Senior Security Software Engineer - Cloud & Infrastructure Security

At StubHub, we are committed to revolutionizing the global live event experience. Our goal is to ensure that every fan—from first-time attendees to seasoned concert-goers—enjoys a seamless journey from ticket discovery to event entry. We also prioritize our sellers, whether they are individual fans or large-scale promoters, providing a secure and convenient platform for ticket sales to millions of users worldwide.About the Team:Join the StubHub Cloud & Infrastructure Security Engineering team, where we are looking for a seasoned engineer to fortify our security framework in the cloud and infrastructure sectors. The ideal candidate will have a robust background in cloud security architecture, network security, and infrastructure automation, along with knowledge of container and operating system security.

Join Ramp as a Cloud Security Engineer and be part of a dynamic team dedicated to safeguarding our cloud infrastructure. In this role, you will leverage your expertise to design, implement, and maintain robust security measures that protect our clients' data and ensure compliance with industry standards.

CLEAR builds secure identity technology for both digital and physical spaces. With more than 38 million members and a growing global partner network, CLEAR’s platform helps people move through airports, stadiums, workplaces, and daily routines with greater safety and ease. Role Overview The Senior Security Engineer on the Infrastructure Security Engineering (ISE) team protects CLEAR’s core platforms. This position focuses on cloud security, identity management, and endpoint controls. The work centers on AWS and Kubernetes environments, using infrastructure-as-code to scale and automate security practices. What You Will Do Strengthen security across AWS and Kubernetes infrastructure Develop and implement security controls using infrastructure-as-code Work closely with Engineering, CorpIT, and Security teams to make security a default part of CLEAR’s systems Location This role is based in New York, New York, United States.

About the Role Sigma Computing is seeking a Senior Security Engineer II focused on Cloud & Data Security to help safeguard our large-scale, cloud-native SaaS platform. This position centers on engineering: building security solutions, not just operating existing tools. The role calls for a subject matter expert in cloud security architecture. Collaboration with Engineering, Security, and Product teams is key, as is designing scalable controls that support business growth. Responsibilities include creating secure architectures, integrating controls into infrastructure-as-code, and setting up automated guardrails so teams can move quickly without waiting for manual security sign-offs. This is a hands-on position for someone who thrives in complex cloud environments, values automation, and knows how to scale security for a growing SaaS company. What You Will Do Architectural Leadership: Work closely with infrastructure and engineering teams to embed security into development workflows. Lead technical discussions that shape security strategy and initiatives. Multi-Cloud Engineering: Design, implement, and refine Sigma’s cloud security across AWS, GCP, and Azure, using deep architectural expertise. Threat Modeling & Incident Response: Conduct threat modeling for cloud environments and handle incident response, including investigation and remediation of malicious activity. Identity & Access Management: Develop strategies for IAM and privileged access (RBAC/ABAC, federation, least privilege, cross-account access). Remove standing privileges and long-lived credentials, and promote zero-trust and privileged access controls across IaaS and SaaS. Cloud Data Security Controls: Implement data classification, encryption/KMS, masking/tokenization, access governance, retention and deletion policies, and reduce exfiltration risks across APIs and data pipelines. Automated Remediation Workflows: Build automated responses for recurring cloud misconfigurations, drift, and policy violations to improve operational efficiency and response times. Security Stack Management: Deploy and manage cloud-native services, including CSPM, CNAPP, DSPM, SIEM, DLP, WAF, Kubernetes, and container security tools. Network Defense: Evaluate and implement zero-trust network security measures. Location: New York City, NY

