Network Security Support Engineer Jobs

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Director, Software Engineering Overview Consumer Data Management (CDM) enables secure, compliant, and scalable consumer identity, consent, preference, and engagement capabilities across Mastercard’s ecosystem. We are looking for a Director, Software Engineering based in Dublin to lead engineering teams responsible for building, modernizing, and operating CDM platform capabilities. This role is focused on strong engineering leadership, AI-enabled PDLC/SDLC practices, modern delivery discipline, and building a flexible organization that can scale across platform priorities with quality, resilience, and security. Role • Lead engineering teams that design, build, test, release, and operate scalable, secure, and resilient CDM platform capabilities. • Set technical direction, guide architecture decisions, and translate product priorities into clear engineering outcomes. • Raise the quality bar across design, code quality, testing, performance, secure development, release readiness, and production support. AI-enabled Engineering & Modern Delivery • Drive modern PDLC/SDLC practices across planning, design, build, test, deploy, operate, and continuous improvement. • Apply AI responsibly across the engineering lifecycle, including analysis, design, coding, testing, documentation, operations, and producti

About Flexport: At Flexport, we believe global trade can move the human race forward. That’s why it’s our mission to make global commerce so easy there will be more of it. We’re shaping the future of a $10T industry with solutions powered by innovative technology and exceptional people. Today, companies of all sizes—from emerging brands to Fortune 500s—use Flexport technology to move more than $19B of merchandise across 112 countries a year. The recent global supply chain crisis has put Flexport center stage as we continue to play a pivotal role in how goods move around the world. We are proud to have the support of the best investors in the game who believe in our mission, solutions and people. Ready to tackle global challenges that impact business, society, and the environment? Come join us. Hundreds of engineers and thousands of freight operators around the world rely on Flexport's internal systems every single day to keep billions of dollars of freight moving. Keeping those systems — and the people who use them — secure is not a compliance checkbox. It's the core infrastructure for a company operating across 112 countries. The PSI (Platform, Security & Infrastructure) team is looking for a Senior Security Engineer to own the security of Flexport's corporate environment: endpoints, identity systems, internal networks, and the SaaS estate. This is a security engineering role, not an IT support role, and not a role where you write policies and hope for the best. You'll build, automate, and be on the ground when things get real. What You'll Do Endpoint & SaaS security Own and mature our endpoint security stack (EDR) across macOS and Windows fleets , writing device policy as code — configuration profiles, remediation scripts, and enforcement rules — with staged rollout and rollback built in. Own security configuration and monitoring for Flexport's critical SaaS applications (Google Workspace, Slack, and similar) through SSPM tooling, catching risk

Role Description: We are seeking a Technical Implementation Engineer to join Commercial Cyber Operations. This person will perform hands-on systems work across varied customer environments. Compliance Leads will own NIST SP 800-171 interpretation and assessment readiness; this engineer will implement, test, and document the required technical controls with support from a senior engineer. Responsibilities: The listed responsibilities are not exhaustive and additional responsibilities may be assigned based on the evolving needs of the organization. We are seeking a dynamic individual who is able to adapt and take on new responsibilities as they arise. Configure and secure Microsoft 365, Entra ID, Active Directory, Google Workspace, Google Cloud Identity, and related business systems. Deploy and operate endpoint-management controls across multiple mobile device management and unified endpoint management platforms, including Jamf and Microsoft Intune. Implement identity, multifactor authentication, permissions, endpoint security, logging, vulnerability management, patching, backup, and recovery controls. Support Windows, macOS, iOS, Android, networks, firewalls, VPNs, DNS, and secure remote access. Troubleshoot technical issues with customer IT teams, service providers, vendors, and Defense Unicorns engineers. Test completed changes and produce accurate configuration records, diagrams, evidence, and runbooks. Complete assigned implementation work on schedule and raise risks or blockers early. Help turn repeatable work into checklists, scripts, and automation. Minimum Experience and Qualifications: Experience administering, securing, and troubleshooting business IT environments. Hands-on experience with Microsoft 365, Entra ID, Active Directory, and Google Workspace. Mobile device management or unified endpoint management experience across more than one platform, including practical experience with Jamf and Microsoft Intune. Experience supporting Windows and macOS endpoi

