This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Application & Infrastructure Security Engineer in Ireland.

In this role, you will take full ownership of securing a modern, high-traffic digital platform across its entire technology stack—from cloud infrastructure to application layers. You will operate in a fast-paced, high-growth environment where security is a core pillar of product reliability and user trust. Working closely with engineering, DevOps, and product teams, you will proactively identify risks, design robust defenses, and respond to emerging threats. This is a hands-on, high-impact role that combines strategic oversight with deep technical execution. You will also contribute to building a strong security culture while shaping scalable practices in a dynamic and evolving ecosystem.

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Accountabilities:

Own and continuously improve the end-to-end security posture across infrastructure, APIs, and applications
Identify, assess, and remediate vulnerabilities across frontend, backend, and cloud environments
Design and enforce security controls, including WAF configurations, bot mitigation, and rate-limiting strategies
Harden cloud infrastructure by implementing best practices in access control, network security, and system configuration
Lead threat modeling sessions for new features to proactively identify and mitigate risks
Monitor, investigate, and respond to security incidents, ensuring timely resolution and root-cause analysis
Conduct penetration testing and vulnerability assessments, prioritizing remediation based on business impact
Define and enforce HTTP security policies and standards across systems
Develop and maintain incident response playbooks, including DDoS mitigation strategies
Collaborate with engineering teams to embed secure coding practices and review sensitive code changes
Manage vulnerability disclosure processes and external security reports
Produce clear security documentation, reports, and risk assessments for stakeholders

Requirements:

8+ years of experience in application, infrastructure, or web security roles
Deep knowledge of common security vulnerabilities (e.g., OWASP Top 10) and mitigation techniques
Strong experience with cloud security, particularly in AWS environments (IAM, VPC, monitoring tools, etc.)
Expertise in web application security, including API protection, authentication mechanisms, and frontend/backend risks
Hands-on experience with security tools such as Burp Suite, OWASP ZAP, or similar
Proven ability to detect and mitigate DDoS and other large-scale attack vectors
Experience with SIEM systems, log analysis, and incident response workflows
Knowledge of security frameworks and compliance standards (e.g., ISO 27001, SOC 2, GDPR)
Familiarity with integrating security testing into CI/CD pipelines (SAST, DAST, SCA)
Strong communication skills, with the ability to explain technical risks to non-technical stakeholders
Detail-oriented mindset with strong analytical and problem-solving skills

Benefits:

Competitive salary package aligned with experience and expertise
Fully remote work environment with flexible working hours
Opportunity to work on a high-scale, innovative platform with real-world impact
Collaborative and fast-moving team culture
Professional growth opportunities and exposure to advanced security challenges
Inclusive and diverse workplace environment

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How Jobgether works:

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

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Senior Application & Infrastructure Security Engineer

Benefits

Job Description