Top Cyber Security Jobs in Dublin

Lead a small senior engineering team to design, build, and operate enterprise-scale infrastructure platforms. Own architecture, production code, on-call incident response, observability, and AI-native engineering practices. Drive automation, set engineering standards and guardrails for agentic AI, measure outcomes, and partner with stakeholders to ensure reliability, security, and cost-effectiveness.

Supports technical or technology regulatory programs by maintaining schedules, tracking milestones, dependencies, risks, and deliverables; coordinating stakeholders; preparing updates, dashboards, and documentation; analyzing program data; and identifying process improvements. The intern will communicate technical information clearly, support governance and execution, and work onsite in Mastercard’s Dublin Tech Hub at least three days weekly during the summer 2027 internship.

Lead Cloud Security Engineer responsible for designing and implementing secure cloud infrastructure, controls, threat models, and risk assessments. The role reviews infrastructure-as-code, develops security controls, analyzes vulnerabilities, integrates with security operations and access management, and writes or reviews production code. It requires expertise in public cloud platforms, Kubernetes, cloud security posture management, infrastructure-as-code, enterprise security architecture, and validated use of AI-assisted security workflows.

Develop, test, deploy, and maintain cloud security software and tooling for AWS public cloud environments. Build governance, protection, auditing, monitoring, remediation, and reporting solutions; automate security controls; scale services; conduct design and code reviews; and manage project deliverables. Collaborate across business functions, apply infrastructure as code and CI/CD practices, and responsibly validate enterprise-authorized AI-assisted security analysis and code recommendations.

Lead cloud security strategy for Data and AI/ML services on GCP. Assess technology controls and risks, advise teams on secure cloud architectures, review infrastructure-as-code, maintain security documentation, and collaborate with security operations, threat intelligence, IAM, and network security teams. The role also supports agile security initiatives, mentors junior engineers, and promotes secure and compliant public-cloud implementations.

Lead secure software engineering efforts by designing enterprise security solutions, developing and reviewing production code, conducting threat modeling and vulnerability and penetration testing, and improving security controls. The role uses authorized AI to accelerate security analysis and documentation while validating outputs, protecting sensitive data, and maintaining auditability. It also partners with stakeholders to address vulnerabilities and strengthen resiliency throughout the SDLC.

Designs and implements enterprise application security solutions, writes secure production code, performs code reviews, monitors vulnerabilities and regulatory guidance, and advises stakeholders on security risks. Builds scalable AWS cloud solutions using infrastructure as code, maintains audit-defensible controls, and applies AI-assisted development tools safely. The role also supports secure SDLC, CI/CD, application resiliency, and collaboration with senior business leaders across complex technology environments.

Build and operate detection and response systems for Notion’s cloud-native environment. Responsibilities include developing high-signal detections, maintaining detection platforms, automating triage and investigation, applying threat intelligence, participating in incident response, measuring detection effectiveness, and supporting on-call operations. The role also involves collaboration with engineering and infrastructure teams and may include LLM-based security workflows, detection-as-code, threat hunting, and adversary emulation.

Leads a security engineering team supporting Mastercard’s blockchain, cryptocurrency, prepaid, cardholder services, and payment optimization programs. The role owns security capability development, architecture guidance, security reviews, risk management, compliance, and security-by-design practices. It requires advising engineering and business leaders, managing security risks, and applying cryptography, application security, identity management, data protection, blockchain security, and regulatory frameworks including SOC 2, PCI DSS, and DORA.

Leads Mastercard’s security engineering team supporting cryptocurrency, blockchain, prepaid, cardholder services, and payment optimization programs. The role manages team development, shapes security roadmaps, advises engineering and business leaders, conducts security reviews, defines secure architecture and requirements, manages security risks, and ensures regulatory compliance. It requires expertise in cryptography, blockchain security, application security, secure software design, identity and access management, and frameworks including SOC 2, PCI DSS, DORA, and CRI profiles.

Leads Mastercard’s security engineering team supporting blockchain, cryptocurrency, prepaid, cardholder services, and payment optimization programs. The role manages team development, security reviews, risk and compliance programs, security architecture, cryptography, application security, identity and access management, and security-by-design practices. It advises engineering and business leaders, defines security requirements, and ensures digital payment products meet regulatory, industry, and customer-trust standards.

Leads a security engineering team supporting blockchain, cryptocurrency, prepaid, cardholder, and payment optimization programs. Establishes security engineering practices, guides secure architecture and security-by-design, conducts security reviews, manages technology risks, and ensures regulatory compliance. Advises engineering and business leaders on cryptography, application security, network design, data protection, identity and access management, and blockchain security. Develops team capabilities and influences security standards, controls, and architectural patterns across large-scale digital payment solutions.

