Top Cyber Security Jobs in Belfast

Design, implement and improve security tools and platforms across cloud, SaaS and enterprise environments. Evaluate and adopt new and AI-enabled security technologies, support observability and telemetry, lead technical incident investigations, ensure compliance with security architecture and governance, and influence stakeholders to embed security best practices.

Lead and improve ZODL security posture, manage incident response, coordinate external audits, advise staff on operational and personal security, prioritize mitigations, recruit security talent, and collaborate with engineering and research to secure Zcash software and protocols.

Lead design and implementation of security tooling, harden cloud and IT infrastructure, detect and respond to incidents using SIEM/EDR/SOAR, perform threat hunting, administer IAM and monitoring, contribute to policies and forensics, and partner with engineering on AI-related security risks and automation.

Hands-on role to administer Microsoft identity, endpoint and cloud security (Entra ID, Intune, Defender, Azure). Responsibilities include EDR management, vulnerability triage, patching (including out-of-hours), incident support, compliance (ISO27001/SOC2), automation with PowerShell, and documentation to improve security posture and operational resilience.

Perform information security and risk activities including implementing and enforcing security controls, incident response, threat management, vulnerability scanning, malware management, intrusion detection, risk assessments, and backup/disaster recovery planning. Work on moderate-scope projects with general guidance and apply judgment within defined parameters.

Own and scale Mozilla's web bug bounty program; triage and validate reports; drive end-to-end vulnerability remediation; perform targeted code reviews (JavaScript, Python); collaborate with SIRT on incidents; build tooling and KPIs to improve triage and program insight; engage external researchers and platforms.

Administer and maintain endpoint security platforms (Tanium & SentinelOne), deploy and manage Tanium modules, monitor performance, build dashboards and reports, perform audits and compliance checks, troubleshoot endpoint visibility/patching/deployments, integrate endpoint tools with IT/security systems, and provide training and support.

Lead and mature Mozilla's ISMS and compliance programs (ISO 27001 and SOC 2 Type 2). Manage SoA, risk treatment, audits, policy lifecycle, gap remediation, internal audits, and cross-functional control ownership while advising security leadership on certification readiness and compliance strategy.

Perform business analysis and security-focused system analysis: elicit and standardize requirements, write user stories and traceability matrices, map requirements to APIs/JSON, coordinate UAT/BUAT, design and evaluate security protocols, conduct security assessments, collaborate with dev/QA/stakeholders, and produce status and security documentation.

Design and manage GCP infrastructure using Terraform; architect compute, storage, and networking; integrate Vertex AI and BigQuery for ML and analytics; implement Wiz Security Control and Policies-as-Code (Rego) for continuous security and compliance; build automation and tooling; perform security assessments and collaborate with cross-functional teams.

Architect and manage GCP infrastructure using Terraform; integrate Vertex AI and BigQuery for ML/data workloads; implement Policies-as-Code (Rego/OPA) and Wiz for continuous security monitoring; create automation and tooling; enforce GCP security, IAM, encryption and compliance; collaborate with data scientists, engineers, and security teams.

Design, implement, and improve security controls across Kubernetes, cloud-native, and datacentre infrastructure. Secure networks and firewalls, integrate DevSecOps controls into CI/CD, lead vulnerability management, build detection/response capabilities, automate security workflows, and support incident response and threat hunting for GPU-accelerated and AI/ML platforms.

Lead and perform security risk assessments, document and remediate risks, support audits and compliance (ISO 27001, GDPR), maintain security policies, embed GRC controls, advise stakeholders, support GRC tool rollouts, and deliver security awareness and guidance across the organisation.

Lead GCP cloud security by designing secure architectures, enforcing IAM and least-privilege, deploying GCP-native detection tools, embedding DevSecOps in CI/CD, managing vulnerabilities and compliance, and training engineering teams.

Design, implement, and manage GCP infrastructure using Terraform; architect GCP services and BigQuery storage; integrate Vertex AI and Wiz Security Control for ML and continuous security monitoring; build automation and tooling; enforce GCP security best practices, Policies-as-Code, and perform regular security assessments and audits while collaborating with cross-functional teams.

Lead technical response to security events across Twilio's global cloud infrastructure: triage, contain, remediate, document incidents, build runbooks and automations, drive post-incident improvements, participate in on-call rotation and RCAs, and collaborate with R&D to scale threat mitigation and incident response capabilities.

Lead AWS security architecture and governance, monitor and respond to incidents, manage risks and vulnerabilities, ensure compliance (ISO27001, SOC2, PCI-DSS, GDPR), automate security workflows, mentor teams, and integrate security across development and operations.

Senior technical leader driving pre-sales architecture and partner technical strategy for Qualys-based enterprise security solutions. Lead executive workshops, complex POCs, partner enablement, solution adoption roadmaps, and mentor junior architects while influencing product and partner-delivered managed services.

Lead and deliver complex OT security engagements across ICS and embedded industrial devices. Perform hands-on testing, threat modeling, and Purdue-model network reviews, translate technical findings to business risk, mentor junior consultants, contribute OT research and methodology, and support pre-sales. Travel to industrial sites (~30%).

Design, implement, and manage GCP infrastructure using Terraform. Architect GCP services, integrate Vertex AI and BigQuery, implement Policies-as-Code (Rego), integrate Wiz for continuous security, automate tooling and scripts, and perform security assessments and compliance.

Design, implement, and manage GCP infrastructure using Terraform; architect compute, storage, and networking; integrate Vertex AI and BigQuery; implement Wiz Security Control and policies-as-code (Rego); automate operations with Python/Bash; enforce security, IAM, encryption, and compliance.

Design and deliver security solutions by translating customer objectives into technical strategies. Build visualizations, custom scripts and API integrations, analyze network topologies and application traffic, develop signatures and tooling, support incident response, threat hunting, and customer enablement to reduce mean-time-to-investigate and improve detection and response outcomes.

Lead design and implementation of secure enterprise AI architectures and guardrails. Architect AI vetting and agent identity/posture management, collaborate cross-functionally, write secure code and IaC, mentor engineers, and advise leadership on AI security risks.

Lead embedding security into software delivery by partnering with engineering teams to improve CI/CD security, triage and remediate findings, design secure-by-default patterns, automate security validation and evidence generation, facilitate threat modeling, and provide reusable templates and guidance to reduce risk at scale.

Lead and execute multi-vector red team campaigns including adversarial emulation, post-exploitation, social engineering, and physical testing. Develop tools, exploit vulnerabilities, produce comprehensive technical reports with remediation guidance, present findings to technical and non-technical stakeholders, mentor team members, support business development, and contribute research to the security community. Requires significant travel.