The Platform team creates the technology that enables Spotify to learn quickly and scale easily, enabling rapid growth in our users and our business around the globe. Spanning many disciplines, we work to make the business work; creating the infrastructure, tooling, frameworks, and capabilities needed to welcome a billion customers. At Spotify, security helps make innovation possible. Our Enterprise Security team protects the systems and technology that support our employees and the more than 700 million people who use Spotify. We're looking for a Security Engineer to help strengthen our enterprise security across identity, devices, networks, and AI-powered tools. You'll build practical solutions, work with teams across the business, and help us create a secure environment where people can do their best work. What You'll Do Improve enterprise security by identifying risks and implementing solutions that protect Spotify while supporting a great employee experience. Design and build security tools, integrations, and automation to make security processes more effective and scalable. Analyze security data to identify gaps, understand emerging risks, and guide improvements. Implement security controls across identity and access management, enterprise applications, endpoints, and cloud-based services. Assess security risks associated with AI tools and agents, and help develop safeguards that support responsible adoption. Collaborate with IT, infrastructure, and security teams to strengthen security across devices, networks, and enterprise systems. Evaluate and improve enterprise security technologies, including managed browsers and device security tools. Share your expertise and work with colleagues across technical and non-technical teams to make security practices clear, practical, an

As a Senior Security Engineer focused on Datadog’s Cloud SIEM product, you will help shape the future of security operations by transforming real-world security expertise into scalable detection, investigation, and response capabilities. You will develop high-impact threat detection content, improve AI-assisted security workflows, and help defenders identify and respond to threats across cloud-native and enterprise environments. Working closely with Product, Engineering, and Security Research teams, you will influence the evolution of Datadog Security products while advancing detection coverage across emerging technologies and attack surfaces. This role offers the opportunity to contribute to open source initiatives, publish security research, and help define the next generation of agentic security operations capabilities. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You'll Do: Research attacker techniques, defensive strategies, and emerging threats, translating findings into scalable security capabilities that protect customers at cloud scale. Design and improve AI-powered investigation, threat hunting, and response workflows that support Datadog’s agentic SOC capabilities. Own the lifecycle of threat detections and automated security workflows, from research and design through deployment, measurement, and continuous improvement. Develop high-fidelity detection content across cloud platforms, SaaS applications, identity systems, endpoints, networks, and other modern attack surfaces. Partner with Product, Engineering, Security Research, and customers to influence roadmap decisions and improve security outcomes across the platform. Mentor security engineers and drive improvements through automation, tooling, rapid prototyping, and data-driven optimization. Who Yo

As a Senior Security Engineer focused on Datadog’s Cloud SIEM product, you will help shape the future of security operations by transforming real-world security expertise into scalable detection, investigation, and response capabilities. You will develop high-impact threat detection content, improve AI-assisted security workflows, and help defenders identify and respond to threats across cloud-native and enterprise environments. Working closely with Product, Engineering, and Security Research teams, you will influence the evolution of Datadog Security products while advancing detection coverage across emerging technologies and attack surfaces. This role offers the opportunity to contribute to open source initiatives, publish security research, and help define the next generation of agentic security operations capabilities. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You'll Do: Research attacker techniques, defensive strategies, and emerging threats, translating findings into scalable security capabilities that protect customers at cloud scale. Design and improve AI-powered investigation, threat hunting, and response workflows that support Datadog’s agentic SOC capabilities. Own the lifecycle of threat detections and automated security workflows, from research and design through deployment, measurement, and continuous improvement. Develop high-fidelity detection content across cloud platforms, SaaS applications, identity systems, endpoints, networks, and other modern attack surfaces. Partner with Product, Engineering, Security Research, and customers to influence roadmap decisions and improve security outcomes across the platform. Mentor security engineers and drive improvements through automation, tooling, rapid prototyping, and data-driven optimization. Who Yo

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but operational in how we execute, and we support every product and research effort at OpenAI. Our tenets include prioritizing for impact, enabling researchers and developers, preparing for future transformative technologies, and fostering a strong, collaborative security culture. About the Role OpenAI is seeking a Principal Software Engineer to join the Infrastructure Security (InfraSec) team. InfraSec safeguards the core of OpenAI’s research and production environments: GPU supercomputing clusters, multi-cloud infrastructure, datacenters, networking, storage, and the critical services that power our frontier AI models. Our charter spans everything from bare-metal hardware and firmware to Kubernetes clusters, service meshes, and the data pathways that carry highly sensitive model weights and user data. As a Principal Software Engineer, you will set technical direction and drive execution of critical foundational services, such as authentication systems, egress/ingress proxies, access brokers, and key management platforms, that demand high standards of reliability, scalability, and software craftsmanship. These systems form the security backbone of OpenAI’s customer and supercomputing environment and must remain robust under intense scale and adversarial pressure. In this role, you will: Own the architecture and roadmap for one or more core security services (e.g., authN/Z, policy enforcement, secure proxies, key management), taking them from design to rollout to long-term operation. Design and implement planet-scale security systems that provide strong guarantees across hardware, operating systems, Kubernetes, networks, and CI/CD: balancing security, reliability, latency, and developer ergonomics. Lead cross-functional launches