Join Ro, a pioneering direct-to-patient healthcare company, dedicated to empowering patients in achieving their health goals through seamless and effective care. We uniquely provide nationwide telehealth, lab, and pharmacy services, all through our vertically integrated platform that ensures a convenient, end-to-end healthcare experience—from initial diagnosis to medication delivery and ongoing care. Since our inception in 2017, Ro has positively impacted millions of patients, covering every county in the United States and reaching 98% of primary care deserts.Recognized as a Fortune Best Workplace in New York and Health Care for four consecutive years (2021-2024), Ro was also honored as the Best Workplace for Parents for three years in a row in 2023, and featured in the CNBC Disruptor 50 list in 2022.The Cloud Security team at Ro is committed to safeguarding the security and privacy of our patients by continuously enhancing security measures across our cloud environments. We collaborate closely with engineers and leaders across Ro’s platform, data, and product teams to develop, implement, and communicate a comprehensive security approach. In this role, you will play a pivotal part in strategic initiatives, providing engineering expertise to help make informed, scalable, secure, and privacy-respecting decisions, all while embracing a hands-on builder mindset to integrate security into our processes.This senior-level individual contributor position requires you to act as a hands-on technical expert, developing internal products and infrastructure to bolster Ro’s cloud security posture and fulfill compliance objectives. As a vital member of the Product Security team, which encompasses expertise in product security, cloud security, architecture, and privacy engineering, you will design and automate scalable architectures and tools. You will advocate for secure cloud security decisions, lead discussions and designs, and work closely with Ro’s infrastructure and engineering teams to create secure infrastructure solutions.Your exceptional communication skills and collaborative spirit will be essential to your success in this role.

About TraversalTraversal stands at the forefront of AI Site Reliability Engineering (SRE), trusted by leading enterprises globally to troubleshoot, remediate, and preemptively manage complex production incidents. Our mission is to liberate engineers from continuous firefighting, allowing them to channel their talents into innovative, impactful work.With deep roots in AI research, we are committed to establishing the premier AI agent lab for enterprises. Our greatest asset is our team, comprised of exceptionally skilled and kind individuals, including researchers from prestigious institutions such as MIT, Harvard, and Berkeley, alongside world-class engineers from industry leaders like Citadel Securities, Cockroach Labs, Datadog, and more. Together, we tackle one of AI's most challenging problems.The RoleAs an Infrastructure & Application Security Engineer at Traversal, you will be instrumental in constructing our security program from the ground up. This hands-on role is ideal for someone passionate about security, enthusiastic about Kubernetes, and eager to build—transforming risk into automated, measurable, and low-friction guardrails that engineers can leverage daily. You will work at the intersection of Kubernetes security, service-to-service security (including Istio Ambient), and application security for Python APIs within a multi-tenant SaaS environment, collaborating closely across engineering teams with a focus on deploying mechanisms rather than creating presentations.

Join Scale AI as a talented Infrastructure Security Engineer, where you'll play a pivotal role in safeguarding the integrity and security of our platform. This position focuses on securing expansive cloud environments, managing and fortifying various compute clusters, and reviewing infrastructure as code. Your proficiency in cloud security, infrastructure automation, and advanced security practices will be crucial in upholding and advancing our security framework.Your responsibilities include:Securing infrastructure across major cloud hosting platforms (e.g., AWS, Azure, GCP).Implementing and maintaining comprehensive security configurations and policies for cloud environments.Conducting regular security assessments and audits to identify vulnerabilities and propose enhancements.Developing and enforcing security best practices for infrastructure automation and orchestration.Collaborating with Developer Experience, IT, and product teams to integrate security into every phase of the infrastructure lifecycle.Reviewing and securing infrastructure as code (e.g., Terraform, CloudFormation).Mentoring team members on infrastructure security best practices and emerging threats.

Role Overview Datadog is seeking a Senior Cloud Security Engineer with deep experience in Kubernetes to join the Platform Security division in New York. This group focuses on protecting the core components of Datadog’s applications and infrastructure, working to reduce systemic risks and support secure business growth. What You Will Do Collaborate with teams across the company to strengthen cloud infrastructure security Design and implement solutions that address risks in a scalable, secure way Work closely with internal product teams, including those building and using AI technologies Develop and refine AI-driven security mechanisms to protect Datadog’s environment Contribute to internal projects that provide insight into Datadog’s infrastructure What We’re Looking For Significant expertise in Kubernetes and Service Mesh technologies Strong background in cloud security engineering Interest in building secure, scalable solutions for complex environments Experience collaborating with cross-functional teams Workplace Culture Datadog values a workplace where relationships, creativity, and collaboration thrive. The company operates in a hybrid model, supporting work-life balance for employees. Location This position is based in New York, New York, USA.

