Top Cyber Security Jobs in Belfast

Support multinational security operations in high-threat environments by securing checkpoints, conducting convoy operations, protecting humanitarian efforts, delivering relief supplies, and coordinating with NGOs, government agencies, and community leaders. The role requires combat experience, weapons proficiency, active-duty military experience, and the ability to operate alongside multinational teams in conflict zones.

The Head of Data Ops and Systems leads technology infrastructure and data capabilities, ensuring systems are reliable and secure while overseeing data management and compliance.

Lead and expand the VAR channel strategy in EMEA, managing partner relationships, driving revenue, and collaborating with sales and marketing teams.

The Backend Software Engineer will manage the lifecycle of short-term projects, perform reliability analysis on applications, and interface with teams to deliver features.

Own product marketing strategy for cybersecurity MDR/XDR solutions, including positioning, value propositions, go-to-market execution, sales enablement, content strategy, competitive intelligence, and product launch support. Translate complex cybersecurity capabilities into compelling business value for technical and business buyers, collaborate across Product, Commercial, and Security Operations, and measure messaging effectiveness. The role requires deep cybersecurity market knowledge, strong communication, stakeholder management, and fluent English and C2 German.

Own the strategy and roadmap for Managed Detection and Response, Endpoint Detection and Response, and Incident Response products. Lead customer discovery, translate needs into product opportunities, and collaborate with engineering, design, security operations, marketing, sales, and customer success. Manage EDR and MDR vendor relationships, support go-to-market launches, improve product processes, and drive innovation based on cybersecurity trends and data.

Lead Pantheon's security operations strategy and roadmap, including SIEM/SOAR architecture, threat detection, incident response, threat intelligence, automation, vulnerability and abuse management, and operational resilience. Own security operations compliance for GDPR, NIS2, SOC 2, PCI DSS, and NIST CSF. Lead major incident response, executive reporting, cross-functional initiatives, and mentorship while remaining hands-on with cloud-native security, detection engineering, and security automation.

Patrols university campuses on foot and by vehicle, assists with control-room operations, responds to fire and intruder alarms, and provides immediate support during incidents or crimes. The role includes welfare support, signposting to agencies, and reassuring staff and students. Candidates need strong communication and listening skills, computer literacy, composure under pressure, attention to detail, and a full driving licence.

Drive new business in the DACH region through cold outreach, demoing Keeper products, managing the full sales cycle from prospecting to close, maintaining accurate Salesforce pipeline, and consistently meeting quota while communicating in German and English.

Support and advance the application security program: review designs and architecture, advise engineering/DevOps on secure SDLC practices, run static/dynamic scans and manual assessments, triage external pentest and bug-bounty findings, and drive security process improvements.

Enforce the Ship Security Plan and support the Ship Security Officer: conduct security assessments and inspections, manage access control and screening (X-ray, metal detectors), lead security team and drills, investigate incidents, maintain security equipment and filing, coordinate with port authorities, and respond as first responder/active assailant team leader.

Support threat intelligence, incident analysis/response, penetration test coordination, vulnerability scanning and remediation tracking, security tool administration, dashboard maintenance, and adherence to security policies while learning and developing cybersecurity skills.

Design, automate, and maintain security controls, detection, and remediation systems; evaluate security technologies; perform risk assessments and threat models; partner with engineering for secure development; lead incident response and support compliance (SOC 2, ISO 27001); manage bug bounty and vulnerability disclosure programs.

Lead security engineering across web apps, APIs, cloud (AWS/OCI), Kubernetes, and on-prem systems. Build CI/CD security, secure genomic and PHI/PII pipelines (HIPAA), run monitoring and incident response, prepare for HIPAA/SOC2/ISO27001 audits, perform pentesting/vulnerability discovery, improve logging/SIEM, and drive remediation with engineering and DevOps while raising company-wide security awareness.

Secure Aptos core infrastructure and products via design reviews, code audits, penetration tests; build security tools and mitigations; define secure operational practices; advise engineers; and triage bug bounty reports.

Design and implement secure cloud-based solutions and DevSecOps practices. Automate security tooling in CI pipelines, perform threat modelling and vulnerability management, support penetration testing, review security outputs, convert findings into actionable work, verify secure architectures, and coach junior team members.

Lead Security Engineer responsible for directing security engineering and testing across platforms and services, defining testing methodology and tools, performing penetration testing and secure code assessment, embedding security in CI/CD pipelines, threat modelling, and mentoring junior engineers while liaising with stakeholders and customers. Role requires defence experience and an active security clearance.

Lead research and advisory on application security for enterprise applications (ERP/CRM). Produce thought leadership, client-facing insights, presentations, market analysis, and support sales. Mentor analysts, drive research agenda, improve processes, and advise CIOs on security strategy, vendor evaluation, metrics, and vulnerability testing across major vendors (SAP, Salesforce, Workday, Oracle).

Lead security engineering for Hummingbird's infrastructure: harden AWS (Terraform), manage vulnerability and dependency tooling, develop threat intelligence, own incident response and disaster recovery, and shape long-term security posture while collaborating across a small senior engineering team.

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.

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.

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.

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.

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.

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.