Who We Are Nuro is a self-driving technology company on a mission to make autonomy accessible to all. Founded in 2016, Nuro is building the world’s most scalable driver, combining cutting-edge AI with automotive-grade hardware. Nuro licenses its core technology, the Nuro Driver™, to support a wide range of applications, from robotaxis and commercial fleets to personally owned vehicles. With technology proven over years of self-driving deployments, Nuro gives the automakers and mobility platforms a clear path to AVs at commercial scale, empowering a safer, richer, and more connected future. About the Role As an Infrastructure Security Engineer, you will increase the security of Nuro’s core infrastructure used to develop and operate our autonomous delivery service. You will need to leverage your technical skills to create cross-functional strategic outcomes for Nuro. You will need to use good engineering judgment when evaluating and fixing both real and theoretical vulnerabilities. You work closely with development teams and can build systems. Your work contributes directly to the safety and security of the people in the communities we operate in. You’re a collaborative thinker with an ownership mindset, and thrive in fast-paced and collaborative environments. As a member of Nuro’s Security team, you will work on projects that impact all areas of security, from offensive testing to detection and response. About the Work Assess and secure Nuro and protect user data. Evaluate and verify engineering teams' vulnerability remediations (PR review or other evaluations) Design and build security tooling and infrastructure for use Nuro’s engineers Design and implement core security infrastructure like authentication and authorization systems, pipelines and automation for security incident detection and response, PKI, and others About You Expert in one or more core domains: Securely using a public cloud, securing corporate networks and endpoints, or application secu

Role Description: We are seeking a Senior Technical Implementation Engineer to join Commercial Cyber Operations. This person will lead hands-on technical work across varied customer environments. Compliance Leads will own NIST SP 800-171 interpretation and assessment readiness; this engineer will design, implement, and validate the systems that support those requirements. Responsibilities: The listed responsibilities are not exhaustive and additional responsibilities may be assigned based on the evolving needs of the organization. We are seeking a dynamic individual who is able to adapt and take on new responsibilities as they arise. Assess unfamiliar customer environments and lead technical implementation plans with the Compliance Lead. Configure and secure Microsoft 365, GCC High, Azure, Entra ID, Active Directory, Google Workspace, Google Cloud Identity, and hybrid environments. Design, migrate, and operate endpoint-management programs across multiple mobile device management and unified endpoint management platforms, including Jamf and Microsoft Intune. Implement identity, multifactor authentication, least privilege, endpoint security, logging, vulnerability management, patching, backup, and recovery controls. Configure and troubleshoot Windows, macOS, iOS, Android, networks, firewalls, VPNs, segmentation, DNS, and secure remote access. Work directly with customer IT teams, service providers, and vendors to resolve complex technical issues. Validate completed work and produce clear configuration records, diagrams, evidence, and runbooks. Guide other implementation engineers and turn repeatable work into standards, scripts, and automation. Minimum Experience and Qualifications: Senior-level experience designing, administering, securing, and troubleshooting varied business IT environments. Strong hands-on experience with both Microsoft and Google environments, including Microsoft 365, Entra ID, Active Directory, and Google Workspace. Broad mobile device management

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Security team protects OpenAI’s technology, people, and products. We are technical in what we build but operational in how we execute, and we support every product and research effort at OpenAI. Our tenets include prioritizing for impact, enabling researchers and developers, preparing for future transformative technologies, and fostering a strong, collaborative security culture. About the Role OpenAI is seeking a Security Software Engineer to join the Infrastructure Security (InfraSec) team. InfraSec safeguards the core of OpenAI’s research and production environments—GPU supercomputing clusters, multi-cloud infrastructure, datacenters, networking, storage, and the critical services that power our frontier AI models. Our charter spans everything from bare-metal hardware and firmware to Kubernetes clusters, service meshes, and the data pathways that carry highly sensitive model weights and user data. As a Security Software Engineer, you will design and build critical foundational services, such as authentication systems, egress/ingress proxies, access brokers, and key management platforms, that demand high standards of reliability, scalability, and software craftsmanship. These systems form the security backbone of OpenAI’s supercomputing environment and must remain robust under intense scale and adversarial pressure. In this role, you will: Architect and implement production-grade security services (e.g., auth services, access brokers, secure proxies, key-management infrastructure) that provide strong guarantees across hardware, operating systems, Kubernetes, networks, and CI/CD. Partner with infrastructure and research engineers to embed security into high-performance compute clusters, enabling rapid model training and deployment without compromising protection. Develop automation and detection tooling to continuously identif