CoreWeave is the definitive cloud solution for AI™. Designed by innovators for innovators, we provide a robust platform of technology, tools, and expert teams that empower trailblazers to confidently build and scale AI solutions. Trusted by top AI research labs, startups, and global enterprises, CoreWeave merges exceptional infrastructure performance with profound technical know-how to expedite breakthroughs and transform computing power into actionable capability. Established in 2017, CoreWeave became publicly traded (Nasdaq: CRWV) in March 2025. Discover more at www.coreweave.com.What You Will Do:The Enterprise Security team at CoreWeave is tasked with safeguarding our daily operations—covering identity, endpoints, networks, and SaaS—ensuring the company can maintain agility without sacrificing security. This team is accountable for the controls, guardrails, and automation that protect our workforce, contractors, and vital business applications within a cloud-native environment.If you're passionate about zero trust, phishing-resistant MFA, and creating secure-by-default experiences that enhance productivity, this is the perfect team for you.About the Role:As a Senior Security Engineer, Enterprise Security, you will architect and implement the security measures that support CoreWeave's workforce and enterprise framework. You will spearhead projects related to identity, access management, device and endpoint security, and SaaS security—collaborating closely with IT Engineering, Endpoint, Network, and various security teams.Your routine will involve a blend of hands-on engineering (coding, building integrations, fine-tuning controls) and architecture and program leadership (setting standards, defining frameworks, and encouraging adoption across teams). You will be accountable for transforming high-level goals—such as “implementing zero trust for workforce access” or “deploying phishing-resistant MFA at scale”—into tangible designs, automation, and quantifiable risk reduction.In this position, you will:Develop advanced identity and access controls

HHAeXchange is at the forefront of technology solutions for home and community-based care. Established in 2008, our mission is to create a comprehensive, end-to-end homecare ecosystem that empowers aging individuals and those with disabilities to thrive within their communities. Our dedicated team is passionate about revolutionizing healthcare by seamlessly connecting patients, personal care providers, managed care organizations, and state agencies. We are currently on the lookout for a Principal Cloud Security Engineer to join our expanding Cybersecurity team. In this pivotal role, you will lead initiatives to validate our security posture, manage and implement cutting-edge technical solutions, enhance existing security protocols, and establish robust security standards and policies. As a subject matter expert, you will develop reusable and secure solutions while cultivating strong relationships across HHAeXchange, technical teams, and customers. Your expertise will ensure alignment between our overall security strategy, HHAeXchange’s strategic objectives, and compliance requirements. You will maintain senior-level proficiency across various technical domains, particularly in Cloud and Incident Response, engage in proof-of-concept projects, adopt innovative and business-aligned technology platforms, and expand your areas of expertise as our business evolves. To excel in this role, you must be capable of fulfilling each essential duty satisfactorily. We are committed to providing reasonable accommodations to enable individuals with disabilities to perform essential functions.

Join Palantir Technologies as a Product Infrastructure Security Engineer in New York. In this role, you will play a critical part in securing our infrastructure, ensuring that our products and services maintain the highest standards of security and reliability. You will work with top-tier engineering teams to identify vulnerabilities, implement robust security measures, and contribute to the overall security architecture of our systems.

