Top Cybersecurity Jobs in Portugal

Own full-cycle technical recruiting across Engineering, Product, and Design. Build diverse talent pipelines, advise hiring managers and senior leaders, use AI-assisted recruiting tools, improve recruiting processes, manage talent communities, and report on hiring metrics. The role emphasizes stakeholder influence, candidate advocacy, sourcing hard-to-find talent, and delivering strong candidate and hiring-manager experiences.

Own product and protocol security across Jito’s Solana-based products. Responsibilities include threat modeling, secure design and code reviews, deployment hardening, internal audits, onchain monitoring, bug bounty operations, remediation tracking, AI-assisted security testing, and key and asset risk management. The role requires production software engineering experience, strong application security expertise, security automation skills, and familiarity with Web3, crypto, or DeFi.

Design, implement, and maintain distributed software systems supporting Cloudflare’s application security products, including Rate Limiting and Web Application Firewall. Participate across the software development lifecycle, write automated tests, monitor production deployments, debug complex systems, review code, collaborate with security and infrastructure teams, and mentor colleagues. The role involves Rust and Go development, databases, Docker, Kubernetes, and maintaining reliable, fault-tolerant systems at scale, with possible on-call responsibilities.

Develop and maintain Python-based automated tests for functional and software security validation. Integrate testing into CI/CD pipelines and support authentication, authorization, API security, vulnerability, and robustness testing. Collaborate with engineering and security teams on secure-by-design development, DevSecOps, security automation, and AI-assisted testing for optical networking solutions.

Supports cybersecurity compliance across organizational processes and products by identifying compliance gaps, maintaining policies and controls, participating in audits and assessments, preparing evidence, and interpreting cybersecurity requirements. The role also promotes security awareness through training, guidance, knowledge-sharing sessions, and development of awareness content while coordinating with technical teams and stakeholders.

Lead end-to-end IT infrastructure projects from planning through closure. Coordinate technical teams, suppliers, and stakeholders while managing schedules, budgets, risks, issues, governance, reporting, and quality delivery. The role requires experience in structured IT environments, Waterfall methodologies, infrastructure technologies, and project management tools. Public sector, EasyVista, and PRINCE2, PMP, or ITIL Foundation experience are valued.

Lead application security across product engineering, infrastructure, and software development. Responsibilities include security architecture, threat modeling, design reviews, vulnerability assessments, penetration testing, code reviews, privacy and regulatory design, security tooling, and developer education. The role focuses on securing cloud-native, distributed banking systems and improving security posture through strategic planning, automation, and cross-functional collaboration.

Investigate fraud, money laundering, account abuse, cheating, and security threats. Manage transaction queues, review documentation, conduct deep-dive investigations, identify coordinated abuse patterns, collaborate cross-functionally, and report fraud trends. Recommend process and tool enhancements while maintaining strong customer support, regulatory compliance, and platform integrity.

Define and drive security architecture across cloud, application, network, and edge environments. Establish security requirements, assess controls, manage vulnerability and penetration-testing remediation, strengthen threat detection using honeypots and deception technology, and lead SaaS and third-party application security assurance. The role partners with engineering teams, application owners, vendors, and business stakeholders to translate risk into actionable security improvements and embed security throughout the application lifecycle.

Own identity and endpoint security across the company, including SSO, MFA, access provisioning, access reviews, MDM, EDR, device security baselines, and IT workflows. Respond to identity and endpoint incidents, assess vendor and SaaS integration risks, support secure AI tool adoption, automate security processes, and help develop scalable security policies and controls.

Design, build, and maintain Chromium-based browser components in C++ across multiple layers. Harden browser isolation and network infrastructure using networking and HTTP security expertise. Build AI agent and MCP integrations, develop supporting tools in Python or Rust, and deploy cloud infrastructure with AWS, GCP, Kubernetes, and Terraform. Optimize high-scale systems and collaborate with product, security, and AI teams.

Monitor and investigate security alerts across SIEM, EDR, cloud, network, and endpoint environments. Analyze logs, conduct alert triage, support incident response and remediation, identify root causes, tune detections, reduce false positives, prepare security reports, and improve SOC procedures. The role operates within a global 24/7 Security Operations Centre and requires collaboration with incident response and cybersecurity teams.