Leads a security engineering team supporting blockchain, cryptocurrency, prepaid, cardholder services, and payment optimization programs. Establishes security roadmaps, reviews architectures, defines security requirements, manages risk and compliance, and advises engineering and business leaders. The role develops team capabilities, promotes secure-by-design practices, applies cryptographic and application security expertise, and ensures alignment with standards including SOC 2, PCI DSS, DORA, and CRI profiles.

Leads a security engineering team supporting blockchain, cryptocurrency, payment, prepaid, and digital solutions programs. Develops security roadmaps, guides secure architecture and software design, conducts security reviews, manages risk and compliance, and advises engineering and business leaders. The role requires expertise in application security, cryptography, blockchain security, security standards, regulatory frameworks, and people leadership.

Leads a security engineering team supporting blockchain, cryptocurrency, payment, prepaid, and digital solutions programs. Establishes security engineering practices, advises engineering and business leaders, conducts security reviews, manages risks, and shapes security requirements and architecture. The role requires expertise in application security, cryptography, blockchain security, secure software design, compliance frameworks, threat landscapes, identity and access management, and security governance.

Leads a security engineering team supporting blockchain, cryptocurrency, prepaid, cardholder services, and payment optimization programs. Develops security roadmaps, advises engineering and business leaders, conducts security reviews, defines security requirements and architectural patterns, manages risk and compliance, and promotes secure-by-design practices. The role requires expertise in application security, cryptography, blockchain security, regulatory frameworks, security architecture, and people leadership.

Leads security engineering for blockchain, cryptocurrency, and digital payment solutions. Manages security engineers, develops security capabilities, advises technical and business leaders, reviews architectures, defines security requirements, manages risk and compliance, and advances secure-by-design practices. Requires expertise in cryptography, blockchain security, application security, security protocols, identity and access management, and frameworks including SOC 2, PCI DSS, DORA, and CRI profiles.

Leads a security engineering team supporting blockchain, cryptocurrency, prepaid, cardholder services, and payment optimization programs. Establishes security practices, advises engineering and business leaders, oversees security reviews, manages risks, and develops security requirements and architectural patterns. The role requires expertise in application security, cryptography, blockchain security, secure software design, regulatory compliance, and risk-based security frameworks.

Leads a security engineering team supporting blockchain, cryptocurrency, prepaid, cardholder services, and payment optimization programs. Establishes security engineering practices, advises technical and business leaders, guides secure architecture and design, conducts security reviews, manages technology risk, and ensures compliance with regulatory and industry standards. The role requires expertise in cryptography, blockchain security, application security, secure software development, cybersecurity governance, and risk-based compliance frameworks.

Leads cloud security engineering by designing, developing, and scaling AWS security solutions for governance, monitoring, auditing, remediation, and reporting. Builds and maintains software and infrastructure-as-code tooling, performs design and code reviews, validates AI-assisted security recommendations, manages deliverables, engages stakeholders, and mentors junior engineers while advancing secure and resilient engineering practices.

Leads cloud security strategy and control design across AWS, Azure, and GCP. Establishes policy-as-code guardrails, secures infrastructure-as-code pipelines, manages cloud risk, and drives automation, governance, audit readiness, incident preparedness, and remediation. Partners with senior stakeholders, oversees security tooling and vendor evaluations, reports control effectiveness, and mentors a matrixed team of security engineers and risk analysts.

Leads Partner Technology Strategists and shapes strategic partners’ technology roadmaps across the Microsoft Cloud. Connects technical investments to sales opportunities, revenue growth, cloud consumption, marketplace outcomes, and customer value. Develops scalable, repeatable partner solutions, prioritizes high-impact opportunities, coaches teams, and builds relationships with partner executives, Microsoft sales teams, solution specialists, and architects.

Design, build, and operate enterprise-scale infrastructure platforms; write and review production code; own reliability, performance, security, and cost; run on-call rotations and respond to incidents; use AI-native engineering practices to accelerate development and automation; collaborate on technical decisions and decompose ambiguous problems into production-ready systems.

Lead a small senior team designing, building, and operating enterprise-scale infrastructure platforms. Own architecture through production, write and review production code, run on-call rotations, establish AI-native engineering practices, ensure security and reliability, decompose ambiguous problems, measure outcomes, and collaborate with stakeholders to drive scalable, cost-effective infrastructure solutions.

Build BLP’s core software across infrastructure, backend, machine learning, and product extension platforms. Responsibilities include operating secure and observable cloud infrastructure, developing performant distributed systems, applying AI to business problems, and enabling customer process automation. The role emphasizes formal reasoning, correctness by construction, maintainable systems, type systems, and functional programming. Work is available onsite in Zurich or remotely within Europe.