Join MongoDB as a Senior Software Engineer within the Atlas Clusters Organization, a team that's pivotal in developing MongoDB Atlas, our premier database-as-a-service offering and the fastest-growing product in our portfolio. Atlas empowers users to effortlessly deploy secure, fault-tolerant, and globally distributed MongoDB clusters within minutes. You will be instrumental in crafting software that interfaces with major cloud providers (AWS, Azure, and GCP) to ensure security, durability, availability, and performance across all MongoDB deployments. The Atlas Clusters Security team is dedicated to delivering a top-tier cloud database security experience to our diverse clientele. Our team works on developing and maintaining essential systems for cluster networking, data encryption, database authentication, and more, enabling critical applications around the globe. This position is available in New York City with the flexibility of a hybrid work model or can be remote for candidates on the East Coast.

Role overview modal seeks an Infrastructure Security Engineer based in New York. The position centers on safeguarding digital infrastructure and securing core systems that support daily operations. Key responsibilities Design and apply security controls across infrastructure components Perform risk assessments to spot and address vulnerabilities Monitor compliance with industry regulations and standards Strengthen systems to withstand new and evolving security threats Impact This role plays a direct part in protecting modal’s operations. By reducing risks and supporting secure growth, the Infrastructure Security Engineer helps maintain the safety and integrity of the company’s technology foundation.

CoreWeave is seeking a Security Engineering Manager to lead the Platform Security team. This position is based in Livingston, NJ, New York, NY, Sunnyvale, CA, Bellevue, WA, or San Francisco, CA. The team’s mission is to embed security into CoreWeave’s Kubernetes-based platform and public cloud environments, supporting high-performance infrastructure for AI and machine learning workloads. Role overview This manager will oversee and expand the Platform Security engineering team, reporting to the Senior Director of Security Foundations. The focus is on hands-on leadership and technical execution, with an emphasis on building and implementing security controls rather than policy development. The role requires close collaboration with Infrastructure, Platform Engineering, Site Reliability Engineering, and other security teams to ensure security measures keep pace with business growth and evolving needs. What you will do Lead and grow the Platform Security engineering team. Integrate security into Kubernetes infrastructure and public cloud platforms such as AWS, GCP, and Azure. Define and execute strategies for cloud security posture, workload isolation, platform guardrails, image integrity, and multi-cloud security. Develop and implement security controls across CoreWeave’s infrastructure. Work closely with other technical teams to align platform security with business needs. The Platform Security team The Platform Security team at CoreWeave engineers systems that enforce security at the infrastructure layer. Their work spans both CoreWeave’s own Kubernetes-based platform and third-party public cloud environments. The team supports GPU-accelerated infrastructure for demanding AI and machine learning workloads, ensuring that both customer and internal services remain secure as CoreWeave’s global presence expands.

Why Join Rogo?At Rogo, we are pioneering Wall Street's first authentic AI analyst. Our goal is to empower finance professionals at the world's leading investment banks, private equity funds, and investment firms with AI that provides unmatched speed, accuracy, and insights. We are not merely enhancing financial workflows; we are transforming them fundamentally.This is an extraordinary chance to be part of a transformative company at a pivotal moment. With a rapidly expanding client base, solid product-market alignment, and backing from elite investors, we are scaling swiftly and carving out a new niche in enterprise AI.Our team is intelligent, driven, and wholeheartedly committed to our mission. We work with passion, take ownership of intricate challenges, and maintain a steadfast focus on our users. If you flourish in a dynamic environment, demand excellence, and aspire to help shape the future of finance, we encourage you to apply.The OpportunityRogo is seeking a Staff Security Engineer to spearhead the design and implementation of cloud security architecture across AWS and GCP. This hands-on role is ideal for an engineer who has experience building and managing secure cloud platforms at scale and prefers solving security challenges through code, systems design, and automation rather than relying solely on policy.You will be responsible for the technical direction of cloud security at Rogo: devising secure primitives, authoring Terraform at scale, shaping identity and network architecture, and integrating security into the core platform. You will serve as a senior technical leader while also engaging in tactical tasks such as writing production code, reviewing infrastructure changes, and providing pragmatic security solutions to unblock teams.Your ResponsibilitiesArchitect and implement foundational cloud security measures across AWS and GCP, encompassing account/project structure, IAM models, network segmentation, and secure service-to-service communication.Own and create Terraform-based security architecture, including:Reusable, opinionated Terraform modules for IAM, networking, logging, and encryptionPolicy enforcement and guardrails to prevent insecure infrastructure deploymentsSecure defaults embedded directly into infrastructure primitivesDesign and manage cloud identity systems at scale, including workload identity, service accounts, role assumption, and cross-cloud access patterns.Lead the security design of cloud networking, ensuring robust configurations and compliance.

