while providing technical leadership across the organisation.

Key Responsibilities

• Define and implement security‑by‑design principles across cloud, on‑premise, endpoint, and network environments.
• Embed security into CI/CD pipelines (DevSecOps) in collaboration with engineering and DevOps teams.
• Conduct and lead security risk assessments, ensuring mitigation strategies are implemented across new applications, platforms, and third‑party tools.
• Own and enhance cloud, platform, and endpoint security posture, including monitoring for configuration drift and vulnerabilities.
• Develop and enforce hardening standards across endpoints (Windows/macOS), servers, and compute environments.
• Support and partner with teams across IAM, GRC, DLP, SOC, and Vulnerability Management to strengthen overall security capability.
• Own and manage security tools related to the role and discipline, e.g. SAST Tooling.
• Drive automation, AI usage and tooling improvements to increase efficiency and reduce risk.
• Provide support to the business as it relates to solution design, project and change management security.
• Provide technical leadership and incident response support during security events.
• Collaborate with IT, DevOps, Software, Networks and Infra teams to embed security practices.
• Stay current on emerging threats, vulnerabilities, and security technologies.

Required Qualifications

• Bachelor's degree in computer science, Cybersecurity, or related field.
• 8+ years of experience in cybersecurity or information security roles.
• Experience designing and implementing enterprise‑scale security principles.
• Proven ability to influence and work with cross‑functional teams and departments.
• Hands‑on experience with end user and cloud security (Azure, AWS, Windows and MAC O/S).
• Strong technical knowledge of software development (CI/CD pipeline), cloud and security by design ways of working.
• Experience with security frameworks (NIST, ISO/IEC 27001, NIS2 TISAX).

Key Skills Required

• Security architecture & Zero Trust principles.
• Cloud security (Azure & AWS).
• DevSecOps and CI/CD security integration (SDLC).
• Security frameworks & compliance (ISO 27001, NIST, NIS2, TISAX).
• Workflow Automation & AI adoption.
• Stakeholder management & technical leadership.

Tool Experience

• Microsoft Azure (E5 Toolset) – Defender for Cloud, Defender for Endpoint, Defender for Identity, Microsoft Purview.
• AWS Security Hub (CSPM), Amazon GuardDuty, AWS Inspector, AWS Identity Analyzer, AWS Config.
• SonarCloud (SAST Tooling).
• Atlassian Cloud (Confluence/Jira).
• Vanta (GRC).
• Strong Microsoft Office 365 knowledge.

Certifications (Desired)

• ISC² – CISSP/CCSP/CSSLP.
• AWS Certified Security – Specialty.
• Microsoft Azure Security Engineer Associate (AZ‑500).
• Microsoft Cybersecurity Architect Expert (SC‑100).
• GIAC GSSP / GCSA.

New hires at Cubic³ are required to work onsite five days a week during their six‑month probation period to get to know the company, their team, and our ways of working. After probation, we offer a flexible arrangement of up to eight work‑from‑home days per month, provided it aligns with business needs and performance standards. This arrangement is not a given for all roles.

Cubic³ is an equal opportunities employer and committed to fostering a diverse and inclusive workplace.