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. As the Assembly and Test (AT) IP Security Engineer, you will be part of the AT BISO (Business Information Security Officer) Organization. You will partner with Micron’s Enterprise Infrastructure and Security (EIS) and your business area (Assembly and Test) to implement security controls, reduce risk, and maintain business continuity. You will work within Assembly and Test organizations (and sites) to identify risks, help classify data and establish processes which are aligned to Micron’s security disciplines. You will serve as an ambassador for Assembly and Test Organization to protect Micron’s most sensitive data (Intellectual Property). You will institutionalize a security-first culture across AT operations and ensure compliance with micron’s security standards, whilst ensuring AT Business continuity Key Responsibilities Act as a Liaison with EIS team and AT business are to support roadmaps, strategies, and requirements to improve Micron’s security policies. Bridge security goals and commitments with articulated business needs driving towards a common set of goals and objectives Participate in defining clear goals and strategic initiatives to improve our security posture in line with Micron’s 7 Security Disciplines. Secure Data Handling: Help secure micr

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Our vision is to transform how the world uses information to enrich life for all. Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Security Firmware Engineer at Micron Technology Inc., you will be providing the technical capability in the creation and integration of Security Firmware IP for use in SSD products. The lifecycle of this responsibility is associated with the organization's product development life cycle and can range from product inception to obsolescence or any portion that is defined by specific assignments. You will also be responsible for providing technical support to implement the development and quality assurance processes necessary to insure the firmware IP consistently provides the required functionality, security, usability, quality/reliability, performance, and ensure Micron SSDs meet their design targets. Responsibilities : DEVELOP AND TEST FIRMWARE SSD products: Develop Security firmware IP subsystems for SSD products that meet or exceed the requirements of the technical spec matrix; including, but not limited to: Security, Performance, Functionality,

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Our vision is to transform how the world uses information to enrich life for all. Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As a Security Firmware Engineer at Micron Technology Inc., you will be providing the technical capability in the creation and integration of Security Firmware IP for use in SSD products. The lifecycle of this responsibility is associated with the organization's product development life cycle and can range from product inception to obsolescence or any portion that is defined by specific assignments. You will also be responsible for providing technical support to implement the development and quality assurance processes necessary to insure the firmware IP consistently provides the required functionality, security, usability, quality/reliability, performance, and ensure Micron SSDs meet their design targets. Responsibilities: DEVELOP AND TEST FIRMWARE SSD products: Develop Security firmware IP subsystems for SSD products that meet or exceed the requirements of the technical spec matrix; including, but not limited to: Security,

Who we are About the team Link is a digital wallet designed for effortless and secure online payments and digital transactions. With Link, consumers enjoy convenience and peace of mind—it works on any device or browser, is backed by the highest security mechanisms, offers purchase protections on eligible items, and ensures seamless and quick payments. Across the Link Engineering org, we focus on building delightful payment experiences and allowing our global consumer base to pay with their preferred payment methods. Our team's work spans the entire stack from front-end experiences, to infrastructure that supports low-latency transactions, to intelligent systems that help protect consumers and merchants from bad actors. Team matching for one of the subteams will begin during final stages. Please note we may also consider you for different orgs based on your experience, location, etc. More information on our team matching process can be found here . What you'll do We're looking for engineers who want to make an impact on payments at a global scale. You'll play a key role in expanding our product suite and the infrastructure that supports it. Our team collaborates with many cross-functional teams and many other teams across Stripe to deliver innovative solutions that address evolving user needs. Responsibilities Build and design the next generation of Stripe products to meet the high-growth needs of our company and customers for years to come Debug and solve critical production issues across services and multiple levels of the stack Mentor engineers to help them grow Collaborate with stakeholders across the company to build new features at large-scale, while improving internal engineering standards, tooling, and processes Collaborate effectively in a distributed and hybrid team, maintaining open communication and strong connections with colleagues Who you are We're looking for someone who meets the minimum requirements to be considered for the role. If you meet these r

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. As the Global Facilities Regional Engineering I&C Engineer we are looking for someone to be responsible for providing technical support, expertise, and lead business process alignment on construction project design, management, schedule, cost control, testing & commissioning, and operational and maintenance programs for the facility systems. This includes I&C, SCADA, Life Safety system, Toxic Gas Monitoring, Telecom, Security, IoT systems at all manufacturing sites in your location / region. As a distributed team member residing in your current site/geography, you will represent all facility design standard alignment, construction project management, and O&M BKM alignment initiatives! You will also support the Global Facilities Central Engineering Team, Construction Team, Line Planning Team and O&M Team in providing critical design standard alignment, supplier quality improvement, operational and maintenance input, and support construction projects