About the Team The Server Security team at MongoDB, Inc. is part of the core engineering group, focused on advancing database user security at a global level. Based in New York City, this team designs and builds security features that support MongoDB’s distributed database platform. What You Will Work On Cryptography: Implement Queryable Encryption, at-rest data encryption, and core cryptographic features. For more details on Queryable Encryption, see the MongoDB documentation. Identity & Access: Design authentication and authorization systems, manage TLS, and work with X.509 certificates. Network Security: Develop networking protocols that are both high-performance and low-latency, including PKI, Hashing, and Certificate Revocation Lists (CRLs). System Integrity: Build features that support resilience, observability, and compliance for large-scale distributed systems. Team Culture MongoDB values inclusivity, diversity, and collaboration. The Server Security team applies distributed systems principles to deliver essential features for application developers, system architects, and database operators.

At January, we are on a mission to revolutionize consumer finance from the ground up. By personalizing interactions and optimizing decision-making throughout all stages of consumer credit, we empower both consumers and creditors, ensuring that credit is fair, accessible, and tailored to individual needs.As a Lead Security Engineer, you will redefine security standards in an industry where trust has been significantly compromised. This is a unique opportunity to join us at a pivotal moment: we have established the hard-earned trust of leading financial institutions, and now you will create the security framework that extends this trust to millions of consumers.You will design and implement a dual trust architecture, safeguarding both consumer-facing experiences and robust enterprise systems. You will tackle technical challenges that are unparalleled in the industry, such as privacy-preserving data systems, compliance automation across multiple jurisdictions, and AI-driven decision-making processes. Your influence will shape our security strategy and culture from the ground up, demonstrating that security is not merely an overhead cost, but a competitive advantage that drives enterprise partnerships and market growth.Your ImpactTransform security into a competitive edge: Position January's security as a key differentiator that attracts banks and enterprises, unlocking Tier 1 partnerships and deals that competitors cannot secure.Promote security-by-design in product and application development: Collaborate with product and engineering teams to identify critical risks early in the process, focusing on application security across frontend, Flask services, and databases. Integrate security into the discovery and design phases, ensuring secure development patterns are embedded in workflows.Design systems for bank-grade data protection: Create and enforce data classification, encryption, and access control mechanisms that comply with regulatory standards, ensuring sensitive data remains within authorized boundaries.Foster a security-first engineering culture: Advocate for security-centric thinking within engineering teams without hindering progress. Lead incident responses decisively, ensuring that January emerges stronger from security events through thorough post-incident analyses.Streamline compliance with minimal overhead: Maintain SOC 2, PCI-DSS, and financial compliance using automated systems and build infrastructure that generates audit evidence seamlessly, eliminating compliance bottlenecks.

About Our CompanyGeneral IntuitionAs a pioneering research lab, we are committed to advancing foundation models tailored for environments that demand intricate spatial and temporal reasoning. Over the past year, we have been at the forefront of AI innovation, developing agents adept at navigating complex environments, creating world models that serve as training grounds for these agents, and enhancing video understanding models with an emphasis on real-world applicability.With a successful seed round of $133M secured from General Catalyst and Khosla, we are poised to establish ourselves as the leading AI lab specializing in embodied agents.Your RoleAt General Intuition, alongside our sister company Medal, we operate at the convergence of large-scale gaming data, cutting-edge AI research, and rapid product engineering. In this vital role, you will be responsible for securing the infrastructure that connects these domains. Your tasks will include fortifying our cloud environments, safeguarding our data pipelines, and ensuring our deployment systems are resilient against supply-chain attacks and other potential threats.You will create secure-by-default frameworks without hindering the efficiency of research or product teams, integrating standard security tools with customized protections as needed. Your contributions will significantly minimize operational risks for both General Intuition and Medal, helping us maintain trust as we expand sensitive AI workflows and large creator-driven platforms.

