Sr. Penetration Testing and Cloud Automation Engineer page is loadedSr. Penetration Testing and Cloud Automation EngineerApply locations Cork, Ireland time type Full time posted on Posted Today job requisition id R12817About Us:We are the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on Proofpoint to protect their organizations. We’re driven by a mission to stay ahead of bad actors and safeguard the digital world. Join us in our pursuit to defend data and protect people.How We Work:At Proofpoint, you’ll be part of a global team that breaks barriers to redefine cybersecurity, guided by our BRAVE core values: Bold in how we dream and innovate, Responsive to feedback, challenges, and opportunities, Accountable for results and best-in-class outcomes, Visionary in future-focused problem-solving, Exceptional in execution and impact.Corporate OverviewProofpoint is a leading cybersecurity company protecting organizations’ greatest assets and biggest risks: vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web.We are singularly devoted to helping our customers protect their greatest assets and biggest security risk: their people. That’s why we’re a leader in next-generation cybersecurity. Protection Starts with People. #Proofpoint.The RoleWe are looking for a highly skilled and experienced Senior Security Engineer with a strong focus on Penetration Testing and Cloud Security Automation/DevSecOps to join our Security Engineering team.In this role, you’ll lead internal penetration testing efforts and red-team style assessments of critical infrastructure and applications, enabling secure-by-default infrastructure and secure software delivery pipelines. You will also apply your expertise in scripting, infrastructure-as-code (IaC), and cloud-native security practices to improve posture, visibility, and response.Based in Cork, Ireland this key role will drive key Cloud/Data Centre security initiatives for Proofpoint Product portfolio. This is a high-impact role where you’ll help define and execute both the offensive testing strategy and defensive automation roadmap. You’ll be a go-to expert in uncovering vulnerabilities and building durable controls to prevent their exploitation at scale.Key ResponsibilitiesPenetration Testing & Offensive Security:Design and execute targeted internal red team / penetration tests across infrastructure, SaaS, APIs, and cloud environmentsPerform manual and automated testing to simulate real-world attack scenarios, including lateral movement and privilege escalationCollaborate with engineering teams to remediate findings through secure architecture and configurationPerform application security testing (black-box, grey-box, and white-box), including SAST, DAST, and manual reviewConduct red-team and purple-team exercises to simulate attacker behaviours and validate detection/resilience capabilitiesSupport the development of exploit POCs, custom tooling, and automation pipelines for recurring testing scenariosSecurity Automation & DevSecOps: Architect and build scalable cloud security automation pipelines from first principles, Develop and maintain Terraform modules, CI/CD integrations, and IaC security gates, Build and operate security data pipelines to ingest and analyse scan and detection data at scaleArchitect, build, and maintain security data pipelines to ingest, normalize, and analyse telemetry at scaleLead or contribute to threat modelling, risk assessments, and security architecture reviews.What You Bring to the TeamExtensive experience in Offensive Security, DevSecOps, security engineering rolesPenetration testing experience across infrastructure, cloud services, and web applicationsFamiliarity with tools such as: Burp Suite, Metasploit, Nmap, OSINT, BloodHound, Prowler, Kube-hunter, or custom scriptsSolid understanding of MITRE ATT&CK, OWASP Top 10, CWE, and cloud attack pathsThorough understanding of AWS, Azure, or GCP security models, IAM, and threat surfacesProven ability to build cloud-native security automation using Terraform (IaC), CI/CD tools and pipelines, Python/Go/BashExcellent communication and collaboration skills with the ability to drive cross-functional initiatives.Beneficial ExperienceExperience with SIEMs, SOAR, or threat intel platformsExperience with container security (e.g., Docker, Kubernetes, Falco, Trivy)Exposure to managing Network IPS/IDS systems (such as Stamus/SuricataCertifications: OSCP, OSWE, OSEP, CRTO, GXPN or equivalent are a plusWhy ProofpointProtecting people is at the heart of our award-winning lineup of cybersecurity solutions, and the people who work here are the key to our success. We’re a customer-focused and a driven-to-win organization with leading-edge products. We are an inclusive, diverse, multinational company that believes in culture fit, but more importantly ‘culture-add’, and we strongly encourage people from all walks of life to apply.We believe in hiring the best and the brightest to help cultivate our culture of collaboration and appreciation. Apply today and explore your future at Proofpoint! #LifeAtProofpoint#LI-CB1Why Proofpoint? At Proofpoint, we believe that an exceptional career experience includes a comprehensive compensation and benefits package. Here are just a few reasons you’ll love working with us:• Competitive compensation• Comprehensive benefits• Learning & Development: We are committed to the growth and development of our team members, offering a range of programs including leadership and professional development workshops, stretch project assignments, and mentoring opportunities to help employees reach their full potential.• Flexible work environment: (Remote options, hybrid schedules, flexible hours, etc.).• Annual wellness and community outreach days• Always on recognition for your contributions• Global collaboration and networking opportunitiesOur Culture:Our culture is rooted in values that inspire belonging, empower purpose and drive success-every day, for everyone. We encourage applications from individuals of all backgrounds, experiences, and perspectives. If you need accommodation during the application or interview process, please reach out to accessibility@proofpoint.com. How to Apply Interested? Submit your application here https://www.proofpoint.com/us/company/careers. We can’t wait to hear from you!Proofpoint Best Places to Work AwardsProofpoint has been honored with six Best Places to Work Awards in 2024 by workplace culture leader Comparably, including Best Company Career Growth, Best Company Outlook, Best Global Culture, Best Engineering Teams, Best Sales Teams, and Best HR Teams.About UsWe are the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on Proofpoint to protect their organizations. We’re driven by a mission to stay ahead of bad actors and safeguard the digital world. Join us in our pursuit to defend data and protect people.Our BRAVE Values:At Proofpoint, we are BRAVE in everything we do, and our values aren’t just words—they shape how we work, collaborate, and grow.We seek people who are bold enough to challenge the status quo, responsive in the face of ever-evolving threats, and accountable for delivering real impact.We value those with a visionary mindset who anticipate what’s next and push cybersecurity forward, and we celebrate exceptional execution that ensures we continue to defend data and protect people.Proofpoint is an equal opportunity employer, we hire without consideration to race, religion, creed, color, national origin, age, gender, sexual orientation, marital status, veteran status or disability.Build Meaningful Connections:Find your network, your allies, and your biggest fans. We know that work is simply better when you’re surrounded by people who inspire you—who share ideas, cheer you on, and genuinely want to see you succeed. That’s why we offer social circles, sponsored networks, and connection points across teams and time zones—to help you find your people, build your community, and thrive together.Do Your Best Work:This isn’t just a job—it’s a mission to protect people and defend data in a world that never slows down. We’re building the future of human-centric cybersecurity, and that future belongs to all of us. We take ownership, move fast, and hold ourselves accountable—because that’s what it takes to stay ahead. And we do it together, winning as one.Build success on your terms:Be empowered to reach your full potential through meaningful challenges and personalized support—designed around you and your goals. Whether you're growing as a leader or leveling up from great to exceptional as an individual contributor, we’re here to help you get there.
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