Administer and optimize SIEM platforms, develop and tune threat-detection capabilities, manage detection use cases, onboard security data sources, and improve monitoring effectiveness. The role collaborates with threat intelligence and incident response teams, supports cloud security architecture, builds dashboards and metrics, reduces false positives, and maintains SOC procedures and documentation across multiple customer environments.

Owns an end-to-end product area within Menlo Security’s agent runtime security platform. Responsibilities include researching agent security, identity, protocols, and competitors; writing PRDs and acceptance criteria; managing backlogs; partnering with engineering through releases; prototyping with AI tools, MCP clients, and agent runtimes; tracking adoption and success metrics; enabling support and solutions engineering; and supporting customers, sales, marketing, and competitive positioning.

Lead application security initiatives across product engineering and infrastructure teams. Responsibilities include security design, threat modeling, vulnerability assessments, penetration testing, code reviews, privacy and regulatory design reviews, security tooling development, and developer education. The role focuses on securing cloud-native banking products, automating security processes, and improving the organization’s security posture through cross-functional collaboration.

Lead application security efforts across product and infrastructure teams. Responsibilities include security design reviews, threat modeling, vulnerability assessments, penetration testing, code reviews, privacy and regulatory design reviews, security tooling development, and developer education. The role focuses on securing cloud-native, distributed banking applications and improving security posture through strategic cross-functional collaboration.

Protect Thought Machine’s cloud banking products by designing application security controls, conducting threat modeling, vulnerability assessments, penetration testing, code reviews, and security design reviews. The role collaborates with development and infrastructure teams, automates security tooling, advises on privacy and regulatory requirements, and mentors engineers throughout the software development lifecycle.

Designs and implements technical and operational security controls for cloud and on-premises environments. The role includes automating continuous control assurance, supporting ISO 27001, ISO 22301, PCI DSS, and SOC 2 certifications, conducting threat and risk assessments, maintaining security and business continuity management systems, and explaining security approaches to clients and auditors.

Design and implement technical and operational security controls for cloud and distributed systems. Automate control assurance, support certifications including ISO 27001, ISO 22301, PCI-DSS, and SOC 2, conduct threat and risk assessments, maintain security and business continuity management systems, and communicate security solutions to clients, auditors, and internal stakeholders.

Develop and implement security controls across backend systems, investigate incidents and anomalies, triage bug bounty submissions, conduct threat hunting, improve remediation processes, maintain security policies, and support access governance. The role requires hands-on coding, strong PHP knowledge, security awareness, clear communication with nontechnical teams, and ownership across a broad technology stack.

Evaluate and improve application security architecture, processes, tools, and documentation. Conduct security design reviews, code reviews, threat modeling, and security testing for applications, AI systems, LLM applications, and AI agents. Identify vulnerabilities and architecture gaps, collaborate with development and product teams on remediation, implement security best practices, and assist with security incident response.

Own a financial product vertical end to end, including strategy, metrics, roadmap, technical design, delivery, and launch. Partner with engineering on APIs, data flows, ledgering, reconciliation, reliability, security, and scalability. Embed regulatory requirements across KYC, transaction monitoring, limits, privacy, and licensing. Apply AI and LLMs with evaluation, safeguards, human oversight, and failure handling while coordinating Engineering, Design, Compliance, Operations, Treasury, and Finance.

Operate and improve endpoint security, Microsoft 365, Entra ID, Intune, JAMF, vulnerability management, SIEM monitoring, and internal IT services. Responsibilities include alert triage, incident response, access governance, device compliance, remediation tracking, service workflow improvement, automation, secure AI enablement, vendor coordination, documentation, and operational reporting. The role also provides deputy coverage for the CISO and drives cost reduction, standardization, and continuous improvement across IT and security operations.

Own the technical sales cycle from demonstrations and proof-of-concept engagements through technical close. Partner with Sales, Product, and Engineering to develop deal strategies, deliver tailored technical presentations, understand customer security workflows, recommend architectures, address objections, and communicate business value. Represent the company at customer meetings, events, and conferences while serving as a trusted technical advisor to security and engineering stakeholders.

Own technical direction and execution for major products and systems. Design scalable, reliable architectures across backend, frontend, APIs, databases, and infrastructure; write production code; lead architecture decisions; resolve complex engineering problems; improve testing, security, observability, and development practices; and mentor engineers across teams.