Why Join UsAt Brex, we are transforming the way businesses manage their expenses through our innovative AI-powered spend platform. By integrating corporate cards, banking, and global payments with user-friendly software for travel and expenses, we empower companies—from startups to large enterprises like DoorDash, Flexport, and Compass—to control their spending proactively, reduce costs, and enhance efficiency on a global scale.Joining Brex means you will push boundaries, challenge conventional thinking, and collaborate with some of the brightest minds in the industry. We are dedicated to fostering a diverse team and inclusive culture, believing that your potential is only limited by your ambition. We provide you with the tools, resources, and support necessary to elevate your career.Engineering at BrexOur engineering approach at Brex focuses on building scalable systems with intention and speed. Our teams, which encompass Software, Data, Security, and IT, operate with a high degree of autonomy and foster deep collaboration. We take on complex technical challenges, take ownership of our results, and strive for excellence across all stages—from architecture to deployment. At Brex, engineering is a craft, and our builders evolve into leaders.Your RoleAs a Senior Security Operations Engineer at Brex, your mission will be to prevent, detect, and respond to security threats across our corporate and cloud environments. You will leverage existing systems and develop new tools to enhance our security capabilities. Our team is responsible for various functions in corporate security, detection & response, and infrastructure security domains, employing systems engineering and automation to support these functions.Security Operations is nested within our broader Trust & IT organization, providing opportunities to collaborate closely with Application Security, Corporate Engineering, Governance, Risk & Compliance (GRC), and IT. You will work to enhance security configurations, promote positive employee behaviors, and prevent incidents from escalating. Furthermore, you will contribute to our open-source project Substation and have the chance to share insights on the Brex Tech Blog. You will be part of a team that actively engages with the broader security community, committed to mentorship and engineering excellence.We seek individuals with a robust background and a keen interest in detecting, responding to, and resolving security incidents and challenges. You should be passionate about security and eager to contribute to a forward-thinking team.

About the RoleJoin our dynamic team at FanDuel as we seek a skilled Senior Enterprise Security Engineer. This pivotal role requires a professional who is dedicated to crafting and implementing enterprise security control strategies, while also shaping our security posture. You will play a key role in balancing risk reduction with user experience and operational enablement at scale.Reporting directly to the Senior Manager of Enterprise Security Engineering, you will tackle diverse security challenges and lead initiatives that foster a secure environment for our operations.Your ResponsibilitiesImplement cutting-edge models such as “secure by default” and “zero trust” to maintain a robust security posture.Act as a security subject matter expert, collaborating with internal teams to meet business objectives and overcome security challenges.Develop and manage team roadmaps while staying informed of the latest threats and identifying security risks independently.Utilize automation and development approaches to enhance enterprise-wide security controls.Employ AI technologies to amplify the effectiveness of Security Engineering and FanDuel's operations.Support the security organization as needed, fostering a collaborative team environment.What We’re Looking ForProven expertise in security engineering across multiple domains, including Zero Trust, Endpoint Security, Data Protection, and more.Intermediate proficiency in scripting languages such as Python, Go, or Ruby; experience with Python and PowerShell is a plus.Familiarity with identity access management frameworks and protocols like SAML, SCIM, OAuth, and WebAuthN.Ability to model threats to corporate infrastructure and implement preventative architectures and controls.Strong communication skills to work effectively with a diverse range of partners, from engineering to legal teams.Adeptness in navigating rapidly evolving environments with a focus on solving ambiguous challenges.